title: [Evaluation of effects of quality scale for removable partial dentures in clinical application].
abstract: OBJECTIVE
  To evaluate the effects of quality scale for removable partial dentures (RPD)in clinical application.
  
  
  METHODS
  Quality scale for removable partial dentures was designed. Twelve items were devised for visual survey and try-in in base, artificial teeth, clasp, rest, connector and adjustment. The assessments were divided into 3 grades A, B and C. Four commercial dental laboratories were divided into experimental group and control group randomly. All RPD made in two groups were given score with the quality scale by single-blind method. In the experimental group,the technicians were familiar with the quality scale. The assessments were periodically feedbacked to administrative staffs and exchanges were carried out between doctors and technicians by telephone. No feedback information was provided in the control group. The assessments were compared between the two groups. The data was analyzed with SPSS17.0 software package.
  
  
  RESULTS
  The scores of assessments for base, artificial teeth, clasp, rest, connector and adjustment in the experimental group were greater than that in the control group. The difference was significant between the two groups by analysis of variance (P<0.01). The grade A and C for RPD used acrylic resin, flexible resin and cast framework in the experimental group was 27.2%,39.5%,40.6% and 9.2%, 7.9%,7.2%, respectively. The grade B was in the majority. In the control group, the grade A and C was 9.4%,15.6%,15% and 40.6%,23.6%,25%,respectively. The majority was grade B and the grade C was significantly higher than the experimental group(P<0.05).
  
  
  CONCLUSIONS
  Applying the quality scale of RPD can improve the fabricating quality of prosthesis.
authors.affiliation: Zhabei District Dental Centre of Shanghai Municipality, Shanghai 200070, China. lvjunbang57@163.com
authors.forename: Jun-bang
authors.initials: JB
authors.lastname: Lv
authors.forename: Hui-liang
authors.initials: HL
authors.lastname: Wu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiang-kang
authors.initials: XK
authors.lastname: Ke
authors.forename: Fu-xi
authors.initials: FX
authors.lastname: Cao
authors.forename: Liang
authors.initials: L
authors.lastname: Gu
authors.forename: Xi-cai
authors.initials: XC
authors.lastname: Wang
mesh_terms: D003779:Denture Design; D003832:Denture, Partial, Removable; D006801:Humans; D016037:Single-Blind Method