OBJECTIVE: To describe cervical vertebra morphology in subjects with different anteroposterior jaw relationships. MATERIALS AND METHODS: Cone-beam computed tomography images of 31 female subjects aged 19 to 41 years were evaluated. Subjects constituted two groups according to the ANB angle: group 1, skeletal Class II (ANB angle >5); and group 2, skeletal Class III (ANB angle <1). Nine linear measurements and one angular measurement were used to assess the vertebral morphology. The Mann-Whitney U-test was used for statistical analysis. RESULTS: The mean atlas dorsal arch height was significantly shorter in Class II subjects compared with those in Class III (P < .05). The cervical vertebra morphological analysis by cone-beam computed tomography was of comparable precision to three-dimensional computed tomography evaluations. This study confirmed previous findings that Class II subjects have significantly lower atlas dorsal arch heights. CONCLUSION: The height of the atlas dorsal arch of cervical vertebrae is affected by the anteroposterior skeletal pattern.
OBJECTIVE: To describe cervical vertebra morphology in subjects with different anteroposterior jaw relationships. MATERIALS AND METHODS: Cone-beam computed tomography images of 31 female subjects aged 19 to 41 years were evaluated. Subjects constituted two groups according to the ANB angle: group 1, skeletal Class II (ANB angle >5); and group 2, skeletal Class III (ANB angle <1). Nine linear measurements and one angular measurement were used to assess the vertebral morphology. The Mann-Whitney U-test was used for statistical analysis. RESULTS: The mean atlas dorsal arch height was significantly shorter in Class II subjects compared with those in Class III (P < .05). The cervical vertebra morphological analysis by cone-beam computed tomography was of comparable precision to three-dimensional computed tomography evaluations. This study confirmed previous findings that Class II subjects have significantly lower atlas dorsal arch heights. CONCLUSION: The height of the atlas dorsal arch of cervical vertebrae is affected by the anteroposterior skeletal pattern.
Authors: Marco A E Bonfim; André L F Costa; Acácio Fuziy; Michel E L Ximenez; Flávio A Cotrim-Ferreira; Rívea I Ferreira-Santos Journal: Dentomaxillofac Radiol Date: 2015-10-28 Impact factor: 2.419
Authors: Paola Di Giacomo; Valeria Ferrara; Ettore Accivile; Giacomo Ferrato; Antonella Polimeni; Carlo Di Paolo Journal: Pain Res Manag Date: 2018-10-16 Impact factor: 3.037