牙磨损

方法：对1033名上海市成年人进行牙磨损指数（TWI）的检查，同时填写调查问卷。

Method : 1033 adults in Shanghai were clinically examined according to the tooth wear index ( TWI ) and questionnaires were completed .

树脂卡环对牙面的磨损程度小于Co-Cr卡环。

The abrasion of resin clasp on the tooth surface is less than the Co-Cr clasp .

目的：探讨长期咀嚼槟榔与牙体磨损的关系。

Objective To investigate the relationship between tooth abrasion and long-term chewing betel nut .

咀嚼槟榔习惯与牙体磨损关系的临床研究

Clinical study on the relationship between tooth abrasion and the habits of chewing betel nut

四环素牙摩擦磨损行为的研究

Tribological behaviors of tetracycline stained teeth

人工唾液和碳酸饮料长期浸泡处理对树脂牙摩擦磨损性能影响很小；

The immersion of the plastic teeth samples in the artificial saliva or carbon beverage had little effect on the tribological behavior .

30d及60d组可见受伤牙咬合面磨损，根尖X片显示牙颈部牙周膜腔增宽。

Abrasion and widen periodontium ligament were detected on the occlusal surface and X Ray photos respectively both on 30 and 60d group .

天然牙的摩擦磨损行为与年龄密切相关。

Tribological behavior of human tooth depends strongly upon its age .

天然牙的腐蚀磨损行为与其微观结构密切相关。

Erosive wear behaviors of a tooth are closely associated with its microstructure .

与健康恒牙相比，轻度四环素牙的摩擦磨损行为无明显变化；

Friction and wear behaviors of lightly tetracycline stained teeth are similar to those of normal permanent teeth .

不同牙位牙齿磨损程度不同，下颌第一磨牙与下颌中切牙的磨损程度最重。

Different teeth of different tooth abrasion , mandibular first molar and mandibular incisor the abrasion are the most .

结果不同牙位牙齿的磨损度从0.85±0.65到2.59±1.02不等。

RESULTS : The score of mean attrition of tooth was from 0.85 ± 0.65 to 2.59 ± 1.02 in different position .

目的：通过调查湖南省15岁及15岁以上人群中牙齿磨损情况及咀嚼槟榔情况，以研究年龄、性别、咀嚼槟榔、牙位与牙齿磨损的关系，为牙齿磨损的病因及预防提供科学依据。

Objective : Through the investigation of the situation of the tooth abrasion and betel nut chewing of the over 15 years-old and 15 years-old people , so as to study the relationship between the tooth abrasion and the situation of the age , sex , betel nuts chewing .

结果表明：天然牙和树脂牙在不同磨损工况下的摩擦磨损行为存在显著差异；

It was found that the natural teeth and the plastic teeth all showed different tribological behaviors in two - and three-body abrasion .

结论：制作全口金属牙合垫修复牙列磨损及缺失，虽然难度系数较大，但目前仍不失为一种良好的齿科临床修复方法。

Conclusion Fabricating complete metal occlusal pad , though the difficulty coefficient is big , is still a good dental clinical restoration method at present .

方法对15例由于牙列缺损、余牙严重磨损等原因导致颞下颌关节紊乱病患者，应用义齿式牙合板修复缺牙，以恢复正常息止颌间隙、改善咀嚼功能。

Methods Fifteen cases suffered from TMD accompanied by anodontia and serious dental abrasion were treated by occlusal splint removable denture .

目的探讨用义齿式牙合板治疗伴有牙列缺损和牙体磨损的颞下颌关节紊乱病的效果。

Objective To investigate clinical the effect of occlusal splint removable denture on temporomandibular joint disorder ( TMD ) with anodontia and serious dental abrasion .