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<p>This study aimed to analyze the prevalence of <i>radix molaris</i> in a subpopulation of Brazil’s Northeast region using cone-beam computed tomography (CBCT). A total of 1092 CBCT exams and 3315 teeth (1541 first and 1774&#xa0;s mandibular molars) were analyzed in axial, coronal, and sagittal planes using the PreXion 3D Viewer software. The teeth morphologies were analyzed and the occurrence of <i>radix molaris</i>, location, tooth, type (<i>entomolaris</i> and <i>paramolaris</i>) and patients’ gender were recorded. The data were expressed in the form of absolute and percentage frequencies and statistically analyzed using Pearson’s Chi-square test (<i>P</i> &lt; .05). Fifty-nine patients (5.40%) and 71 teeth (2.14%) presented <i>radix molaris</i>, which was most frequently identified in first mandibular molars (2.92%) than in second mandibular molars (1.47%) (<i>P</i> &lt; .05). No significant differences in the occurrence of <i>radix molaris</i> considering the gender of patients (36 women [5.22%] and 23 men [5.72%)] were observed (<i>P</i> &gt; .05). It was observed that 92.96% of the teeth affected by the anatomical variation studied were classified as <i>radix entomolaris.</i> The bilateral prevalence of <i>radix molaris</i> was approximately 20.34% of the cases involving only first molars (<i>P</i> &lt; .05). The occurrence of <i>radix molaris</i> was higher in first mandibular molars, regardless of the gender of patients.</p>

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Prevalence of radix molaris in mandibular molars of a subpopulation of Brazil’s Northeast region: a cross-sectional CBCT study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月2日

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  • Yasmym Martins Araújo de Oliveira,
  • Maria Clara Mendes Gomes,
  • Maria Fernanda da Silva Nascimento,
  • Ricardo Machado,
  • Danna Mota Moreira,
  • Hermano Camelo Paiva,
  • George Táccio de Miranda Candeiro

摘要

This study aimed to analyze the prevalence of radix molaris in a subpopulation of Brazil’s Northeast region using cone-beam computed tomography (CBCT). A total of 1092 CBCT exams and 3315 teeth (1541 first and 1774 s mandibular molars) were analyzed in axial, coronal, and sagittal planes using the PreXion 3D Viewer software. The teeth morphologies were analyzed and the occurrence of radix molaris, location, tooth, type (entomolaris and paramolaris) and patients’ gender were recorded. The data were expressed in the form of absolute and percentage frequencies and statistically analyzed using Pearson’s Chi-square test (P < .05). Fifty-nine patients (5.40%) and 71 teeth (2.14%) presented radix molaris, which was most frequently identified in first mandibular molars (2.92%) than in second mandibular molars (1.47%) (P < .05). No significant differences in the occurrence of radix molaris considering the gender of patients (36 women [5.22%] and 23 men [5.72%)] were observed (P > .05). It was observed that 92.96% of the teeth affected by the anatomical variation studied were classified as radix entomolaris. The bilateral prevalence of radix molaris was approximately 20.34% of the cases involving only first molars (P < .05). The occurrence of radix molaris was higher in first mandibular molars, regardless of the gender of patients.