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2 results on '"Zirconium oxynitrate"'

1. Bonding to enamel using alternative Enamel Conditioner/etchants.

Author

Yao, Chenmin, Ahmed, Mohammed H., Yoshihara, Kumiko, Mercelis, Ben, Parise Gré, Cristina, Van Landuyt, Kirsten L., Huang, Cui, and Van Meerbeek, Bart

Subjects
*DENTAL enamel, *BOND strengths, *PHOSPHORIC acid, *ETCHING reagents, *AGE differences
Abstract

• Enamel Conditioner and ZON etchant etched enamel as affective as phosphoric acid. • EC, ZON and phosphoric acid resulted in comparable bond strength to enamel. • Multi Etchant dissolved hydroxyapatite rods least, as revealed by TEM. Enamel bond durability of three new alternative etchants combined with three representative adhesives was determined. The 'immediate' and 'aged' micro-tensile bond strength (μTBS) of the 3-step etch&rinse adhesive OptiBond FL ('O-FL', Kerr), 2-step self-etch (SE) adhesive Clearfil SE Bond 2 ('C-SE2', Kuraray Noritake) and universal adhesive Adhese Universal ('ADU', Ivoclar Vivadent) were measured when bonded to enamel following either a proprietary organic acid-containing Enamel Conditioner ('EC', Shofu), a phosphoric-acid monomer-containing Multi Etchant ('ME', Yamakin: 10-methacryloyloxy tetraethylene glycol dihydrogenphosphate or MTEGP), or a metal salt-based ZON etchant ('ZON', Ivoclar Vivadent: ZrO(NO 3) 2). All alternative etchants were used in replacement of phosphoric acid, the latter (K-Etchant, Kuraray Noritake) also used with O-FL and ADU, in addition to C-SE2 that was solely used in SE mode (controls). The enamel-etching patterns and de-bonded fracture surfaces were examined by SEM, while the interfaces with enamel were ultra-morphologically characterized by TEM. No statistically significant difference in immediate and aged μTBS, obtained by combining the three alternative etchants with the three adhesives, was recorded as compared with the respective controls, except for ME combined with O-FL. Upon aging, significant reduction in μTBS was recorded for the ME/C-SE2 and ME/ADU combinations. The percentage of adhesive failures increased with aging. SEM revealed similar etching patterns produced by EC and ZON as by classic phosphoric-acid etching, for which also numerous micro-resin tags at the adhesive-enamel interface were disclosed. Durable bonding to enamel was generally obtained for all etchant/adhesive combinations with the exception of the ME/O-FL combination. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Bonding to enamel using alternative Enamel Conditioner/etchants

Author

Cui Huang, Bart Van Meerbeek, Benjamin Mercelis, Mohammed H Ahmed, Cristina Parise Gré, Chenmin Yao, Kumiko Yoshihara, and Kirsten Van Landuyt

Subjects
Technology, Dental Cements, 02 engineering and technology, Dental bonding, chemistry.chemical_compound, 0302 clinical medicine, Acid Etching, Dental, STRENGTH, Materials Testing, Dentin, General Materials Science, MODE, Composite material, UNIVERSAL ADHESIVE, Materials Science, Biomaterials, Enamel paint, Bond strength, 021001 nanoscience & nanotechnology, medicine.anatomical_structure, Enamel, Mechanics of Materials, visual_art, visual_art.visual_art_medium, Lewis acids, 0210 nano-technology, Life Sciences & Biomedicine, Zirconium oxynitrate, Materials science, SELF-ETCH ADHESIVES, Materials Science, Adhesive, PHOSPHORIC-ACID, CLINICAL-TRIAL, 03 medical and health sciences, stomatognathic system, SYSTEMS, Dental cement, Tensile Strength, Dentistry, Oral Surgery & Medicine, Ultimate tensile strength, MULTIMODE ADHESIVE, medicine, Dental Enamel, General Dentistry, Phosphoric acid, Science & Technology, DENTIN, Dental Bonding, 030206 dentistry, PERFORMANCE, Resin Cements, chemistry, Dentin-Bonding Agents, TEM
Abstract

OBJECTIVE: Enamel bond durability of three new alternative etchants combined with three representative adhesives was determined. METHODS: The 'immediate' and 'aged' micro-tensile bond strength (μTBS) of the 3-step etch&rinse adhesive OptiBond FL ('O-FL', Kerr), 2-step self-etch (SE) adhesive Clearfil SE Bond 2 ('C-SE2', Kuraray Noritake) and universal adhesive Adhese Universal ('ADU', Ivoclar Vivadent) were measured when bonded to enamel following either a proprietary organic acid-containing Enamel Conditioner ('EC', Shofu), a phosphoric-acid monomer-containing Multi Etchant ('ME', Yamakin: 10-methacryloyloxy tetraethylene glycol dihydrogenphosphate or MTEGP), or a metal salt-based ZON etchant ('ZON', Ivoclar Vivadent: ZrO(NO3)2). All alternative etchants were used in replacement of phosphoric acid, the latter (K-Etchant, Kuraray Noritake) also used with O-FL and ADU, in addition to C-SE2 that was solely used in SE mode (controls). The enamel-etching patterns and de-bonded fracture surfaces were examined by SEM, while the interfaces with enamel were ultra-morphologically characterized by TEM. RESULTS: No statistically significant difference in immediate and aged μTBS, obtained by combining the three alternative etchants with the three adhesives, was recorded as compared with the respective controls, except for ME combined with O-FL. Upon aging, significant reduction in μTBS was recorded for the ME/C-SE2 and ME/ADU combinations. The percentage of adhesive failures increased with aging. SEM revealed similar etching patterns produced by EC and ZON as by classic phosphoric-acid etching, for which also numerous micro-resin tags at the adhesive-enamel interface were disclosed. SIGNIFICANCE: Durable bonding to enamel was generally obtained for all etchant/adhesive combinations with the exception of the ME/O-FL combination. ispartof: DENTAL MATERIALS vol:35 issue:10 pages:1415-1429 ispartof: location:England status: published

Published
2019

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