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Updated: Jun 27, 2026
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3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
Published on: August 4, 2020
[Mandibular unilateral free-end missing reconstructed by implant prosthesis]
1Section of Removable Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University. ayukawa@dent.kyushu-u.ac.jp
Nihon Hotetsu Shika Gakkai Zasshi
|November 28, 2008
Summary
Masticatory dysfunction due to missing teeth was treated with implant-retained prostheses. Over 4 years, tooth movement caused separation, requiring prosthesis refabrication for successful rehabilitation.
Area of Science:
- Dental implantology
- Prosthodontics
- Restorative dentistry
Background:
- A 58-year-old female patient experienced masticatory dysfunction due to missing lower right molars and a detached upper right molar fixed partial denture.
- The case presented challenges including potential secondary caries and extrusion of the upper right second molar.
Observation:
- Implant-retained fixed partial dentures with hybrid ceramics were fabricated for the lower right molar region.
- Conventional fixed partial dentures were used for the upper right molar region.
- The patient was monitored for over 4 years post-treatment.
Findings:
- A separation occurred between the mandibular implant prosthesis and the adjacent lower right second premolar during the follow-up period.
- This interdental separation was successfully managed by refabricating the prosthesis for the second premolar.
Implications:
- Physical tooth movement can lead to separation between natural teeth and implant-retained prostheses.
- Implant-retained fixed partial dentures offer a successful solution for rehabilitating functional problems arising from occlusal support loss.
