舌癌好发部位与慢性不良刺激的关系研究

目的:分析舌癌好发于舌缘、舌尖的原因。方法:36例舌癌病人按有无慢性不良刺激因子(包括残根、残冠、锐尖锐缘、倾斜牙、不良修复体)分为有刺激因子组和无刺激因子组,把发病部位分为经常受牙齿摩擦刺激的舌缘、舌尖部;和很少受牙齿摩擦刺激的舌腹、舌背、舌根部两亚组。结果:有不良刺激因子组和无不良刺激因子组中不同亚组的构成比有显著性差异,前者的舌缘、舌尖部的构成比(91.7%)显著高于后者(8.3%),而后者中不同亚组构成比相近(58.1%、41.7%)。结论:病患牙及不良修复体对舌的长期慢性不良刺激是舌癌好发于舌缘舌尖部的重要相关因素。

A study of the relationship between predilection site of tongue cancer and chronic pessimal stimulation

Objective:To find out the reasons why tongue cancer most likely occurs at the margin and tip of tongue.Method:36 tongue cancer patients were divided into two groups by whether or not they have been found stimulative factors including residual roots and crowns, sharp dental cusps, oblique teeth and bad dentures. At the same time, incidence sites of tongue cancer were divided into two parts : the tip and margin of tongue often stimulated by teeth and the root, dorsum, ventral of tongue hardly stimulated by teeth. Result: The proportional rates of the two parts between two groups were obviously different. The proportional rate (91.7%) of the tip and margin of tongue was significantly higher than that (8.3%) of the root, dorsum, ventral of tongue in Group 1 having stimulative factors. While The proportional rates (58.1%, 41.7%)of the two parts in Group 2 having no stimulative factor were similar.Conclusion:Our study suggests that chronic pessimal stimulation to tongue by unhealthy teeth and bad dentures is an important related reason why tongue cancer most likely occurs at the tip and margin of tongue.