Abstract

As oral rehabilitation of tooth agenesis usually begins at a very young age, it is important to plan the therapy in advance in order to prepare the patient for the final treatment after the end of skeletal and dental growth. The diverse patterns of tooth agenesis require interdisciplinary oral rehabilitation adapted to individual factors like patient's age, number of missing teeth, and alveolar-bone development. The aim of the present high volume single-center study was to provide an overview of the management of patients with tooth agenesis, in terms of treatment approaches, associations, and long-term implant survival, over a period of 30 years. Descriptive analyses were performed to analyse treatment approaches and and how they reated to severity of agenesis as well as patients' gender and age. Kaplan-Meier survival curves and log-rank-tests were used to investigate implant survival over time. Treatment starts usually in childhood or adolescence; orthodontic therapy was the most common treatment. All treatment options showed similar high survival rates. External bone augmentation might be a risk-factor for implant loss.

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