The effect of Er:YAG laser and different surface conditioning procedures on microtensile bond strength of the fissure sealant containing amorphous calcium phosphate after artificial aging

• Published in: Dental Materials Journal Vol. 33; no. 1; pp. 21 - 26
• Main Authors: UNAL, Murat, HUBBEZOGLU, Ihsan, ZAN, Recai, OZNURHAN, Fatih
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society for Dental Materials and Devices 2014; Japanese Society for Dental Materials and Devices
• Subjects: Acid Etching, Dental; Aging; Air Abrasion, Dental; Amorphous calcium phosphate; Bonding; Bonding strength; Calcium phosphate; Calcium Phosphates - chemistry; Cracks; Dental Bonding; Dental Cements - chemistry; Dentin-Bonding Agents - chemistry; Dentistry; Enamels; Er:YAG laser; Etching; Fissure sealant; Humans; In Vitro Techniques; Lasers; Lasers, Solid-State; Materials Testing; Microscopy, Electron, Scanning; Molar; Phosphoric Acids; Pit and Fissure Sealants - chemistry; Polymethacrylic Acids - chemistry; Subgroups; Surface Properties; Tensile Strength
• ISSN: 0287-4547; 1881-1361
• DOI: 10.4012/dmj.2013-176

The present study aimed to compare post-aging microtensile values of fissure sealant(FS) containing amorphous calcium phosphate(ACP) with or without bonding after various enamel-etching methods. The buccal enamel surfaces of teeth were prepared and divided into five main groups according to enamel etching (Group 1; acid-etching, Group 2; air-abrasion, Group 3; 2W, Group 4; 3W, and Group 5; 4W of Er:YAG laser). Each main group was subdivided as with(Subgroup B) or without(Subgroup A) a bonding system. We applied FS-containing ACP to etched enamel surfaces. All specimens were aged by Thermocycling and water bath. We then measured microtensile bond strengths and analyzed data with two-way ANOVA and Tukey’s tests. We found a statistically significant difference between Group 1 and Group 2, between Subgroup B of Group 5 and Subgroups B of all other groups, and between Subgroups A and Subgroups B of all main groups (p<0.01). Er:YAG laser-etching may be an alternative enamel etching method to acid-etching for ACP-containing FS.