title: Retrospective study of five-year clinical performance of direct composite restorations using a self-etching primer adhesive system.
abstract: This study was conducted to assess the five-year clinical performance of composite restorations using a self-etching primer adhesive system, Clearfil Liner Bond II. Restorations were rated using the following scale: A--Good; B--Clinically acceptable; C--Clinically unacceptable; or D--Already replaced. The ratings were analyzed using Freedman's test (p=0.01) and Steel-Dwass test (p=0.05). A total of 83 restorations from 36 patients were identified from treatment records. Twenty-six restorations (31.3%) presented A rating and 36 restorations (43.4%) were clinically acceptable (B rating), while five (6.0%) received C rating and 16 (19.3%) had already been replaced (D rating). The mean survival rate of serviceable restorations (i.e., combined A and B ratings) after five years was 74.7%. It was found that cavity form, including cavity size, and occlusal contact seemed to influence longevity.
authors.affiliation: Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Japan. nikaido.ope@tmd.ac.jp
authors.forename: Toru
authors.initials: T
authors.lastname: Nikaido
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Takada
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Kitasako
authors.forename: Miwako
authors.initials: M
authors.lastname: Ogata
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Shimada
authors.forename: Takako
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Nakajima
authors.forename: Masayuki
authors.initials: M
authors.lastname: Otsuki
authors.forename: Junji
authors.initials: J
authors.lastname: Tagami
authors.forename: Michael F
authors.initials: MF
authors.lastname: Burrow
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000180:Acrylic Resins / Q000737:chemistry*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003188:Composite Resins / Q000737:chemistry*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D005260:Female; D006801:Humans; D008297:Male; D008689:Methacrylates / Q000737:chemistry*; D008875:Middle Aged; D011140:Polyurethanes / Q000737:chemistry*; D012189:Retrospective Studies; D016019:Survival Analysis
chemical_list: D000180:Acrylic Resins; C112274:Clearfil Liner Bond 2; C029012:Composite Dental Resin; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D011140:Polyurethanes