نتایج جستجو برای: tooth root formation
تعداد نتایج: 734642 فیلتر نتایج به سال:
AIM To identify early clinical variables that are most predictive of treatment outcome and to develop a model that will allow prediction of treatment outcomes based on these variables. STUDY DESIGN AND METHODS A dental trauma database was used to randomly identify patients who had received treatment for avulsed teeth between 1998 and 2007. A data extraction form was designed and completed for...
Traumatized tooth rendered nonvital (pulpal necrosis) before the final stage of the root development results in a short root with a wide canal that can be either divergent or parallel. Although the root canal therapy is the choice of treatment for a nonvital tooth, the above mentioned abnormal root anatomy does not permit a predictable outcome. Mainly, it is not feasible to achieve a good apica...
Abstract Introduction: dilaceration is a disturbance in tooth formation that produces a sharp bend or curve in the tooth. this anomaly has a negative effect on the treatment of root canals, orthodontics and surgery. The aim of this study was to determine the prevalence of root dilaceration using Cone Beam Tomography (CBCT). Materials and Methods:In this study, a total of 206 CBCT images(5434t...
FELDMAN, L. J . , and J. G. TORREY. 1975. The quiescent center and primary vascular tissue pattern formation in cultured roots of Zen. Can. J . Bot. 53: 2796-2803. Roots of Zea mays cv. Kelvedon 33 were cultured in nutrient media supplemented with varying concentrations of sucrose. In some instances an individual root was grown successively for periods of time in several different concentration...
OBJECTIVE To test the hypothesis that the administration of aspirin, acetaminophen, meloxicam, celecoxib, and prednisolone have no effect on root resorption and tooth movement. MATERIALS AND METHODS A mesial force of 50 g was applied to the left maxillary first molars of sixty 10-week-old male Wistar rats using nickel titanium closed coil springs attached to the cervical area of the incisors....
OBJECTIVE To test the hypothesis that there is no difference in the effect of different continuous moderate to very heavy forces on root resorption or amount of tooth movement. MATERIALS AND METHODS In the study, 10, 25, 50 and 100 g mesial force were applied to the maxillary first molars of rat using nickel titanium closed-coil springs for 3 days, 14 days, and 28 days. The molars were extrac...
The purpose of this article was reviewing the literature related to the mutual effects of endodontics and orthodontics on each other providing documented information that can be used by dentists in clinical practice. The effect of orthodontic treatment on the dental pulp and its role in root resorption, the influence of previous trauma to the tooth and endodontic treatment in orthodontic tooth ...
Benign cementoblastoma is a rare ectomesenchymal odontogenic tumor that originates from the root of the tooth and that is characterized by the formation of cementum-like tissue. A 60-year old man was referred to us complaining of pain in his right jaw. The patient underwent TC dental scan of the mandible, which highlighted the presence of three well-circumscribed, round, unilocular neoformation...
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