Introduction:

smoking is considered an epidemic of a universal nature and is a burden for the individual, the family and society. The oral cavity is affected to its full extent and this results in negative effects on its tissues.

Objective:

to determine the changes in the level of knowledge about smoking and its relationship with the oral cavity, with the application of an educational intervention.

Methods:

a longitudinal study was carried out in 55 smoking volunteers, of both sexes, adults, from the Hospital Militar Central “Dr. Carlos J. Finlay”, in the period from December 2017 to January 2018. A questionnaire was applied to determine the level of knowledge about smoking and the oral cavity, before and after an educational intervention. The results of both applications were compared.

Results:

the level of knowledge was sufficient in 23.63% of the subjects; after the intervention was applied, it increased to 83.63%. In relation to periodontal disease, misconceptions prevailed before the intervention (83.63% insufficient) and afterwards, 65.45% responded correctly.

Conclusions:

the intervention applied, was effective increasing the level of knowledge about smoking and oral cavity.

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