Introduction. The relationship between abfraction lesions and work stress is an important condition nowadays in military personnel with bruxism, who participate in high impact operations. Methods. 124 marines underwent a self-assessment to recognize if they had bruxism, degree of abfraction, Perceived Stress (PSS) and Self-Reported Bruxism (SRB). These variables were statistically analyzed with the PSPP program. Results: 73% of the sample reported having bruxism. 35.5% of the sample reported severe abfraction, 26.6% moderate abfraction. Regarding (SRB), 34.7% of the sample reported a lot of bruxism, 29.8% reported regular bruxism. (SRB) 36.30% reported very often stress, 38.70% often stress. Conclusions: There is a statistically significant relationship between the perceived stress questionnaire (PSS) and the degree of bruxism (abfraction). There is also a statistically significant relationship between perceived stress (PSS) and bruxism (CBA) in the military personnel of the study sample.
