[Research of implant accuracy using a digital registration method].

Purpose: The aim of this study was to introduce a new method to evaluate the clinical accuracy of implant position. The results were compared to traditional cone beam CT (CBCT) method.

Methods: A total of 36 implants from 24 patients with sufficient bone volume were enrolled into the study.

[Preliminary study of Simplant software in mandibular molar implantation].

Purpose: The purpose of the study was to investigate the clinical effect and implementation method of mandibular molar implantation using a CT machine combined with Simplant software so as to provide a safer and more reliable method for preoperative preparation of mandibular molar implantation.

Methods: CT/cone-beam CT (CBCT) examinations were applied among 10 cases selected into the study. The Simplant software was used to measure the distances between implantation point center and superior wall of inferior alveolar nerve canal (H1), buccolingual diameter (H2), mesiodistal diameter (H3), ginginal thickness(H4) and occlusal distance (H5).