title: Microleakage in resin composite restorations after antimicrobial pre-treatments: effect of KTP laser, chlorhexidine gluconate and Clearfil Protect Bond.
abstract: The current study evaluated the influence of KTP (Potassium-Titanyl-Phosphate) laser irradiation, 2% chlorhexidine gluconate and Clearfil Protect Bond on the microleakage of Class V composite restorations. Thirty human premolars were selected for cavity pretreatment. After Class V cavity restorations on the buccal and lingual surfaces, the teeth were randomly divided into four groups: Group I-Clearfil SE Bond; Group II-KTP laser + Clearfil SE Bond; Group III-2% chlorhexidine gluconate + Clearfil SE Bond; Group IV-Clearfil Protect Bond. The cavities were restored with resin composite. The teeth were then thermocycled for 500 cycles, dried and sealed with nail varnish, leaving 1 mm around the restorations and immersed in 0.5% basic fuchsin for 24 hours. They were then rinsed, dried and sectioned, and microleakage was assessed by dye penetration at the occlusal and gingival surface of the teeth using a stereomicroscope (30x). There were no significant differences among the four groups at the gingival surface (p > 0.05). Microleakage at the occlusal margins of all the groups was compared; differences between the KTP laser and chlorhexidine gluconate group and the KTP laser and Clearfil Protect Bond group were found to be statistically significant (p < 0.05).
authors: Department of Conservative Dentistry, School of Dentistry, Cumhuriyet University, Sivas, Turkey.
authors: Hergüner Seyda
authors: HS
authors: Siso
authors: Alper
authors: A
authors: Kustarci
authors: Emine Güilsah
authors: EG
authors: Göktolga
mesh_terms: D000891:Anti-Infective Agents, Local / Q000627:therapeutic use*; D001641:Bicuspid / Q000473:pathology*; D002710:Chlorhexidine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D004396:Coloring Agents; D003188:Composite Resins / Q000737:chemistry*; D003737:Dental Cavity Preparation / Q000379:methods; D003743:Dental Enamel / Q000473:pathology; D003763:Dental Leakage / Q000145:classification*; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent; D003804:Dentin / Q000473:pathology; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D006801:Humans; D006813:Humidity; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D012394:Rosaniline Dyes; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors
chemical_list: D000891:Anti-Infective Agents, Local; C503075:Clearfil Protect Bond; C438313:Clearfil SE Bond; D004396:Coloring Agents; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D019279:Resin Cements; D012394:Rosaniline Dyes; C025485:basic fuchsin; C010882:chlorhexidine gluconate; D002710:Chlorhexidine