Prevalence of torus mandibularis in Al Muthanna province, Iraq
Keywords:
Al Muthanna, gender, Iraq, mandibular tori, prevalenceAbstract
Background: Torus mandibularis is a multifactorial hyperplastic bone overgrowth of lingual aspect of premolar region. It can cause discomfort in some cases. Its occurrence is influenced by a mixture of genetic and environmental factors.
Objectives: To assess the prevalence of torus mandibularis in terms of gender, age, shape, size, and location in patients attending the Teaching Clinic of the College of Dentistry of Al Muthanna University.
Methods: This cross-sectional study included five hundred and twenty three patients. Their chief complaint, age, sex, and presence of torus mandibularis were collected, and analyzed.
Results: Thirty two out of 523 patients presented torus mandibularis, 19 females and 13 males. Torus mandibularis was reported in 2 patients of the age group <20, 18 of the age group 21-40 years, 9 patients of the 41-60 age group, and 3 patients of the ≤61 years age group. It appeared in flat, spindle and nodular shapes. The percentage of flat shapes was high in females 34.37% and males 18.75%. The highest percentage of torus mandibularis was found in premolar region 16, followed by molar region 9, 5 in premolar-molar, and 2 in incisor-premolar areas.
Conclusion: Low prevalence of torus mandibularis was observed in this study. Torus mandibularis cases prevailed in the 21-40 year age group, and appeared as flat, medium-sized growths in the premolar region. The authors recommend future studies to identify variant markers across the genome in Iraqi patients with torus mandibularis.
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Copyright (c) 2026 Mohammed A-Alsmael, Abdulazeez Muayad Abdulkarem, Dhuha Najm Abdulhussein, Karima Akool Al-Salihi

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