<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Background: Previous studies regarding various types of malocclusions have found correlations between the angle of the base of the skull and prognathism. Aim of the study: This cephalometric study sought to investigate the function of the cranium base angle in different types of malocclusion on a group of Romanian subjects. Materials and methods: Forty-four cephalometric radiographs were selected from patients referred to orthodontic treatment. The cephalometric records were digitized, and with the CorelDRAW Graphics Suite X5 software 22 landmarks have been marked on each radiograph. A number of linear and angular variables were calculated. Results: The angle of the base of the skull was found to be higher in Class II Division 1 subjects compared to the Class I group. The cranial base lengths, N-S and S-Ba, were significantly larger in both categories of Class II malocclusion than in Class I patients, but measurements were comparable in Class I and Class III. The SNA angle showed no considerable variation between Class I subjects and the other groups. SNA-SNP was significantly increased above Class I values in Class II Division1 and Class II Division 2 groups. No significant dissimilarities were observed for these lengths between Class I and Class III patients. Conclusions: The angle of the cranium base (S-N-Ba, S-N-Ar) does not have a major role in the progression of malocclusion. In Angle Class II malocclusion the SNA angle is increased, and SNB is increased in malocclusion Class III. The anterior skull base length is increased in Class II anomalies. The length of the maxillary bone base is increased in Class II malocclusions type; in Class III type of malocclusion the length of the mandible bone is increased.</p></abstract>

Background: Previous studies regarding various types of malocclusions have found correlations between the angle of the base of the skull and prognathism. Aim of the study: This cephalometric study sought to investigate the function of the cranium base angle in different types of malocclusion on a group of Romanian subjects. Materials and methods: Forty-four cephalometric radiographs were selected from patients referred to orthodontic treatment. The cephalometric records were digitized, and with the CorelDRAW Graphics Suite X5 software 22 landmarks have been marked on each radiograph. A number of linear and angular variables were calculated. Results: The angle of the base of the skull was found to be higher in Class II Division 1 subjects compared to the Class I group. The cranial base lengths, N-S and S-Ba, were significantly larger in both categories of Class II malocclusion than in Class I patients, but measurements were comparable in Class I and Class III. The SNA angle showed no considerable variation between Class I subjects and the other groups. SNA-SNP was significantly increased above Class I values in Class II Division1 and Class II Division 2 groups. No significant dissimilarities were observed for these lengths between Class I and Class III patients. Conclusions: The angle of the cranium base (S-N-Ba, S-N-Ar) does not have a major role in the progression of malocclusion. In Angle Class II malocclusion the SNA angle is increased, and SNB is increased in malocclusion Class III. The anterior skull base length is increased in Class II anomalies. The length of the maxillary bone base is increased in Class II malocclusions type; in Class III type of malocclusion the length of the mandible bone is increased.

Original Research. Correlation Between Cranial Base Morphology And Various Types Of Skeletal Anomalies

Department of Orthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy, Str. Gheorghe Marinescu nr. 38 540139, Tîrgu Mureș,

Department of Pedodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy, Str. Gheorghe Marinescu nr. 38 540139, Tîrgu Mureș,

Journal of Interdisciplinary Medicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Background: Previous studies regarding various types of malocclusions have found correlations between the angle of the base of the skull and prognathism. Aim...

Original Research. Correlation Between Cranial Base Morphology And Various Types Of Skeletal Anomalies

Published Online: Mar 31, 2017

Page range: 57 - 61

Received: Mar 01, 2017

Accepted: Mar 06, 2017

DOI: https://doi.org/10.1515/jim-2017-0007

Keywords
malocclusion, cranial base, skeletal anomalies, orthodontics

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Original Research. Correlation Between Cranial Base Morphology And Various Types Of Skeletal Anomalies

Published Online: Mar 31, 2017

Page range: 57 - 61

Received: Mar 01, 2017

Accepted: Mar 06, 2017

DOI: https://doi.org/10.1515/jim-2017-0007

Keywordsmalocclusion, cranial base, skeletal anomalies, orthodontics

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
malocclusion, cranial base, skeletal anomalies, orthodontics