The Angle orthodontist · 2014
Three-dimensional evaluation of the relationship between jaw divergence and facial soft tissue dimensions.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Rongo Roberto, Antoun Joseph Saswat, Lim Yi Xin, Dias George, Valletta Rosa, Farella Mauro
Аннотация
OBJECTIVE: To evaluate the relationship between mandibular divergence and vertical and transverse dimensions of the face.
MATERIALS AND METHODS: A sample was recruited from the orthodontic clinic of the University of Otago, New Zealand. The recruited participants (N = 60) were assigned to three different groups based on the mandibular plane angle (hyperdivergent, n = 20; normodivergent, n = 20; and hypodivergent, n = 20). The sample consisted of 31 females and 29 males, with a mean age of 21.1 years (SD ± 5.0). Facial scans were recorded for each participant using a three-dimensional (3D) white-light scanner and then merged to form a single 3D image of the face. Vertical and transverse measurements of the face were assessed from the 3D facial image.
RESULTS: The hyperdivergent sample had a significantly larger total and lower anterior facial height than the other two groups (P < .05), although no difference was found for the middle facial height (P > .05). Similarly, there were no significant differences in the transverse measurements of the three study groups (P > .05). Both gender and body mass index (BMI) had a greater influence on the transverse dimension.
CONCLUSIONS: Hyperdivergent facial types are associated with a long face but not necessarily a narrow face. Variations in facial soft tissue vertical and transversal dimensions are more likely to be due to gender. Body mass index has a role in mandibular width (GoGo) assessment.
MATERIALS AND METHODS: A sample was recruited from the orthodontic clinic of the University of Otago, New Zealand. The recruited participants (N = 60) were assigned to three different groups based on the mandibular plane angle (hyperdivergent, n = 20; normodivergent, n = 20; and hypodivergent, n = 20). The sample consisted of 31 females and 29 males, with a mean age of 21.1 years (SD ± 5.0). Facial scans were recorded for each participant using a three-dimensional (3D) white-light scanner and then merged to form a single 3D image of the face. Vertical and transverse measurements of the face were assessed from the 3D facial image.
RESULTS: The hyperdivergent sample had a significantly larger total and lower anterior facial height than the other two groups (P < .05), although no difference was found for the middle facial height (P > .05). Similarly, there were no significant differences in the transverse measurements of the three study groups (P > .05). Both gender and body mass index (BMI) had a greater influence on the transverse dimension.
CONCLUSIONS: Hyperdivergent facial types are associated with a long face but not necessarily a narrow face. Variations in facial soft tissue vertical and transversal dimensions are more likely to be due to gender. Body mass index has a role in mandibular width (GoGo) assessment.