Diagnosis of transverse problems Chung Chun-Hsi   Seminars in Orthodontics  Volume 25, Issue 1, Pages 16-23 (March 2019) DOI: 10.1053/j.sodo.2019.02.003 Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure1 A coronal section on first molars of CBCT image of a subject with normal occlusion. The maxillary molars show buccal inclination and mandibular molars show lingual inclination. Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure2 A coronal section on first molars of CBCT image of the same subject. The roots of maxillary and mandibular molars are positioned in the center of the medullary bones. Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure3 CBCT images of a 12years 9 months girl. (A) Pre-treatment radiograph showing transverse skeletal deficiency and significant dental compensations. (B) In diagnosis and treatment planning, when maxillary and mandibular molars were de-compensated, the molars resulted in posterior crossbite, (C) Post-expansion radiograph showing corrected molar relationship. Patient was expanded with a TADs supported RPE. (Courtesy of Dr. Norman Boucher). Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure4 Clinical photos and CBCT images of a patient with no posterior crossbite but with significant dental compensations due to wide maxilla. (A, B) Buccal views of the dentition, (C) Coronal section on first molars, (D) Coronal section on first premolars. Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure5 Intraoral photographs and panoramic x-ray of an adult patient with edge-to-edge bite on posterior teeth. No significant periodontal findings were found except root prominence on palpation. Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions

Figure6 CBCT images of an adult. (A) Coronal section on the first molars, (B) Buccal view on the left side. Seminars in Orthodontics 2019 25, 16-23DOI: (10.1053/j.sodo.2019.02.003) Copyright © 2019 Elsevier Inc. Terms and Conditions