Aim: The aim of the study was to evaluate the quality of information provided by YouTube videos on zygomatic implants.
Methods: YouTube videos were searched using the keyword "Zygomatic implants". The first 200 videos were analysed. After exclusion, the remaining 94 videos were independently analysed by 2 investigators for demographic characteristics and usefulness of content. All videos were rated as poor, fair or excellent based on the usefulness score by assessing the quality and flow of the content. Overall video ratings included duration, views, likes, dislikes, and comments. Video content was analysed using an 8-point scoring list. All videos were categorised by source. Categorical data were analysed using Pearson's chi-squared test. For non-normally distributed data, the Kruskal-Wallis test was used for between-group comparisons and post-hoc Dunn's test for multiple comparisons. The significance level was set at p < 0.050.
Results: When analysing where the videos were uploaded from, the highest rate was found in the USA with 51.1%, followed by India with 21.3% and Spain with 5.3%. When analysing the source of the videos uploaded, 11.7% were educational videos produced by doctors, 54.2% were patient information videos and 34% were promotional videos. There was a statistically significant difference in the median number of views, likes, and dislikes depending on the source of the video upload (p