OBJECTIVETo investigate the correlation between tongue size and openbite.

METHODSThe tongue size of the openbite patients and the subjects with normal occlusion was measured by B-type ultrasonic imaging respectively. The tongue size of the openbite patients and the subjects with normal occlusion was compared.

RESULTSThe tongue size in openbite group was larger than in normal occlusion group. The difference was statistically significant.

CONCLUSIONSTongue size was related to the openbite.

Adolescent ; Adult ; Child ; Humans ; Open Bite ; diagnostic imaging ; pathology ; Sensitivity and Specificity ; Tongue ; diagnostic imaging ; Ultrasonography ; methods

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.
Cone-Beam Computed Tomography ; Humans ; Incisor/diagnostic imaging* ; Maxilla/diagnostic imaging* ; Open Bite/diagnostic imaging* ; Retrospective Studies