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Proximal contact loss between implant-supported prostheses and adjacent natural teeth: a retrospective study
Clinical Oral Implants Research
|April 28, 2015
Summary
Proximal contact loss is common in posterior implant prostheses, affecting 65% of restorations. Patient age, prosthesis type, and time since delivery are key contributing factors to this issue.
Area of Science:
- Dental Implantology
- Prosthodontics
- Biomaterials
Background:
- Proximal contact loss in posterior implant-supported prostheses can lead to secondary issues.
- Understanding contributing factors is crucial for improving long-term prosthesis success.
Purpose of the Study:
- To determine the prevalence of proximal contact loss between posterior implant prostheses and adjacent teeth.
- To identify patient and prosthesis factors associated with this contact loss.
Main Methods:
- Assessed interproximal space and tooth mobility in 45 patients with posterior implant prostheses.
- Utilized questionnaires to gather patient-reported data.
- Analyzed data using statistical tests (Kruskal-Wallis, Mann-Whitney U, Spearman's rank correlation).
Main Results:
- 65% of posterior implant prostheses exhibited proximal contact loss.
- Mean interproximal space correlated positively with patient age and time since prosthesis delivery.
- Interproximal space was significantly larger in implant-supported fixed partial dentures (FPD) compared to single crowns (SC).
Conclusions:
- Proximal contact loss is a frequent occurrence with posterior implant prostheses.
- Patient age, prosthesis type (FPD vs. SC), and prosthesis duration are significant contributing factors.
- Further research may focus on preventative strategies for maintaining proximal contacts.
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