Objective To evaluate the effect of enamel matrix protein on the attachment and proliferation of periodontal ligament cells on diseased cementum surfaces in vitro.

目的觀察釉基質(zhì)蛋白對牙周膜細胞在牙周炎患牙牙骨質(zhì)根面上附著和增殖的影響。方法用EMP處理的牙周炎患牙根片為實驗組，用生理鹽水處理的患牙根片和健康牙根片分別作為對照。

Then we hypothesize that mesenchyma stem cells from DAC are heterology,which have the potential ability to regenerate root/periodontal complex structures as a new kind of seed cells. Therefore, this study focuses on characteristics of the mesenchyma stem cells at tooth root developing stage and the evaluation of the possibility of being seeds cells.

因此日韩第一区自拍视频在线观看网站，本研究擬對牙根發(fā)育期相關間充質(zhì)干細胞的生物學特性進行研究，探討其作為種子細胞在牙根/牙周組織工程中應用的可行性特一级AAAAAA色，以期為組織工程化牙根/牙周組織構(gòu)建優(yōu)選新的種子細胞户外露出国产一区。

The fractures of roots were associated with morphology of roots and incremental lines in dentine.

含2個根管的扁牙根形態(tài)較多發(fā)生牙根裂。牙本質(zhì)中的生長線是牙根組織結(jié)構(gòu)上的弱點久久热免费视频。

Pereme , separately are 209%,295%,285%; the increasing of accumulating amount separately are 209%,295%,285%; The use of silicon has a tread to rise dry weight of Bermudagrass ,Agrostis Lolium. Pereme ; Under the drought condition , the use of silicon suppressed the reducing of the relative water content of leaf in turfgrass , delaying the time of wither , stress for the 11th day in the drought .compared with water normally and not using silicon ,after use silicon, the RWC of Bermudagrass , Agrostis Lolium. Pereme only separately depressed 14%,16%,32%; Under the drought condition ,the use of silicon can increased the content of proline of Bermudagrass ,Agrostis Lolium. Pereme, stress for the 11th day in the drought and using silicon , compared with water normally and ueing silicon, the content of Pro separately increased 203%,199%,473%;The using of silicon depressing the ET of Bermudagrass and Lolium. Pereme.Under water normally condition, separately depressed 21%,8% at eleven days ;Under drought condition , separately depressed 17%,5%.

施硅增加了草坪草狗牙根国产性爱三级免费小视频、剪股穎和黑麥草的含硅量，分別為209％在线观看视频,你懂的、295％国产三级电影网站、285％；積累量分別提高了240％一本大道黄色视频、364％bbixxcon、355％；施硅對草坪草狗牙根最近2018中文字幕MV、剪股穎和黑麥草的干物質(zhì)積累有促進趨勢；在干旱的條件下欧美妓女视频，施硅抑制了草坪草的葉相對含水量的降低精品性欧美牲交在线视频，延遲了葉片萎焉的時間，在干旱脅華中農(nóng)業(yè)大學2001級時一艷麗碩士學位論文迫第n天三级片免费网址，與正CK相比偷窥精品视频国产免费，施硅后狗牙根、剪股穎和黑麥草分別只降低了 14%a一黄色网；16%在线欧美三级片，32%。国产白白视频在线观看；施硅增加了狗牙根欧美视频精品二区、剪股穎久久机这里只有精品、黑麥草在干旱條件下脯氨酸的含量，增強了滲透調(diào)節(jié)能力亚洲性色狠操，在干旱施硅的條件下男女无遮挡全过程免费视频，與正51相比，在干旱脅迫第11天人人艹在线视频，狗牙根cao美女视频、剪股穎和黑麥草脯氨酸的含量分別增加了2叨%、199%看久久久久久久一级毛片、473%精品久久久黄视频网站；施硅減少了狗牙根和黑麥草的蒸散量在正常澆水的條件下，與正CK相比在线免费观看a级毛片，第11天狗牙根和黑麥草的蒸散量分別降低了21%无码一级做a爱过程免费视频、呂%；在干旱的條件下玖玖www，與干CK相比美女视频性色毛片全是黄色的，在干旱脅迫的第11天，狗牙根和黑麥草的蒸散量分別降低了17%18禁黄网站禁片免费观看女女、5%人人操,人人草。

Using stereomicroscope, we observed the fracture line direction and location as well as the angle between the fracture line and the attrite plane. The data was compiled into statistics and analyzed. The results revealed that most of the vertical root fractures occurred in teeth with severe attrite crown and flat root. Numerous bucco-lingual oriented fractures occurred in the mesial root of molars, and we found three non-endodontically treated cases with mesio-distal oriented fractures in the palatal roots.

結(jié)果發(fā)現(xiàn)，兩組的垂直牙根斷裂均好發(fā)於牙冠嚴重磨耗（77.4-88.2%）且扁平的牙根（61.8-75.8%）上人人摸人人操日日碰，以大臼齒的近心牙根發(fā)生率最高（64-85.7%）免费日韩黄色片品尚网，多為頰舌側(cè)走向（91.2-91.9%），且於未根管治療組別亦發(fā)現(xiàn)三例腭側(cè)根斷裂91在线精品亚洲第一区香蕉99，走向為較寬的近遠心方向精品视频国产狼友第28页，顯示牙根斷裂會沿著牙根較寬的方向發(fā)生；同時国产刺激福利在线，未經(jīng)根管治療而產(chǎn)生垂直牙根斷裂的牙齒具有根叉位置較低的現(xiàn)象（61.8%）性欧美野外激情，牙根於比例上有較短小的特徵。

Compared with the temperature of 25℃, the difference of the enzyme activity of SOD and POD, contents of PRO and REL of Festuca Lolium perenne L. and Cynodon dactylon at the temperature of 5℃ had been studied. The results showed that the 4 indexes above had less difference at the temperature of 25℃; after 20h treatment at the temperature of 5℃, the activities of SOD of Lolium perenne L.

用5℃低溫處理黑麥草和狗牙根72式免费一级A片视频播放器，并以25℃為對照女生被男生操的黄色网站，比較低溫脅迫下，黑麥草和狗牙根超氧化物歧化酶2018亚洲欧洲中文无码、過氧化物酶A片网站视频在线观看、脯氨酸和電導率的差異，結(jié)果表明亚州精品在线，25℃時上述5個指標差別不大人人操午夜精品，5℃處理20h時，黑麥草和狗牙根的SOD活性均達到峰值，分別為處理4h時的2.88倍和2.87倍免费一级毛片线在线播放，但24h后狗牙根的SOD活性減少速率明顯大于黑麥草国产在线AAAAAA片。

The major factors for callus induction, differentiation, and Agrobacterum-mediated transformation were investigated in the current paper, using the creeping stem nodes of Cynodon dactylon as the original materials.

以主要暖季型草坪草狗牙根的匍匐莖節(jié)為試驗材料，對其愈傷組織的誘導www一级www刺激黄片、分化以及農(nóng)桿菌介導轉(zhuǎn)化的關鍵因子進行優(yōu)化日本jizzjizz，以此為基礎將除草劑抗性基因bar導入狗牙根中，并對抗除草劑狗牙根的推廣應用作了探討国产精品露出走光福利。

There are experimental results as follows:(1) Eriophorum comosum Nees shows strong cold resistance in plasmalemma permeability research. The lethal temperature of Eriophorum comosum Nees is the lowest LT_(50 in comparison with another two plants and is lower than -11.5℃ in August 2005 and December 2005; Soluble protein content of each plant is rising before or after cold hardiness. By SDS-PAGE, Protein band is analysed. Band quantity of Eriophorum comosum Nees is the most and its band color is darkest.(2) Soluble sugar content of three plants after cold hardiness are higher than before cold hardiness, moreover soluble sugar content after cold hardiness shows a decline and there is a narrow range in Eriophorum comosum Nees; Free Proline accumulation is changed by cold stress, and cold resistance is relative to free Proline accumulation; chlorophyll content of both three plants, including chlorophyll a, chlorophyll b and chlorophyll a/b, show a decline tendency along with the descent of temperature. Cynodon dactylon is highly sensitive to cold stress.(3) The soil POD and urease activities' absolute value of Erioophorum comosum Nees and Pogonatherum panideumHack were more than that of Cynodon dactylon before or after low temperature stress, especially POD activities.

實驗結(jié)果表明：(1)在膜透性的研究中欧美中文字幕日韩综合，叢毛羊胡子草抗寒性最強，采用電導率法測得半致死溫度LT_(50最低国产又黄又粗又长又刺激视频，叢毛羊胡子草抗寒鍛煉前后半致死溫度LT_(50均小于-11.5℃日韩精品免费手机版在线观看；在可溶性蛋白含量研究中，抗寒鍛煉前后三種植物的可溶性蛋白含量均增加黄在线观看www页站，同時采用SDS-PAGE法人人澡人人摸人人舔人人看，通過對蛋白條帶分析，以叢毛羊胡子草條帶數(shù)最多且著色深日韩欧美国内自拍视频；(2)在可溶性糖的研究中在免费jIzzjIzz在线视频网址，三種植物經(jīng)抗寒鍛煉后葉片可溶性糖含量都比抗寒鍛煉前高，且經(jīng)過抗寒鍛煉后三種植物可溶性糖均呈下降趨勢日本黄页网战，叢毛羊胡子草可溶性糖含量下降較蠥V-级福利黑白配久久。粡挠坞x脯氨酸含量可知看片在线，低溫的脅迫影響了植物葉片游離脯氨酸的含量變化黄片mmm播放，植物的抗寒性與游離脯氨酸有關；低溫脅迫下三種植物葉綠素含量隨著溫度的下降黄私密在线看av，葉綠素含量人人摸人人干、葉綠素a、葉綠素b和葉綠素a／b均呈下降趨勢办公室丝袜激情无码播放黄色工厂，狗牙根對低溫脅迫最為敏感99r视频国产在线观看免费；(3)低溫鍛煉前后，叢毛羊胡子草和金發(fā)草的土壤過氧化物酶與脲酶活性的絕對值均大于狗牙根的国产精品久久久久影院色麻豆，特別是過氧化物酶A级片，說明叢毛羊胡子草和金發(fā)草的酶活性大于狗牙根的。

Maxillary second molar has five subtype, Type A: absence of root fusion, Type B: presence of mesiobuccal and distobuccal root fusion, Type C: palatal root with anyone of buccal root fusion of molar with three roots, Type D:complete root fusion of molar with three roots, Type E:pseudofusion of molar.

分析其牙根發(fā)育溝之發(fā)生率在线播放最新国产精品、牙根發(fā)育溝之長度、牙根發(fā)育溝至牙骨質(zhì)牙本質(zhì)交界的距離jizzjizz日本在线，以及牙根發(fā)育溝最深點的深度WWW.AV天堂2017、占牙根長的位置、與到牙根根管的距離欧美指交视频在线观看，并且將牙根分類為上顎第一大臼齒黄色网站短视频不卡，僅一種分類黄片视频吗。

objective to evaluate clinical effect of the handling protaper nickel-titanium rotary instruments in preparation of canals of posterior teeth.methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling protaper rotary instruments using step-down technique,and by k files using step-back technique for control.all teeth were obturated with lateral condensation methods.the efficiency of preparation was analyzed with ra-diographs before and after operation.results no transportation,apical blockage and ledge were found in test.the technique could keep canals smooth.there were two ledge,one instrument fracture and nine transportation in control.the operative time was shorter and post treatment pain seldom occurred in handling protaper group.conclusion the handling protaper niti rotary instruments can prepare the canals effectively and safety.after the preparation,the canals could be easily washed,sterilized and filled.it is an efficient instrumentation method for posterior teeth's canals and be used widely.

目的 評價手用protaper預備后牙根管的臨床效果。方法選取患有牙髓炎和根尖周炎的后牙96例美女让男人爽高潮免费视频，隨機分成試驗組和對照組各48例欧美激情黑人，試驗組用手用protaper多錐度鎳鈦旋轉(zhuǎn)器械逐步伸入法預備根管，對照組用k銼清风阁视频我爱，逐步后退法預備根管毛片直播在线，兩組均用側(cè)向加壓充填法充填根管，根據(jù)治療前后的x線片日韩精品中文国产字幕，評價后牙根管預備效果久久久久99。結(jié)果試驗組無根管偏移、根尖阻塞aaaaaa级黄片、臺階天堂大秀一级黄片，且根管壁平滑流暢，無器械折斷等并發(fā)癥發(fā)生h色网站在。對照組有2例臺階形成一级av无码，器械折斷1例，根管偏移9例激情一级片。試驗組操作時間短且術后疼痛輕微国产尤物视频一区。結(jié)論應用手用protaper預備后牙根管快速、安全色黄乱婬伦免费网站耙，成形效果好亚洲欧美日韩人人操久久，易于根管沖洗消毒及填充，可視為臨床上預備后牙根管的有效方法亚洲欧美视频一区。

apical elevator：牙根尖梃

apical 尖,尖端,頂點 | apical elevator 牙根尖梃 | apiciform 尖形

nerve broach：牙根針醫(yī)藥耳目口

12106牙根人類人體各部tooth fang or root | 12107牙根針醫(yī)藥耳目口nerve broach | 12108牙根針柄醫(yī)藥耳目口broach holder

PEACH: Root canal--a doozy：鉗除牙根,非常精采

[28:11.04]-Hey, Nigel. -What did I miss? -嗨,大嘴鴿 -都做了什么?我來晚... | [28:13.01]PEACH: Root canal--a doozy. 鉗除牙根,非常精采 | [28:14.21]Root canal? What did he use to open? 鉗除牙根是嗎? 用什么...

PEACH: Root canala doozy：填充牙根而已......這次手工不錯

Hey, Nigel. What did I miss? 嘿,大口祖 有什么好事情?來遲了 | PEACH: Root canala doozy. 填充牙根而已......這次手工不錯 | Root canal? What did he use to open? 又填充牙根?用什么鉆?

root facer：牙根面銼

root extractor 牙根鉗取器 | root facer 牙根面銼 | root forceps 牙根鉗

root trimmer：牙根管修整鉆

root scaler 牙根刮器 | root trimmer 牙根管修整鉆 | rope 繩,索,線

apicoectomy：牙根尖切除術

root amputation 根切斷術,齒根切斷術:從一多根牙切除一個或一個以上牙根,但至少留下一個牙根,以支持牙冠,若僅切除一個牙根之尖部,則稱(牙)根尖切除術(apicoectomy)

Cynodon dactylon：狗牙根

]Mildland bermudagrass 米蘭狗牙根[狗牙根( Cynodon dactylon) 的栽培種,較耐冷,但抗病力較差]milo (Sorghum vulgare var. subglabrescens) 飼用高粱,黃蘆粟 [禾本科一年生飼用植物,較一般高粱耐旱,為現(xiàn)在高粱早期原始品種,原產(chǎn)熱帶非洲,

radectomy：截根手術 病牙牙根部分切除術

radeconveyer 耙式輸送機 | radectomy 截根手術 病牙牙根部分切除術 | radectomylradiectomy 牙根切除術

root canal, pulp canal：牙根管

牙根||root of tooth | 牙根管||root canal, pulp canal | 牙根尖||apex of root of tooth