临床口腔医学杂志
臨床口腔醫學雜誌
림상구강의학잡지
Journal of Clinical Stomatology
2015年
9期
518-520
,共3页
前磨牙%硝酸%盐酸%脱钙%收缩率
前磨牙%硝痠%鹽痠%脫鈣%收縮率
전마아%초산%염산%탈개%수축솔
premolars%nitric acid%hydrochloric acid%decalcification%shrinkage percentage
目的：探讨硝酸和盐酸脱钙对透明牙标本制作的影响。方法：40颗离体前磨牙随机分为盐酸脱钙组（A组）和硝酸脱钙组（B组），分别用5％盐酸和5％硝酸在37℃温箱中进行脱钙，脱钙完成后常规梯度脱水，水杨酸甲酯中保存透明。观察比较两种脱钙方法获得的透明牙的透明度并计算两种方法处理后牙体长度的收缩率。结果：A组处理后的牙体透明度较高，通透性较好，B组牙体偏黄。 A组标本收缩率（10．46％±3．19％）略小于B组（10．82％±2．24％），两组间差异无统计学意义（P＞0．05）。结论：盐酸或硝酸脱钙后牙体收缩率无差别，但使用盐酸脱钙制作透明牙体标本，可获得透明度更高的透明牙标本。
目的：探討硝痠和鹽痠脫鈣對透明牙標本製作的影響。方法：40顆離體前磨牙隨機分為鹽痠脫鈣組（A組）和硝痠脫鈣組（B組），分彆用5％鹽痠和5％硝痠在37℃溫箱中進行脫鈣，脫鈣完成後常規梯度脫水，水楊痠甲酯中保存透明。觀察比較兩種脫鈣方法穫得的透明牙的透明度併計算兩種方法處理後牙體長度的收縮率。結果：A組處理後的牙體透明度較高，通透性較好，B組牙體偏黃。 A組標本收縮率（10．46％±3．19％）略小于B組（10．82％±2．24％），兩組間差異無統計學意義（P＞0．05）。結論：鹽痠或硝痠脫鈣後牙體收縮率無差彆，但使用鹽痠脫鈣製作透明牙體標本，可穫得透明度更高的透明牙標本。
목적：탐토초산화염산탈개대투명아표본제작적영향。방법：40과리체전마아수궤분위염산탈개조（A조）화초산탈개조（B조），분별용5％염산화5％초산재37℃온상중진행탈개，탈개완성후상규제도탈수，수양산갑지중보존투명。관찰비교량충탈개방법획득적투명아적투명도병계산량충방법처리후아체장도적수축솔。결과：A조처리후적아체투명도교고，통투성교호，B조아체편황。 A조표본수축솔（10．46％±3．19％）략소우B조（10．82％±2．24％），량조간차이무통계학의의（P＞0．05）。결론：염산혹초산탈개후아체수축솔무차별，단사용염산탈개제작투명아체표본，가획득투명도경고적투명아표본。
Objective:To investigate the shrinkage of transparent teeth caused by nitric acid and hydrochloric acid , and provide the technical reference for the decalcification of clearing technique. Method:40 human premolars were ran-domly divided to two groups,hydrochloric acid group(group A) and nitric group(group B). The specimens from each group were decalcified by 5%hydrochloric acid and 5%nitric acid in 37 ℃ incubator respectively. After achieving the standard decalcification,all the specimens were gradually dehydrated by ethyl alcohol,then cleared and conserved in methyl salicy-late. Result:The teeth of Group A were higher transparency while the colour of group B was yellow. The shrinkage percent-age of group A was(10.46%±3.19%) less than group B(10.82%±2.24%),and the had no significant difference between two groups(P>0.05). Conclusion:The shrinkage percentage of specimens from two groups was similar,but the higher trans-parency specimen was obtained by using hydrochloric acid.
