Association of problematic Internet use and oral health-related quality of life among medical and dental students.

Background: The Internet as a communication tool is an essential component of daily life. Nowadays, problematic Internet use (PIU) has led to various psychosocial problems that can indirectly lead to oral diseases due to neglect of healthy behaviors. Also, college students are a large proportion of Internet users. The present study aimed to determine the association between problematic Internet use and oral health-related quality of life (OHRQoL) among medical and dental students.

Methods: A cross-sectional descriptive-analytical study was conducted on medical and dental students in the first and second years of education (basic sciences courses) at the Golestan University of Medical Sciences, Iran, between January and July 2020. The data collection process was carried out in the following sequence: questionnaire on demographic characteristics (age, gender, marital status, academic field, and year); Problematic Internet Use Questionnaire (PIUQ); and Oral Health Impact Profile (OHIP-14) questionnaire.

Results: Among 268 medical and dental students, 171 students (63.81%) [95% confidence interval: 58.02%- 69.60%] had problematic Internet use. The mean PIU score in the first-year was significantly higher than the second-year students. In addition, 65% of single students and 25% of married subjects were dealing with PIU. The statistical difference between mean OHIP scores among PIU students (12.5 ± 2.9), with average Internet usage (7.39 ± 6.6), was significant. The Spearman correlation coefficient between PIU and OHIP was 0.309 and significant (P-value < 0.000001). It indicates that students with higher PIU showed higher OHIP scores.

Conclusion: The present study showed that problematic Internet use was significantly associated with oral health-related quality of life (OHRQoL) among first and second-year medical and dental students. Thus, the students with problematic Internet use experienced a poorer oral health-related quality of life than average Internet users. Furthermore, appropriate preventive and interventional strategies need to be developed to encourage rational use of the Internet to protect the users' oral health, especially among medical and dental students.