上颌第一前磨牙X线法髓腔物理量  

Pulp Chambers Physical Quantity of Maxillary First Premolari in X Line Method

作　　者：丁文杰[1] 袁野[2] 丁继固[3] 

机构地区：[1]湖北科技学院五管医学院,湖北咸宁437100 [2]广州军区武汉总医院耳鼻咽喉科 [3]湖北科技学院基础医学院

出　　处：《湖北科技学院学报（医学版）》2013年第1期24-27,共4页Journal of Hubei University of Science and Technology(Medical Sciences)

摘　　要：目的探讨上颌第1前磨牙X线片法髓腔物理量方面的数据。方法用X线平行投照法拍摄实体牙颊舌向和近远中向X线片牙影像,根据本文对髓腔根管定的分型标准对根管进行分型。用电脑配套的柯达成像系统测量(mm)X线片牙的髓高、髓宽、根中颊径、根中舌径、根尖颊径和根尖舌径。用SPSS17.0软件统计处理X线片牙的髓腔物理量值。结果 100颗上颌第1前磨牙中X线片牙根管有6种类型,Ⅰ-1-1型占33%,Ⅰ-2-2型占17%,Ⅰ-2-1型占13%,Ⅰ-1-2型占4%,Ⅰ-2-1-2型占3%,Ⅱ-2-2型占30%。X线片牙的髓高3.09±1.18,髓宽3.88±0.61,根中颊径1.76±1.18,根中舌径0.59±0.34,根尖颊径0.79±0.89,根尖舌径0.35±0.28。髓腔物理量各测值差异均存在统计学意义。结论上述结果说明本组上颌第1前磨牙根管类型主要是Ⅰ-1-1型,Ⅰ-2-2型,Ⅱ-2-2型。X线片牙物理量测值经相关及回归分析,如果有相关性的配对项,可用回归方程中的自变量值(X)来推测因变量的值(Y)。Objective Discusses the maxillary the first premolar X-ray method pulp cavity physical quantities of data. Methods Use X line parallel shots were taken tooth cheek entity according to the tongue is about and to X-ray image teeth, according to this paper pulp cavity root canal set points to roots type standard pipe type points. Using the computer matching kodak imaging system measurement （mm） X-ray of the pulp is high, the pulp tooth width, root in diameter, tongue in cheek root diameter, diameter and root root buccal tongue size. SPSS17.0 software with statistical processing X-ray of the medullary cavity teeth physical quantity. Results In the 100 of the maxillary first premolar in X-ray root tube has 6 type： I -1-1 type 33%, I -2-2 type 17%, I - 2-1 type 13%, I -1-2 type 4%, I -2-1-2 type 3%, Ⅱ-2-2 type 30%. X-ray of the tooth with high of the pulp chambers 3.09 - 1.18 ,wide of the pulp chambers 3.88 -0.61 ,diameter of the root middle buccal 1.76 ± 1. 18, diameter of the root middle tongue 0.59 ± 0.34, diameter of the root tip huccal 0.79 ± 0.89, diameter of the root tip tongue 0.35 ＋ 0.28. Medullary cavity physical quantity measured value differences have statistical sig- nificance. Conclusion The results show that the maxillary first premolar root canal are the main types of I -1-1, I -2-2, Ⅱ-2-2 type. X ray tooth physical measurement by correlation and regression analysis,if there is a corre- lation between the pair, can be used in regression equation of values of an independent variable （X）to estimate the value of the dependent variable （Y）. Oral clinical practice with the medullary cavity physical quantity un- known data. Tooth teeth by X-ray study physical quantity method is simple,feasible ,practical.

关 键 词：上颌第1前磨牙 X线片牙 髓腔 物理量 

分 类 号：R782.1[医药卫生—口腔医学]