Prevalence and pattern of presentation of mandibular and palatine tori in a Nigerian population.
No Thumbnail Available
Nig Dent J
Aim: To determine the prevalence and pattern of presentation of mandibular and palatal tori in a Nigerian population. Material and methods: A prospective observational study of mandibular and palatal tori among adolescents and adults subjects, attending dental/oral and maxillofacial clinics of the Lagos University Teaching Hospital, Lagos, Nigeria, was conducted. Patients were examined by visual inspection and digital palpation for the presence of torus palatinus and torous mandibularis. Results: A total of 1004 subjects (male=424, female=580) were examined during the period of the study. The age range of subjects was 15-90 years (Mean ± SD=32.7 ± 13.5 years). The prevalence of mandibular and/or palatal tori was 13.6% (136 of 1004). Of thee 136 subjects, twenty-four patients had both mandibular and palatal tori, 48 had palatal tori only and 64 had mandibular tori only. Both the mandibular and palatine tori were commonly seen in female subjects. The most common location was the lingual surface of the mandible around canine-premolar region. The prevalence of mandibular torus was 8.8% and that of palatal torus was 7.2%. There was no statistically significant difference in the prevalence of mandibular tori in both sexes (P=0.48), whereas palatal tori were significantly commoner in females than males (P=0.00). Tori were commonly seen in 3rd and 4th decades of life. Tori were asymptomatic in 97% of subjects examined. Conclusion: The prevalence of tori in this study was higher than previously reported in Nigeria. About 14% of those examined in the present study were found to have mandibular and/or palatal tori. Tori located on the lingual surface of the mandible around canine-premolar region were the most commonly seen tori in agreement with previous study from Nigeria.
Tori , Mandibular , Palatine , Nigerian population
Adeyemo WL, Emeka CI, Taiwo OA, Adeyemi MO. Prevalence and pattern of presentation of mandibular and palatine tori in a Nigerian population. Nig Dent J 2009;17:16-18.