The Relationship between Sleep Bruxism Index and Quality of Life

The aim of this study was represented by the identification of the type of relation between the bruxism sleep index and the global quality of life.

The study group was composed of a number of 40 patients, both women and men, who did not report health problems and who were identified with a positive self-report regarding the existence of sleep bruxism. For the identification of the bruxism index, the Bruxoff device, Bioelettronica, Turin, Italy, was used. Quality of life inventory (QOLI) was used to determine quality of life scores (T-score).

The gender distribution of the batch is as follows: 52.5%-male, 47.5%-female. The maximum value of the bruxism index was 10.5, and the minimum was 2.10, with a mean of 6.30 and a standard deviation of 2.22. Quality of life T-score recorded maximum value equal to 62, minimum value equal to 40, mean equal to 51.87. The Pearson correlation coefficient calculated to test the correlation between the bruxism indicator and the QOLI T Score presented a negative value (-0.643), which signifies a negative but very strong relation between the two variables. 77.5% of the participants were included in a mean level of quality of life.

A statistically strong negative relation was found between global quality-of-life (T-scores) and the bruxism indicator in patients with bruxism activity during sleep.