Are YouTube Videos Useful for Patients Interested in Botulinum Toxin for Bruxism?

The study purpose was to evaluate the quality of provided information from YouTube videos (Google LLC, San Bruno, California) related to botulinum toxin injections for bruxism treatment. In this cross-sectional study, a search of YouTube videos was conducted using the search term “Botox/bruxism.” The first 150 videos were initially screened. After exclusions, the remaining 97 videos were independently examined by 3 researchers regarding demographic data and the content's usefulness. All videos were classified according to a usefulness score as poor, moderate, or excellent by evaluating content quality and flow. General video assessment included duration, views, “likes,” “dislikes,” and comments. Video content was analyzed by an 8-point score list. All videos were classified based on sources (universities and hospitals, health care professionals, health companies, individual users, or others) and types (patient's experience, educational, or scientifically erroneous or unproven information). The obtained data were analyzed according to the usefulness score. For statistical analysis, the χ2 test, Kruskal-Wallis test, and Pearson test were performed. Interobserver agreement was calculated as the κ score. The usefulness scores of the included videos ranged from poor (0) to excellent (2) (mean, 0.65). When video demographic data were compared with the usefulness score, the durations of excellent and moderate videos were statistically significantly longer than those of poor videos (P = .022 and P .05). A statistically significant relationship was found between video demographic data and the source of upload (P