Oral surgery, oral medicine, oral pathology and oral radiology · 2015
Root canal filling materials spread pattern mimicking root fractures in dental CBCT images.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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.
Iikubo Masahiro, Osano Takashi, Sano Tsukasa, Katsumata Akitoshi, Ariji Eiichiro, Kobayashi Kaoru, Sasano Takashi, Wakoh Mamoru, Seki Kenji, Kojima Ikuho, Sakamoto Maya
Аннотация
OBJECTIVE: To clarify the cause of artificial tooth-root fracture lines in cone beam computed tomography (CBCT) images caused by root canal filling materials and to enhance the diagnostic performance of CBCT.
STUDY DESIGN: We analyzed the CBCT images of 18 extracted human teeth (9 upper central incisors and 9 lower premolars) that were filled with a size 50 gutta-percha cone and inserted into tooth sockets in a human skull.
RESULTS: The CBCT images of the incisors displayed artificial lines in the oblique directions, notably the mesiobuccal, distolingual, distobuccal and mesiolingual directions, but only rarely in the cross-directions (buccal, lingual, mesial, and distal). In the premolars, the reverse was true, with lines mainly in the cross-directions, mesial and distal directions particularly. The lines were predominantly at the cervical slice.
CONCLUSIONS: Artifacts resulting from root filling material appear along the long axis of the alveolar bones, and resemble root fractures.
STUDY DESIGN: We analyzed the CBCT images of 18 extracted human teeth (9 upper central incisors and 9 lower premolars) that were filled with a size 50 gutta-percha cone and inserted into tooth sockets in a human skull.
RESULTS: The CBCT images of the incisors displayed artificial lines in the oblique directions, notably the mesiobuccal, distolingual, distobuccal and mesiolingual directions, but only rarely in the cross-directions (buccal, lingual, mesial, and distal). In the premolars, the reverse was true, with lines mainly in the cross-directions, mesial and distal directions particularly. The lines were predominantly at the cervical slice.
CONCLUSIONS: Artifacts resulting from root filling material appear along the long axis of the alveolar bones, and resemble root fractures.