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Effects of uncontrolled periodontitis on marginal bone alterations around implants: A case-control study
1Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, 145 West Changle Road, Xi'an, China.
Clinical Implant Dentistry and Related Research
|May 31, 2017
Summary
Uncontrolled periodontitis leads to significant tooth loss, but dental implants maintain stable marginal bone levels compared to natural teeth. This suggests implants offer greater resilience against periodontal disease progression.
Area of Science:
- Dental Implantology
- Periodontology
- Oral Health Research
Background:
- The role of bacterial infection in marginal bone loss around dental implants, mirroring natural teeth, remains debated.
- Understanding the impact of periodontal disease on peri-implant bone health is crucial for long-term implant success.
Purpose of the Study:
- To retrospectively compare marginal bone alterations around dental implants in patients with uncontrolled periodontitis versus periodontally healthy individuals.
- To evaluate the long-term effects (≥6 years) of uncontrolled periodontitis on peri-implant bone levels.
Main Methods:
- A retrospective analysis of 96 Straumann implants in 60 patients (30 uncontrolled periodontally compromised patients - PCP, 30 periodontally healthy patients - PHP).
- Patients were matched for age, gender, smoking, and implant characteristics.
- Radiographic marginal bone loss was calculated for implants and adjacent teeth, using restoration time as baseline.
Main Results:
- No implant loss was observed in either group.
- Periodontally compromised patients lost significantly more teeth (3.93 ± 2.36) than healthy patients (0.67 ± 0.80).
- Bone loss was significantly greater around natural teeth than implants in PCPs (0.54 vs. 0.22 mm), but not in PHPs (0.18 vs. 0.22 mm). Peri-implant bone loss did not differ significantly between groups.
Conclusions:
- Dental implants demonstrate more stable marginal bone levels than natural teeth when subjected to uncontrolled periodontal disease.
- Implants may offer a more predictable outcome in patients with compromised periodontal health.
