بررسی موارد وجود کانال دوم در ریشه مزیوباکال مولرهای بالا

Normal 0 false false false EN-US X-NONE 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. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal" mso-tstyle-rowband-size:0 mso-tstyle-colband-size:0 mso-style-noshow:yes mso-style-priority:99 mso-style-qformat:yes mso-style-parent:"" mso-padding-alt:0cm 5.4pt 0cm 5.4pt mso-para-margin-top:0cm mso-para-margin-right:0cm mso-para-margin-bottom:10.0pt mso-para-margin-left:0cm line-height:115% mso-pagination:widow-orphan font-size:11.0pt font-family:"Calibri","sans-serif" mso-ascii-font-family:Calibri mso-ascii-theme-font:minor-latin mso-hansi-font-family:Calibri mso-hansi-theme-font:minor-latin mso-bidi-font-family:Arial mso-bidi-theme-font:minor-bidi}