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5. Resin Cement to Indirect Composite Resin Bonding: Effect of Various Surface Treatments

Author

Kirmali, Omer, Barutcugil, Cagatay, Harorli, Osman, Kapdan, Alper, Er, Kursat, [Kirmali, Omer] Akdeniz Univ, Dept Prosthodont, Fac Dent, TR-07058 Antalya, Turkey -- [Barutcugil, Cagatay -- Harorli, Osman] Akdeniz Univ, Dept Restorat Dent, Fac Dent, TR-07058 Antalya, Turkey -- [Kapdan, Alper] Cumhuriyet Univ, Dept Restorat Dent, Fac Dent, Sivas, Turkey -- [Er, Kursat] Akdeniz Univ, Dept Endodont, Fac Dent, TR-07058 Antalya, Turkey, Barutcugil, Cagatay -- 0000-0002-5321-2299, Er, Kursat -- 0000-0002-0667-4909, Kirmali, Omer -- 0000-0002-4313-344X, and harorli, osman tolga -- 0000-0001-6828-5063

Subjects
bond strength, YAG laser [Nd], SEM, surface treatment, indirect composite resin
Abstract

WOS: 000352814100001, PubMed ID: 25488400, Debonding at the composite-adhesive interface is a major problem for indirect composite restorations. The aim of this study was to evaluate the bond strength (BS) of an indirect composite resin after various surface treatments (air-abrasion with Al2O3, phosphoric acid-etchig and different applications of NdYAG laser irradiations). Fifty composite disks were subjected to secondary curing to complete polymerization and randomly divided into five experimental groups (n=10) including Group 1, untreated (control); Group 2, phosphoric acid-etched; Group 3, air-abrasion with Al2O3; Group 4, Nd:YAG laser irradiated with non-contact and Group 5, Nd:YAG laser irradiated with contact. They were then bonded to resin cement and shear BS was determined in a universal testing device at a crosshead speed of 1mm/min. One way analysis of variance (ANOVA) and Tukey post-hoc tests were used to analyze the BS values. The highest BS value was observed in Group 4 and followed by Group 3. Tukey test showed that there was no statistical difference between Group1, 2 and 5. Furthermore, differences in BSs between Group 4 and the other groups except Group 3 were significant (p

Published
2015

8. Effects of Sandblasting and Laser Irradiation on Shear Bond Strength of Low-fusing Porcelain to Titanium.

Author

Akin, Hakan, Tugut, Faik, Topcuoglu, Sedef, and Kirmali, Omer

Subjects
LASERS in dentistry, IRRADIATION, SHEAR (Mechanics), BOND strengths, DENTAL ceramics, TITANIUM, U-statistics, SCANNING electron microscopes, OXYGEN, DENTAL adhesives
Abstract

Purpose: To investigate the bond strength of low-fusing porcelain to commercially pure titanium (Ti) that was laser irradiated with different levels of energy and sandblasted. Materials and Methods: A total of 30 titanium rods (10 mm in length and 12 mm in diameter) were prepared. The rods were divided into three groups (n = 10) according to surface treatments: SB: sandblasted; L1: Nd:YAG laser irradiated at 100 mJ, 10 Hz, and 1 W; L2: Nd:YAG laser irradiated at 200 mJ, 10 Hz, and 2 W. After surface treatment, low-fusing porcelain was applied onto the titanium specimens according to the manufacturer's instructions, and these specimens were stored in distilled water at 37°C for 24 h. The shear bond strength test was performed at a crosshead speed of 1 mm/min. In addition, Kruskal-Wallis and Mann-Whitney U-tests were used to compare the bond strength results (α= 0.05). SEM and EDS analysis were also performed for one specimen of each group after the shear bond strength test to evaluate the nature of the fracture surface. Results: Group L2 produced the highest shear bond strength among the groups. There was a statistically significant difference in shear bond strength between groups L1 and L2 (p < 0.001). Nevertheless, no significant difference was found between groups SB and L1. EDS analysis revealed that laser treatment reduced presence of oxygen on the surface of Ti. In contrast to the sandblasted specimens, laser-irradiated specimens showed predominantly adhesive failure. Conclusion: Laser treatment may be an alternative method to sandblasting for enhancing the bond strength of low-fusing porcelain to commercially pure titanium. [ABSTRACT FROM AUTHOR]

Published
2013
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9. Clinical Evaluation of Lateral and Osteotome Techniques for Sinus Floor Elevation in the Presence of an Antral Pseudocyst.

Author

Kara, M. Isa, Kirmali, Omer, and Ay, Sinan

Subjects
MAXILLARY sinus surgery, OSTEOTOMY, CYSTS (Pathology), HEALTH outcome assessment, TREATMENT effectiveness, RETROSPECTIVE studies, DESCRIPTIVE statistics, DISEASE complications
Abstract

Purpose: The aim of this retrospective study was to evaluate results and complications in sinus floor augmentations performed in the presence of antral pseudocyst. Materials and Methods: Two hundred thirty-five sinus floor augmentation procedures performed in 179 patients (102 men and 77 women; mean age, 46.3 years; range 24 to 77 years) were included in the study. All patients had been admitted between 2007 and 2010 and treated with sinus augmentation in a single-stage or two-stage procedure using lateral sinus floor elevation (LSFE) or in a single stage via osteotome sinus floor elevation (OSFE). Results: A total of 29 (16.2%) patients had 32 (13.6%) sinus floor augmentation procedures performed in the presence of an antral pseudocyst. Faint dome-shaped radiopacities were detected at the floor of the antrum of these patients. No sinus membrane tears occurred during elevation in the LSFE group. Two patients in the LSFE group and one patient in the OSFE group developed acute sinusitis during the postoperative period and were treated with medical therapy. No symptoms of acute sinusitis or any other complications were encountered in the remaining patients after an average 17-month follow-up period. Conclusions: Pseudocysts of the maxillary sinus may not be a contraindication for sinus augmentation by OSFE or LSFE techniques. However, detailed evaluation of patients is crucial to prevent undesirable complications. Further studies of larger patient populations are needed to reach definitive conclusions. [ABSTRACT FROM AUTHOR]

Published
2012

25. Effects of dentin surface treatments including Er,Cr:YSGG laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin.

Author

Kirmali, Omer, Kustarci, Alper, Kapdan, Alper, and Er, Kursat

Subjects
*DENTIN, *DENTAL fillings, *GLASS fibers, *ERBIUM compounds, *YTTRIUM compounds, *LASER beams, *PHYSIOLOGY
Abstract

Objective. Intra-canal post systems are commonly used to restore root-filled teeth. Bond strengths of the posts can be affected by various surface treatments of the post or the dentin. The aim of this study was to evaluate the effects of dentin surface treatments including erbium-chromium; yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin. Materials and methods. Forty single-rooted human maxillary incisors were filled and post spaces were prepared. After these procedures, the specimens were divided randomly into four groups according to the dentin surface treatments, as follows: (i) untreated surface (control), (ii) 1W Er,Cr:YSGG laser application, (iii) 2W Er,Cr:YSGG laser application and (iv) 3W Er,Cr:YSGG laser application. Then the posts were cemented into the root canals using dual-cured resin cement. Bonded specimens were cut into 1-mm-thick slices and push-out tests were performed using a universal testing device. All specimens were loaded until fracture and the failure modes were evaluated with a stereomicroscope at 32× magnification. Representative specimens were analyzed by scanning electron microscopy. Data were analyzed using a one-way ANOVA, Tukey and Wilcoxon tests. Results. The bond strength values ranged from 3.22-4.68 MPa. There were no statistically significant differences among the groups, regardless of the different levels. The coronal and middle levels of the post space had significantly higher bond strength values compared with the apical level ( p < 0.05). Conclusion. Er,Cr:YSGG laser irradiation with different intensities did not increase the bond strength of the fiber posts to the root canal dentin walls. [ABSTRACT FROM AUTHOR]

Published
2015
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26. Efficacy of ceramic repair material on the bond strength of composite resin to zirconia ceramic.

Author

Kirmali, Omer, Kapdan, Alper, Harorli, Osman Tolga, Barutcugil, Cagatay, and Ozarslan, Mehmet Mustafa

Subjects
*BOND strengths, *DENTAL resins, *DENTAL ceramics, *COMPOSITE materials research, *DENTAL bonding, *DENTAL materials, *DENTAL chemistry
Abstract

Objective. The aim of this study was to evaluate the shear bond strength of composite resin in five different repair systems. Materials and methods. Sixty specimens (7 mm in diameter and 3 mm in height) of zirconia ceramic were fabricated. All specimen surfaces were prepared with a 30 µm fine diamond rotary cutting instrument with water irrigation for 10 s and dried with oil-free air. Specimens were then randomly divided into six groups for the following different intra-oral repair systems ( n = 10): Group 1, control group; Group 2, Cojet system (3M ESPE, Seefeld, Germany); Group 3, Cimara® System (Voco, Cuxhaven, Germany); Group 4, Z-Prime Plus System (Bisco Inc., Schaumburg, IL); Group 5, Clearfil™ System (Kuraray, Osaka, Japan); and Group 6, Z-Bond System (Danville, CA). After surface conditioning, a composite resin Grandio (Voco, Cuxhaven, Germany) was applied to the zirconia surface using a cylindrical mold (5 mm in diameter and 3 mm in length) and incrementally filled up, according to the manufacturer's instructions of each intra-oral system. Each specimen was subjected to a shear load at a crosshead speed of 1 mm/min until fracture. One-way analysis of variance (ANOVA) and Tukey post-hoc tests were used to analyze the bond strength values. Results. There were significant differences between Groups 2-6 and Group 1. The highest bond strength values were obtained with Group 2 (17.26 ± 3.22) and Group 3 (17.31 ± 3.62), while the lowest values were observed with Group 1 (8.96 ± 1.62) and Group 6 (12.85 ± 3.95). Conclusion. All repair systems tested increased the bond strength values between zirconia and composite resin that used surface grinding with a diamond bur. [ABSTRACT FROM AUTHOR]

Published
2015
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27. Evaluation of the surface roughness of zirconia ceramics after different surface treatments.

Author

Kirmali, Omer, Akin, Hakan, and Kapdan, Alper

Subjects
*SURFACE roughness, *ZIRCONIUM oxide, *DENTAL ceramics, *SURFACE preparation, *LASERS in dentistry, *DENTAL bonding, *SAND blasting, *ANALYSIS of variance
Abstract

Objective. This study aimed to investigate the effects of different mechanical surface treatments of pre-sintered zirconium oxide (ZrO2) in an attempt to improve its bonding potential. Materials and methods. One hundred and twenty IPS e-max ZirCAD (Ivoclar Vivadent) pre-sintered zirconia blocks (7 mm diameter, 3 mm height) received six different surface treatments ( n = 20): Group C was untreated (control); Group E was Er:YAG laser irradiated; Group N was Nd:YAG laser irradiated; Group SB was sandblasted, Group SN was sandblasted and Nd:YAG laser irradiated; and Group SE was sandblasted and Er:YAG laser irradiated. After the surface treatments, the average surface roughness (Ra, µm) of each specimen was determined with a profilometer, then all the specimens were sintered. The surface roughness values were analysed through one-way ANOVA and Tukey's test. Changes in the morphological characteristics of ZrO2 were examined through scanning electron microscopy (SEM). Results. Sintered sandblasted, Er:YAG laser treatment, sandblasted + Er:YAG laser and sandblasted + Nd:YAG laser irradiation resulted in a rougher surface than the other treatments. Conclusion. Nd:YAG laser irradiation alone was not effective in altering the zirconia surface morphology. [ABSTRACT FROM AUTHOR]

Published
2014
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29. Effects of dentin surface treatments including Er,Cr:YSGG laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin

Author

Alper Kuştarcı, Alper Kapdan, Kürşat Er, Omer Kirmali, [Kirmali, Omer] Akdeniz Univ, Dept Prosthodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kustarci, Alper -- Er, Kursat] Akdeniz Univ, Dept Endodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kapdan, Alper] Cumhuriyet Univ, Dept Restorat Dent, Fac Dent, Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Er, Kursat -- 0000-0002-0667-4909

Subjects
Dental Stress Analysis, Time Factors, Materials science, Surface Properties, Glass fiber, fiber posts, root dentin, Dentistry, Lasers, Solid-State, Dental bonding, Radiation Dosage, Composite Resins, law.invention, YSGG laser [Er,Cr], Random Allocation, stomatognathic system, law, Materials Testing, Dentin, medicine, Humans, Irradiation, Dental Etching, General Dentistry, bond strength, Dental Pulp Cavity, Self-Curing of Dental Resins, Bond strength, business.industry, Dental Bonding, General Medicine, push-out test, Laser, Resin Cements, medicine.anatomical_structure, Microscopy, Electron, Scanning, Methacrylates, Glass, Stress, Mechanical, business, Root Canal Preparation, Post and Core Technique
Abstract

WOS: 000354606800010, PubMed ID: 25330165, Objective. Intra-canal post systems are commonly used to restore root-filled teeth. Bond strengths of the posts can be affected by various surface treatments of the post or the dentin. The aim of this study was to evaluate the effects of dentin surface treatments including erbium-chromium; yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser irradiation with different intensities on the push-out bond strength of the glass fiber posts to root dentin. Materials and methods. Forty single-rooted human maxillary incisors were filled and post spaces were prepared. After these procedures, the specimens were divided randomly into four groups according to the dentin surface treatments, as follows: (i) untreated surface (control), (ii) 1W Er,Cr:YSGG laser application, (iii) 2W Er,Cr:YSGG laser application and (iv) 3W Er,Cr:YSGG laser application. Then the posts were cemented into the root canals using dual-cured resin cement. Bonded specimens were cut into 1-mm-thick slices and push-out tests were performed using a universal testing device. All specimens were loaded until fracture and the failure modes were evaluated with a stereomicroscope at 32x magnification. Representative specimens were analyzed by scanning electron microscopy. Data were analyzed using a one-way ANOVA, Tukey and Wilcoxon tests. Results. The bond strength values ranged from 3.22-4.68 MPa. There were no statistically significant differences among the groups, regardless of the different levels. The coronal and middle levels of the post space had significantly higher bond strength values compared with the apical level (p < 0.05). Conclusion. Er,Cr:YSGG laser irradiation with different intensities did not increase the bond strength of the fiber posts to the root canal dentin walls.

Published
2014

30. Evaluation of Various Pretreatments to Fiber Post on the Push-out Bond Strength of Root Canal Dentin

Author

Özlem Üstün, Omer Kirmali, Alper Kapdan, Alper Kuştarcı, [Kirmali, Omer -- Ustun, Ozlem] Akdeniz Univ, Dept Prosthodont, Fac Dent, Antalya, Turkey -- [Kustarci, Alper] Akdeniz Univ, Dept Endodont, Fac Dent, Antalya, Turkey -- [Kapdan, Alper] Cumhuriyet Univ, Fac Dent, Dept Restorat Dent, Sivas, Turkey, and Kirmali, Omer -- 0000-0002-4313-344X

Subjects
Dental Stress Analysis, Materials science, Agricultural Irrigation, fiber post, Root canal, Lentulo spiral, Smear layer, Dentistry, Dental bonding, In Vitro Techniques, 030207 dermatology & venereal diseases, 03 medical and health sciences, 0302 clinical medicine, Dentin, medicine, Humans, Fiber, Composite material, Dental Restoration, Permanent, General Dentistry, Dental Pulp Cavity, yttrium-aluminum-gamet laser [neodymium], Bond strength, business.industry, Dental Bonding, 030206 dentistry, yttrium-scandium-gallium-garnet laser [Chromium], erbium, medicine.anatomical_structure, resin cement, business, scanning electron microscopy, push-out bond strength, Post and Core Technique
Abstract

WOS: 000405164000025, PubMed ID: 28527844, Introduction: The aim of this in vitro study was to compare the effect of different pretreatments (fiber post) with the laser-activated irrigation (LAI) technique (for removal of the smear layer) on root canal dentin in terms of push-out bond strength (PBS) in a fiber post. Methods: Fifty freshly extracted mandibular single-rooted premolars were prepared, and LAI was applied to all roots (17% EDTA was 5 mL for 120 seconds with an erbium, chromium:yttrium-scandium-galliumgarnet laser [0.50 W, 20 Hz, 25 m1]). In addition, 50 quartz fiber posts were randomly assigned to 5 groups (n = 10) according to the surface treatments as follows: group S (sandblasting), group N1 and group N2 (neodymium:yttrium-aluminum-garnet laser irradiation [2 W, 200 ml, 10 Hz, with pulse durations of 180 or 320 microseconds), group HF (9.7% hydrofluoric acid etched), and group C (control with no treatment). Dual-cure resin cement was adhered onto the fiber posts after they were covered with a silane agent, and then the posts were placed into the canal space using a Lentulo spiral. The PBS test was performed after all specimens were transversally sectioned (root slices of 1-mm thickness). Data were analyzed with 1-way analysis of variance/Tukey post hoc test (alpha = 0.05). Results: The highest PBS value was observed in group S (middle part), and the lowest value was observed in group C (apical part). There were no statistical differences among the groups regardless of the part. Furthermore, when the PBS values of the different parts of dentin were compared within treated groups, significant differences were observed in all groups except group N2 (P < .05). Conclusions: Within the limitations of this study, it can be concluded that the LAI technique when used with 17% EDTA had a significant effect on the amount of smear layer removed from the root canal dentin, which was also detected in the fracture pattern (adhesive failure [resin-post interface]). However, the various treatments of the fiber post did not improve the PBS of the root dentin.

Published
2017

31. Effects of Different Surface Treatments on the Bond Strength of Acrylic Denture Teeth to Polymethylmethacrylate Denture Base Material

Author

AkinHakan, KirmaliOmer, CoskunMehmet Emre, TugutFaik, [Akin, Hakan -- Tugut, Faik -- Coskun, Mehmet Emre] Cumhuriyet Univ, Dept Prosthodont, Fac Dent, TR-58140 Sivas, Turkey -- [Kirmali, Omer] Akdeniz Univ, Fac Dent, Dept Prosthodont, TR-07058 Antalya, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
Dental Stress Analysis, Denture Bases, Materials science, Surface Properties, Acrylic Resins, Biomedical Engineering, Dentistry, Lasers, Solid-State, Methacrylate, Composite Resins, Crosshead, Abrasion (geology), chemistry.chemical_compound, Materials Testing, Polymethyl Methacrylate, Radiology, Nuclear Medicine and imaging, Maxillary central incisor, Methyl methacrylate, Acrylic resin, Dentures, Light-Curing of Dental Adhesives, Dental Debonding, Universal testing machine, business.industry, Bond strength, Dental Bonding, Incisor, chemistry, visual_art, visual_art.visual_art_medium, Methacrylates, business
Abstract

WOS: 000340846900007, PubMed ID: 25102408, Objective: The purpose of this study was to investigate the effects of various surface pretreatments in the ridge lap area of acrylic resin denture teeth on the shear bond strength to heat-polymerized polymethylmethacrylate (PMMA) denture base resin. Background data: Tooth debonding of the denture is a major problem for patients with removable prostheses. Methods: A total of 84 central incisor denture teeth were used in this study. Seven test groups with 12 specimens for each group were prepared as follows: untreated (control, group C), ground, with a tungsten carbide bur (group H), airborne-particle abrasion (group AA), primed with methyl methacrylate (group M), treated with izobutyl methacrylate (group iBMA), Eclipse Bonding Agent applied (group E), and Er:YAG laser irradiated (group L). Test specimens were produced according to the manufacturers' instructions and mounted to a universal testing machine for shear testing with a crosshead speed of 1 mm/min. Data were evaluated by one way variance analysis (ANOVA) and Tukey's test (alpha = 0.05). Results: Similar bond strength values were found between groups L and M, and these were the highest shear bond strengths among the groups. The lowest one was observed in group E. All surface treatments, except group E, exhibited significant difference when compared with group C (p < 0.05). Conclusions: Lasing of the ridge lap area to enhance the bond strength of acrylic resin denture teeth to PMMA denture base resin might be an alternative to wetting with MMA monomer. To overcome tooth debonding, surface treatment of the ridge lap area should be performed as part of denture fabrication.

Published
2014

32. Evaluation of surface roughness and bond strength of quartz fiber posts after various pre-treatments

Author

Bulent Piskin, Cumhur Sipahi, Hakan Akin, Omer Kirmali, Gulsah E Akin, [Akin, Gulsah E.] Cumhuriyet Univ, Fac Dent, Dept Restorat Dent, TR-58140 Sivas, Turkey -- [Akin, Hakan] Cumhuriyet Univ, Fac Dent, Dept Prosthodont, TR-58140 Sivas, Turkey -- [Sipahi, Cumhur -- Piskin, Bulent] Gulhane Mil Med Acad, Dept Prosthodont, Ankara, Turkey -- [Kirmali, Omer] Akdeniz Univ, Fac Dent, Dept Prosthodont, TR-07058 Antalya, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, Piskin, Bulent -- 0000-0002-8992-2313, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
Dental Stress Analysis, Pre treatment, sandblasting, Materials science, Surface Properties, acid-etch, Lasers, Solid-State, Hydrofluoric Acid, Dental Materials, Random Allocation, Acid Etching, Dental, Group (periodic table), Tensile Strength, Materials Testing, Ultimate tensile strength, Aluminum Oxide, silica coating, Surface roughness, Humans, Irradiation, Composite material, General Dentistry, bond strength, Universal testing machine, Quartz fiber, Epoxy Resins, Bond strength, Dental Bonding, quartz fiber post, Quartz, General Medicine, Silicon Dioxide, Resin Cements, laser, Dental Prosthesis Design, Dental Etching, Microscopy, Electron, Scanning, Stress, Mechanical, Post and Core Technique
Abstract

WOS: 000344330400064, PubMed ID: 25139129, Purpose. Debonding at the post-adhesive interface is a major problem for quartz fiber posts. The objective of this study was to evaluate surface roughness and bond strength of quartz fiber posts after various surface treatments. Materials and methods. Sixty-six quartz fiber posts were randomly divided into six experimental groups (n = 11) including group C, untreated (control); group SB, sandblasted; group SC, silica coated; group HF, hydrofluoric acid-etched; group N, Nd:YAG laser irradiated; group E, Er:YAG laser irradiated. Surface roughness of the posts was measured before and after pre-treatment. They were then bonded to resin cement and tensile bond strength was determined in a universal testing machine. Furthermore, two-way ANOVA and post hoc comparison tests (alpha = 0.05) were performed on all data. Results. The highest mean force value was observed in group SB and followed by group E. Tukey's HSD test showed that there was no statistical difference between group SB and group E (p = 0.673). The highest mean roughness value was observed in group SB and a significant difference was found between group SB and all other groups (p < 0.001). This study reveals that sandblasting and Er:YAG laser irradiation provided a significant increase in bond strength between quartz fiber posts and resin cement. Conclusions. Sandblasting or Er:YAG laser-irradiation of the surface of the quartz fiber post before cementation is recommended for increasing retention., Cumhuriyet University Scientific Research Project, This investigation was supported by the Cumhuriyet University Scientific Research Project. This study was presented in a poster at the annual meeting of the 19th Aegean Region Chambers of Dentists International Scientific Congress and Exhibition, 26-28 April, 2012, Fethiye, Turkey.

Published
2014

33. Evaluation of the surface roughness of zirconia ceramics after different surface treatments

Author

Hakan Akin, Alper Kapdan, Omer Kirmali, [Kirmali, Omer] Akdeniz Univ, Fac Dent, Dept Prosthodont, TR-07058 Antalya, Turkey -- [Akin, Hakan] Cumhuriyet Univ, Fac Dent, Dept Prosthodont, Sivas, Turkey -- [Kapdan, Alper] Cumhuriyet Univ, Fac Dent, Dept Restorat Dent, Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
laser treatment, Ceramics, Materials science, Surface Properties, Scanning electron microscope, chemistry.chemical_element, law.invention, law, Surface roughness, Cubic zirconia, Ceramic, Irradiation, Composite material, General Dentistry, Zirconium, Metallurgy, surface treatment, General Medicine, equipment and supplies, Laser, chemistry, visual_art, surface roughness, Microscopy, Electron, Scanning, visual_art.visual_art_medium, Profilometer, Y-TZP zirconia
Abstract

WOS: 000340259700006, PubMed ID: 24255966, Objective. This study aimed to investigate the effects of different mechanical surface treatments of pre-sintered zirconium oxide (ZrO2) in an attempt to improve its bonding potential. Materials and methods. One hundred and twenty IPS e-max ZirCAD (Ivoclar Vivadent) pre-sintered zirconia blocks (7 mm diameter, 3 mm height) received six different surface treatments (n = 20): Group C was untreated (control); Group E was Er: YAG laser irradiated; Group N was Nd: YAG laser irradiated; Group SB was sandblasted, Group SN was sandblasted and Nd:YAG laser irradiated; and Group SE was sandblasted and Er: YAG laser irradiated. After the surface treatments, the average surface roughness (Ra, mu m) of each specimen was determined with a profilometer, then all the specimens were sintered. The surface roughness values were analysed through one-way ANOVA and Tukey's test. Changes in the morphological characteristics of ZrO2 were examined through scanning electron microscopy (SEM). Results. Sintered sandblasted, Er:YAG laser treatment, sandblasted + Er: YAG laser and sandblasted + Nd:YAG laser irradiation resulted in a rougher surface than the other treatments. Conclusion. Nd:YAG laser irradiation alone was not effective in altering the zirconia surface morphology.

Published
2013

34. Shear Bond Strength of Veneering Ceramic to Zirconia Core After Different Surface Treatments

Author

Ali Kemal Ozdemir, Hakan Akin, Omer Kirmali, [Kirmali, Omer] Akdeniz Univ, Fac Dent, Dept Prosthodont, TR-07058 Antalya, Turkey -- [Akin, Hakan -- Ozdemir, Ali Kemal] Cumhuriyet Univ, Fac Dent, Dept Prosthodont, Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
Ceramics, Materials science, Surface Properties, medicine.medical_treatment, Biomedical Engineering, chemistry.chemical_element, Lasers, Solid-State, Neodymium, Dental porcelain, Materials Testing, medicine, Humans, Radiology, Nuclear Medicine and imaging, Cubic zirconia, Irradiation, Ceramic, Low-Level Light Therapy, Composite material, Bond strength, Dental Porcelain, Resin Cements, Dental Veneers, chemistry, visual_art, Microscopy, Electron, Scanning, visual_art.visual_art_medium, Substructure, Veneer, Zirconium, Shear Strength, Dental Alloys
Abstract

WOS: 000319978500005, PubMed ID: 23741995, Objective: The aim of this study was to evaluate the effect of different surface treatments: sandblasting, liners, and different laser irradiations on shear bond strength (SBS) of pre-sintered zirconia to veneer ceramic. Background data: The SBS between veneering porcelain and zirconium oxide (ZrO2) substructure was weak. Various surface treatment methods have been suggested for zirconia to obtain high bond strength to veneering porcelain. There is no study that evaluated the bond strength between veneering porcelain and the different surface treatments on pre-sintered ZrO2 substructure. Methods: Two hundred specimens with 7mm diameter and 3mm height pre-sintered zirconia blocks were fabricated. Specimens were randomly divided into 10 groups (n = 20) according to surface treatments applied. Group C, untreated (Control); Group E, erbium: yttrium-aluminum-garnet (Er:YAG) laser irradiated; Group N, neodymium: yttrium-aluminum-garnet (Nd:YAG) laser irradiated; Group SB, sandblasted; Group L, liner applied; Group NL, Nd:YAG laser irradiated + liner applied; Group EL, Er:YAG laser irradiated + liner applied; Group SN, sandblasted + Nd:YAG laser irradiated; Group SE, sandblasted + Er:YAG laser irradiated; and Group SL, sandblasted + liner applied. The disks were then veneered with veneering porcelain. Before the experiment, specimens were steeped in 37 degrees C distilled water for 24 h. All specimens were thermocycled for 5000 cycles between 5 degrees C and 55 degrees C with a 30 sec dwell time. Shear bond strength test was performed at acrosshead speed of 1 mm/min. The fractured specimens were examined under a stereomicroscope to evaluate the fracture pattern. Results: Surface treatments significantly changing the topography of the yttrium-stabilized tetragonal zirconia (Y-TZP) ceramic according to scanning electron microscopic (SEM) images. The highest mean bond strength value was obtained in Group SE, and the lowest bond strength value was observed in NL group. Bond strength values of the other groups were similar to each other. Conclusions: This study shows that sandblasting + Er:YAG, sandblasting, Er:YAG + liner, sandblasting + Nd:YAG, and Er:YAG laser treatment on pre-sintered ZrO2 substructure increased the bond strength to veneering porcelain, compared with other surface treatments. After different surface treatments, there was no difference in surface roughness of pre-sintered zirconia to compare after sintering; sintering enhanced the bond strength within the limitations of present study.

Published
2013

35. Tensile bond strength of silicone-based soft denture liner to two chemically different denture base resins after various surface treatments

Author

Umit Guney, Faik Tugut, Omer Kirmali, Türker Akar, Hakan Akin, [Akin, Hakan -- Tugut, Faik -- Guney, Umit -- Kirmali, Omer -- Akar, Turker] Cumhuriyet Univ, Fac Dent, Dept Prosthodont, TR-58140 Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
Denture Bases, Materials science, Surface Properties, Polyurethanes, Lasers, Solid-State, Dermatology, Denture Liners, Composite Resins, Eclipse, Crosshead, chemistry.chemical_compound, Silicone, Tensile Strength, UDMA, Materials Testing, Ultimate tensile strength, Methylmethacrylates, Polymethyl Methacrylate, Dimethylpolysiloxanes, Composite material, Urethane dimethacrylate, YAG laser [Er], Analysis of Variance, Tensile bond strength, Bond strength, Dental Bonding, PMMA, Soft liner, chemistry, Silicone Elastomers, Methacrylates, Denture base, Surgery, Er:YAG laser
Abstract

WOS: 000313096400017, PubMed ID: 22447403, This study evaluated the effect of various surface treatments on the tensile bond strength of a silicone-based soft denture liner to two chemically different denture base resins, heat-cured polymethyl methacrylate (PMMA), and light-activated urethane dimethacrylate or Eclipse denture base resin. PMMA test specimens were fabricated and relined with a silicone-based soft denture liner (group AC). Eclipse test specimens were prepared according to the manufacturer's recommendation. Before they were relined with a silicone-based soft denture liner, each received one of three surface treatments: untreated (control, group EC), Eclipse bonding agent applied (group EB), and laser-irradiated (group EL). Tensile bond strength tests (crosshead speed = 5 mm/min) were performed for all specimens, and the results were analyzed using the analysis of variance followed by Tukey's test (p = 0.05). Eclipse denture base and PMMA resins presented similar bond strengths to the silicone-based soft denture liner. The highest mean force was observed in group EL specimens, and the tensile bond strengths in group EL were significantly different (p < 0.05) from those in the other groups.

Published
2012

36. Shear Bond Strength of Resin Cement to Zirconia Ceramic After Aluminum Oxide Sandblasting and Various Laser Treatments

Author

Ender Kazazoglu, Omer Kirmali, Ali Kemal Ozdemir, Zeynep Özkurt, Hakan Akin, Akin, H., Ozkurt, Z., Kirmali, O., Kazazoglu, E., Ozdemir, A.K., Yeditepe Üniversitesi, [Akin, Hakan -- Kirmali, Omer -- Ozdemir, Ali Kemal] Cumhuriyet Univ, Dept Prosthodont, Fac Dent, Sivas, Turkey -- [Ozkurt, Zeynep -- Kazazoglu, Ender] Yeditepe Univ, Dept Prosthodont, Fac Dent, Istanbul, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Akin, Hakan -- 0000-0002-4770-4297

Subjects
Molar, Materials science, Surface Properties, Biomedical Engineering, Lasers, Solid-State, Dental bonding, In Vitro Techniques, Materials Testing, Aluminum Oxide, Dentin, medicine, Shear strength, Humans, Radiology, Nuclear Medicine and imaging, Cubic zirconia, Composite material, Acrylic resin, Bond strength, Dental Bonding, Resin Cements, medicine.anatomical_structure, Distilled water, visual_art, Dental Etching, Lasers, Gas, visual_art.visual_art_medium, Molar, Third, Zirconium, Shear Strength
Abstract

WOS: 000298152400006, PubMed ID: 22150095, Objective:The aim of this study was to evaluate the effect of different surface treatments; sandblasting, Er:YAG, Nd:YAG, or CO2 laser irradiation on the shear bond strength (SBS) of zirconia ceramic to dentin. Background data:Zirconia is not properly luted with resin cements. Various surface treatment methods have been suggested for zirconia to obtain high bond strength to resin cements. There is no study that compared the effect of different laser types (Er:YAG, Nd:YAG, CO2) with sandblasting on SBS between zirconia and dentin. Methods:One hundred and twenty human maxillary third molar teeth were sectioned 3mm below the occlusal surfaces, embedded in a metal ring with autopolymerizing acrylic resin, and stored in distilled water at 37(0)C. One hundred and twenty disc-shaped zirconia specimens were fabricated (6mm in diameter and 4mm in thickness), and randomly assigned to six groups (n = 20):Group 1, untreated (control); Group 2, sandblasted; Group 3, Er:YAG laser irradiated; Group 4, Nd:YAG laser irradiated with contact; Group 5, Nd:YAG laser irradiated with non-contact; Group 6, CO2 laser irradiated. They were cemented onto the dentin with dual-cured resin cement (Variolink (R)). After they were stored in distilled water at 37(0)C for 24 h, the SBS test was performed at a crosshead speed of 1mm/min. The fractured specimens were examined under a stereomicroscope to evaluate the fracture pattern. Results:Results of this study did not show statistically significant differences between Groups 1 and 2, or among Groups 3, 4 and 5. The lowest SBS was recorded in Group 6 (CO2 laser), and the highest SBS was recorded in Group 4 (Nd:YAG laser with contact), followed by Group 3 (Er:YAG laser). The adhesive failure mode was predominantly observed in Groups 2, 3, 5, and 6. Group 1 showed 45% mixed failure and Group 4 showed 50% mixed failure. Conclusions:This study shows that Er:YAG and Nd:YAG laser treatment increased the bond strength of zirconia compared to sandbasting and CO2 laser treatment.

Published
2011

37. Efficacy of surface roughness and bond strength of Y-TZP zirconia after various pre-treatments

Author

Omer Kirmali, Kürşat Er, Alper Kapdan, Alper Kuştarcı, [Kirmali, Omer] Akdeniz Univ, Dept Prosthodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kustarci, Alper -- Er, Kursat] Akdeniz Univ, Dept Endodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kapdan, Alper] Cumhuriyet Univ, Dept Restorat Dent, Fac Dent, Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, and Er, Kursat -- 0000-0002-0667-4909

Subjects
Ceramics, Surface Properties, medicine.medical_treatment, Biomedical Engineering, Dental bonding, Lasers, Solid-State, Microscopy, Atomic Force, Materials Testing, Shear strength, Surface roughness, medicine, Radiology, Nuclear Medicine and imaging, Cubic zirconia, Yttrium, Ceramic, Composite material, Bond strength, Dental Bonding, Resin Cements, Air Abrasion, Dental, visual_art, visual_art.visual_art_medium, Microscopy, Electron, Scanning, Veneer, Profilometer, Zirconium, Shear Strength
Abstract

WOS: 000348177500004, PubMed ID: 25555090, Objective: The aim of this study was to evaluate surface roughness (SR) and the influence of various surface treatments (STs) on the veneer ceramic shear bond strength (SBS) to Y-TZP zirconia. Background data: STs can improve the bonding properties of zirconia ceramics. However, little is known about the effect of Er,Cr:YSGG laser irradiation on SBS between zirconia and veneer ceramic/resin cement. Methods: Eighty ceramic discs of yttria-tetragonal zirconia polycrystals (Y-TZP) were prepared, and specimens were divided into eight groups (n=10): untreated (control), air abrasion, and Er,Cr:YSGG laser irradiation with different energy intensities (1-6 W). Average SR of each specimen was determined with a profilometer, and a veneering ceramic recommended for zirconia was fired into cylinder-shaped Y-TZP specimens. SBS test was performed for each specimen at a crosshead speed of 1 mm/min, and the average means of SBS and SR were calculated. Fracture modes and the surface topography were evaluated with various microscopes after STs. Data were analyzed by using one way analysis of variance (ANOVA) and Tukey honest significant difference (HSD) tests. Results: The highest mean force value was observed in the air abrasion group, and followed by 6 and 5 W laser irradiations, respectively. The difference between control and air abrasion groups was found to be statistically significant (p

Published
2015

38. Shear bond strength of a self‑etched resin cement to an indirect composite: Effect of different surface treatments

Author

Alper Kapdan, Osman Tolga Harorli, Çağatay Barutçugil, Omer Kirmali, [Harorli, O. T. -- Barutcugil, C.] Akdeniz Univ, Fac Dent, Dept Restorat Dent, TR-07058 Antalya, Turkey -- [Kirmali, O.] Akdeniz Univ, Fac Dent, Dept Prosthodont, TR-07058 Antalya, Turkey -- [Kapdan, A.] Cumhuriyet Univ, Fac Dent, Dept Restorat Dent, Sivas, Turkey, Kirmali, Omer -- 0000-0002-4313-344X, Barutcugil, Cagatay -- 0000-0002-5321-2299, and harorli, osman tolga -- 0000-0001-6828-5063

Subjects
Surface Properties, Scanning electron microscope, Composite number, resin cements, chemistry.chemical_element, Composite resins, Dental bonding, Composite Resins, chemistry.chemical_compound, Chromium, Shear strength, Medicine, Composite material, Phosphoric acid, Cement, Analysis of Variance, Composite resins, dental bonding, resin cements, surface properties, Bond strength, business.industry, dental bonding, Dental Bonding, technology, industry, and agriculture, General Medicine, Resin Cements, chemistry, surface properties, Shear Strength, business
Abstract

WOS: 000351753800019, PubMed ID: 25772927, Objectives: The aim of this study was to compare the shear bond strength of resin cement (Rely X-U200) bonded to differently conditioned indirect composite samples. Materials and Methods: Sixty-six composite resin specimens (5 mm in diameter and 3 mm in thickness) were prepared with an indirect composite resin (Grandia) and randomly divided into six groups. Surfaces of the samples were treated with one of the following treatments; %37 phosphoric acid etching, sandblasting, 1,5 W, 2 W and 3 W erbium, chromium: Yttrium-scandium-gallium-garnet laser application. An untreated group was used as a control. In each group surface of the sample was analyzed with scanning electron microscopy. The remaining samples (n = 60) were built up with a self-adhesive resin cement (Rely X-U200) 3 mm in diameter and 2 mm height. After 24 h water storage at 37 degrees C, the prepared specimens were submitted to shear bond strength test. One-way analysis of variance was used to analyze the bond strength values of different groups. Results: Highest shear bond strength values were observed in sandblasting group however there were not statistical difference among the tested surface treatment methods. conclusion: In Shear bond strength of resin, cement was independent of the surface conditioning methods applied on tested indirect resin composite.

Published
2015

39. Surface roughness and morphologic changes of zirconia: Effect of different surface treatment

Author

Kirmali, O, Kustarci, A, Kapdan, A, [Kirmali, O.] Akdeniz Univ, Dept Prosthodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kustarci, A.] Akdeniz Univ, Dept Endodont, Fac Dent, TR-07058 Antalya, Turkey -- [Kapdan, A.] Cumhuriyet Univ, Fac Dent, Dept Restorat Dent, Sivas, Turkey, and Kirmali, Omer -- 0000-0002-4313-344X

Subjects
gallium, surface roughness, Yttrium [chromium], scandium, scanning electron microscopic, Erbium, chromium: Yttrium, scandium, gallium, garnet laser, scanning electron microscopic, surface roughness, Y.TZP zirconia, garnet laser, Erbium, Y-TZP zirconia
Abstract

WOS: 000347059000023, PubMed ID: 25511357, Purpose: The purpose of this study was to investigate the surface roughness and morphologic changes of pre-sintered ZrO2 after sandblasting and erbium, chromium: Yttrium, scandium, gallium, garnet (Er, Cr: YSGG) laser application of different intensities. Material and Methods: Eighty pre-sintered ZrO2 cylinders (7 mm diameter, 3 mm height) were prepared and divided into eight groups. Specimens in the control group were not treated. The following treatments were applied: Er, Cr: YSGG laser irradiation with different energy intensities (1-6 W at 20 Hz, with air-water cooling proportion of 65%/55%) and air abrasion with Al2O3 particles (120 mu m). Then, all the specimens were sintered. The average surface roughness of each specimen was determined with a profilometer, and the morphology changes of a specimen from each group were evaluated with scanning electron microscope (SEM) analyses. The surface roughness data were analyzed through one-way analysis of variance and Tukey's honestly significant difference test (P < 0.05). Results: There were significant differences between 2 and 6 W irradiations and control group. The highest surface roughness value was obtained with 6 W irradiation (8.14+/-1.26 Ra), followed by the 5 W (7.60+/-1.12 Ra), 4 W (7.50+/-0.90 Ra), 3 W (5.86+/-1.03 Ra), 2 W (4.54+/-0.53 Ra) and sandblasting group (2.18+/-0.92 Ra). 1 W laser irradiation (0.80+/-0.06 Ra) presented Ra values similar to the control group (0.77+/-0.03). Conclusion: The result of the statistical analyses and SEM images showed that Er, Cr: YSGG laser irradiation with 4-6 W/20 Hz presented significantly effect in surface roughness changes of zirconia than other surface treatments.

Published
2015

40. Resin cement to indirect composite resin bonding: effect of various surface treatments.

Author

Kirmali O, Barutcugil C, Harorli O, Kapdan A, and Er K

Subjects
Biostatistics, Humans, Chemical Phenomena, Composite Resins chemistry, Dental Etching methods, Resin Cements chemistry, Surface Properties
Abstract

Debonding at the composite-adhesive interface is a major problem for indirect composite restorations. The aim of this study was to evaluate the bond strength (BS) of an indirect composite resin after various surface treatments (air-abrasion with Al2O3, phosphoric acid-etchig and different applications of NdYAG laser irradiations). Fifty composite disks were subjected to secondary curing to complete polymerization and randomly divided into five experimental groups (n = 10) including Group 1, untreated (control); Group 2, phosphoric acid-etched; Group 3, air-abrasion with Al2 O3 ; Group 4, Nd:YAG laser irradiated with non-contact and Group 5, Nd:YAG laser irradiated with contact. They were then bonded to resin cement and shear BS was determined in a universal testing device at a crosshead speed of 1 mm/min. One way analysis of variance (ANOVA) and Tukey post-hoc tests were used to analyze the BS values. The highest BS value was observed in Group 4 and followed by Group 3. Tukey test showed that there was no statistical difference between Group1, 2 and 5. Furthermore, differences in BSs between Group 4 and the other groups except Group 3 were significant (p < 0.05) and also there were significant differences in BSs between Group 3 to 1 and Group 3 to 2 (p < 0.05). This study reveals that air-abrasion with Al2 O3 and Nd:YAG laser irradiation with non-contact provided a significant increase in BS between indirect composite and resin cement., (© Wiley Periodicals, Inc.)

Published
2015
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