To gain insight into the current knowledge of oral care providers in the Netherlands on facial skin lesions, a survey was distributed to 7,670 oral care providers. Their knowledge was tested by means of 4 multiple-choice questions and on the basis of 5 cases. The survey was completed in full by 90 respondents. The median age was 50.3 years and 62.2% were female. During dental check-ups, 55.6% always examined the face and 41.1% sometimes did so. Compared to the group 41 years old and older, the group 21-40 years of age alerted their patients more often to skin lesions (p = 0.017), was more afraid a specialist would find the referral useless (p < 0.001) and was more in need of a guideline (p = 0.049). The respondents scored 1.90 out of 4 correct answers to the knowledge questions. On the case studies, they scored 1.46 out of 5 for the correct diagnosis, 3.48 out of 5 for the correct choice of policy and 1.01 out of 5 for the combination correct diagnosis and correct policy. The total score was 2.91 out of 9. The results indicate that knowledge on aspects of skin lesions is limited and additional training and the availability of a guideline are necessary.