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Root Canal Morphology of Mandibular First Permanent Molars in an Indian Population

机译:印度人口下颌第一恒磨牙的根管形态

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Anin vitrostudy was performed to determine the number of roots, root canals per tooth, root canal configurations, and frequency of isthmi and apical deltas in mandibular first permanent molars in an Indian population. Hundred and fifty mandibular first permanent molars were collected and subjected to clearing technique. The cleared teeth were examined in a stereomicroscope under 7.5x magnifications. The canal configurations were categorized using Vertucci's classification. Overall 94.6% of the mandibular first molars had two roots, and 5.3% had extradistal roots (distolingual root). In addition, 64% of the specimens had three root canals, and 36% had four root canals. The most common canal configurations of mesial and distal roots were Vertucci type IV (54%) and type I (65.3%), respectively. Clinician should be aware of the complex root canal morphology of mandibular first molars among the Indian population before and during the root canal treatment.
机译:进行了一项体外研究,以确定印度人口的下颌第一恒磨牙的根数,每颗牙齿的根管,根管构型以及峡部和根尖三角洲的发生频率。收集一百五十个下颌第一恒磨牙,并进行清理技术。在立体显微镜下以7.5倍的放大倍数检查清洁的牙齿。运河结构使用Vertucci分类进行分类。总体而言,下颌第一磨牙的94.6%具有两个根,而5.3%具有远距根(异齿根)。此外,有64%的标本有3条根管,有36%的标本有4条根管。最常见的近中根和远端根管形态分别为Vertucci IV型(54%)和I型(65.3%)。临床医生应在根管治疗之前和期间了解印度人群中下颌第一磨牙的复杂根管形态。

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