TREATMENT OUTCOME ASSESSMENT OF FOUR IMPLANT-RETAINED PALATELESS MAXILLARY OVERDENTURES WITH BIOLOGICAL AND BIOMECHANICAL COMPLICATIONS: A ONE-YEAR OBSERVATIONAL STUDY

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  • March 20, 2019
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  • Saenz de Viteri Tejeda, Hector
    • Affiliation: School of Dentistry, Department of Prosthodontics
Abstract
  • ABSTRACT Treatment outcome assessment of four-implant retained palateless maxillary overdentures with biological and biomechanical complications: a one-year observational study Objective: The purpose of this study was to assess the treatment outcome of four implant- retained palateless maxillary overdentures, their attachment systems, and the condition of surrounding hard and soft tissues after one year of use. Methods: Patients who had received a four implant-retained maxillary overdenture one-year prior were evaluated. Follow up visits consisted of an examination of the tissues and the prostheses, implant parts, a series of periapical radiographs to evaluate the bone levels around the implants, and probing depths. Prosthetic maintenance service was completed, and complications that were encountered were recorded. Results: Eleven patients received a final maxillary overdenture from a previous study. They wore a maxillary implant retained overdenture for one year. The follow up incidence was 78.6%. A total of 44 implants were evaluated for biomechanical and biological complications. There was 100% survival rate of the dental implants, a total of 30 mechanical complications, and a total of 16 implants presenting with bone loss. The two most common mechanical complications were the replacement of the nylon inserts due to loss of retention and denture tooth fracture. Conclusions: Biologic complications may be prevented or reduced by avoiding short dental implants placed in bone of limited quantity and quality. Biomechanical complications may be prevented or reduced by providing palatal coverage and bilateral balanced occlusion.
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  • In Copyright
Advisor
  • Cook, Ryan
  • De Kok, Ingeborg
  • Sanders, Anne
  • Reside, Glenn
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2018
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