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Marginal bone loss around implants supporting fixed restorations
Emre Mumcu1, Hakan Bilhan, Ali Cekici
1Department of Prosthodontics, Istanbul University, Çapa-Istanbul, Turkey. emremum@yahoo.com
The Journal of Oral Implantology
|August 18, 2010
Summary
Marginal bone loss around dental implants is not affected by implant size but is higher in older females and those with cantilever prostheses. Short implants are recommended over cantilevers when anatomy is limiting.
Area of Science:
- Dental Implantology
- Periodontology
- Biomaterials Science
Background:
- Marginal bone level is a critical indicator for dental implant success.
- Existing research lacks consensus on factors influencing bone loss around implants, including patient demographics and prosthesis design.
Purpose of the Study:
- To investigate the long-term effects of patient age, gender, implant size, and cantilever prostheses on marginal bone loss (MBL) around dental implants.
- To provide evidence-based recommendations for implant selection and prosthesis design to optimize long-term implant survival.
Main Methods:
- A longitudinal study evaluated 126 implants in 36 patients over 36 months post-loading.
- Radiographic measurements of marginal bone levels were analyzed using CorelDraw 11.0 software.
- Statistical analysis included Student t-test and 1-way ANOVA to assess the impact of various factors on MBL.
Main Results:
- No implant failures, excessive bone loss, or peri-implant inflammation were observed over 36 months.
- No significant correlation was found between MBL and implant length or diameter.
- MBL was significantly higher in older patients, female patients, and those with cantilever restorations.
Conclusions:
- Patient age, gender, and the presence of cantilever prostheses significantly influence marginal bone loss around dental implants.
- Short and/or narrow implants are advisable over cantilever extensions in situations with anatomical limitations to preserve marginal bone levels.
