第三磨牙

下颌阻生第三磨牙X线片检查及处理下颌低位阻生第三磨牙竖直前的螺旋CT三维重建定位研究

Clinical Application of Three Dimensional Reconstruction Technique of Spiral CT in Locating the Impacted Mandibular Third Molar with Uprighting Appliance

用U检验来比较两组患者第三磨牙倾斜度在治疗前后的变化。

Changes in third molar angulations from pretreatment to posttreatment for two groups were compared by Mann-Whitney U-test .

4周后，以同样方法推左侧上颌与右侧下颌第三磨牙（M3）向远中移动，保持间隙至实验结束。

After 4 weeks , the left upper third molar and the right lower third molars were moved distally and then the gap was kept too .

26.13%的上颌第三磨牙为颊向位，明显多于下颌第三磨牙的10.38%（P0.01）。

26.13 % of 111 maxillary third molar teeth arranged buccally , more frequent than the mandibular third molar teeth ( 10.38 % of 106 ) ( P 0.01 ) .

下颌第三磨牙阻生的发生率与近中倾斜角呈正相关（P0.01），而与磨牙后间隙呈负相关（P0.01）。

There was a strong positive relationship between frequency of third molar impaction and angulation degree ( P0.01 ), but the former was inversely associated with retromolar space ( P0.01 ) .

缺牙数目均在6颗以上，少于6颗时通常被称之为牙齿发育不全（hypodontia）（均不包括第三磨牙）。

The number of missing teeth are more than six , less than six are usually referred to tooth agenesis ( hypodontia ) ( excluding third molars ) .

方法：对198例下颌第三磨牙垂直阻生分别用CO2激光、CO2+Nd：YAG激光和半导体激光进行冠周龈瓣切除，术后随访5d，观察治疗效果。

METHODS : The pericoronal flap of the impacted tooth in 198 cases was evaporated by CO2 laser , CO2 plus ND : YAG laser and semiconducting laser respectively . The patients were followed - up in 5 days and the effects of the treatment methods were compared .

目的：观察S－100蛋白和胶质酸性蛋白（GAFP）的阳染神经纤维在人第三磨牙的分布。

Aim : To investigate nervous elements in the dental pulp of human third molars by means of immunohistochemistry for S-100 and glial acidic fibrillary protein ( GAFP ) .

6颗第三磨牙作健康对照。

The 6 wisdom teeth were selected as the healthy control .

方法：釉质样本取自成人第三磨牙。

METHODS : Enamel was distilled from mature human third molars .

新石器时期人类与现代人类第三磨牙牙体测量及阻生情况的比较研究

Comparative study of the third molar between Neolithic and modern population

舌神经在下颌第三磨牙区的毗邻关系及其临床意义

Anatomic relations of lingual nerve in the mandibular third molar region

成人下颌第三磨牙先天性缺失的调查与分析

A research of the absence of the third mandibular molar

下颌第三磨牙拔除后疼痛患者的脑激活区研究

Cerebral responses in patients suffering from post-mandibular third molar-extraction pain

中老年患者与第三磨牙相关的口腔疾病

Oral diseases associated with third molar in middle-aged and the elderly patients

500例阻生下颌第三磨牙的形态观察及临床意义

Impacted mandibular third molar & clinical observation of 500 cases

牙齿因素对下颌第三磨牙萌出的影响

The influence of dental factors to eruption of the mandibular third molar

160例下颌阻生第三磨牙X线影像分析

X-ray Image Analysis of 160 Cases of Mandibular Impacted Third

大学生第三磨牙萌出情况调查

A survey on eruption of the third molar in the college students

下颌第三磨牙牙尖数与牙根数的关系研究

Relation between the cusps and roots of mandibular third molars

冠周炎的发生与下颌第三磨牙位置的相关研究

Correlation study of pericoronitis and position of mandibular wisdom tooth

运用逐步回归分析预测未萌第三磨牙冠宽

Prediction of the third molar coronal size of canines by stepwise regression analysis

下颌第三磨牙阻生组中近中倾斜角平均为48。

The average mesio-angulation of the third molars in the impacted group was48 .

全颌曲面断层片评价影响第三磨牙萌出因素的研究

A clinical study of panoramic radiograph evaluating the effects on third molar eruption

第一前磨牙减数治疗对第三磨牙角度和萌出间隙的影响

The effect of first premolar extraction on third molar angulation and eruption space

颊侧径路在下颌水平阻生第三磨牙拔除术中的临床应用

Clinical application of buccal path in removal of horizontal impacted mandibular third molars

结论引流能减少下颌阻生第三磨牙拔除后并发症的发生。

Conclusions Sluice can reduce postoperative complications after removal of mandibular third impact molars .

下颌第三磨牙阻生两种拔除术的并发症比较

Comparative Analysis of the Complications by Two Extraction Methods of Impacted Mandibular Third Molars

成人下颌骨第三磨牙阻生关系的研究

A Study of the Relationship Between the Mandible and the Impacted Mandibular Third Molar

高速涡轮钻在下颌阻生第三磨牙拔除中的临床应用

The clinical application of high speed turbodrill to extraction of impacted mandibular third molars