Cone-beam computed tomography for evaluating root length of maxillary and mandibular anterior teeth in open bite patients.
10.11817/j.issn.1672-7347.2020.190578
- Author:
Chunlan WU
1
,
2
,
3
;
Hua TANG
1
,
2
,
4
;
Jun CHEN
1
,
2
,
5
Author Information
1. Department of Orthodontics, Affiliated Stomatological Hospital, Chongqing Medical University
2. Chongqing Key Laboratory of Oral Diseases and Biomedical Science
3. Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China. wuchunlan@stu.cqmu.edu.cn.
4. Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
5. Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China. chenerye@hospital.cqmu.edu.cn.
- Publication Type:Journal Article
- Keywords:
anterior open bite;
cone-beam CT;
root length;
root resorption
- MeSH:
Cone-Beam Computed Tomography;
Humans;
Incisor/diagnostic imaging*;
Maxilla/diagnostic imaging*;
Open Bite/diagnostic imaging*;
Retrospective Studies
- From:
Journal of Central South University(Medical Sciences)
2020;45(12):1444-1449
- CountryChina
- Language:English
-
Abstract:
OBJECTIVES:To compare the root length of maxillary and mandibular anterior teeth between open bite patients and normal overbite patients via cone-beam computed tomography (CBCT) as well as the root length of anterior teeth in different degree of open bite patients, and to analyze the correlation between the degree of open bite and root length.
METHODS:A total of 106 untreated patients were enrolled retrospectively (53 anterior open bite patients and 53 normal overbite patients).Three-dimensional position of the CBCT image for the patient's teeth was performed using Dolphin software. The median sagittal plane of the tooth was used as the measurement plane, and the line connecting the apical point and the midpoint between the labial and lingual cementoenamel junctions was defined as the root length. Independent
RESULTS:Significant differences were found in the root length of maxillary and mandibular anterior teeth between the open bite group and the normal overbite group (
CONCLUSIONS:The root length of maxillary and mandibular anterior teeth in the open bite patients is shorter than that in the normal overbite patients, and the severer the degree of open bite, the shorter the root length of the mandibular central incisor tends to be. There is a certain relationship between maxillary anterior teeth and the root length of anterior teeth.
