American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics · 2011
Dental age assessment in patients with maxillary canine displacement.
СтатьяПоддержка исследования: вне правительства СШАНазвание 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.
Naser Dua'a H, Abu Alhaija Elham S, Al-Khateeb Susan N
Аннотация
INTRODUCTION: The aims of this study were to investigate the relationship between dental age and maxillary canine displacement with 2 methods, to study differences in dental development between the displaced and nondisplaced sides, and to investigate sex differences in dental development in the studied groups.
METHODS: Two hundred forty subjects were recruited for this study. They were divided into 2 groups: the palatally displaced canine group (87 girls, 33 boys) and the buccally displaced canine group (81 girls, 39 boys). Dental ages were assessed by using the 2 methods.
RESULTS: Delayed dental development was associated with subjects with palatally displaced canines only, whereas those with buccally displaced canines had comparable dental development to that of the control group. Sex differences in the 3 groups were found; girls had more pronounced delayed dental development in all groups according to both methods. With unilateral palatally displaced canines, the displacement side showed delayed dental development compared with the side of nondisplacement (P = 0.002). The development rates of the displaced and nondisplaced sides were comparable in the subjects with unilateral buccally displaced canines.
CONCLUSIONS: Palatal and buccal canine displacements are 2 distinct entities; delayed dental development plays a role in the etiology of palatal canine displacement, but not in buccal canine displacement.
METHODS: Two hundred forty subjects were recruited for this study. They were divided into 2 groups: the palatally displaced canine group (87 girls, 33 boys) and the buccally displaced canine group (81 girls, 39 boys). Dental ages were assessed by using the 2 methods.
RESULTS: Delayed dental development was associated with subjects with palatally displaced canines only, whereas those with buccally displaced canines had comparable dental development to that of the control group. Sex differences in the 3 groups were found; girls had more pronounced delayed dental development in all groups according to both methods. With unilateral palatally displaced canines, the displacement side showed delayed dental development compared with the side of nondisplacement (P = 0.002). The development rates of the displaced and nondisplaced sides were comparable in the subjects with unilateral buccally displaced canines.
CONCLUSIONS: Palatal and buccal canine displacements are 2 distinct entities; delayed dental development plays a role in the etiology of palatal canine displacement, but not in buccal canine displacement.