咬合

结果：66.3%的TMD患者有垂直向咬合异常，其垂直向咬合指数明显高于对照组（P0.05）；

Results : 66.3 % TMD patients had abnormal occlusion in vertical direction .

模拟咬合压力对人牙周膜成纤维细胞COX-2表达的影响

The influence of simulated occlusion pressure on the expression of cyclooxygenase-2 in human periodontal ligament fibroblasts

他得戴着牙箍矫正牙齿的咬合。

He has to wear a brace to correct his bite .

螺纹能牢牢地咬合卡紧。

The screw threads will be able to get a good grip .

随访3年无一例复发，牙齿无松动，咬合关系正常

After 3 years follow-up , there was no recidivism and loosening of tooth but normal occluding relation .

B多元渗可大大提高抗咬合和抗磨损能力以及热稳定性和使用寿命。

B multi-cementation process improves greatly the anti-seizure ability , wear endurance , thermal stability and service life of tool steel .

牙齿的咬合感觉、重量觉及位置觉识别能力前牙均明显高于后牙（P＜0.01）。

The occlusal sensation and the topognosis of anterior teeth are more delicate than that of posterior teeth ( P < 0.01 ) .

反应层1与SiC形成了紧密的连接，反应层1/反应层2界面处各相相互咬合在一起。

The two reaction layers both bonded to each other and to SiC tightly .

结果：应用口外弓配合唇档推磨牙向远中3～6个月后，II类咬合关系恢复至安氏I类关系。

Results After being used extraoral arch and lip bumper 2 to 6 months , occlusal relationship came back class I.

咬合创伤大鼠三叉神经节中PPTAmRNA表达的变化

Expression of PPTA mRNA in trigeminal ganglion in rat during occlusal trauma

结论：垂直向咬合异常与TMD临床表现有密切关系。

Conclusion : Abnormal occlusion in vertical direction is correlated with TMD symptoms .

X射线片显示，咬合创伤1个月组创伤侧下颌磨牙牙周膜增宽，牙槽骨有少量吸收。

As shown by X - ray films , periodontium of lower jaw molar widened and alveolar bone was absorbed a little in 1 - month trauma group .

颞下颌关节组织所承受的负荷主要来源于咬合运动，咬合与TMJ的功能关系密切。

The functional load of temporomandibular joint ( TMJ ) is mainly from dental-occlusion .

MMP-3在咬合创伤牙周组织中的表达

Expression of MMP-3 in periodontium with traumatic occlusion

颞颌关节（TMJ）是一个结构复杂的左右联动关节，是咬合时承受咬合力的部位。

Temporomandibular joint ( TMJ ) is one of the most complicated joints , which belongs to synovial joints .

目的动态分析正常牙合者从肌位（MP）到牙尖交错位（ICP）咬合的变化过程。

Objective To study the biting process from muscular position ( MP ) to intercus-pal position ( ICP ) dynamically in the normal occlusion subjects .

结果：有过早接触的患者在两种咬合力下，左右侧单颌咬合接触点数目、面积之差绝对值均高于正常受试者（P＜0.05）。

The results indicated : Under light and medium pressure , absolute values of the difference between number , area of occlusal contacts on the left and the right at different thickness had notable differences between the normal and the patients .

方法：对42例伴错、牙移位、牙缺失的牙周炎患各，用Tip－Edge技术矫治，结台修复及牙周治疗手段，消除创伤，建立正常咬合关系，随访1年观察其疗效。

Methods : 42 periodontitis patients with malocclusion teeth displacement and partial edentia were treated with Tip-Edge technique , restoration and periodontal treatment to dismiss the occlusion overburden and to rebuild normal occlusion . One year fellow-up were done .

结果：患者戴用Twin-block矫治器3-8个月后，咬合关系获得明显改善；

Results : After using Twin-block Appliances 3 to 8 months , occlusal relationship and profile improved .

结论：渐进性咬合紊乱可导致髁突退性形变，髁突软骨中TGFβ1表达明显增强，TGFβ1可能参与了关节软骨的修复活动。

Conclusion : Gradually induced occlusal disorder can lead to degenerative changes in monkey temporomandibular joint with increased TGF β 1 expression in condylar cartilage . TGF β 1 may participate in cartilage repairing during the procedure .

T-scanⅡ咬合分析仪记录结果可重复性的临床评价

Clinical evaluation of the reproducibility of T-scan ⅱ computerized occlusal analysis system

CMD-TMJ重症与咬合异常197例患者（72%）咬合异常，其中68%为TMJ重症；

Relationship between severe TMJ lesions and abnormal occlusion 197 patients ( 72 % ) had abnormal occlusion and 68 % of them were cases with severe TMJ lesions .

方法：以正常咬合、青年尸体头颅为标本，用CT断层和手工断层相结合的方法分别建立下颌骨及TMJ硬、软组织模型，并给髁突赋予实验测得的正交各向异性参数；

Methods : A young skull with normal occlusion was adopted for CT scanned transverse section and manual slice section to establish hard and soft tissue of TMJ respectively , in which the condyle was defined as orthotropic material .

目的检验T-scanⅡ咬合分析仪记录结果的可重复性。

Objective To evaluate the reproducibility of records of T-scan ⅱ computerized occlusal analysis system .

研究表明，FHP对牙齿咬合以及下颌的功能运动有着影响。

Studies showed that FHP has the influence to the tooth occlusion as well as functional mandibular movement .

结果：调牙合治疗后咬合接触点明显增加，且双侧趋于平衡接触，VAS指数明显降低，由原来5.3降为1.9，临床症状得到明显改善。

Results : The number of occlusal contact points increased obviously after occlusal adjustment , and distribution of contact on two sides tended to be balanced . Pain release was indicated by VAS table .

高度为5mm和7mm的咬合板降低咀嚼肌肌电的能力较3mm咬合板更强。

The occlusal splints of 5 mm and 7 mm have stronger ability of decreasing the electrical activity of masseter muscle than 3 mm splints .

模拟最大咬合力600N垂直加载于全瓷冠模型咬合面。

A loading of 600 N , simulating the maximum bite force was applied vertically to the crowns .

目的研究NFκB受体活化因子配体（RANKL）和骨保护蛋白（OPG））mRNA在咬合创伤大鼠牙槽骨组织中的相对表达水平，探讨RANKL和OPG在咬合创伤牙槽骨改建中的意义。

Objective To investigate the expression change of receptor activator of NF κ B ligand ( RANKL ) and osteoprotegerin ( OPG ) mRNA in rat alveolar bone and the possible mechanism of alveolar bone resorption under traumatic occlusion .

方法将Begg矫正技术中的有后倾弯的唇弓改良，放于方丝弓托槽的龈方，结扎丝将其悬吊于托槽上，再通过适当Ⅱ类牵引和下颌的颌内牵引，打开咬合。

Materials and methods Begg tip-back arch wire was ligated to the gingival side of edgewise brackets and Class ⅱ elastics were used .