Complications and failures in removable partial dentures: a clinical evaluation.
The design of removable partial dentures (RPDs) is an important factor for good prognostication. The purpose of this study was to clarify the effectiveness of denture designs and to clarify the component that had high rates of failure and complications. A total of 91 RPDs, worn by 65 patients for 2-10 years, were assessed. Removable partial dentures were classified into four groups: telescopic dentures (TDs), ordinary clasp dentures (ODs), modified clasp dentures (MDs) and combination dentures (CDs). The failure rates of abutment teeth were the highest and those of retainers were the second highest. The failure rates of connectors were generally low, but they increased suddenly after 6 years. Complication and failure rates of denture bases and artificial teeth were generally low. Complication and failure rates of TDs were high at abutment teeth and low level at retainers. Complication and failure rates of ODs were high at retainers.
Saito
M
M
Removable Prosthodontics and Stomatognathic Rehabilitation, Department of Oral Functional Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan. massaito@den.hokudai.ac.jp
Notani
K
K
Miura
Y
Y
Kawasaki
T
T
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000044:Dental Abutments / Q000009:adverse effects; D003722:Dental Alloys / Q000737:chemistry; D016734:Dental Clasps / Q000009:adverse effects; D019232:Dental Restoration Failure; D003819:Denture Bases / Q000009:adverse effects; D003779:Denture Design; D003781:Denture Retention; D003828:Denture, Overlay / Q000009:adverse effects; D003832:Denture, Partial, Removable / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010969:Plastics / Q000737:chemistry; D011379:Prognosis; D012117:Resins, Synthetic / Q000737:chemistry; D013223:Statistics as Topic; D013499:Surface Properties; D014093:Tooth, Artificial / Q000009:adverse effects
D003722:Dental Alloys; D010969:Plastics; D012117:Resins, Synthetic