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. 2024 May;22(2):414-422.
doi: 10.1111/idh.12755. Epub 2023 Sep 18.

Digital surveillance: The interest in mouthwash-related information

Bruna Di Profio  1 , Matheus Lotto  2   3 , Patricia E Ayala Aguirre  2   4 , Cristina C Villar  1 , Giuseppe A Romito  1 , Thiago Cruvinel  2 , Cláudio Mendes Pannuti  1
Affiliations

Digital surveillance: The interest in mouthwash-related information

Bruna Di Profio et al. Int J Dent Hyg. 2024 May.

Abstract

Background: The comprehension of the interests of Internet users regarding their health-related searches may reveal the community's demands about oral health. The study aimed to characterize the interests of Google users related to mouthwash in Australia, Brazil, Chile, Japan, Mexico, Russia, the United Kingdom, the United States, Saudi Arabia and South Africa applying the Google Trends.

Methods: This longitudinal retrospective study analysed the mouthwash-related interest of Google users from January 2004 to December 2020. The monthly variation of relative search volume (RSV) and the main queries related were determined using Google Trends. Autoregressive integrated moving average (ARIMA) forecasting models were built to establish the predictive RSV values for mouthwash for additional 12 months. Auto-correlation plots and a general additive model (GAM) were used to diagnose trends and seasonality in RSV curves. In addition, the influence of social isolation related to the outbreak of COVID-19 were analysed.

Results: The RSVs curves showed a considerable increase in searches related to mouthwash to AUS, BRA, JAP, MEX, GBR and USA (RSV > 25), while the growth was slight to CHI, KSA, RSA and RUS (RSV < 25) over the years, without influence of monthly seasonality. All countries showed a significant increase in mouthwash interest after the outbreak of COVID-19, except for KSA and RUS. The mouthwash-related searches were associated to specific brands or chemical compositions, treatments, whitening agents, homemade mouthwash and indications for the 'best mouthwash'.

Conclusions: In general, there was an increasing interest of Google users in mouthwash-related topics between 2004 and 2020. In addition, in most countries, there was an expansion in searches during the social isolation of the COVID-19 pandemics.

Keywords: COVID‐19; consumer health information; dental informatics; internet use; mouthwashes.

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