成人多发性乳牙滞留散在间隙一例烤瓷冠修复报告

成人多发性恒牙胚缺失较为少见,乳牙是否保留,该如何处理才恰当是笔者遇到的一个新问题。前牙多数恒牙胚缺失并伴有散在间隙,单纯正畸治疗或是单纯修复治疗无法取得满意效果。采取正畸和修复结合的方法能取得良好效果。     

改良暂基托在低平牙槽嵴全口义齿修复中的临床应用

目的：探讨改良暂基托在低平牙槽嵴无牙颌患者修复中的临床应用。方法选取40例低平牙槽嵴无牙颌患者,分为两组,分别采用改良暂基托（观察组）和传统蜡基托（对照组）确定颌位关系,进行全口义齿修复。修复后定期进行随访,评价修复效果,对数据进行统计分析。结果观察组患者在固位和压痛点等方面满意度与对照组差异有统计学意义（P＜0．05）。结论改良暂基托可以作为低平牙槽嵴无牙颌患者修复的常规暂基托。     

Gluma脱敏剂对牙本质黏结强度影响的系统评价

BACKGROUND: Desensitization agent is widely used to relieve tooth sensitivity after tooth preparation. However, some components in the desensitization agent for certain affect the dentin bond strength between prosthesis and dentin. Given this, choosing a proper desensitization agent is under discussion. OBJECTIVE: To investigate the influence of Gluma desensitizing agents on bond strength to dentin by Meta-analysis. METHODS: A computer-based retrieval of PubMed, EMbase, EBSCO EDLINE, The chrane Library, ScienceDirect, Web Of Science, OVID, CBMbase, CJFD, CqVip and WanFang databases combined with manual searching was performed for randomized controlled trials or controlled clinical trials about effect of desensitizing agents on dentin bond strength. The retrieval time ranged from the creation date to June 18, 2016, without region and language limits. In accordance with inclusion/exclusion criteria, related data were extracted, and the qualitative and quantitative analysis of the included studies was performed by two researchers independently, and then the Meta-analysis was conducted using RevMan 5.2 software. RESULTS AND CONCLUSION: There was no significant difference in the shear bond strength of self-etching or total-etching adhesive to dentin between two groups, and the same results were found when comparing the shear bond strength of self-etching and total-etching adhesive to dentin. The Gluma had a beneficial effect on the shear bond strength of self-adhesive. These results indicate that when Gluma used as the desensitizing agent, self-adhesive materials are the first choice, and secondly the self-etching or total-etching adhesive materials containing acid or able to dissolve protein crystals are preferred.     

全瓷材料与金属烤瓷材料固定修复临床疗效对比观察

目的探讨分别应用全瓷材料和金属烤瓷材料开展固定修复的疗效。方法采用分层抽样法抽选64例需行牙体修复的患者纳入本次实验,并采用均等双盲划分法将其中32例纳入对照组(予以金属烤瓷冠修复术),剩余32例纳入观察组(予以全瓷冠修复术),比较两组的临床疗效和并发症。结果观察组治疗有效使用率比对照组更高,并发症比对照组更少(P0.05)。结论和金属烤瓷材料对比,选择全瓷材料开展固定修复的疗效更佳,能减少牙龈变色和牙龈炎出现,值得采用。     

学生“输出方式”对直播教学效果的影响

目的：引导学生采用不同的“输出方式”在参与口腔修复学的直播教学,观察不同“输出方式”的教学效果。方法：选取2016级口腔医学专业80名学生作为研究对象,将其随机分成对照组(A组,20名)和实验组(B1组、B2组、B3组,各20名)。分别在直播课中、课后进行评估考核与问卷调查。结果：(1)实验组学生的课堂输出质量、课后考核成绩均高于对照组学生,差异有统计学意义(P<0.05);(2)输出方式之间对比发现,文字和视频更容易引起学生的重视。结论：以输出方式为导向,引导学生进行学习,有利于提高学生的学习能力和输出能力。输出方式可以优先选择文字输出和视频输出。