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Unusual pathways—From frustration to fascination

Open Journal of Stomatology 2012年第2期2卷 77-80页

作者： Promila Verma Rakesh Yadav Anil Chandra aseem prakash tikku Chhatrapati Shahuji Maharaj Medical University Lucknow India

The main objectives of root canal treatment are thorough shaping and cleaning of all pulp spaces and its complete obturation with an inert filling material. The presence of untreated canal may be a reason for failure of endodontic therapy. To achieve satisfactory root canal therapy, a proper and in-depth knowledge of complex and abnormal root canal morphology is essential.

关键词： Root Canal Anatomy Mandibular Molar Multiple Canals

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A comparative evaluation of dentin caries removal with polymer bur and conventional burs—An <i>in vitro</i>study

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Open Journal of Stomatology 2012年第1期2卷 12-15页

作者： Vijay Kumar Shakya Anil Chandra aseem prakash tikku Promila Verma Rakesh Kumar Yadav Department of Conservative Dentistry and Endodontics Chhatrapati Shahuji Maharaj Medical University Lucknow India

Aim: To evaluate the comparative efficacy of Polymer bur (Smartprep) and Conventional burs (Carbide bur & Diamond Points) in selective Dentin caries removal. Materials and method: 15 freshly extracted carious human premolars and molars were selected for this study. These teeth were split in the center of carious lesion, in order to obtain two corresponding half. Thus 30 samples were prepared in this way. These were randomly divided in to 3 groups of 10 samples each. Group 1: The carious portion of these samples was excavated with the help of polymer bur Smartprep (SS White). Group 3: Prepared with Tungsten carbide round bur (No. 018). Group 3: Prepared with the help of Diamond points (No. 018). The period of time involved in this process is measured. After excavation of all carious lesions, a longitudinal section from mid most part of lesion was obtain with the help of diamond disc at slow speed. After staining with caries detector dye “Seek”, the sections were subjected to histological evaluation under stereomicro-scope. The thickness of remaining caries is measured in more or less than 1 mm. Results: The difference in grading of remaining carious dentin between Polymer bur and Conventional burs were statistically non- significant, but Polymer bur taken more time in comparison to Conventional burs. Conclusion: Smartprep bur is more conservative in selectively dentin caries removal than Conventional burs but same time it is more time consuming than Conventional burs.

关键词： Polymer Bur (Smartprep) Carbide Bur & Diamond Points Dentin Caries PBS Buffer

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