Abstract:
BACKGROUND: The value of chairside adjunctive tests in the detection of oral potentially malignant disorders (OPMDs) remains uncertain. OBJECTIVES: To determine the effectiveness of toluidine blue in detecting leukoplakia and erythroplakia and its accuracy in identifying cases with oral epithelial dysplasia. MATERIALS AND METHODS: Ninety-two patients attending two oral medicine clinics in London, presenting with white and red patches of the oral mucosa, were investigated by the application of toluidine blue. Eighty-two patients were clinically diagnosed as OPMDs and 10 were frictional keratoses. A surgical biopsy was performed to assess epithelial dysplasia. RESULTS:Of 64 oral leukoplakias, 34 (53.1%) were positive for toluidine blue and among nine erythroplakias seven stained positive. Of 41 oral dysplasia cases, a little more than half of the lesions (n = 23) were stain positive, an estimated sensitivity of 56.1%. TBlue test had a higher sensitivity for detecting higher-grade dysplastic lesions (5/8 moderate dysplasia, sensitivity 62.5%; 5/7 severe dysplasia; sensitivity 71.4%) compared with lower grades of dysplasia, but the differences were not significant (P = 0.60). CONCLUSIONS:We report here the utility of TBlue for the detection of oral leukoplakia and erythroplakia. The test has the potential to detect OPMDs and yielded a sensitivity of 56.1% and specificity of 56.9% to detect oral epithelial dysplasia.
journal_name
Oral Disjournal_title
Oral diseasesauthors
Awan Kh,Yang Y,Morgan P,Warnakulasuriya Sdoi
10.1111/j.1601-0825.2012.01935.xsubject
Has Abstractpub_date
2012-11-01 00:00:00pages
728-33issue
8eissn
1354-523Xissn
1601-0825journal_volume
18pub_type
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