title: Influence of bonded composite resin cingulum rest seats on abutment tooth periodontal tissues: a longitudinal prospective study.
abstract: This study aimed to examine the longitudinal influence of bonded composite resin cingulum rest seats on abutment tooth periodontal tissues in removable partial dentures (RPDs). Twenty-eight patients with RPDs were enrolled in the study. Thirty-one cingulum rest seats were prepared for an anterior tooth using composite resin and a standardized method for each patient. Periodontal indices such as probing pocket depth (PD), bleeding on probing (BoP), and tooth mobility (TM) were measured at the time of denture insertion (baseline) and at least 3 months postinsertion (up to 8 years). Control data were obtained from the remaining nonprepared anterior teeth on the other side of the arch. None of the bonded resin rest seats failed, but slight abrasion was observed in 3 rest seats. No significant differences were found in terms of PD, BoP, and TM between baseline and postinsertion data for abutments with bonded resin rest seats and controls. It is suggested that bonded composite resin cingulum rest seats can be used longitudinally without damaging the periodontal tissues of abutment teeth.
authors: Osaka University School of Dentistry, Department of Prosthodontics and Oral Rehabilitation, Osaka, Japan. ymaeda@dent.osaka-u.ac.jp
authors: Yoshinobu
authors: Y
authors: Maeda
authors: Yoshiko
authors: Y
authors: Kinoshita
authors: Hanako
authors: H
authors: Satho
authors: Tsung-Cjieh
authors: TC
authors: Yang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003188:Composite Resins; D000044:Dental Abutments; D001840:Dental Bonding; D017267:Dental Prosthesis Design; D019554:Dental Restoration Wear / Q000145:classification; D003832:Denture, Partial, Removable; D005260:Female; D005500:Follow-Up Studies; D005884:Gingival Hemorrhage / Q000145:classification; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D010514:Periodontal Pocket / Q000145:classification; D011446:Prospective Studies; D014086:Tooth Mobility / Q000145:classification; D016896:Treatment Outcome
chemical_list: D003188:Composite Resins