TY - JOUR AU - Shrestha, Sushmita AU - Karki, Smriti AU - Agrawal, Navin AU - Vikram, Mannu AU - Singh, Vimmi AU - Shrestha, Ashish PY - 2018/04/30 Y2 - 2024/03/29 TI - Prevalence of Different Types of Apical Root Canal Morphology and their Treatment Recommendations in an Institute JF - Journal of Nepal Medical Association JA - J Nepal Med Assoc VL - 56 IS - 210 SE - Original Article DO - 10.31729/jnma.3528 UR - http://jnma.com.np/jnma/index.php/jnma/article/view/3528 SP - 616-620 AB - <p class="p1">&nbsp;</p><p class="p2"><span class="s2"><strong>Introduction: </strong></span>Canals can be of different shapes in cross section including round canals, oval canals, long oval canals or ribbon shaped canals. Recesses of nonround canals may not be included in the round preparation created by rotary instruments and thus they remain unprepared. The aim of this study included determination of shape and taper of the apical root canal based on diameter at different levels.</p><p class="p3"><span class="s2"><strong>Methods: </strong></span>This was a cross sectional study which used convenient sampling technique to determine the sample size. Seventy extracted teeth were sectioned horizontally at one, two and three millimeter from the apex using the diamond disc which was observed under trinocular research microscope for the determination of diameter of root canal under 10x magnification.</p><p class="p3"><span class="s2"><strong>Results: </strong></span>The most common canal configuration was oval. The taper of the canals was 25% in mesial root and 20% in distal in bucco-lingual orientation and 14% in mesial root and 15% in distal in mesio-distal orientation.</p><p class="p4"><span class="s2"><strong>Conclusions: </strong></span>The most prevalent canal configuration in this study was non round, however, most of the rotary instruments tend to prepare root canals into round shape making their use questionable. The taper of the root canals was found to be higher in our study than what most of the shaping instruments have to offer. So it would be advisable to consider this fact while selecting instruments and preparing these non-round canals as far as the Nepalese subpopulation is considered.</p> ER -