title: A follow-up study on removable partial dentures in undergraduate program: part I. participants and denture use by telephone survey.
abstract: The aim of this study was to investigate the clinical outcome of removable partial dentures (RPDs) designed to minimize denture mobility during function. Using archived files of the undergraduate program between 2003 and 2005 at Tokyo Medical and Dental University, a list of 169 patients treated with 184 RPDs was created. The RPDs had either an acrylic resin-base or a cobalt-chrome framework-base. Two examiners telephoned all the listed patients and interviewed 118 patients (70%) regarding the use of their RPDs. Of 118 patients, 42 (36%) had stopped using, mainly due to problems with abutment teeth in resin-based dentures, and replacement in cobalt-chrome-based dentures. There was no significant difference in mean age, gender distribution, mean number of remaining/abutment teeth, distribution of denture arch, and Kennedy classification between denture use and nonuse groups (p>0.05). The nonuse group showed a significantly higher percentage of resin-base compared to the use group (p = 0.006). Logistic regression analysis indicated that resin-base was a significant risk factor for nonuse (p = 0.008). The present findings suggest that abutment teeth should be selected carefully, especially in this type of resin-based RPDs, and that the denture base material may be a critical factor which determines denture use.
authors.affiliation: Removable Partial Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
authors.forename: Eiko
authors.initials: E
authors.lastname: Yoshida
authors.forename: Kenji
authors.initials: K
authors.lastname: Fueki
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Igarashi
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D000368:Aged; D002858:Chromium Alloys / Q000737:chemistry; D000044:Dental Abutments; D016734:Dental Clasps; D003764:Dental Materials / Q000737:chemistry; D003819:Denture Bases; D003779:Denture Design; D003781:Denture Retention; D003832:Denture, Partial, Removable / Q000706:statistics & numerical data; D005260:Female; D005500:Follow-Up Studies; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D007407:Interviews as Topic; D007576:Jaw, Edentulous, Partially / Q000145:classification / Q000534:rehabilitation; D008297:Male; D008409:Mastication / Q000502:physiology; D008875:Middle Aged; D010165:Palladium / Q000737:chemistry; D017060:Patient Satisfaction; D011788:Quality of Life; D012834:Silver / Q000737:chemistry; D016896:Treatment Outcome
chemical_list: D000180:Acrylic Resins; D002858:Chromium Alloys; D003764:Dental Materials; D006047:Gold Alloys; D012834:Silver; D010165:Palladium