Does a prosthodontist spend more time providing mandibular two-implant overdentures than conventional dentures?

Int J Prosthodont. Jul-Aug 2002;15(4):397-403.


Purpose: In this article, the time taken by a prosthodontist to fabricate and maintain mandibular overdentures retained by two implants and conventional dentures is compared.

Materials and methods: Sixty edentulous patients between the ages of 65 and 75 completed a randomized clinical trial. All received new maxillary conventional dentures and either a mandibular conventional denture (n = 30) or a two-implant overdenture on ball attachments (n = 30). The time spent by the prosthodontist and the number of visits required for treatment, including both scheduled and unscheduled visits, were recorded for each patient from preliminary impressions to 6 months following delivery. Data from the two groups were compared using Mann-Whitney U tests.

Results: The prosthodontist spent a mean total time of 296 minutes in treating an implant overdenture patient and 282 minutes on a conventional denture patient during the period from preliminary impressions to the 6-month follow-up. The mean numbers of appointments were 10.1 (implant group) and 10.8 (conventional group). These differences were not significant.

Conclusion: Although additional knowledge is required to treat patients with implant prostheses, the time required by the prosthodontist to provide two-implant mandibular overdentures with ball attachments was not significantly different than the time needed for conventional denture treatment.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Cost-Benefit Analysis
  • Dental Implantation, Endosseous* / economics
  • Dental Implants* / economics
  • Dental Prosthesis, Implant-Supported* / economics
  • Denture Precision Attachment
  • Denture Retention / instrumentation
  • Denture, Complete, Lower* / economics
  • Denture, Complete, Upper
  • Denture, Overlay*
  • Female
  • Humans
  • Male
  • Mandible
  • Mouth, Edentulous / rehabilitation
  • Office Visits / statistics & numerical data
  • Statistics, Nonparametric
  • Time and Motion Studies*


  • Dental Implants