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Published on: September 17, 2021
Geographic tongue severity index: A new and clinical scoring system
Bruna Lavinas Sayed Picciani1, Lílian Rocha Santos1, Thays Teixeira-Souza1
1Graduate Program in Pathology, School of Medicine, Fluminense Federal University, Niterói, RJ, Brazil.
Objective:
This study was designed to develop a severity index for geographic tongue (GT) based on the Psoriasis Area and Severity Index.
Study Design:
This cross-sectional observational study, with a retrospective sample of 100 participants, included 5 photographs of each case (dorsum, right border, left border, apex, and lingual belly), totaling 500 images of GT, which were evaluated by 3 experienced researchers in the area of GT and psoriasis. At the end of the analysis, GT was classified as mild, moderate, or severe.
Results:
Of the 100 patients, white women were most prevalent, accounting for 53% of cases. Of these participants, 34% had psoriasis and 24% reported a burning sensation. The values of the proposed new index obtained at time 1 (0.855) and time 2 (0.819) presented low variability, and intra- and interrater correlations produced satisfactory values ranging from 0.950 to 0.898 and 0.898 to 0.850, respectively.
Conclusion:
The new index, Geographic Tongue Area and Severity Index, provides a better characterization of GT by assessing the severity of lesions in an easy and reliable manner, and it is indicated as a first step for interpreting the condition in clinical routines and clinical trials.
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