Assessment of Toothwear Lesions in Patients Attending IDM, Yangon

Although toothwear lesions become common in recent days, their prevalence has not been assessed in Myanmar. Objective: To assess the prevalence of toothwear lesions in patients attending the Institute of Dental Medicine, Yangon. Method: One hundred dental patients with occlusal, facial or wedge-shape toothwear in their dentition were randomly selected and examined to record the type, severity, and distribution of toothwear. Inclusion criteria: Patients between the age of 20 to 50 years and who had full dentitions. Exclusion criteria: Those who were not included in inclusion criteria, not willing to participate in the study and absence of toothwear in their dentitions. Results: Occlusal wear was the most common type and found in all patients examined (N = 100). Wedge-shape defects were less common and found in 27 patients. The least common type of wear was facial wear and found in only 11 patients. The most severe wear was occlusal wear and found in 66.8% of the teeth, whereas wedge-shape defects and facial wear were found in 19.5% and 18.4%, respectively. For occlusal wear, the highest prevalence was found in maxillary and mandibular first molars (95.5% and 96.5%), and the lowest in maxillary lateral incisors and mandibular first premolars (40.5% each). For wedge-shape defects, the highest frequency was found in maxillary and mandibular first premolars (48.14% and 51.85%) whereas only one mandibular second molar had such defect among all second molars. For facial wear, the highest frequency was found in maxillary central incisors and mandibular first premolars (45.44% and 50.0%) while only one mandibular second molar had such defect among all second molars. Conclusion: The study revealed that occlusal wear was the most common and severe type of toothwear in patient attending IDM, Yangon.