Studies on apical absorption of permanent teeth
نویسندگان
چکیده
منابع مشابه
Effect of needle insertion depth and apical diameter on irrigant extrusion in simulated immature permanent teeth.
The aim of this study was to compare the amount of irrigant extrusion in simulated immature permanent teeth when the apical diameter and needle insertion depth were varied. Thirty single-rooted maxillary incisors with straight root canals were selected. The root length was standardized to a length of 9 mm. The teeth were divided into two experimental groups according to the degree of apical enl...
متن کاملComparing The Rate of External Apical Root Resorption During Orthodontic Treatment in Posterior Permanent Endodontically Treated and Vital Teeth
Background and Aim : One of the concerns about orthodontic treatment is the external apical root resorption(EARR).Therefore, the aim of this study was to compare the rate of EARR in posterior permanent endodontically treated and vital teeth after orthodontic treatment. Materials and methods: This observational and retrospective study was performed on 112 roots in 28 patients in the age range o...
متن کاملThe formation of apical delta of the permanent teeth in dogs.
To determine the process of formation of apical delta, a histological study on the permanent teeth was carried out in dogs. A litter of 7 clinically healthy beagle dogs and 33 adult dogs (4- to 15- year-old) of 12 breeds with periodontal disease were used for the experiments. Teeth extracted from 6-,7-,8- and 9-month-old beagles were sectioned and stained with HE solution. Tooth roots obtained ...
متن کاملEffect of Post-Space Preparation on Apical Seal of Endodontically Treated Teeth
ABSTRACT By restoration of pulpally exposed teeth with root canal therapy edentulous areas and neighbouring teeth displacement can be avoided. Prefabricated posts may be used for crown restoration of these teeth. For the preparation of root canal for post placement, Gutta percha should be removed by means of mechanical, thermal and chemical agents. To study the amount of apical leakage in vit...
متن کاملApical Closure of Nonvital Permanent Teeth: 15 Months Follow-up Study of Four Cases
Obtaining a complete seal of the root canal system is a major problem in performing root canal treatment in nonvital teeth with incomplete root development and wide open apices. The aim was to study apexification using mineral trioxide aggregate (MTA), clinically and radiographically over a period of 15 months. MTA was used in four cases of teeth with incomplete root development in order to ach...
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ژورنال
عنوان ژورنال: KOKUBYO-GAKKAI-ZASSHI
سال: 1930
ISSN: 0300-9149,1884-5185
DOI: 10.5357/koubyou1927.4.2_122