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Marginal bone loss around tilted implants in comparison to straight implants: a meta-analysis
Alberto Monje1, Hsun-Liang Chan, Fernando Suarez
1Department of Periodontics and Oral Medicine, University of Michigan, School of Dentistry, Ann Arbor, MI 48109-1078, USA.
The International Journal of Oral & Maxillofacial Implants
|November 29, 2012
Summary
This systematic review found no significant difference in marginal bone loss between tilted and straight implants. Biomechanical complications were also not found to be significantly higher in tilted implants.
Area of Science:
- Dental Implantology
- Prosthodontics
- Biomaterials Science
Background:
- Dental implants are widely used for tooth replacement.
- Implant positioning (straight vs. tilted) can affect outcomes.
- Marginal bone loss and biomechanical complications are key indicators of implant success.
Purpose of the Study:
- To compare marginal bone loss around tilted versus straight dental implants.
- To assess the incidence of biomechanical complications associated with tilted implants.
Main Methods:
- Systematic review and meta-analysis of studies published between 2000-2011.
- Inclusion of English-language human clinical studies with at least 12-month follow-up.
- Extraction of marginal bone loss data and biomechanical complication incidence.
Main Results:
- Eight studies (1015 implants) provided 1-year data; three studies (302 implants) provided 3-5 year data.
- No significant difference in marginal bone loss was observed between tilted and straight implants in the short and medium terms.
- Insufficient data precluded a comparison of biomechanical complication incidence.
Conclusions:
- The hypothesis that tilted implants have increased marginal bone loss was not supported.
- Evidence does not support a higher incidence of biomechanical complications with tilted implants.
- Caution is advised when interpreting results due to the study designs of included articles.
