Published in:
01-01-2020 | Caries | Original Article
Repair increases the survival of failed primary teeth restorations in high–caries risk children: a university-based retrospective study
Authors:
Luciana Fantinel Ruiz, Gabriel Ferreira Nicoloso, Renata Franzon, Tathiane Larissa Lenzi, Fernando Borba de Araujo, Luciano Casagrande
Published in:
Clinical Oral Investigations
|
Issue 1/2020
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Abstract
Objectives
We investigated factors associated with failure of adhesive restorations in primary teeth and whether repair may increase the survival of failed restorations placed in high–caries risk children.
Materials and methods
The sample comprised children who attended a university dental service to perform restorative treatment in primary teeth. Data were collected retrospectively from clinical records to assess the longevity of restorations. The outcomes were calculated in two levels: “Success” (Level 1)—when any re-intervention was considered as failure; “Survival” (Level 2)—when repaired restorations were considered clinically acceptable. The Kaplan-Meier survival test was used to analyze the longevity of restorations. Multivariate Cox regression with shared frailty was used to assess factors associated with failures (p < 0.05).
Results
A total of 584 primary teeth restorations (178 patients) were included in the analysis. The longevity of restorations up to 36 months (Level 1) was 34.8% (AFR 29.6%). Multi-surface restorations showed significantly more failures than single-surface ones (HR 1.69; 95% CI 1.18, 2.41), and endodontically treated teeth presented more failures compared to vital teeth (HR 2.22; 95% CI 1.35, 3.65). There was an increase in restoration survival when repair was not considered as failure (p < 0.001). The survival of repaired restorations (Level 2) reached 43.7% (AFR 24.1%).
Conclusions
Adhesive restorations placed in primary teeth of high–caries risk children showed restricted longevity; however, the repair of failed restorations has increased its survival over time.
Clinical relevance
Repair is a more conservative and technically simple procedure that increases the survival of failed restorations in primary teeth.