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
Tooth movement into distraction regenerate: when should we start?
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.
El Sharaby Fouad Aly, El Bokle Nader Nabil, El Boghdadi Dalia Mohamed, Mostafa Yehya Ahmed
Аннотация
INTRODUCTION: The aim of this study was to evaluate clinically, radiographically, and histologically orthodontic tooth movement into bone regenerate after mandibular distraction osteogenesis to elucidate the optimal timing for initiating tooth movement.
METHODS: The study sample consisted of 9 male mongrel dogs. An average edentulous space of 9 mm was created by using a custom-made bone-borne distractor fixed on the mandibular corpus of each dog. The dogs were equally divided into 3 groups, and tooth movement began into the distraction gap after 1, 3, or 6 weeks of consolidation. The rate and type of tooth movement as well as the adverse tissue reactions (root resorption and crestal bone loss) were evaluated.
RESULTS: Radiographic and histologic analyses showed analogous adverse tissue reactions in association with early tooth movement into the regenerate bone. Furthermore, the rate and type of tooth movement were variable in the 3 groups.
CONCLUSIONS: Early tooth movement into the distraction regenerate is not recommended because it could result in adverse tissue reactions. Moreover, radiographic examination of the distraction regenerate is advisable and could be used as a guide before starting tooth movement.
METHODS: The study sample consisted of 9 male mongrel dogs. An average edentulous space of 9 mm was created by using a custom-made bone-borne distractor fixed on the mandibular corpus of each dog. The dogs were equally divided into 3 groups, and tooth movement began into the distraction gap after 1, 3, or 6 weeks of consolidation. The rate and type of tooth movement as well as the adverse tissue reactions (root resorption and crestal bone loss) were evaluated.
RESULTS: Radiographic and histologic analyses showed analogous adverse tissue reactions in association with early tooth movement into the regenerate bone. Furthermore, the rate and type of tooth movement were variable in the 3 groups.
CONCLUSIONS: Early tooth movement into the distraction regenerate is not recommended because it could result in adverse tissue reactions. Moreover, radiographic examination of the distraction regenerate is advisable and could be used as a guide before starting tooth movement.
Предметные рубрики MeSH
Alveolar Bone LossAnimalsBicuspidBone DensityBone PlatesBone RegenerationBone ScrewsCalcification, PhysiologicDental CementumDentinDogsEquipment DesignExternal FixatorsMaleMandibleOrthodontic AppliancesOsteoblastsOsteoclastsOsteogenesisOsteogenesis, DistractionOsteotomyPeriodontal LigamentRadiography, BitewingRoot ResorptionTime FactorsTooth Movement Techniques