Evaluation of endodontist search behavior using Google Trends™: a comparative analysis of population standardization and economic indicators between G7 and E7 countries

Aims: This study aimed to compare endodontist-related Google Trends™ (GT) search volumes between selected G7 (United States, Canada, United Kingdom) and E7 (Turkiye, Brazil, India) countries from 2015 to 2025, and to evaluate the relationship between search interest and gross domestic product (GDP) per capita. Methods: GT search indices for the terms “endodontist” and their equivalents in each country’s native language were retrieved for the period 2015–2025. Monthly search values were standardized by population and expressed as “search index per 10 million population.” Annual GDP per capita and national population data were obtained from publicly available international databases. Statistical analyses included t-tests for group comparisons, one-way ANOVA with post-hoc testing for country-level differences, and Pearson correlation analysis for the association between search index and GDP per capita. A significance level of α=0.05 was adopted.Results: G7 countries demonstrated significantly higher standardized search volumes compared with E7 countries (mean difference: 10.82; p