The Journal of prosthetic dentistry最新文献_第7页

A piezoelectric film-based intrasplint detection method for bruxism. 一种基于压电薄膜的磨牙检测方法。

The Journal of prosthetic dentistry Pub Date : 2001-08-01 DOI: 10.1067/MPR.2001.115487

H. Takeuchi, T. Ikeda, G. Clark

{"title":"A piezoelectric film-based intrasplint detection method for bruxism.","authors":"H. Takeuchi, T. Ikeda, G. Clark","doi":"10.1067/MPR.2001.115487","DOIUrl":"https://doi.org/10.1067/MPR.2001.115487","url":null,"abstract":"STATEMENT OF PROBLEM\u0000An accurate, easy-to-use, long-term method other than EMG is needed to monitor bruxism.\u0000\u0000\u0000PURPOSE\u0000This article presents pilot data on the reproducibility, validity, and utility of an intrasplint piezoelectric film method.\u0000\u0000\u0000MATERIAL AND METHODS\u0000Simulated bruxism behaviors (steady-state and rhythmic clenching, grinding, and tapping) in 5 subjects were recorded with the use of both masseter EMG and an intrasplint piezoelectric film method.\u0000\u0000\u0000RESULTS\u0000Correlation coefficients calculated for simulated bruxism event duration with the use of a masseter EMG or an intrasplint piezoelectric film method were 0.99 for tapping and steady-state clenching, 0.96 for rhythmic clenching, and 0.79 for grinding.\u0000\u0000\u0000CONCLUSION\u0000Piezoelectric film has its limitations and does not faithfully capture sustained force magnitudes. However, for the target behaviors associated with bruxism (tooth grinding, clenching, and tapping), it appears to faithfully reproduce above-baseline events with durations statistically indistinguishable from those recorded with masseter EMG. Masseter EMG was poorest at detecting a simulated side-to-side grinding behavior.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116373190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 50

Technique for fabricating a lightweight, urethane-lined silicone orbital prosthesis. 制造轻质聚氨酯内衬硅胶眼窝假体的技术。

The Journal of prosthetic dentistry Pub Date : 2001-08-01 DOI: 10.1067/MPR.2001.115876

S. Kiat-Amnuay, J. Lemon, P. Wesley

引用次数: 10

Alternative method for retention and removal of cement-retained implant prostheses. 保留和移除水泥保留假体的替代方法。

The Journal of prosthetic dentistry Pub Date : 2001-08-01 DOI: 10.1067/MPR.2001.115687

F. P. Valbao, E. G. Pérez, M. Breda

引用次数: 35

Fluoride release from restorative materials and a luting cement. 修复材料和水泥中氟化物的释放。

The Journal of prosthetic dentistry Pub Date : 2001-08-01 DOI: 10.1067/MPR.2001.116778

M. Helvatjoglu-Antoniades, P. Karantakis, Y. Papadogiannis, Hryssostomos Kapetanios

{"title":"Fluoride release from restorative materials and a luting cement.","authors":"M. Helvatjoglu-Antoniades, P. Karantakis, Y. Papadogiannis, Hryssostomos Kapetanios","doi":"10.1067/MPR.2001.116778","DOIUrl":"https://doi.org/10.1067/MPR.2001.116778","url":null,"abstract":"STATEMENT OF PROBLEM\u0000In addition to conventional glass ionomers, a considerable number of different types of materials have been formulated to release fluoride. Variation in composition results in quantitative differences in the amount of fluoride release by these materials.\u0000\u0000\u0000PURPOSE\u0000This study evaluated and compared fluoride release in distilled water from different types of restorative materials and a luting cement.\u0000\u0000\u0000MATERIAL AND METHODS\u0000Fluoride release from 4 glass ionomer formulation restorative materials (Miracle-Mix, Fuji ionomer type III, Fuji II LC improved, and Ketac-Silver), a luting cement (Ketac Cem), a compomer (Compoglass Flow), 2 sealants (Fissurit F, Helioseal F), and a composite resin (Tetric) was evaluated at time intervals of 4, 8, 12, and 24 hours and 2, 3, 7, 14, 28, 56, and 112 days. Seven disks of each material were made and stored for equilibration in double distilled water at 37 degrees C for the time of each measurement. The equilibrated solution was analyzed for fluoride with a TISAB and an ion-specific combination electrode (ORION 960900) connected to an expandable ion analyzer (Crison micropH 2002). Data were analyzed by means of univariate analysis of variance, the Dunnett C post hoc test, and repeated measures analysis.\u0000\u0000\u0000RESULTS\u0000Fluoride was released from all the evaluated materials, with considerable variation in the rate of release but a similar pattern. Among the materials tested, fluoride release from glass ionomer formulations was greater than that from composite resin formulations; the rank of decreasing order was as follows: Miracle Mix > Fuji III, Ketac Cem > Fuji II LC > Ketac Silver, Compoglass F > Fissurit F, Helioseal F > Tetric (> indicates statistical significance; P< .05).\u0000\u0000\u0000CONCLUSION\u0000Under the conditions of this study, glass ionomer formulations and the compomer released more fluoride than the sealants and the composite resin tested.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"27 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114032224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 41

Terminal hinge movement of the mandible. 1957. 下颌骨末端铰链运动。1957.

The Journal of prosthetic dentistry Pub Date : 2001-07-01 DOI: 10.1067/MPR.2001.117227

U. Posselt

引用次数: 4

Implant abutment screw rotations and preloads for four different screw materials and surfaces. 种植基台螺钉旋转和四种不同螺钉材料和表面的预载荷。

The Journal of prosthetic dentistry Pub Date : 2001-07-01 DOI: 10.1067/MPR.2001.116230

W. Martin, R. Woody, B. Miller, A. Miller

{"title":"Implant abutment screw rotations and preloads for four different screw materials and surfaces.","authors":"W. Martin, R. Woody, B. Miller, A. Miller","doi":"10.1067/MPR.2001.116230","DOIUrl":"https://doi.org/10.1067/MPR.2001.116230","url":null,"abstract":"STATEMENT OF PROBLEM\u0000Chronic implant screw loosening remains a problem in restorative practices. Some implant manufacturers have introduced abutment screws with treated surfaces in an effort to increase preload and reduce potential loosening. Purpose. This study evaluated the materials and surfaces of 4 commercially available abutment screws on preload generation.\u0000\u0000\u0000MATERIAL AND METHODS\u0000Twenty of each of the following abutment screws-Gold-Tite (Gt), TorqTite (Tt), gold alloy (Ga), and titanium alloy (Ta)-were divided into 2 groups. Measurements were recorded for each abutment screw on a mounted 3.75 x 18 mm external hex implant with a titanium abutment. Rotational angle measurements were conducted on the 4 abutment screws at 20 and 32 Ncm. Removal torque values were recorded and used to indirectly generate preload values. Random implant block specimens were sectioned and qualitatively evaluated with an SEM.\u0000\u0000\u0000RESULTS\u0000At 20 and 32 Ncm, the largest rotational angles were recorded for the Tt groups: 21.2 +/- 3.1 degrees and 38.1 +/- 8.7 degrees, respectively. The greatest preload values at 20 and 32 Ncm were calculated for the Gt groups: 596.8 +/- 101.2 N and 1015.3 +/- 191.2 N, respectively. SEM analysis of the 4 implant block specimens revealed mating thread contacts located in the middle portion of the superior surface of the abutment screw thread. The greatest number of mating thread contacts were seen in the Gt implant block specimen (14 of 20 possible thread contacts).\u0000\u0000\u0000CONCLUSION\u0000The Gt and Tt abutment screws with enhanced surfaces that help reduce the coefficient of friction produced greater rotational angles and preload values than the conventional gold alloy and titanium alloy screws.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125732469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 177

Immediate stabilization at stage II of zygomatic implants: rationale and technique. 颧植入二期即刻稳定:原理和技术。

The Journal of prosthetic dentistry Pub Date : 2001-07-01 DOI: 10.1067/MPR.2001.115890

E. Bedrossian, L. Stumpel

引用次数: 89

A method of making casts for permanent, complete acrylic resin denture bases without blocking out undercuts. 一种制造永久的、完整的丙烯酸树脂义齿基托而不堵塞凹口的铸型方法。

The Journal of prosthetic dentistry Pub Date : 2001-07-01 DOI: 10.1067/MPR.2001.115652

M. Reeson, N. Jepson

引用次数: 0

An evidence-based assessment of occlusal adjustment as a treatment for temporomandibular disorders. 一个基于证据的评估咬合调整作为治疗颞下颌疾病。

The Journal of prosthetic dentistry Pub Date : 2001-07-01 DOI: 10.1067/MPR.2001.115399

Y. Tsukiyama, K. Baba, G. Clark

{"title":"An evidence-based assessment of occlusal adjustment as a treatment for temporomandibular disorders.","authors":"Y. Tsukiyama, K. Baba, G. Clark","doi":"10.1067/MPR.2001.115399","DOIUrl":"https://doi.org/10.1067/MPR.2001.115399","url":null,"abstract":"STATEMENT OF PROBLEM\u0000Occlusal adjustment therapy has been advocated as a treatment modality for temporomandibular disorders. In contrast to this position, a panel at the 1996 National Institute of Health technology assessment conference on TMD indicated that no clinical trials demonstrate that occlusal adjustment is superior to noninvasive therapies.\u0000\u0000\u0000PURPOSE\u0000This article summarizes the published experimental studies on occlusal adjustments and temporomandibular disorders.\u0000\u0000\u0000MATERIAL AND METHODS\u0000Eleven research experiments involving 413 subjects with either bruxism (n = 59), temporomandibular disorders (n = 219), headaches and temporomandibular disorders (n = 91), or chronic cervical pain (n = 40) were selected for critical review from the English dental literature.\u0000\u0000\u0000RESULTS\u0000Three experiments evaluated the relationship between occlusal adjustment and bruxism. Six experiments evaluated occlusal adjustment therapy as a treatment for patients with primary temporomandibular disorders. One experiment looked at occlusal adjustment effect on headache/temporomandibular disorder symptoms; another looked at its effect on chronic neck pain. Most of these experiments used a mock adjustment or a comparison treatment as the control condition in adults who had an existing nonacute general temporomandibular disorder. Overall, the data from these experiments did not demonstrate elevated therapeutic efficacy for occlusal adjustment over the control or the contrasting therapy.\u0000\u0000\u0000CONCLUSION\u0000The experimental evidence reviewed was neither convincing nor powerful enough to support the performance of occlusal therapy as a general method for treating a nonacute temporomandibular disorder, bruxism, or headache.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125258326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 134

The double-inlay technique: a new concept and improvement in design. 双嵌体技术:一个新概念和设计上的改进。

The Journal of prosthetic dentistry Pub Date : 2001-06-01 DOI: 10.1067/MPR.2001.115651

B. Dailey, P. Gateau, L. Covo Dds

引用次数: 2