Methods The contents of fluorides in water in and around a large size chemical factory were under monitoring. 545 workers and children living in polluted area and 75 villagers living around as control were selected to be measured such indexes as chronic pharyngitis and coryza, urine fluorine, dental fluorosis, secretory immunoglobulin A and the alkaline resistance of skin.

對某大型化工廠廠區(qū)及周圍水的氟化物含量進行監(jiān)測，對氟污染區(qū)工人和兒童5 45人及周邊村民對照組75人進行上呼吸道慢性炎癥欧美精品a欧洲黑人aⅴ精品、尿氟午夜视频福利免费、氟斑釉、SIgA老人把我添到了高潮A片、皮膚堿抗力的調(diào)查韩日性网。

Results It is found that the prevalence rates of chronic pharyngitis and coryza in workers were higher than in children or controls, those of dental fluorosis in workers or children were higher than in control while the SIgA was opposite.

結(jié)果 工人咽炎和鼻炎高于兒童及對照區(qū)，工人最新乱伦网址、兒童氟斑釉高于村民對照組而SIgA低于村民對照組欧洲老妇交配。

The length, width, axial gradient for the crowns,the heigh of gingival line,the width of anterior dentition and the ratio of crista marginalis of their teeth were measured and analysed in their photographs and dental casts after orthodontic treatment.

測量關(guān)于正畸治療后上頜第一前磨牙和對側(cè)尖牙的齦緣線高度和牙齒形態(tài)的6項指標：齦緣線高度、臨床冠長度91最新国产精品视频、寬度宗合久网、單側(cè)前牙列寬度、軸傾度和近遠中邊緣嵴比禁18岁黄色视频在线观看，進行兩均數(shù)配對t檢驗中文字幕一区二区观看，觀察分析兩組的差異。

OBJECTIVE To prevent and control of cross infection in dental procedures.

目的 預(yù)防和控制口腔科的操作引起的交叉感染欧美视频在线视频免费观看免费观看免费。

In this thesis, based on the analysis of the current manufactures of dental prosthesis, there is an opinion that fabricate molar full crown with RP and LENS.

二十世紀九十年代激光近形制造技術(shù)又被開發(fā)出來在线免费视频91，并在金屬與陶瓷工件制作上顯出極大的優(yōu)越性。

Clinical effect was satisfying. Conclusions: Residual crown and residual root could be successfully restored with post and core crown, which could form the dental anatomical shape, restore physiological function, and be natural aesthetic and comfortable.

樁核冠修復方法能較好地利用殘冠殘根91超碰永久地址，恢復牙體解剖結(jié)構(gòu)和生理功能黄色网站进口免费，美觀舒適，從而達到保存修復的目的wwwcao。

Lower molar residual root/crown can be preserved for a long time after perfect enˉdodontic or root canal therapy and reconstruction of dental root post/core crown At understanding exactly the indicaˉtion.

筆者從1993年5月開始試著對那些下頜磨牙近遠中根分離欧美激情一区二区三区高清视频在线观看，髓室底缺如，已建議拔除的殘根殘冠采用單根獨立樁核冠修復的83例136牙經(jīng)3～5年以上復查日韩美女A片，獲得較滿意的效果蜜臀亚洲精品国产AⅤ综合第一。

Objective To study the biological characteristics of cultured human dental pulp stem cells in vitro.

目的 研究體外培養(yǎng)的人牙髓干細胞的生物學特性。

After treatment the changes of dental arch width in first and second premolar region were larger than that of cuspid and first molar regions.

上頜第一在线观看国产美女精品、二雙尖牙間各自寬度較尖牙間亚洲精选无码精品、一磨牙間寬度增加顯著字幕中文在线。

The model was merged.Result:An ideal three-dimensional finite element model of the PFM crown for the upper cuspid was constructed.Conclusion:The constructed 3-DFE model was quick and accurate and could be applied as a new method in the dental research. cuspid ; finite element ; porcelain fused to metal

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