J Neurol Surg B Skull Base 2021; 82(04): 484-490
DOI: 10.1055/s-0040-1713774
Original Article

3D Evaluation of the Relationship between Different Vertical Growth Patterns and Cranial Base Angulations

Mehmet Ugurlu
1  Department of Orthodontics, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir, Turkey
,
Rıdvan Oksayan
1  Department of Orthodontics, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir, Turkey
,
Ibrahim Sevki Bayrakdar
2  Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir, Turkey
,
Fatih Kahraman
3  Department of Orthodontics, Private Clinic, Istanbul, Turkey
,
Ilhan Metin Dagsuyu
1  Department of Orthodontics, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir, Turkey
,
Mehmet Aydın
1  Department of Orthodontics, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir, Turkey
,
Kaan Orhan
4  Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey
› Author Affiliations
Funding None.

Abstract

Objective This study aimed to compare cranial base angulations in subjects with high-angle, low-angle, and normal-angle vertical growth patterns using cone beam computed tomography (CBCT).

Design This study is a retrospective clinical research.

Settings This study was carried out at the Dentistry Faculty of Eskisehir Osmangazi University.

Participants According to skeletal vertical face growth patterns, 78 subjects (48 females and 30 males, average age: 13.19 ± 1.73 years) were divided equally into three groups: high angle, low angle, and normal angle groups.

Main Outcome Measures Cephalometric images were derived from CBCT, and patients were classified according to the SN-GoGn angle (sella-nasion, gonion gnathion angle). Sagittal, axial, and coronal cranial base angulations were measured in three-dimensional (3D) CBCT images. Data were analyzed using the Kolmogorov–Smirnov normality, Kruskal–Wallis, and Mann-Whitney U statistical tests.

Results There were statistically significant differences between the low-angle and high-angle groups according to sagittal cranial base angulation parameters (p = 0.01). Conversely, there were no statistically significant differences between vertical facial growth patterns according to coronal and axial cranial angle variables (p > 0.05).

Conclusion According to the study results, there were no effects of cranial base angulations in two planes (coronal and axial) on different vertical skeletal growth patterns. In the sagittal cranial base angulation parameter, the high-angle group showed greater angulation values than the low-angle group. CBCT may be helpful for evaluating, diagnosing, and predicting 3D cranial base differences.



Publication History

Received: 25 November 2019

Accepted: 27 April 2020

Publication Date:
05 August 2020 (online)

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