{"title":"Content Gaps and Informational Quality of TikTok and Bilibili Videos on Pit and Fissure Sealing in China: A Cross-Sectional Study.","authors":"Feng Cai, Wending Gao, Linhu Wang","doi":"10.3290/j.ohpd.c_2759","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the disease-specific content coverage, overall quality, reliability, and transparency of Chinese-language short videos on pit and fissure sealing posted on TikTok and Bilibili.</p><p><strong>Methods and materials: </strong>In this cross-sectional study, videos were retrieved from TikTok and Bilibili on December 20, 2025, using the Chinese search term '' (pit and fissure sealing). The first 150 results from each platform were screened, and 204 eligible videos were included. Overall quality, reliability, and transparency were assessed using the Global Quality Score (GQS), modified DISCERN (mDISCERN), and Journal of the American Medical Association (JAMA) benchmark criteria, respectively. A predefined disease-specific coding framework was used to evaluate content coverage. Group comparisons, Spearman's rank correlation, and multivariable ordered logistic regression were performed.</p><p><strong>Results: </strong>Benefits and indications were the most frequently covered domains, appearing in 87.75% and 78.92% of videos, respectively, whereas contraindications and cost were addressed in only 21.57% and 28.92%. The median GQS, mDISCERN, and JAMA scores were all 3.00. No significant differences in validated assessment scores were observed between TikTok and Bilibili. Videos uploaded by healthcare professionals, especially specialised healthcare professionals, achieved higher scores than those uploaded by individual users. Video duration showed weak positive correlations with validated assessment scores, whereas engagement indicators were not meaningfully associated with informational quality.</p><p><strong>Conclusion: </strong>Short videos on pit and fissure sealing provide moderately useful information, but content coverage remains incomplete and uneven. Greater participation by healthcare professionals and better access to balanced, trustworthy preventive information are needed on short-video platforms.</p>","PeriodicalId":19696,"journal":{"name":"Oral health & preventive dentistry","volume":"24 ","pages":"527-539"},"PeriodicalIF":1.7000,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13339210/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oral health & preventive dentistry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3290/j.ohpd.c_2759","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: To evaluate the disease-specific content coverage, overall quality, reliability, and transparency of Chinese-language short videos on pit and fissure sealing posted on TikTok and Bilibili.
Methods and materials: In this cross-sectional study, videos were retrieved from TikTok and Bilibili on December 20, 2025, using the Chinese search term '' (pit and fissure sealing). The first 150 results from each platform were screened, and 204 eligible videos were included. Overall quality, reliability, and transparency were assessed using the Global Quality Score (GQS), modified DISCERN (mDISCERN), and Journal of the American Medical Association (JAMA) benchmark criteria, respectively. A predefined disease-specific coding framework was used to evaluate content coverage. Group comparisons, Spearman's rank correlation, and multivariable ordered logistic regression were performed.
Results: Benefits and indications were the most frequently covered domains, appearing in 87.75% and 78.92% of videos, respectively, whereas contraindications and cost were addressed in only 21.57% and 28.92%. The median GQS, mDISCERN, and JAMA scores were all 3.00. No significant differences in validated assessment scores were observed between TikTok and Bilibili. Videos uploaded by healthcare professionals, especially specialised healthcare professionals, achieved higher scores than those uploaded by individual users. Video duration showed weak positive correlations with validated assessment scores, whereas engagement indicators were not meaningfully associated with informational quality.
Conclusion: Short videos on pit and fissure sealing provide moderately useful information, but content coverage remains incomplete and uneven. Greater participation by healthcare professionals and better access to balanced, trustworthy preventive information are needed on short-video platforms.
期刊介绍：
Clinicians, general practitioners, teachers, researchers, and public health administrators will find this journal an indispensable source of essential, timely information about scientific progress in the fields of oral health and the prevention of caries, periodontal diseases, oral mucosal diseases, and dental trauma. Central topics, including oral hygiene, oral epidemiology, oral health promotion, and public health issues, are covered in peer-reviewed articles such as clinical and basic science research reports; reviews; invited focus articles, commentaries, and guest editorials; and symposium, workshop, and conference proceedings.
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