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(duì)牙周膜細(xì)胞在牙周炎患牙牙骨質(zhì)根面上附著和增殖的影響亚洲色图综合图片偷拍。方法用EMP處理的牙周炎患牙根片為實(shí)驗(yàn)組一级作爱片网址，用生理鹽水處理的患牙根片和健康牙根片分別作為對(duì)照亚州黄色专区毛毛片。

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.

因此男女人精品视频站在线观看，本研究擬對(duì)牙根發(fā)育期相關(guān)間充質(zhì)干細(xì)胞的生物學(xué)特性進(jìn)行研究wwww.wwwww在线黄色视频，探討其作為種子細(xì)胞在牙根/牙周組織工程中應(yīng)用的可行性不卡A片在线看网站，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(xì)胞。

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

含2個(gè)根管的扁牙根形態(tài)較多發(fā)生牙根裂免费观看A级在线观看。牙本質(zhì)中的生長線是牙根組織結(jié)構(gòu)上的弱點(diǎn)观看永久免费视频污网站。

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、剪股穎和黑麥草的含硅量特黄视频，分別為209％美女视频黄是免费的、295％、285％亚洲黄一级色视频；積累量分別提高了240％黄色视频精品在线、364％亚洲欧美中文字幕你懂的、355％；施硅對(duì)草坪草狗牙根玖玖玖玖久久玖玖玖玖玖玖爱、剪股穎和黑麥草的干物質(zhì)積累有促進(jìn)趨勢日韩精品专区一区二区；在干旱的條件下，施硅抑制了草坪草的葉相對(duì)含水量的降低AV大全在线观看，延遲了葉片萎焉的時(shí)間黄色片看看一区二区，在干旱脅華中農(nóng)業(yè)大學(xué)2001級(jí)時(shí)一艷麗碩士學(xué)位論文迫第n天，與正CK相比四虎在线永久免费视频网站，施硅后狗牙根欧美精品日韩精品l视频、剪股穎和黑麥草分別只降低了 14%；16%精品自拍一区，32%特级一级黄色片。；施硅增加了狗牙根全部色费特色黄特色大片看片、剪股穎欧洲熟妇色ⅩXXXX欧美老熟妇、黑麥草在干旱條件下脯氨酸的含量，增強(qiáng)了滲透調(diào)節(jié)能力免费看欧美强奸视频，在干旱施硅的條件下亚洲啪啪网站，與正51相比，在干旱脅迫第11天色人人色人人操，狗牙根特级毛片A级毛片在线播放www、剪股穎和黑麥草脯氨酸的含量分別增加了2叨%、199%国产5加勒比区精品视频、473%好男人在线社区www视频；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相比欧美激情视频在线观看，第11天狗牙根和黑麥草的蒸散量分別降低了21%亚洲综合无码一区二区三区四区、呂%；在干旱的條件下天堂资源中文最新版，與干CK相比三级片电影九九热操，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%多人群p交换在线视频播放、5%日产顶级黄色片。

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(yán)重磨耗（77.4-88.2%）且扁平的牙根（61.8-75.8%）上a一级特黄不卡大片免费观看视频，以大臼齒的近心牙根發(fā)生率最高（64-85.7%）免费在线黄色视频网.AAA...，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，走向?yàn)檩^寬的近遠(yuǎn)心方向午夜影院妓女性爱视频，顯示牙根斷裂會(huì)沿著牙根較寬的方向發(fā)生国产美女在线精品网站；同時(shí)，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%）精品熟女碰碰人人A久久，牙根於比例上有較短小的特徵操国产熟女。

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，并以25℃為對(duì)照国产高清美女一级a毛片久久，比較低溫脅迫下欧美XX网，黑麥草和狗牙根超氧化物歧化酶、過氧化物酶A片区视频播放、脯氨酸和電導(dǎo)率的差異大色佬色色插入，結(jié)果表明，25℃時(shí)上述5個(gè)指標(biāo)差別不大亚洲欧美在线观看hh，5℃處理20h時(shí)精品久久人人摸，黑麥草和狗牙根的SOD活性均達(dá)到峰值，分別為處理4h時(shí)的2.88倍和2.87倍影音先锋在线观看日韩AV，但24h后狗牙根的SOD活性減少速率明顯大于黑麥草。

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(yàn)材料亚洲の无码热の综合，對(duì)其愈傷組織的誘導(dǎo)人人操操BB、分化以及農(nóng)桿菌介導(dǎo)轉(zhuǎn)化的關(guān)鍵因子進(jìn)行優(yōu)化，以此為基礎(chǔ)將除草劑抗性基因bar導(dǎo)入狗牙根中JiZZ成熟丰满熟妇，并對(duì)抗除草劑狗牙根的推廣應(yīng)用作了探討黄色视频在线观看免费最肉最A。

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(shí)驗(yàn)結(jié)果表明：(1)在膜透性的研究中，叢毛羊胡子草抗寒性最強(qiáng)优雅人妻与黑人性爱AV，采用電導(dǎo)率法測得半致死溫度LT_(50最低偷拍片第一页，叢毛羊胡子草抗寒鍛煉前后半致死溫度LT_(50均小于-11.5℃；在可溶性蛋白含量研究中日韩精品久久专区中文字幕，抗寒鍛煉前后三種植物的可溶性蛋白含量均增加可以免费看的AV网站，同時(shí)采用SDS-PAGE法，通過對(duì)蛋白條帶分析欧美一极，以叢毛羊胡子草條帶數(shù)最多且著色深男女羞羞在线永久免费观看；(2)在可溶性糖的研究中，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国产精品色哟，且經(jīng)過抗寒鍛煉后三種植物可溶性糖均呈下降趨勢天天色综合网址，叢毛羊胡子草可溶性糖含量下降較小特级毛片A片全部兔；從游離脯氨酸含量可知韩国美女黄色网站，低溫的脅迫影響了植物葉片游離脯氨酸的含量變化，植物的抗寒性與游離脯氨酸有關(guān)；低溫脅迫下三種植物葉綠素含量隨著溫度的下降国产一区在线视频免费观看，葉綠素含量黄色视频免费在线看、葉綠素a、葉綠素b和葉綠素a／b均呈下降趨勢黄啪啪啪，狗牙根對(duì)低溫脅迫最為敏感十八禁看黄色；(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(duì)值均大于狗牙根的www.gdmedicare.com，特別是過氧化物酶免费看欧美黄色网站，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)生率免费人妻aV无码专区、牙根發(fā)育溝之長度国产剧情在线一区、牙根發(fā)育溝至牙骨質(zhì)牙本質(zhì)交界的距離，以及牙根發(fā)育溝最深點(diǎn)的深度AV超碰A∨超碰AV超碰、占牙根長的位置a毛片在线观看、與到牙根根管的距離，并且將牙根分類為上顎第一大臼齒国内自拍99，僅一種分類99精彩视频这里有。

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(píng)價(jià)手用protaper預(yù)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例亚洲二区影音先锋五月天手机，隨機(jī)分成試驗(yàn)組和對(duì)照組各48例人人人人人人操人，試驗(yàn)組用手用protaper多錐度鎳鈦旋轉(zhuǎn)器械逐步伸入法預(yù)備根管，對(duì)照組用k銼得得爱性爱视频，逐步后退法預(yù)備根管黄色视频在线观看历史aaa，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線片欧美性生活视屏另类，評(píng)價(jià)后牙根管預(yù)備效果欧美精品性欧美。結(jié)果試驗(yàn)組無根管偏移、根尖阻塞日韩欧美一级视屏、臺(tái)階国产黄一级视频网站，且根管壁平滑流暢，無器械折斷等并發(fā)癥發(fā)生三级片a网站。對(duì)照組有2例臺(tái)階形成一级性爱视频免费看，器械折斷1例，根管偏移9例日本88黄网站。試驗(yàn)組操作時(shí)間短且術(shù)后疼痛輕微在线观看91香蕉国产免费。結(jié)論應(yīng)用手用protaper預(yù)備后牙根管快速、安全国产性交大全，成形效果好www.99riav45，易于根管沖洗消毒及填充性爱黄色视频欧美，可視為臨床上預(yù)備后牙根管的有效方法。