Related Experiment Video
Updated: Aug 23, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
Published on: February 2, 2018
Psychic and occlusal factors in bruxers
D Manfredini1, N Landi, M Romagnoli
1Department of Neuroscience, University of Pisa, Italy. daniele.manfredini@tin.it
Background:
The aim of this study was to investigate the existence of associations between bruxism and psychic and occlusal factors.
Methods:
Participants in this study (n=85) were recruited from the Section of Odontostomatology, Deparent of Neuroscience, University of Pisa, Italy. They were split into two groups, bruxers (n=34) and non-bruxers (n=51), on the basis of the presence of both clinical and anamnestical indicators of bruxim. All participants were administered two self-reported validated questionnaires to evaluate (MOODS-SR) and panic-agoraphobic (PAS-SR) spetra. A number of occlusal variables (deep-bite: cross-bite, open-bite, mediotrusive and laterotrusive interferences, slide RCP-ICP, laterotrutsive guides, canine and molar classes) were also recorded.
Results:
With regards to occlusal factors, the only association was revealed between bruxism mediotrusive interferences (p < 0.05). As for psychiatric investigation, significant differences between bruxers and controls emerged for the presence of both depressive (p < 0.01) and manic symptoms (p < 0.01) in MOODS-SR, and for stress sensitivity (p < 0.01), anxious expectation (p < 0.05), and reassurance sensitivity symptoms (p < 0.05) in PAS-SR. In particular, both mood (p < 0.01) and panic-agoraphobic (p < 0.05) spectra symptoms seem to differentiate bruxers from controls in males, while in females strong differences emerged for stress sensitivity symptoms (p < 0.05).
Conclusions:
It can be confirmed that certain psychic traits are present in bruxers, while occlusal factors are not useful parameters to discern bruxers from non-bruxers.
Related Concept Videos
Factors Affecting Perception
An illustrative example of a perceptual set is the scenario where an airline pilot told...
Psychosexual Stages of Personality: Oral
Weaning, typically occurring around the age...
Psychological and Sociocultural Causes of Schizophrenia
Facial Feedback Hypothesis
Prosopagnosia
Obsessive-Compulsive Disorder