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Overhanging interproximal silver amalgam restorations. Prevalence and side-effects
1Department of Operative Dentistry, Punjab Govt Dental College & Hospital, Amritsar, India.
Summary
Overhanging dental amalgam restorations are highly prevalent (64.12%), significantly increasing periodontal pocket depth and bone loss. These findings highlight the link between restoration overhangs and periodontal disease progression.
Area of Science:
- Dentistry
- Periodontology
- Restorative Dentistry
Background:
- Dental restorations, particularly Class II silver amalgam fillings, are common.
- Overhanging margins of these restorations may pose risks to periodontal health.
Purpose of the Study:
- To determine the prevalence of overhanging Class II silver amalgam restorations.
- To investigate the association between these overhangs and periodontal health indicators.
Main Methods:
- A cross-sectional study was conducted on patients at two dental colleges.
- Evaluated pocket depth and bone loss in relation to overhanging restorations versus unrestored teeth.
Main Results:
- A high prevalence of overhanging restorations (64.12%) was observed.
- Restored surfaces with overhangs showed increased mean pocket depth (3.75 mm vs. 3.46 mm) and bone loss (1.64 mm vs. 1.50 mm) compared to unrestored contralateral teeth.
Conclusions:
- Overhanging Class II silver amalgam restorations are common and linked to periodontal disease.
- Restoration overhangs contribute to periodontal breakdown, evidenced by increased pocket depth and bone loss.