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Occlusal Contact Changes in Implant-Supported Fixed Prostheses: A Systematic Review.
Itt Assoratgoon1,2, Ramadhan Hardani Putra3, Hiroki Hihara1
1Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan.
Journal of Oral Rehabilitation
|July 24, 2025
Summary
Implant-supported crowns experience increasing occlusal forces and contact durations over time, nearing natural tooth loads. Advanced measurement techniques are needed to understand these long-term occlusal changes.
Area of Science:
- Dental Implantology
- Prosthodontics
- Biomaterials Science
Background:
- Implant-supported prostheses face mechanical and biological challenges.
- Occlusal contacts in these prostheses can change within six months of placement.
- Managing excessive loads is crucial for prosthesis longevity.
Purpose of the Study:
- To systematically review and analyze studies on changes in occlusal contacts after implant-supported prosthesis superstructure placement.
- To evaluate the long-term occlusal behavior of implant-supported restorations.
Main Methods:
- Systematic review protocol aligned with PRISMA-P guidelines.
- Inclusion criteria focused on studies measuring stress distribution, occlusal force, contact, scheme, or time.
- Exclusion of non-English articles, case reports, animal studies, and reviews.
Main Results:
- Extensive initial screening of 1867+ articles.
- Rigorous full-text review of 85 articles.
- Eight studies ultimately met the inclusion criteria for the review.
Conclusions:
- Implant-supported crowns' occlusal forces approach or exceed those of natural teeth over time.
- Increased occlusal force, larger contact areas, and longer occlusion durations are observed.
- Need for advanced measurement techniques to monitor long-term occlusal changes in implant restorations.
