Improving Accuracy of Jaw Reconstruction Based on Gender Differences.

PURPOSE: The aim of the present study was to redetermine the position of the key points (skeletal marker points) in the damaged female and male jaws to improve the accuracy of jaw reconstruction. MATERIALS AND METHODS: To develop a personalized jaw reconstruction guidance program for each patient, we first made 3 statistics to compare the gender differences in the jaw. Next, we proposed and compared 3 methods to use to restore the key skeletal marker points of the damaged jaw according to our statistics. RESULTS: We collected 111 groups of computed tomography data of the jaw from normal people as experimental material. The use of our statistics showed that gender differences are present in the shape of the jaw. In addition, some key angles and distances of the jaw satisfied the Gaussian distribution. The reconstruction results showed that our methods will result in better effects than the widely used method. CONCLUSIONS: To reduce errors, gender differences should be considered when designing a reconstruction approach to the jaw. In addition, our methods can improve the accuracy of reconstruction of the jaw.