A. Vahid , Mr. Hamidi ,
Volume 8, Issue 2 (9 1995)
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EN-US
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AR-SA During
the past century, valuable studies were done on maxillary mesiobuccal canals
morphology. In general, knowing pulp-chamber floor is a great aid in finding
extra root canals. Findings of invivo and invitro canals are highly different
which implies difficulties in finding canals in clinical treatments. Therefore
in this study by modifying access cavity preparation methods possible orifice
areas are introduced. In an invitro analysis, 29% of first maxillary molars
canals were found Type 3 and 35% Type 2 in radiographic view of mesiodistal
aspect. In intra oral analysis, by modifying access cavity and removing mesial
wall dentin, a high percent of these orifices are discovered.