The Effects of Saliva Characteristics and Oral Hygiene Habits on Dental Health: Evaluation with DMFT Index

Background: The World Health Organization (WHO) has identified oral health as an important public health priority. Dental caries is a common health problem worldwide, and the DMFT (Decayed, Missing, Filled Teeth) index is an effective measurement tool for evaluating this issue. This study examines the relationship between oral hygiene habits, saliva characteristics, and the DMFT index among first-year students at Burdur Mehmet Akif Ersoy University Faculty of Dentistry.

Methods: 56 dentistry students were included in the study. Clinical examinations determined the DMFT values of the participants. Saliva samples were collected using the stimulated saliva method, and pH, buffering capacity, and flow rate were measured. In addition, a questionnaire was administered to question the students’ oral hygiene habits and nutritional behaviors. The data were analyzed with SPSS software, and P < .05 was considered significant.

Results: Women’s mean DMFT value was lower than men’s; however, no significant difference was observed (P > .05). Men’s salivary flow rate was significantly higher (P < .05). An essential and negative correlation was found between DMFT and salivary pH value (P < .05). A negative correlation was observed between tooth brushing frequency and DMFT. However, this relationship was not significant (P > .05).

Conclusion: Regular tooth brushing, dental flossing, and adequate hydration are essential for oral health. Properties of saliva, such as pH and buffering capacity, are effective in preventing dental caries, and the DMFT index is a vital tool for evaluating these relationships. The study emphasizes the effects of oral hygiene habits and biological factors on oral health.

Cite this article as: Küçükyıldız EN, İşiner B. The effects of saliva characteristics and oral hygiene habits on dental health: evaluation with DMFT index. Essent Dent. 2025, 4, 0008, doi: 10.5152/EssentDent.2025.25008.