One-year results of maxillary overdentures supported by 2 titanium-zirconium implants - implant survival rates and radiographic outcomes.

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  • Additional Information
    • Source:
      Publisher: John Wiley and Sons, Inc Country of Publication: Denmark NLM ID: 9105713 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1600-0501 (Electronic) Linking ISSN: 09057161 NLM ISO Abbreviation: Clin Oral Implants Res
    • Publication Information:
      Publication: 2009- : Copenhagen : John Wiley and Sons, Inc.
      Original Publication: Copenhagen : Munksgaard, c1990-
    • Subject Terms:
      Dental Prosthesis, Implant-Supported* ; Dental Restoration Failure* ; Denture, Overlay*; Dental Implantation, Endosseous/*methods; Aged ; Aged, 80 and over ; Alveolar Bone Loss/diagnostic imaging ; Alveolar Bone Loss/etiology ; Cone-Beam Computed Tomography ; Denture Design ; Female ; Humans ; Jaw, Edentulous/diagnostic imaging ; Jaw, Edentulous/rehabilitation ; Male ; Maxilla/diagnostic imaging ; Middle Aged ; Prospective Studies ; Titanium ; Zirconium
    • Abstract:
      Objective: To assess implant survival rates and peri-implant bone loss of 2 titanium-zirconium implants supporting maxillary overdentures at 1 year of loading.
      Material and Methods: Twenty maxillary edentulous patients (5 women and 15 men) being dissatisfied with their complete dentures were included. In total, 40 diameter-reduced titanium-zirconium implants were placed in the anterior maxilla. Local guided bone regeneration (GBR) was allowed if the treatment did not compromise implant stability. Following 3 to 5 months of healing, implant-supported overdentures were inserted on two ball anchors. Implants and overdentures were assessed at 1, 2, 4, and 8 weeks after implant insertion and 2, 4, and 12 months after insertion of overdentures (baseline). Standardized radiographs were taken at implant loading and 1 year. Implant survival rates and bone loss were the primary outcomes.
      Results: Nineteen patients (1 dropout) with 38 implants were evaluated at a mean follow-up of 1.1 years (range 1.0-1.7 years). One implant failed resulting in an implant survival rate of 97.3%. There was a significant peri-implant bone loss of the implants at 1 year of function (mean, 0.7 mm, SD = 1.1 mm; median: 0.48 mm, IQR = 0.56 mm).
      Conclusions: There was a high 1-year implant survival rate for edentulous patients receiving 2 maxillary implants and ball anchors as overdenture support. However, several implants exhibited an increased amount of bone loss of more than 2 mm. Overdentures supported by 2 maxillary implants should thus be used with caution as minimally invasive treatment for specific patients encountering problems with their upper dentures until more long-term data is available.
      (© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
    • Contributed Indexing:
      Keywords: alveolar bone loss; ball anchor; bone resorption; dental implants; dental prosthesis; edentulous; implant-supported; jaw; maxilla; survival rate; titanium-zirconium
    • Accession Number:
      C6V6S92N3C (Zirconium)
      D1JT611TNE (Titanium)
    • Publication Date:
      Date Created: 20160507 Date Completed: 20180601 Latest Revision: 20180601
    • Publication Date:
      20231215
    • Accession Number:
      10.1111/clr.12863
    • Accession Number:
      27150942