ArticleBMC oral health2024
Dentoalveolar characteristics in subjects with different anteroposterior relationships: a retrospective cross-sectional Cone-Beam Computed Tomography study.
Article in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Cephalometric evaluation of maxillary central incisor crown-root morphology in different skeletal malocclusion.BMC research notes · 2026Article
- Assessment of collum angle and alveolar bone plate thickness relative to tooth inclination in central incisors using CBCT: a retrospective cross-sectional study.BMC oral health · 2026Article
- The Therapeutic Approaches Dealing with Malocclusion Type III-Narrative Review.Life (Basel, Switzerland) · 2025Review
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3 authors.
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Abstract
backgroundThe collum angle, tooth dimensions, root length, and alveolar bone thickness have a significant impact on orthodontic diagnosis and treatment planning. The boundaries of orthodontic tooth movement are determined by alveolar bone thickness and dimensions while the collum angle determines the appropriate positioning of the root relative to the cortical plate. This study aimed to compare the collum angle, crown dimensions, root length, and alveolar bone thickness of the upper and lower incisors, canines, and premolars in subjects with varying anteroposterior relationships.
methodsCone Beam Computed Tomography (CBCT) images of 89 patients (178 teeth/tooth type) were included in the study. The patients were divided into 4 subgroups according to the incisor relationship. Group 1: Class I (64/tooth type), Group 2: Class II Div 1 (28/ tooth type), Group 3: Class II Div 2 (28/tooth type), and Group 4: Class III (58/ tooth type). The following variables were measured using Carestream CS 3D imaging software on coronal, sagittal, oblique, and reconstructed panoramic views: collum angle, mesiodistal crown width, crown height and thickness, root length, and alveolar bone thickness.
resultsIn Class II Div 2 subjects, the collum angles of the upper central and upper lateral incisors were increased. Class III subjects had an increased root length of the upper first premolars, upper central incisors, and lower first and second premolars compared to other groups. In Class II Div 2 subjects, the mesiodistal crown widths were increased in the lower canines compared to Class I and Class III and in the lower central incisors compared to Class II Div 1 and Class III, the height of the crowns was increased in the upper lateral incisors compared to Class III and Class I and in the upper central incisors compared to Class I and Class II Div 1, the buccolingual thickness of teeth was increased in the upper central incisors compared to Class I, Class II Div 1, and Class III and the alveolar bone thickness was increased compared to other groups.
conclusionClass II Div 2 subjects exhibited increased collum angle, large crown width, height, and thickness, and increased alveolar bone thickness. Class III subjects had a longer root length compared to other groups.
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