Dentistry at Work is defined as a specialty that links labor activity and workers oral health preventing. Thisstudy aim to analyse a the perception and knowledge of dental students from Brazilians public and private universitiesonto the creation of that specialty. The research was accomplished through the quali-quantitative assessment by questionnaires with closed style questions onto the subject. The outcomes reveals that 5,7% of students is are in agreement with the validation of the specialty and 44,73% students belive that such specialty advocates,dentistry class interests first. Based in the reached data it was concluded that Labor Dentistry Specialty was not enough understood or known by dental students.