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Plaque Accumulation Beneath Maxillary All-on-4™ Implant-Supported Prostheses
Samer Abi Nader1, Hazem Eimar1, Moath Momani2
1Division of Restorative Dentistry, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada.
Clinical Implant Dentistry and Related Research
|January 28, 2014
Summary
Plaque accumulates significantly on the fitting surfaces of All-on-4 maxillary prostheses, especially on the palatal side. Improving hygiene involves increasing implant distance and minimizing palatal extension for better oral care.
Area of Science:
- Dental Implantology
- Prosthodontics
- Oral Hygiene
Background:
- All-on-4 (™) maxillary prostheses offer an effective solution for edentulous patients.
- Maintaining hygiene for these fixed implant-supported prostheses presents significant challenges.
Purpose of the Study:
- To investigate plaque distribution on the fitting surface of All-on-4 fixed prostheses.
- To identify strategies for enhancing the hygiene of these dental restorations.
Main Methods:
- Twenty All-on-4 maxillary prostheses were analyzed 6 months post-delivery.
- Plaque accumulation was visualized using methylene blue staining.
- Digital imaging and statistical analysis quantified plaque distribution.
Main Results:
- An average of 28% of the fitting surface area was covered by plaque.
- Palatal areas showed three times more plaque (52.5%) compared to buccal areas (17.3%).
- Shorter inter-implant distances correlated with higher plaque accumulation in proximal areas.
Conclusions:
- All-on-4 prosthesis hygiene can be enhanced by increasing inter-implant distances.
- Minimizing the prosthesis's palatal coverage is recommended.
- Patient education should focus on optimizing oral hygiene practices for the palatal aspect.
