A cross-sectional study on the association between oral health and vitamin D levels in methadone maintenance treatment program of Iranian population

Aims: The aim of this study was to investigate the relationship between oral health and Vitamin D levels in patients undergoing methadone maintenance treatment in addiction treatment centers in Kashan. Materials and Methods: This cross-sectional study was performed on 202 patients aged 18–60 years who were referred to methadone maintenance treatment clinics in Kashan. The measurement tool included a demographic information checklist and a modified oral health form of the World Health Organization. 2cc of blood was taken from patients to measure Vitamin D levels. Findings: Out of 181 patients in the study, 73.8% of patients had a methadone dose of <20 cc per day. One hundred twenty-six patients had a history of drug use. In 86.4% of patients, Vitamin D deficiencies were observed. In these patients, moderate gingival problems and moderate-to-severe dental plaque were 60.2% and 71.9%, respectively. Furthermore, the range of decayed, missing, and filled teeth (DMFT) index in these patients was 23.57 ± 7.90. No significant relationship was indicated between DMFT index and Vitamin D level. Conclusions: It is difficult to determine the main causes of oral problems among addicts. Apart from the direct effects of addiction, these patients exhibit a wide range of unhealthy behaviors such as poor oral hygiene, high sugar intake, and poor nutrition. On the other hand, most patients experience reduces in Vitamin D status.