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Longevity of teeth and implants - a systematic review
C Tomasi1, J L Wennström, T Berglundh
1Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy at Göteborg University, Göteborg, Sweden. cristiano.tomasi@odontologi.gu.se
Journal of Oral Rehabilitation
|January 10, 2008
Summary
This systematic review found that tooth loss incidence ranged from 1.3% to 5% in long-term studies, while dental implant loss varied from 1% to 18%. Well-maintained patients experienced lower tooth loss than implant loss.
Area of Science:
- Dental Science
- Periodontology
- Prosthodontics
Background:
- Long-term survival rates of natural teeth and dental implants are crucial for patient outcomes.
- Systematic reviews are needed to synthesize evidence on tooth and implant loss incidence over extended periods.
Purpose of the Study:
- To systematically review and describe the incidence of tooth and implant loss in prospective longitudinal studies with a minimum 10-year follow-up.
- To compare tooth and implant survival rates based on available long-term data.
Main Methods:
- A systematic literature search was conducted for prospective longitudinal studies on tooth or implant survival (≥10 years).
- Studies with >30% dropout rate or <70% subject examination at 10 years were excluded.
- Data from 11 studies (3015 subjects) for teeth and 9 studies (476 subjects) for implants were analyzed.
Main Results:
- Tooth loss incidence over 10-30 years was 1.3%-5% in most studies, but 14%-20% in two Chinese rural population studies.
- Dental implant loss ranged from 1% to 18% across the included studies.
- Tooth loss rates were lower than implant loss rates in clinically well-maintained patients; bone level changes were minimal for both.
Conclusions:
- Long-term tooth loss incidence is generally low but can be higher in specific populations.
- Dental implant loss rates are variable, potentially higher than natural tooth loss in well-maintained patients.
- Direct comparison of tooth and implant longevity is challenging due to study heterogeneity.
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