Relevance of Variations in the Opposing Dentition for the Functionality of Fixed and Removable Partial Dentures: A Systematic Review

Table 5

Longevity of removable denture.

Study	Intervention	Kennedy Class	Gap width/residual dentition	Opposing dentition	Followup in month (range)	Success rate (%)^a
Randomized controlled trials
Budtz-Jørgensen and Isidor, 1990 [12]	RPD	n/a	RD = 7.5 ± 1.7	CD	60 ± 0	100%
Retrospective interventional studies
Studer et al., 1998 [20]	RPD	I (63.1%); II (23.8%); III (10.8%); IV (2.3%)	n/a	ND/FPD (36.9%); RPD (47.7%); CD (15.4%)	66 ± 42.9 (12–192)	61.5%

^aPercentage of manufactured prostheses, that were still functional after the defined observation period.
CD: complete denture, FPD: fixed partial denture, IFP: implant-supported fixed prostheses, ND: natural dentition, RD: residual dentition, RPD: removable partial denture, n/a: not available.