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BMC Oral Health
Published in: BMC Oral Health 1/2023

Open Access 01-12-2023 | Research

Effect of the vertical facial pattern on the developmental relationship between the nasal bone and maxillary central incisors

Authors: Jianwei Shi, Mohammed Sultan Al-Ak’hali, Dingjun Cai, Qiutong Guo, Yuming Cao, Maged S. Alhammadi, Mubarak Ahmed Mashrah, Yang Yang

Published in: BMC Oral Health | Issue 1/2023

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Abstract

Background

This study aimed to investigate the effect of vertical facial patterns on the developmental relationship between the nasal bone and maxillary central incisors.

Methods

In this retrospective comparative study, the lateral cephalograms of 213 subjects (51 Males, 162 Females) with skeletal Class I malocclusion (aged 18–32 years) were classified into three equal groups: (1) hyperdivergent, (2) normodivergent, and (3) hypodivergent facial patterns based on the mandibular plane inclination (S–N/Go-Me). Several sets of measurements were extracted: (1) gradient and length of the nasal bone and maxillary central incisor, (2) the distance from apex and root of the nasal bone, and (3) maxillary central incisor to the true perpendicular from the digitized lateral cephalograms. The significance level was considered at P < 0.05.

Results

The inclination angle and length between nasal bone and maxillary central incisor were positively correlated independent of vertical facial type. The inclination angle of the nasal bone in the hypodivergent group was significantly larger than the other two vertical facial patterns. The inclination angle of the maxillary central incisor increased successively in the hyperdivergent, normodivergent, and hypodivergent groups. The length of the nasal bone in the hyperdivergent group was significantly longer than that in the hypodivergent and normodivergent groups. The maxillary central incisor length in the hyperdivergent group was significantly longer than in the hypodivergent group.

Conclusion

A correlation between nasal bone and maxillary central incisors during the growth and development of the maxillofacial region was found. In Class I malocclusion subjects, hypodivergent patients were more likely to have a prominent and relatively short nasal bone and maxillary central incisors and vice versa.
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Metadata
Title
Effect of the vertical facial pattern on the developmental relationship between the nasal bone and maxillary central incisors
Authors
Jianwei Shi
Mohammed Sultan Al-Ak’hali
Dingjun Cai
Qiutong Guo
Yuming Cao
Maged S. Alhammadi
Mubarak Ahmed Mashrah
Yang Yang
Publication date
01-12-2023
Publisher
BioMed Central
Published in
BMC Oral Health / Issue 1/2023
Electronic ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-023-02927-x

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