The aim of this study is to assess the survival of direct anterior and/or posterior composite restoration placed in general anesthesia in permanent teeth of adult patients with intellectual and/or physical disabilities. Further aim is to identify potential risk factors predicting repeated dental treatment under general anesthesia.

Survival of composite restorations placed under general anesthesia in adult patients with intellectual and/or physical disabilities between 2011 and 2019 will be retrospectively analysed. Failure is defined as the need for replacement of at least one surface of the original restoration or extraction of the tooth. Individual-, tooth- and restoration-related factors are obtained from digital and paper-based dental records. Mean annual failure rates (mAFR) and median survival time will be calculated (Kaplan-Meier statistics). The effect of potential risk factors on failure will be tested using univariate log-rank tests and multivariate Cox-regression analysis.

Adult patients with intellectual and/or physical disabilities who received dental treatment under general anesthesia between 2011 and 2017 will be retrospectively analyzed. Demographic, anamnestic, oral health and treatment factors will be obtained from digital and paper-based dental records. Duration of intervals without a subsequent dental treatment under general anesthesia will be assessed using Kaplan-Meier statistics. Potential predictive factors will be tested using log-rank tests and multi-variate Cox-regression analysis.

No patient treatment is associated with the study.

Inclusion Criteria:

• Adult patients with intellectual and/or physical disabilities that were treated under general anesthesia in the Department of Preventive Dentistry, Periodontology and Cariology between January 2011 and December 2019

Exclusion Criteria:

• none

Adult patients with intellectual and/or physical disabilities and need for dental treatment under general anesthesia.