猴上颌犬齿投照方法的探讨  

The Study on Radiographic Method of Cuspid of Maxilla in Monkey

作　　者：刘豆豆[1] 

机构地区：[1]西安市第四军医大学口腔医学院影像科,710032

出　　处：《实用放射学杂志》2000年第3期168-169,共2页Journal of Practical Radiology

摘　　要：目的 :探讨 32只猴活体上颌犬齿口内摄片的最佳投照方法。方法 :32只猴均采用 X线中心线与矢状面夹角呈 6 0°～ 75°投照条件不变的情况下 ,X线中心线分别再向足侧倾斜 5 0°方法行 4只猴 8次照片 ;向足侧倾斜 70°方法 6只猴 12次照片及向足侧倾斜 85°方法 2 2只猴 44次照片。结果 :采用 5 0°方法 ,获取一类片 0 % ,二类片 2 5 % ,三类片 75 % ;采用 70°方法 ,获取一类片 0 % ,二类片 83% ,三类片 17% ;采用 85°方法 ,获取一类片 82 % ,二类片 18%。 5 0°投照方法获取的影像结果最差 ,85°投照方法获取的影像效果最好 ,三种方法统计学相差显著 (P<0 .0 0 1)。结论 :拍摄猴犬齿片时应根据其解剖特点 ,加大投照角度到 85°,可得到满意的效果。Objective:To investigate the proper radiographic methods of dens canine of maxilla in monkey.Methods:The three differential radiographic positions were made in 32 monkeys.The fixed parameters was the center line makes 60°～75°with the median sagittal plane of head in all of the animals,then the X-ray beam makes 50° toward foot for 8 radiographs in 4 monkeys,70° for 12 radiographs in bi monkeys and 85° for 44 radiographs in 22 monkeys.Results:0% first class and 25% second class and 75% third class radiographs were obtained in the 50° position;0% first class and 83% second class and 17% third class radiographs were obtained in the 70° postition;82% first class and 18% second class radiographs in 85° position,there was statistically significant difference in 3 different radiographs.Conclusion:The best radiographs of dens canine in monkey can be obtained at the 85° acording to its anatomic characters.

关 键 词：动物实验 X线摄影 上颌犬齿 

分 类 号：R816.98[医药卫生—放射医学]