检索结果-南通市图书馆

Discussion on prosthodontics teaching methods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Technology Management 2015年第8期 32-34页

作者： Guanwu Rao Hubei University Of Science And Technology Xianning 437100 China

prosthodontics is one of the main courses of oral clinical oral compulsory medical students, and it is a highly practical skill required for the course. In the teaching process, we not only should pay attention to the teaching of theoretical knowledge, but should strengthen the training of practical skills. In order to improve the teaching quality of experimental teaching and students＇ practical ability, we reform the method of experimental evaluation in prosthodontics experimental teaching, explore the establishment of a reasonable, applicable and effective experiment prosthodontics assessment methods.

关键词： prosthodontics teaching methods Discussion

Application of Evidence-based prosthodontics in Practice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际口腔医学杂志 2006年第5期33卷 333-336页

作者： LEI Yu ZHU Zhi-min CHAO Yong-lie SHI Zong-dao MENG Yu-kun Dept. of prosthodontics West China College of Stomatology Sichuan University Chengdu 610041 China Dept. of Oral and Maxillofacial Surgery West China College of Stomatolo~ Sichuan University Chengdu 610041 China

The concepts and progress of evidence-based dentistry were introduced in this critical review. An extensive PubMed search was conducted to provide sound evidences for some frequently encountered problems in prosthodontic daily practice. Conlusively, it is important for prosthodontists to keep current by looking for efficient ways of interpreting high quality evidences to clinical practice.

关键词： prosthodontics prosthetic dentistry evidence-based medicine

Low-temperature Degradation of Zirconia-based All-ceramic Crowns Materials: A Mini Review and Outlook

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2016年第7期32卷 593-596页

作者： Huazhe Yang Yang Ji Department of Biophysics School of Fundamental Sciences China Medical University Department of Stomatology General Hospital of Shenyang Military Area Command

Zirconia-based bioceramics have been widely applied in the field of prosthodontics owing to its desir- able mechanical performance, biocompatibility and aesthetics. However, the low-temperature degradation （LTD） of tetragonal zirconia （ZrOJ under intraoral condition can lead to the deterioration of mechanical properties of ZrO2 dental crowns, which contribute to many clinical failures in long-term observations. The long-term tetragonal phase stability and mechanical properties of yttria-stabilized tetragonal zir- conia polycrystal （Y-TZP） are influenced by grain size of ZrO2 crystals, distribution and properties of stabilizers, the humid environment, etc. However, it is still difficult to control the abovementioned factors at the same time. This review summarizes the major advances in researches dealing with LTD and clari- fies the obstacles to stabilization of the tetragonal ZrO2. Furthermore, the suggestions on improving the LTD resistance of tetragonal ZrO2 are proposed, which is the catalyst to promote the long-term stability of ZrO2-based all-ceramic crowns.

关键词： Zirconia prosthodontics Low-temperature degradation Tetragonal phase

Assessment of undergraduate students’ tooth preparation for full veneer cast restorations

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2014年第2期4卷 43-48页

作者： Nuha El-Mubarak Neamat Abu-Bakr Osama Omer Yahia Ibrahim Department of Oral Rehabilitation Faculty of Dentistry University of Khartoum Khartoum Sudan Department of Restorative Dentistry and Periodontology Dublin Dental School and Hospital Dublin Ireland

Purpose: To evaluate tooth preparation for full veneer cast restorations performed by final year dental students in Sudan. Materials and Methods: 117 stone dies from two different dental institutions were collected and evaluated. Polyvinylsilioxane impression material was used to produce two impressive replicas of which one was sectioned in faciolingual plane and the other in mesiodistal plane. Occlusal clearance was measured using a digital caliper. Amount of axial preparation was also measured. Impression silhouettes that were produced using an overhead projector were used to measure convergence angle. Working casts were examined for smoothness and evenness of the preparations, existence or absence of additional features of retention and the finishing line were evaluated for its position and continuity. All obtained data were statistically analyzed by using T-test, ANO-VA, and Pearson Chi square tests. P-values ≤ 0.05 were considered as statistically significant. Results: Average taper of the examined preparations was 39.98?, with 44.1? in the faciolingual, and 35.8? in the mesiodistal dimensions. Preparations for full coverage restorations were over prepared. 38.5% of the total number of preparations were found to have finishing lines in the sub and supra gingival positions. 19.66% were unable to maintain continuity of the finishing line all around the preparation. All preparations were generally smooth with no sharp angles, and 1.7% of the preparations had additional retentive features. Conclusion: Within the limitations of this study, it could be concluded that the convergence angle and finishing line preparations were less than adequate in a sizeable proportion of the preparations examined.

关键词： Fixed prosthodontics Tooth Preparation Finish Lines ImpressionsFixed prosthodontics Impressions

Automatic evaluation of speech impairment caused by wearing a dental appliance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2013年第7期3卷 365-369页

作者： Mariko Hattori Yuka I. Sumita Hisashi Taniguchi Clinics for Oral and Maxillofacial Rehabilitation Tokyo Medical and Dental University Tokyo Japan Department of Maxillofacial Prosthetics Tokyo Medical and Dental University Tokyo Japan

In dentistry, speech evaluation is important for appropriate orofacial dysfunction rehabilitation. The speech intelligibility test is often used to assess patients’ speech, and it involves an evaluation by human listeners. However, the test has certain shortcomings, and an alternative method, without a listening procedure, is needed. The purpose of this study was to test the applicability of an automatic speech intelligibility test system using a computerized speech recognition technique. Speech of 10 normal subjects, when wearing a dental appliance, was evaluated using an automatic speech intelligibility test system that was developed using computerized speech recognition software. The results of the automatic test were referred to as the speech recognition scores. The Wilcoxon signed rank test was used to analyze differences in the results of the test between the following 2 conditions: with the palatal plate in place and with the palatal plate removed. Spearman correlation coefficients were used to evaluate whether the speech recognition score correlated with the result of conventional intelligibility test. The speech recognition score was significantly decreased when wearing the plate (z = -2.807, P = 0.0050). The automatic evaluation results positively correlated with that of conventional evaluation when wearing the appliance (r = 0.729, P = 0.017). The automatic speech testing system may be useful for evaluating speech intelligibility in denture wearers.

关键词： prosthodontics Maxillofacial prosthodontics Speech Automatic Speech Recognition