The Impact of Oral Health on the Quality of Life of Children with Autism Spectrum Disorder and Their Families: Parental Perspectives from an Online Cross-Sectional Study

Aim: This study aimed to determine the oral health profile of children with autism spectrum disorder and to analyze the impact of their oral health status on their personal quality of life and the quality of life of their families. Materials and Methods: A cross-sectional online study was conducted on 121 parents. A self-structured questionnaire was used to collect data on sociodemographic characteristics, parents’ perceptions of their child’s oral health, oral hygiene practices, and access to dental care. Additionally, the Parental–Caregiver Perceptions Questionnaire (P-CPQ-16, 16 items) and the Family Impact Scale (FIS-8, 8 items) were employed. The data were analyzed descriptively and using the Mann–Whitney U test and the Kruskal–Wallis H test. Results: No significant differences were found in FIS-8 and P-CPQ-16 scores between parents and children based on their sociodemographic characteristics. However, a significant association was observed between P-CPQ-16 and FIS-8 total scores and the type of used dental care (general dental practice vs. adapted practice and general anesthesia, p ≤ 0.001), dental visit frequency (regular vs. occasional, p < 0.05), child cooperation level during dental visits (cooperative vs. uncooperative, p ≤ 0.001), and dental care access challenges (p < 0.05). Parents reported a high prevalence of poor oral health in their children: the experience of tooth decay (48.1%), malocclusion (47.1%), bruxism (38.8%), bad breath (34.7%), and toothache (28.8%) in the previous 12 months. Most children brushed their teeth daily (89.3%), often with the help of their parents (44.6%). The most frequently reported difficulty in maintaining oral hygiene was the children’s unwillingness to cooperate (62.8%). Conclusions: Poor perceived oral health in children with autism spectrum disorder is significantly linked to a lower quality of life for both them and their families, especially when access to dental care is difficult and there is a lack of cooperation. Addressing these barriers and the high prevalence of oral health problems through tailored strategies is critical to improving children’s well-being.