Search

Aim: This study aimed to investigate the effects of diabetes care on periodontal inflammation., Materials and Methods: This prospective cohort study included 51 Japanese patients with type 2 diabetes who underwent intensive diabetes care including educational hospitalization and regular outpatient treatment for 6 months. Dental prophylaxis without subgingival scaling was provided three times during the observational period. Associations between changes in periodontal parameters and glycaemic control levels were evaluated using multiple regression analysis., Results: Overall, 33 participants (mean age: 58.7 ± 12.9) were followed up for 6 months. At baseline examination, 82% were diagnosed with Stage III or IV periodontitis. Haemoglobin A1c (HbA1c) level changed from 9.6 ± 1.8% at baseline to 7.4 ± 1.3% at 6 months. The ratio of probing pocket depth (PPD) ≥4 mm, bleeding on probing (BOP), full-mouth plaque control record (PCR), periodontal epithelial surface area (PESA) and periodontal inflamed surface area (PISA) also significantly improved. The reduction in PPD and PESA was significantly associated with changes in both HbA1c and fasting plasma glucose (FPG) levels, and the reduction in PISA was significantly associated with an improvement in FPG after adjusting for smoking, change in body mass index and full-mouth PCR., Conclusions: This is the first study to report a significant improvement in PPD and BOP after intensive diabetes care and dental prophylaxis without subgingival scaling., Clinical Trial Registration Number: UMIN000040218., (© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

BackgroundTo compare fatigue, comfort, and muscle work associated with the use of two periodontal curettes during scaling: one with a novel adaptive design, the other with a conventional non-adaptive design.MethodsTwelve hygienists scaled a typodont using two Universal Barnhart 5/6 curettes: (1) a prototype featuring an adaptive silicone-covered handle (Curette A), and (2) a stainless-steel curette (Curette B). Surface Electromyography (sEMG) traced muscle work. Hand positions, fatigue, comfort, pinch, and grasp strength were recorded. Paired t-tests and a repeated measures ANOVA with covariates were tested for differences. The significance level was set at p < 0.05.ResultsCurette A performed significantly better in all categories. Pinch and grasp strength and fatigue were significantly reduced post-instrumentation for Curette B. Curette A required significantly less (i) total muscle work and (ii) work in individual muscles. Comfort, correct grasp, and blade adaptation were significantly better using Curette A.ConclusionsA curette featuring a novel adaptive handle design demonstrated significantly improved ergonomic performance. Additional clinical studies are needed to solidify our understanding of the potential short- and long-term benefits of the novel curette handle design.Practical implicationsA novel adaptive curette handle design that enables the clinician to adapt the instrument across the index finger may reduce musculoskeletal burden and fatigue, as well as improve comfort during periodontal instrumentation.

To evaluate the effectiveness of photobiomodulation therapy (PBMT) in reducing gingivitis following professional dental prophylaxis in dogs in a prospective, randomly controlled, double-blind study. The study included 47 dogs (male n = 23, female n = 24), with a mean age of 6.5 ± 2.6 years and a bodyweight of 28.9 ± 5.3 kg. Breeds included: Belgian Malinois Shepherd Dogs (n = 23), German Shepherd Dogs (n = 14), Labrador Retriever (n = 4), and Dutch Shepherd Dogs (n = 3). The left side of the mouth was treated by performing dental prophylaxis (control group). The right side received dental prophylaxis and a single session of PBMT using a Class IV therapeutic laser (treatment group). Each side was graded individually for periodontal disease (PD), gingivitis, and calculus. Follow-up observations were conducted on days 1, 3, 8, and 15 post-treatment. Results were compared using a Mann-Whitney Test. Multiple regression was run to predict PD, gingivitis, and calculus scores using age, sex, and breed. A p <.05 was considered significant. The PBMT group (PG) showed significantly lower gingivitis scores from day 1 to 15 post-treatment. PD had an increasing prevalence with age. Age and breed contributed to the prediction of PD, gingivitis, and calculus grading. This study showed that PBMT significantly reduced the grade of gingivitis following dental prophylaxis, and may be a useful adjuvant procedure following dental prophylaxis. [ABSTRACT FROM AUTHOR]

The surface of dental materials is exposed to various prophylaxis protocols during routine dental care. However, the impact of these protocols on the functional properties of the material's surface remains unclear. This study investigates the influence of different dental prophylaxis protocols on the surface properties and their effect on the mechanical performance of CAD-CAM restorative materials. Discs (Ø = 15 mm, thickness = 1.2 mm) were fabricated from resin composite (RC, Tetric CAD), leucite-reinforced (LEU, IPS Empress CAD), lithium disilicate (LD, IPS e.max CAD), and zirconia ceramics (ZIR, IPS e.max ZirCAD MT). The materials were subjected to six prophylactic treatments: untreated (CTRL), prophylactic paste fine (PPF), prophylactic paste coarse (PPC), pumice stone (PS), air abrasion with sodium bicarbonate jet (BJ), and ultrasonic scaling (US). Biaxial flexural fatigue tests, along with fractographic, roughness, and topographic analyses, were conducted. No significant changes in fatigue strength were observed for RC, LD, and ZIR under any prophylaxis protocols. However, LEU subjected to BJ treatment exhibited significantly reduced fatigue strength (p = 0.004), with a 22% strength reduction compared to the monotonic test and substantial surface alterations. Surface roughness analyses revealed increased roughness for RC treated with PPF, PPC, and PS compared to CTRL (p < 0.05), while LD exhibited decreased roughness following PPF, PS, and US treatments (p < 0.05). In ZIR, only the BJ protocol increased roughness (p = 0.001). In conclusion, dental prophylaxis protocols do not significantly affect the mechanical strength of RC, LD, and ZIR materials, thus allowing any protocol to be used for these materials. However, for LEU ceramics, the BJ protocol should be avoided due to its effect of reducing fatigue strength and damaging the surface. [ABSTRACT FROM AUTHOR]

This study aimed to evaluate the effectiveness of a patient-centered standardized prophylaxis process in improving patient satisfaction and intentions to return to dental clinics. Conducted in a first-tier city in China from 9 June to 26 July 2023, the cross-sectional survey included 826 patients from 38 dental clinics. Among the respondents, 438 received standardized prophylaxis services, while 388 were in the non-standardized group, with a mean age of 38.2 ± 12.1 years and 50.24% male participation. The results revealed that patients in the standardized prophylaxis group reported significantly higher satisfaction scores (average 4.74 vs. 3.34, p < 0.0001) and greater intentions to return (average 4.77 vs. 4.10, p < 0.0001) compared to those receiving non-standardized care. The ordinal logistic regression analysis identified patient satisfaction as a strong predictor of return intention, with an odds ratio of 24.487, while the standardized service group had an odds ratio of 16.063, indicating a substantial positive effect on satisfaction. Age was also found to significantly affect return intention, reflected in an odds ratio of 0.969. Furthermore, the model showed strong predictive accuracy, which was supported by a Somers' D value of 0.806. Additionally, an impressive 89.9% of the observations were correctly ordered, which strengthens the reliability of the findings. These outcomes highlight the significant contribution of patient-centered, standardized practices to the satisfaction of the patients as well as the development of their desire to return for follow-up care. However, the findings should be interpreted with caution due to the study's cross-sectional nature, which limits causal inferences, and the specific demographic characteristics that may affect the general applicability of the results. Further research is needed to explore these dynamics across diverse populations and settings. [ABSTRACT FROM AUTHOR]

In dentistry, fluoride compounds play a very important role in the development of teeth hard tissue. They have been modifying the development of the carious process for many years in accordance with the principles of minimally invasive therapy. Studies have confirmed their effectiveness in the prevention and treatment of carious lesions and erosion of deciduous and permanent teeth, as well as in the dentin hypersensitivity treatment. Typically, each varnish consists of 3 basic components, i.e., a resin usually in the form of mastic, shellac and/or rosin, an alcohol-based organic solvent (usually ethanol) and active agents. In the first-generation varnishes, the active agent is fluorine compounds, most often in the form of 5% NaF, while in second-generation varnishes, the composition is further enriched with calcium and phosphorus compounds in the form of CPP-ACP/CPP-ACPF, ACP, TCP, fTCP, CSPS, TMP, CXP, or CaGP. This influences the bioavailability of fluoride in the oral environment by increasing both its release from the product and its subsequent accumulation in enamel and plaque, promotes more efficient closure of dentinal tubules, and facilitates pH buffering in the oral cavity.

Total joint arthroplasty frequently is performed in the United States to treat degenerative hip and knee arthritis. Despite the routine nature of this procedure, recommendations about dental prophylaxis in patients with prosthetic joints have varied considerably over the past decade. In 2016, the American Academy of Orthopaedic Surgeons (AAOS) published appropriate use criteria for dental prophylaxis in patients with orthopedic implants. Despite these recommendations, discrepancies in prescribing practices persist, and controversy surrounding this topic remains prevalent in the medical literature. This article reviews the AAOS appropriate use criteria and discusses the ongoing controversy about the use of dental prophylaxis in patients with orthopedic implants.

In the context of optimizing dental care for patients who are elderly, the purpose of this in vitro study was to evaluate the surface gloss (with a micro-area gloss meter) of, surface roughness (with a compact surface roughness measuring instrument) of, and color change (with a dental colorimeter) in two commercially available injectable resin-based composites (Estelite Universal Flow (EUF) and Beautifil Flow Plus F00 (BFP)) as well as two glass–ionomer cements (GC Fuji II LC CAPSULE (FLC) and GC Fuji IX GP EXTRA CAPSULE (FGP)), before and after dental prophylaxis. After 24 h, the surfaces of each specimen were polished at 2500 rpm with a prophy brush (Mersage Brush, Shofu) and one-step prophylaxis paste (Prophy Paste Pro, Directa): under 100 or 300 gf load, and for 10 or 30 s, 4× cycles of cleaning. After mechanical cleaning, conditions were found for a significant reduction in the gloss level (EUF, BFP, or FLC; p < 0.05) and a significant increase in surface roughness (BFP; 300 gf load, 10 s × four cycles of cleaning). Overall, the longer time or higher prophylaxis load tended to decrease the surface gloss. However, the observed change in surface roughness varied between the restorative materials. There was no color change post-prophylaxis.

Background The growing incidence of caries at all ages groups, justifies the need of constant search for effective methods of preventing, also in the context of the assessment of the impact of occupational agent. The research hypothesis assumed that due to the specificity of the profession, students of the gastronomic school have forced, additional contact with food. Thus it might be difficult for them students to maintain proper oral hygiene and, consequently, increase the incidence of tooth decay. Material and Methods The study group comprised 109 men: 55 students of a gastronomic technical school (GA) and for comparison 54 students of an electrical and IT technical school (E-I), whose vocational education was completely unrelated to food processing. The study was performed at 2 stages (at the beginning and after 3 years of practical vocational training) and comprised of 2 parts: a dental examination and a questionnaire examination (assessment of individual oral hygiene, preferred food products and sources of knowledge about nutrition). Results After 3 years of observation, a higher, statistically significant, increase in the number of people with caries (P > 0) was observed in the group of students from the E-I school. The analysis of the sources of knowledge on healthy eating and oral hygiene showed that after 3 years of practical vocational training, the main source of knowledge for GA students was school and the Internet, for E-I students the internet and the family. Conclusions The smaller increase in the incidence of tooth decay in the group of GA might probably be associated with the theoretical and practical teaching of food and nutrition in the school. Therefore, the methods of conducting pro-health education on oral hygiene in vocational schools should be improved and the standards of medical conduct during obligatory preventive examinations in every student starting their practical vocational training should be extended. Med Pr. 2022;73(3):219–27

Infection management in solid organ transplantation poses unique challenges, with a diverse array of potential pathogens and associated antimicrobial therapies. With limited high-quality randomized clinical trials to direct optimal care, therapeutic "myths" may propagate and contribute to suboptimal or excessive antimicrobial use. We discuss 6 therapeutic myths with particular relevance to solid organ transplantation and provide recommendations for infectious diseases clinicians involved in the care of this high-risk population. [ABSTRACT FROM AUTHOR]

Introduction: Proper tooth brushing is a complicated process for children. Therefore, the aim of this study was to investigate the effect of differential learning to improve tooth brushing in children. Methods: In this prospective, controlled, single-blinded, randomized clinical trial, 58 children between 3 and 8 years of age (mean: 5.7 ± 1.5 years; 29 female) were randomly assigned to test or control group through the child's self-drawing of an unlabeled envelope from a box. All children received oral hygiene instructions and information in these sealed envelopes and were asked to follow the corresponding instructions at home for 28 days. Children in the test group received instructions with exercises using the differential learning method, whereas the children in the control group received the usual tooth brushing instructions. Results: At baseline and planned follow-ups after 4 and 12 weeks, plaque and gingival indices (QHI, PBI) were recorded in both groups by 2 calibrated and blinded investigators. At baseline, there were no significant differences between the test and control groups regarding plaque and gingival indices (QHI: 4.1 ± 0.5 vs. 4.1 ± 0.4; p = 0.7; PBI: 0.6 ± 0.3 vs. 0.6 ± 0.3; p = 0.7). At the 1st and 2nd follow-up, both groups showed improved oral health indices, but there was an overall better improvement in the test group. While the difference in gingival indices was statistically significant in the 1st recall (PBI/test: 0.1 ± 0.2 vs. control: 0.3 ± 0.2; p < 0.001), the difference in plaque indices was not (QHI/test: 2.1 ± 0.9; control: 2.6 ± 0.9; p = 0.07). At the 2nd recall (mean week = 19.5 weeks), the test group showed statistically significant and clinically relevant better oral health indices than the control group (2nd recall, QHI/test: 2.1 ± 0.9 vs. control: 3.2 ± 1; p < 0.001; PBI/test: 0.1 ± 0.2 vs. control: 0.5 ± 0.2; p < 0.001). Conclusion: In conclusion, differential learning leads to oral hygiene improvement in children with high caries risk and initially poor oral hygiene, which was superior to the conventional learning method through repetition in the medium term. [ABSTRACT FROM AUTHOR]

Background: To compare fatigue, comfort, and muscle work associated with the use of two periodontal curettes during scaling: one with a novel adaptive design, the other with a conventional non-adaptive design. Methods: Twelve hygienists scaled a typodont using two Universal Barnhart 5/6 curettes: (1) a prototype featuring an adaptive silicone-covered handle (Curette A), and (2) a stainless-steel curette (Curette B). Surface Electromyography (sEMG) traced muscle work. Hand positions, fatigue, comfort, pinch, and grasp strength were recorded. Paired t-tests and a repeated measures ANOVA with covariates were tested for differences. The significance level was set at p < 0.05. Results: Curette A performed significantly better in all categories. Pinch and grasp strength and fatigue were significantly reduced post-instrumentation for Curette B. Curette A required significantly less (i) total muscle work and (ii) work in individual muscles. Comfort, correct grasp, and blade adaptation were significantly better using Curette A. Conclusions: A curette featuring a novel adaptive handle design demonstrated significantly improved ergonomic performance. Additional clinical studies are needed to solidify our understanding of the potential short- and long-term benefits of the novel curette handle design. Practical Implications: A novel adaptive curette handle design that enables the clinician to adapt the instrument across the index finger may reduce musculoskeletal burden and fatigue, as well as improve comfort during periodontal instrumentation.

A 31-year-old man presented with gingival mass-like lesions. The patient reported occasional bleeding from lesions; otherwise, the lesions were asymptomatic. Intraoral examination revealed multiple interdental red/purple soft, sessile, nodular lesions involving both the maxillary and mandibular buccal and lingual gingivae, with poor oral hygiene. After performing incisional biopsy, the patient was diagnosed with pyogenic granuloma. Subsequently, the patient underwent cleaning of his teeth and within only 3 days of dental cleaning, the patient reported rapid regression of all his lesions. [ABSTRACT FROM AUTHOR]

In the context of optimizing dental care for patients who are elderly, the purpose of this in vitro study was to evaluate the surface gloss (with a micro-area gloss meter) of, surface roughness (with a compact surface roughness measuring instrument) of, and color change (with a dental colorimeter) in two commercially available injectable resin-based composites (Estelite Universal Flow (EUF) and Beautifil Flow Plus F00 (BFP)) as well as two glass–ionomer cements (GC Fuji II LC CAPSULE (FLC) and GC Fuji IX GP EXTRA CAPSULE (FGP)), before and after dental prophylaxis. After 24 h, the surfaces of each specimen were polished at 2500 rpm with a prophy brush (Mersage Brush, Shofu) and one-step prophylaxis paste (Prophy Paste Pro, Directa): under 100 or 300 gf load, and for 10 or 30 s, 4× cycles of cleaning. After mechanical cleaning, conditions were found for a significant reduction in the gloss level (EUF, BFP, or FLC; p < 0.05) and a significant increase in surface roughness (BFP; 300 gf load, 10 s × four cycles of cleaning). Overall, the longer time or higher prophylaxis load tended to decrease the surface gloss. However, the observed change in surface roughness varied between the restorative materials. There was no color change post-prophylaxis. [ABSTRACT FROM AUTHOR]

This case report describes the presentation and management of a 12-year-old female patient with a tissue mass and spacing between her upper front teeth. Clinical examination revealed a reddish pink, lobulated tissue mass measuring approximately 1.5 cm × 2 cm, extending from the upper labial frenum to the incisive papilla and involving the interdental gingiva of the two central incisors. The mass was moderately firm, pedunculated, and prone to bleeding. The patient had poor oral hygiene, exacerbating the condition. Radiographic evaluation ruled out underlying bony lesions, leading to a provisional diagnosis of pyogenic granuloma with differential diagnoses of gingival fibroma or traumatic fibroma. The treatment plan involved excision of the gingival overgrowth and frenectomy. Following routine oral prophylaxis, the surgical procedure was performed, with the excised tissue sent for histopathological evaluation, confirming the diagnosis as pyogenic granuloma. Postoperative care was provided, and the patient was advised against active orthodontic treatment. Regular follow-up appointments were scheduled to monitor healing and spontaneous space closure. This case report underscores the significance of considering both the aberrant labial frenum and the gingival overgrowth in treatment planning and highlights the need for meticulous follow-up care. [ABSTRACT FROM AUTHOR]

Objective: To evaluate dental prophylaxis influence in tooth color assessment with the use of different methods. Materials and methods: Volunteers were consecutively recruited and screened according to appropriate inclusion/exclusion criteria. Each participant's upper right central incisive and canine color was measured before and after dental prophylaxis with a one‐week interval. Tooth color assessment was performed by calibrated operators and the patient using a VITA Classical shade guide and by spectrophotometric methods with a proper device (SpectroShade). Color was reported as mean with SD of Commission Internationale De l'Eclairage (CIE) L*a*b* values, ΔEab and ΔE00. One‐way analysis of variance and Tukey post hoc were performed to assess differences between methods and paired t test for assessing differences in tooth color coordinates after dental prophylaxis. Values of P <.05 were taken as significant. Results: Fifty patients were included. Self‐assessed dental prophylaxis effects equated to a significantly different mean ΔE00 value of 2.3 ± 1.7 (P <.01), when compared to the calibrated operator reported 0.8 ± 1.1 and the spectrophotometer 1.0 ± 0.5. Half of volunteer's ΔE00 values surpassed the acceptability threshold, when compared to 28% from investigator and 10% from spectrophotometer. Conclusion: Performing a dental prophylaxis did have an influence in tooth color perception with a higher self‐perceived effect in the patient assessment. Clinical significance: The results of this study suggest that performing professional dental prophylaxis presented a perceived effect in tooth color regardless of the method used being that patients precepted whiter and less yellowish teeth. Since extrinsic stain is considered as one of the factors that could influence tooth color assessment, performing professional dental prophylaxis prior to composite or ceramic color selection in anterior teeth restorations could consequently increase treatment predictability. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to compare the clinical outcomes in dental prophylaxis between rubber cup polishing and an air polishing system using erythritol powder, with or without prior dental plaque disclosure. Method and materials: In this single-blind, randomized, controlled, split-mouth clinical trial, healthy participants with full-mouth plaque score ≥ 60% were recruited. Quadrants in each participant were randomly assigned to four treatment groups: air polishing with prior plaque disclosure; air polishing without plaque disclosure; rubber cup polishing with prior plaque disclosure; or rubber cup polishing without plaque disclosure. Plaque scores and treatment time for each quadrant were recorded. Posttreatment satisfaction questionnaires for both the participants and operators were also completed. Results: In total, 88 participants consisting of 42 men and 46 women (mean age 23.1 ± 2.0 years) were recruited. Air polishing with prior plaque disclosure had significantly lower posttreatment marginal mean plaque score (21.7 ± 17.5%) compared to air polishing (33.5 ± 23.4%) or rubber cup polishing (34.5 ± 19.7%) without prior plaque disclosure (P < .001). Marginal mean treatment time for air polishing (325 seconds; SE = 10 seconds) was significantly shorter compared to rubber cup polishing (407 seconds; SE = 15 seconds) (P < .001). Both the participants and operators preferred air polishing over rubber cup polishing (P < .001). Conclusion: Prior plaque disclosure enhanced the effectiveness of plaque removal. Air polishing exhibited better treatment efficiency than rubber cup polishing and was the patients' and clinicians' preferred treatment modality. [ABSTRACT FROM AUTHOR]

Objectives: People with severe intellectual or multiple disabilities (PIMD) have been receiving dental care in a specialized unit offering special care dentistry. For most of these adult patients, the initial consultation is complaint driven. In addition, the limited ability to cooperate due to their disabilities often means that dental treatment for these patients is usually carried out under general anesthesia (GA). Chairside treatment attempts are the exception rather than the rule. This retrospective study evaluated whether consistent practice of behavioral management principles and techniques embedded in a specific dental environment enables successful dental treatment of PIMD. Materials and methods: The feasibility of chairside dental prophylaxis in PIMD (n=36) was analyzed: specific behavioral management techniques were applied, and professional tooth cleaning (PTC) was performed in the dental chair. Clinical data obtained from medical records and a questionnaire were analyzed. Results: All patients had severe intellectual or multiple disabilities and had previously undergone at least one dental treatment under GA. Of these patients, 55.6% never had their teeth professionally cleaned before. Applying different behavioral techniques, all patients were compliant with receiving PTC in the dental chair. Conclusions: An individualized and disability-specific treatment strategy using various noninvasive and nonpharmacological behavioral guidance techniques resulted in a higher compliance rate in PIMD, which allowed chairside PTC and reduced the need for treatment under GA. Clinical relevance: Consistent implementation of various behavioral guidance techniques and communication strategies in a supportive environment enabled all patients to receive chairside PTC and be involved in a lifelong recall program. [ABSTRACT FROM AUTHOR]

The purpose of this material is to expose the fact that, by using ceramic masses, special results are obtained in manufacturing of the esthetic component of metal-ceramic crowns, the working technique presenting numerous advantages. Compliance with the manufacturing criteria of mixed metal-ceramic prosthetic restorations suitable to clinical situations lead to a high satisfaction both for the patients and for the dentist-dental technician team. Depending on the functional aspects of the prosthetic field, the dentist’s requirements and the patient’s wishes, the prosthetic restoration will be carried out following biomechanical, biofunctional and prophylactic principles. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to compare the clinical outcomes in dental prophylaxis between rubber cup polishing and an air polishing system using erythritol powder, with or without prior dental plaque disclosure. Method and materials: In this single-blind, randomized, controlled, split-mouth clinical trial, healthy participants with full-mouth plaque score ≥ 60% were recruited. Quadrants in each participant were randomly assigned to four treatment groups: air polishing with prior plaque disclosure; air polishing without plaque disclosure; rubber cup polishing with prior plaque disclosure; or rubber cup polishing without plaque disclosure. Plaque scores and treatment time for each quadrant were recorded. Posttreatment satisfaction questionnaires for both the participants and operators were also completed. Results: In total, 88 participants consisting of 42 men and 46 women (mean age 23.1 ± 2.0 years) were recruited. Air polishing with prior plaque disclosure had significantly lower posttreatment marginal mean plaque score (21.7 ± 17.5%) compared to air polishing (33.5 ± 23.4%) or rubber cup polishing (34.5 ± 19.7%) without prior plaque disclosure (P < .001). Marginal mean treatment time for air polishing (325 seconds; SE = 10 seconds) was significantly shorter compared to rubber cup polishing (407 seconds; SE = 15 seconds) (P < .001). Both the participants and operators preferred air polishing over rubber cup polishing (P < .001). Conclusion: Prior plaque disclosure enhanced the effectiveness of plaque removal. Air polishing exhibited better treatment efficiency than rubber cup polishing and was the patients' and clinicians' preferred treatment modality.

Background: The aim of this study was to investigate the effect of an immune-boosting beverage with Sambucus nigra (SAM), an energy beverage (ENE), an in-office bleaching agent with a novel composition, and a fine-grain professional dental prophylaxis (PDP) paste on the surface roughness (Ra) and microhardness (MH) of CAD/CAM restorative materials over time. Methods: Feldspathic ceramic (FC) and polymer infiltrated ceramic network (PICN) specimens were prepared (N = 126). Glazing, polishing, bleaching and immersion in beverages groups were formed. Bleaching gel containing 25% Hydrogen Peroxide Superior was applied to the specimens with a bleaching pen. Ra and MH were measured at five time points of baseline, days 1, 14, 28 and after PDP. Scanning electron microscopy (SEM) images were taken after PDP. Statistics were performed by ANOVA and Bonferroni tests (α = 0.05). Results: Ra increased over time regardless of material type, polishing method, beverage type and bleaching (p < 0.0001). Glazed and polished FCs caused higher roughness than PICN, SAM and ENE than distilled water, and bleaching than no bleaching (p < 0.0001). For glazed or polished FCs, MH decreased slightly lower at all time points, but for PICN, MH increased until day 28, not changing after PDP. Beverages decreased the MH of ceramics at all time points, but PDP did not lead to a change for PICN (p < 0.0001). The MH decreased more in bleached specimens than in non-bleached specimens up to day 28 (p < 0.0001). According to the SEM images after PDP, the glazed FC had numerous crack marks, pores and detached particles. The polished FC had traces of mechanical polishing. The polymer part of the PICN had voids, but the ceramic part was better preserved. Conclusions: Both energy beverages and immune-boosting beverages can increase roughness on FCs compared to PICNs. There was no significant difference between glazing and polishing in terms of lower roughness in FCs. PDP tended to slightly increase the roughness for ceramics, while it tended not to change it for PICN. Beverages decreased the microhardness of ceramics. PDP further decreased the microhardness in glazed ceramics, but increased it in polished ones. In PICN the microhardness increased over time, but decreased slightly after PDP. [ABSTRACT FROM AUTHOR]

Objective: This research aims to determine the effect photobiomodulation treatment has on oral inflammation after routine dental prophylaxis in canines. Background: Photobiomodulation therapy after dental procedures has been documented to reduce inflammation in human and animal models. Methods: Canines were randomly assigned into three groups: control group (CG; n = 15), left side treated group (LTG; n = 15), and right side treated group (RTG; n = 15). The canines in the treatment groups received four points of irradiation [GaAlInP--650 nm, continuous wave (CW), 0.1 W, 0.2 W/cm², 100 sec, 10 J, 20 J/cm²]. The gingiva was evaluated by a veterinary investigator blinded to the treatment groups for erythema and edema on the day following treatment. Student's t-test and Student's paired t-test were used for data analysis. Results: Reductions in composite inflammation (p = 0.008) and erythema (p = 0.030) were observed in the LTG relative to the CG at the location of the left dental arcade. Reductions in composite inflammation (p = 0.025) and erythema (p = 0.013) were also observed in the combined treated arcades of the LTG and RTG when compared to the CG. Conclusions: The results indicate that the canines who received a single photobiomodulation treatment on the left dental arcade demonstrated a decrease in inflammation and erythema. [ABSTRACT FROM AUTHOR]