METHODS: 27 maxillary second bicuspid teeth with two canals and one isthmus were divided randomly into 3 groups with 9 in each.

27顆根管結(jié)構(gòu)為一個峽部連接2個主根管的離體上頜第二前磨牙WWW.日本黄色，隨機均分為3組色区综合色区视频无码系列，分別采用3種處理方式進行倒預備91视频日本。

Methods Twenty recently extracted human normal bicuspid teeth were randomly divided into three groups: Nd-YAG laser power group, simple application drug group, eight teeth in every group, four teeth in vacuity contrast group.

選用臨床正畸患者拔除的健康前磨牙20顆黄网址入口，隨機分為3組：激光組、單純涂藥組久久香综合精品色综合，每組8顆国产精品页，對照組4顆亚洲中文字幕久久。

The first three largest number of missing teeth is as follows: maxillary first molar, maxillary second molar and mandibular first molar. The first three largest number of resident teeth is as follows: mandibular cuspid, mandibular bicuspid and maxillary cuspid. The cases without occusal relationship account for 19.51%; and the cases which need occlusal reconstruction or occlusal elevation account for 19.51% of all the cases, while food impaction exists in 21.84% cases.

結(jié)果：本組老年人平均缺失牙齒9.10顆，缺失最多的前3位牙齒是上頜第一磨牙A片集合、上頜第二磨牙和下頜第一磨牙女人十八黄色视频；余留最多的前3位牙齒是下頜尖牙、下頜第一雙尖牙和上頜尖牙久久久久精品视频久久久久。19.51%的病例頜骨間無咬合接觸關(guān)系久久九九久91精品国产综合，19.51%的病例修復時需咬合重建或咬合抬高；21.84%的病例修復前存在食物嵌塞91极品女神尤物在线观看。

bicuspid teeth：二峰齒

\\"二峰的;二尖的\\",\\"bicuspid\\" | \\"二峰齒\\",\\"bicuspid teeth\\" | \\"二尖瓣\\",\\"bicuspid valve; valvula bicuspidalis\\"

bicuspid teeth：雙尖牙,槽牙

bicuspid aortic valve 二葉式主動脈瓣,兩葉性主動脈瓣 | bicuspid teeth 雙尖牙,槽牙 | bicuspid valve 二尖瓣

premolars, bicuspid teeth：前磨牙

尖牙 cuspid teeth, canines | 前磨牙 premolars, bicuspid teeth | 磨牙 molars