Survival of abutment teeth used for telescopic abutment retainers in removable partial dentures.
This retrospective clinical study investigated the survival of 385 abutment teeth retaining 117 removable partial dentures with 3 types of telescopic abutment retainers. Within a mean service time of 6.26 years, 8.8% of 385 abutment teeth were extracted. Cox regression analysis revealed a significantly higher risk of tooth loss for posterior teeth (odds ratio: 2.985) and for teeth with root canal treatment (odds ratio: 3.298), whereas age, sex, and number and type of telescopic retainer had no influence on survival. Root canal-treated teeth did not show a higher fracture rate, excluding this as an explanation for an increased risk of tooth loss.
Dittmann
Britta
B
Department of Prosthodontics, University of Heidelberg, Germany.
Rammelsberg
Peter
P
D003442:Crowns; D000044:Dental Abutments; D017267:Dental Prosthesis Design; D003832:Denture, Partial, Removable; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D012307:Risk Factors; D014082:Tooth Fractures; D016388:Tooth Loss; D019553:Tooth, Nonvital