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Open Access 28-06-2023 | Orthopantomogram | Original Article

Association between craniofacial patterns and third molar agenesis in orthodontic patients

Authors: Dr. Eva Paddenberg, Dr. Alice Correa Silva-Souza, Dr. Ariane Beatriz Blancato, Prof. Dr. César Penazzo Lepri, Prof. Dr. Dr. Peter Proff, Prof. Dr. Erika Calvano Küchler, Priv.-Doz. Dr. Dr. Christian Kirschneck

Published in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie

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Abstract

Purpose

Third molar agenesis (TMA) is the most common craniofacial anomaly and has been associated with craniofacial patterns in different populations. Therefore, the aim of this retrospective cross-sectional study was to assess a possible association between craniofacial patterns and TMA in German orthodontic patients.

Methods

Patients undergoing orthodontic treatment with dental records including anamnesis, pretreatment lateral cephalograms and orthopantomograms were evaluated. Cephalometric analyses were conducted digitally and lines, angles and proportions were measured to investigate craniofacial morphology. Skeletal classes were determined by the individualised Wits appraisal and ANB angle. The TMA was identified with the help of orthopantomograms. Patients showing agenesis of at least one third molar were included in the TMA group. Statistical analysis was performed to assess the association between TMA and craniofacial patterns (α of p ≤ 0.05).

Results

A total of 148 patients were included, 40 (27.0%) presented at least one missing tooth (TMA group) and 108 (73.0%) showed full dentition (control group). Skeletal class determined by the individualised Wits appraisal revealed statistical significance between the TMA and control groups (p = 0.022), in which TMA patients were 11 times more likely to present with an individualised skeletal class III (odds ratio 11.3, 95% confidence interval 1.7–139.5). Skeletal cephalometric analysis revealed no statistical differences between TMA and control groups for any further angular, linear and proportional parameters.

Conclusion

Third molar agenesis was associated with skeletal class III determined by the individualised Wits appraisal.
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Metadata
Title
Association between craniofacial patterns and third molar agenesis in orthodontic patients
Authors
Dr. Eva Paddenberg
Dr. Alice Correa Silva-Souza
Dr. Ariane Beatriz Blancato
Prof. Dr. César Penazzo Lepri
Prof. Dr. Dr. Peter Proff
Prof. Dr. Erika Calvano Küchler
Priv.-Doz. Dr. Dr. Christian Kirschneck
Publication date
28-06-2023
Publisher
Springer Medizin
Published in
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie
Print ISSN: 1434-5293
Electronic ISSN: 1615-6714
DOI
https://doi.org/10.1007/s00056-023-00484-0