نتایج جستجو برای: pulp chamber
تعداد نتایج: 61147 فیلتر نتایج به سال:
Purpose: This in vitro study compared the temperature rise in the pulp chamber during fabrication of provisional resinous restorations on three types of teeth by a direct method. Materials and Methods: The tip of a thermocouple was positioned into the pulp chamber of thirty intact extracted human teeth. Then the teeth were divided into three different tooth groups (incisor, premolar, molar) and...
OBJECTIVE The aim of this study was to examine the temperature changes in the pulp chamber during cavity preparation with the Er:YAG laser (2940 nm) with a very short pulse (VSP). MATERIALS AND METHODS Nine groups of 10 intact molars each were used. One root of each sample was amputated and a thermocouple was inserted into the chamber. Class V cavity preparation in enamel was performed, and t...
BACKGROUND At the end of fixed orthodontic treatment, the remnant of adhesive should be eliminated from the tooth surface. The purpose of this study was to compare the effect of three methods of removing adhesive on enamel surface roughness, dental pulp temperature, and also on the time spent. MATERIALS AND METHODS The brackets on 90 extracted teeth were debonded using bracket removal pliers....
UNLABELLED The purpose of the study was to compare temperature rise during polymerisation of resin based composites (RBCs) with two LED light curing units (LCUs) compared to a halogen control light. METHODS Forty-five extracted molars, patients aging 11-18 years were used. Thermocouples (TCs) were placed in contact with the roof of the pulp chamber using a 'split-tooth' method. Teeth were pla...
Pulpal disease, specifically dental pulpitis, is triggered by exogeneous stimuli from cariogenic bacteria or traumatic injury. The specific host defense in the dental pulp is regulated by the innate and adaptive immunity, of which the pulp-dentin complex odontoblasts play an essential role in the early stage of the dental immune response. It has been reported that the NLRP3 inflammasome is expr...
چکیده ندارد.
taurodontism is a rare dental anomaly in which the involved tooth has an enlarged and elongated body and pulp chamber with apical displacement of the pulpal floor. endodontic treatment of these teeth is challenging, because it is hard to identify the number of root canals. in this article a case of bilateral involvement of maxillary first molars is presented. endodontic treatment of right maxil...
Studies have shown the cariostatic effect of Er,Cr:YSGG (2.78 mm) laser irradiation on human enamel and have suggested its use on caries prevention. However there are still no reports on the intrapulpal temperature increase during enamel irradiation using parameters for caries prevention. The aim of this in vitro study was to evaluate the temperature variation in the pulp chamber during human e...
The purpose of this study was to evaluate the use of artificial teeth for endodontic teaching. A questionnaire was prepared and submitted to 18 professors of Endodontics from different Brazilian universities to evaluate the following features of five cloudy resin artificial teeth: internal and external anatomy; coronal chambers regarding their size, shape and canal path; root canal regarding th...
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