نسبة الأقنية الجذرية ذات الشكل (C)‎ في الأرحاء الثانية السفلية عند عينة من المجتمع السوري : دراسة مخبرية-شعاعية

الملخص EN

Background &Objective: Recognition of unusual variation in canal configuration is critical because it has been established that the root with a single tapering canal and apical foramen is the exception rather than the rule .The early recognition of these configuration facilitates cleaning, shaping, and obturation of the root canal system.

The aim of this study was to determine the frequency of c- shape canals in mandibular second molars in Syria sub-population and to establish a classification for the most common configurations.

Materials and methods: One hundred and eighty extracted mandibular second molars were examined by perapical X-ray radiography and clinical examination and categorized according to classification of Fan 4112.

Results: Of the 180 molars, 40 molars (22.2 % )exhibited c-shape canals.

2 molars (5% ) were classified as category1,(the shape was an interrupted c with no separation ).

23 molars2)5.25 %) were classified as category II (the canal shape resembled as semicolon resulting from discontinuation of the c outline .

12 molars )01 % ) were classified as category Ш(2 or3 separate canals ).

2 molars (7.5% ) were classified as category Iv(only one round or oval canal in the cross section ).

Conclusion :There was high prevalence of c-shape root canal in mandibular second molars of Syrian population which vary in their anatomical configuration.