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- Title
VALIDITY OF DIFFERENT METHODS FOR MB-2 CANAL LOCATION IN PERMANENT MAXILLARY MOLARS.
- Authors
RAJPUT, FOZIA; KALHORO, FEROZE ALI; SHAIKH, MOHAMMAD ILYAS; KHATOON, SAFIA
- Abstract
The purpose of this study was to evaluate the effectiveness of naked eye examination and Dental-operating microscope (DOM) examination for the location of second mesiobuccal canal (MB-2) in extracted maxillary first and second molars, considering the sectioning of the tooth as gold standard for the location of MB-2. This was a cross-sectional comparative study. One hundred extracted permanent maxillary first and second molars (50 of each) were stored in 10% neutral formalin. Using high speed headpiece standard endodontic access cavities were prepared. Initially, the mesiobuccal, distobuccal and palatal canals were located. Subsequently, the location of MB-2 canal was attempted by examining the pulp chamber floor with naked eye using only an endodontic explorer and canal confirmed with 10# K-file. MB-2 canal orifice was either located or not located with this method. Teeth in which MB-2 canal was not located were further explored under DOM. Yet again MB-2 canal orifice was either located or not located. Finally the mesiobuccal roots of each tooth were sectioned. The sections were explored with endodontic explorer and 10# K file with the adjunctive use of DOM at a magnification of 12x to decide the real presence of MB-2 canal. 42% and 60% of MB-2 canals in maxillary first molar, 20% and 38% of MB-2 canals in maxillary second molar were detected with naked eye and with DOM examination respectively. While 66% and 42% of MB-2 canals were actually present in maxillary first and second molar respectively as confirmed by gold standard (sectioning of teeth). It is concluded that DOM examination may be more effective for location of the MB-2 canal than naked eye examination.
- Subjects
MICROSCOPES; ENDODONTICS; MAXILLA; MOLARS; DENTAL pulp cavities
- Publication
Pakistan Oral & Dental Journal, 2014, Vol 34, Issue 3, p548
- ISSN
1012-8700
- Publication type
Article