Introduction:

habits modify dental position and the relationship between them, as they interfere with normal growth and the function of the orofacial musculature, causing a notorious imbalance that often leads to dentomaxillofacial anomalies.

Objective:

to determine the relationship between parafunctional habits and patients with osseo-dental discrepancies according to Angle's classification.

Methods:

a qualitative, descriptive, documentary, literature review study was carried out based on published articles on deforming oral habits. Primary, secondary and classic sources in dental science were used through articles, certified information, websites such as Pubmed, Scielo, Elsevier, Redalyc, Springer, Google Scholar, UG repository in which information was obtained on the etiological factor, causes, characteristics of oral habits and their incidence in dental malocclusion and dentofacial development.

Results:

the results of this research show the importance of the study of parafunctional habits, which are the main cause of dental malocclusions among the most frequent non-physiological oral habits are mouth breathing, onychophagia, lip suction, digital suction, pacifier use, among others, since there is a close relationship between malocclusions and the type of habit, which will depend on the intensity.

Conclusions:

according to the research carried out, it is recommended that the patient should see a dentist from an early age in order to avoid this type of habits. Early precautions should be taken with visits to the dentist once or twice a year to check the state of the oral cavity.

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