Related Experiment Video
Updated: Feb 22, 2026
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Evaluation of Buccal Bone Concavity in the Esthetic Zone: A Cadaver Study
Ming-Pang Chung1, I-Ching Wang, Hsun-Liang Chan
1*Attending Doctor, Departments of Operative Dentistry and Endodontics, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan; Visiting Scholar, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI. †Visiting Scholar, Graduate Periodontics, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI. ‡Clinical Assistant Professor, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI. §Professor and Director, Graduate Periodontics, Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI.
Purpose:
The primary aim of this study was to evaluate the buccal bone concavity position and depth in the anterior maxilla. The accuracy of cone beam computed tomography (CBCT) to measure the buccal bone concavity was also investigated.
Material And Methods:
Eleven fresh cadaver heads were used in this study. CBCT images were first acquired, on which the location and depth of the buccal bone concavity were measured in maxillary incisors and canines. After full-thickness mucoperiosteal flap reflection, the corresponding measurements were made directly on cadavers. The accuracy and correlations between direct and image-derived measurements were analyzed statistically.
Results:
A total of 53 sites were measured. The mean depths were 2.88 ± 1.37 mm and 2.40 ± 1.29 mm (with direct and CBCT measurement, respectively). The deepest concavities were found in the lateral incisors sites (3.15 ± 1.32 mm). There was a statistically significant underestimation of the depth of concavity (0.2 to 0.6 mm) by CBCT. Nevertheless, there is a high statistical correlation (r = 0.8) between the direct and CBCT measurements.
Conclusions:
Within the limitations of this study, it can be concluded that buccal bone concavity is the most prominent at the lateral incisor sites. The CBCT readings were highly correlated but underestimated to the direct measurements.
More Related Videos
05:54Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
08:41Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials
Published on: August 13, 2019