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Narrow-diameter implants in the anterior region: A meta-analysis
Summary
Narrow-diameter implants (NDIs) show predictable outcomes for anterior single crowns, with survival rates and marginal bone levels comparable to regular-diameter implants. Further research is needed to assess esthetic results.
Area of Science:
- Dental Implantology
- Prosthodontics
Background:
- Anterior region implant placement presents challenges.
- Limited data exists on narrow-diameter implants (NDIs) in anterior sites.
- This review focuses on functional and esthetic outcomes of NDIs for anterior single crowns.
Purpose of the Study:
- To systematically review the functional and esthetic performance of anterior single crowns supported by NDIs.
- To compare outcomes of NDIs with regular-diameter implants in the anterior region.
Main Methods:
- Systematic literature search across ten databases.
- Inclusion of 21 studies for qualitative analysis and 3 for meta-analysis.
- Assessment of risk of bias and application of random-effects meta-analyses for survival, success, and marginal bone level (MBL).
Main Results:
- Analysis of 892 NDIs in 736 patients with a mean follow-up of 40 months.
- No significant difference in survival rates between NDIs and control implants (Risk Difference: 0.02; P = .39).
- Mean success rate of 95.2% and no significant difference in MBL between NDI and control groups (Mean Difference: 0.02 mm; P = .87).
Conclusions:
- Single crowns supported by NDIs offer predictable treatment outcomes.
- Survival rates and MBL for NDIs are comparable to regular-diameter implants.
- More research is required on the esthetic performance of anterior NDIs due to data limitations.
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