Department of Prosthetic Dentistry, Maulana Azad Institute of Dental Sciences, New Delhi, India.
J Prosthodont. 2011 Aug;20(6):428-31. doi: 10.1111/j.1532-849X.2011.00737.x. Epub 2011 Jul 20.
This study aimed at evaluating the effect of oral submucous fibrosis (OSMF) on oral stereognostic ability.
The study group comprised 14 patients having OSMF with no tongue involvement or any restriction in tongue mobility; the control group comprised 15 patients free from any oral symptoms. All patients in both groups had at least 26 teeth present and were of ages 20 to 40 years. Oral stereognostic ability was evaluated on the basis of correct recognition responses to test pieces of 12 geometric forms made from raw carrot. Of the 12 test pieces, six were large, and six were small. Test pieces were placed on the dorsum of the tongue near the apex. The test was performed three times by each patient in both groups, and no time limit was set for the identification of the test pieces. Responses were recorded using the three-point scale method. Student's t-test was used to calculate significant differences between the means of the two groups. The level of statistical significance was set at 0.05.
The mean of the total score was comparable between the study group and the control group, with no statistical significant difference observed. Test pieces with corners (mainly triangle) were recognized more correctly than those without corners.
The study indicated that the oral stereognostic ability of the study group did not significantly differ from that of the control group.
本研究旨在评估口腔黏膜下纤维性变（OSMF）对口腔味觉能力的影响。
研究组包括 14 名患有 OSMF 但无舌部受累或舌部运动受限的患者；对照组包括 15 名无任何口腔症状的患者。两组患者均至少有 26 颗牙齿，年龄在 20 至 40 岁之间。口腔味觉能力通过对 12 个由生胡萝卜制成的几何形状测试片的正确识别反应来评估。12 个测试片中，6 个为大测试片，6 个为小测试片。测试片放在舌尖附近的舌背。两组患者均进行了三次测试，没有为识别测试片设置时间限制。使用三分制方法记录反应。采用学生 t 检验计算两组平均值之间的显著性差异。统计显著性水平设为 0.05。
研究组和对照组的总分均值相当，无统计学显著差异。有角（主要为三角形）的测试片比无角的测试片识别得更准确。
本研究表明，研究组的口腔味觉能力与对照组无显著差异。
