ISSN: 1859 - 2872
A systematic review on effectiveness of tongue cleaning methods in tongue coating removal
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Abstract
Objective: A systematic review to evaluate the effectiveness of tongue coating removal by applying some techniques: Tongue brushing, Tongue Scraping, Toothbrush, Mouthwash (Mouthrinse), or a combination of the above methods. Subject and method: The searching process was carried out on electronic databases: PubMed-MEDLINE, Embase, and Cochrane-CENTRAL. Articles were published from January 2012 to the end of July 2023. The quality of the articles was scored using the Cochrane Risk of Bias Tool for RCTs. The Winkel tongue plaque index (WTCI) in the studies was the outcome variable of interest. Result: A total of 9 studies that met the inclusion criteria were included in the analysis, including 2 clinical trials and 7 randomized controlled trials. There are 2 studies that reduced tongue coating from severe to moderate (T0: 9.0 ± 1.96, T1: 7.07 ± 1.75 & T0: 9.32 ± 1.44, T2: 7.21 ± 1.13) and 2 studies reduced tongue coating from moderate to mild (T0: 5.33 ± 3.32, T1: 3.44 ± 2.60; T0: 5.78 ± 3.35, T1: 2.89 ± 3.52 & T0: 6.180 ± 2.844, T1: 3.850 ± 2.190). Conclusion: Tongue cleaning methods using a tongue scraping, tongue brush, or toothbrush all significantly reduce the amount of plaque on the dorsal surface of the tongue, however there is no significant difference in the effectiveness of the methods. The use of mouthwash has no significant effect in tongue coating removal.
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References
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