This study aimed to critically evaluate the role and dissemination of anecdotal evidence in dentistry by conducting an integrated analysis of social media content and scientific literature. It sought to identify prevalent patterns, temporal trends, and the clinical implications of pseudoscientific claims promoted online.

A comprehensive, retrospective research design was employed in three sequential phases. First, a systematic sampling of dental-related posts on Instagram, X, and Facebook using twelve predefined hashtags was conducted. Second, Google Trends data for these terms were analyzed to identify search volume patterns. Third, a structured literature review was performed across major scientific databases to identify retracted or contested dental claims. Data were analyzed using thematic coding and triangulation of social media, trends, and literature findings.

The analysis of 304 sampled social media accounts revealed distinct categories of anecdotal claims, with high-adherence myths often linked to technophobia. While sporadic peaks in online interest occurred, no significant sustained growth in "holistic dentistry" searches was found (R ²  = 0.108, p = 0.12). The literature review confirmed a proliferation of pseudoscientific practices, frequently characterized by logical fallacies, misuse of outdated research, and a lack of long-term evidence. A 350% surge in localized searches for "biological dentistry near me" was also observed.

Anecdotal evidence and pseudoscientific claims are pervasive on dental social media, posing a significant risk to patient care by contradicting evidence-based principles. Despite transient viral trends, the core tenets of these movements show no sustained scientific growth. The findings underscore the urgent need for dental professionals to actively engage in digital spaces to counteract misinformation and uphold ethical, evidence-based practice.