Aims: This study aimed to investigate dentist satisfaction, participation in training courses, performance in primary health care services, and the inclusion of people with Autism Spectrum Disorder (ASD) in dental office. Material and Methods: 58 dentists completed a questionnaire entitled "Implementing a Systematization of Oral Healthcare for People with ASD to Primary Care Professionals of the Health System" that had four parts, and investigated the professional satisfaction, participation in courses, performance in primary health care services in public health and the inclusion of dental care for people with ASD. Results: 65.5% of professionals participated in training courses. Dentists who took the courses on the patients with special needs claimed that they treated significantly more patients with ASD (p-value = 0.003) and indicated periodontal disease and caries as the most frequent problems. However, 89.6% were unaware of a document with clinical practice guidelines for autistic patients, reinforcing the need for professional training. Conclusion: Dentists were aware of the importance of training and were willing to undergo courses that could improve their professional performance to promote the oral health of patients with ASD.