title: Patient satisfaction with implant-retained mandibular overdentures: a retrospective study.
abstract: OBJECTIVE
  The aim of this study was evaluation of the effect of age, gender, and past prosthetic history (duration of edentulism, number of complete dentures before implant treatment, and number of adjustment appointments) on patients' ratings of satisfaction (comfort, hygiene, retention, appearance, speech, mastication, and overall satisfaction).
  
  
  METHODS
  In this retrospective study, 55 patients who were treated with mandibular overdentures retained by splinted implants from 1998 to 2004 and met the inclusion criteria of the study were selected. Each patient was asked to fill out a questionnaire to evaluate his/her general satisfaction with the implant prostheses and other aspects of satisfaction such as comfort, aesthetic, function, and hygiene. Data were analyzed using a marginal model and the generalized estimating equations methodology to assess the relationship between the scores and the patients' demographic and past prosthetic histories. Significance was accepted at 5% and expressed as p values and odds ratio (OR).
  
  
  RESULTS
  Gender had significant correlation with comfort (p < .0001). Years of being edentulous prior to implant/prosthetic treatment had direct effects on the general satisfaction and satisfaction of comfort (p < .01). One extra denture used before implant treatment resulted in less comfort (p < .01) and poorer function (p < .001). Elders were more satisfied with aesthetic (OR = 0.96) and comfort (OR = 2.96). Number of adjustment appointments had a positive correlation with comfort (p < .001) and a negative correlation with satisfaction of aesthetic (p < .001).
  
  
  CONCLUSIONS
  The results of this study demonstrated that satisfaction was correlated with age, gender, and past prosthetic history in the patients rehabilitated with the implant-supported overdentures.
authors.affiliation: Department of Prosthodontics, Implant and Dental Research, School of Dentistry, Medical Sciences/University of Tehran, Tehran, Iran.
authors.forename: Hakimeh
authors.initials: H
authors.lastname: Siadat
authors.forename: Marzieh
authors.initials: M
authors.lastname: Alikhasi
authors.forename: Ali
authors.initials: A
authors.lastname: Mirfazaelian
authors.forename: Farideh
authors.initials: F
authors.lastname: Geramipanah
authors.forename: Farid
authors.initials: F
authors.lastname: Zaery
mesh_terms: D000367:Age Factors; D000368:Aged; D000044:Dental Abutments; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003781:Denture Retention; D003828:Denture, Overlay; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation*; D008297:Male; D008334:Mandible; D008875:Middle Aged; D016017:Odds Ratio; D017060:Patient Satisfaction; D012044:Regression Analysis; D019233:Retreatment; D012189:Retrospective Studies; D012737:Sex Factors; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants