In recent years, social media platforms have emerged as major sources of health-related information. The aim of this study was to evaluate the alignment between TikTok videos on oral hygiene and official dental protocols, and to determine the prevalence of misinformation. A quantitative, observational, cross-sectional study was conducted to analyze 246 Spanish-language TikTok videos collected between May and July 2025 using 11 hashtags. Videos were assessed using a standardized summary based on guidelines from the Fédération Dentaire Internationale, American Dental Association, Federación Odontológica Ecuatoriana, and Federación Dental Española. Content was classified as aligned if it aligned with at least one protocol. Statistical analyses included descriptive statistics, Z-tests for proportions, chi-square tests, and Mann–Whitney U tests. As results, only 1% of videos cited official references. Overall, 26.19% aligned with at least one protocol, while 73.81% contained unsupported or non-aligned information. Misrepresentation was most frequent for fluoride concentration, toothpaste quantity, dental floss characteristics, and mouthwash use. Video format, presentation style, and creator profile were significantly associated with accuracy. Engagement metrics did not consistently favor accurate content. In conclusion, most TikTok oral hygiene content does not reflect official dental protocols, highlighting the need for improved digital health literacy and responsible professional communication.
Rosero et al. (Wed,) studied this question.