The Journal of prosthetic dentistry最新文献

{"title":"Relative translucency of six all-ceramic systems. Part II: core and veneer materials.","authors":"M. Heffernan, S. Aquilino, A. Diaz-Arnold, D. R. Haselton, C. Stanford, M. Vargas","doi":"10.1016/S0022-3913(02)00041-0","DOIUrl":"https://doi.org/10.1016/S0022-3913(02)00041-0","url":null,"abstract":"","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129629660","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}

{"title":"Customizing the size of toothbrush handles for patients with restricted hand and finger movement.","authors":"M. Reeson, N. Jepson","doi":"10.1067/MPR.2002.120840","DOIUrl":"https://doi.org/10.1067/MPR.2002.120840","url":null,"abstract":"1. Popovitch PP, Kilfoil JO. Custom handles of dental acrylic to promote self-sufficiency of handicapped patients. Arch Phys Med Rehabil 1978;59:440-2. 2. Arblaster DG, Rothwell PS, White GE. A toothbrush for patients with impaired manual dexterity. Br Dent J 1985;159:219-20. 3. Ettinger RL, Lancial LA, Peterson LC. Toothbrush modifications and the assessment of hand function in children with hand disabilities. J Dent Handicap 1980;5:7-12. 4. de Mattos MD, Pinelli LA, Ribeiro RF, Bezzon OL. Fabrication of an acrylic resin device used to increase the size of toothbrush handles. J Prosthet Dent 1998;79:361-2.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118799242","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}

{"title":"Conversion of a complete denture to a provisional implant-supported, screw-retained fixed prosthesis for immediate loading of a completely edentulous arch.","authors":"Greg Kammeyer, P. Proussaefs, J. Lozada","doi":"10.1067/MPR.2002.123985","DOIUrl":"https://doi.org/10.1067/MPR.2002.123985","url":null,"abstract":"This article describes the fabrication of a provisional implant-supported, screw-retained restoration for immediate loading of a completely edentulous arch. The technique can be applied to patients with partially edentulous arches as well. Until immediate loading of dental implants becomes a well-documented treatment modality, the described method should not be applied on a routine basis or without careful evaluation.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"119183915","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}

{"title":"Macro design morphology of endosseous dental implants.","authors":"Indira G Sahiwal, R. Woody, B. Benson, G. E. Guillen","doi":"10.1067/MPR.2002.124432","DOIUrl":"https://doi.org/10.1067/MPR.2002.124432","url":null,"abstract":"STATEMENT OF PROBLEM\u0000The identification of dental implant bodies in patients without available records is a considerable problem due to increased patient mobility and to the large number of implant systems with different designs.\u0000\u0000\u0000PURPOSE\u0000The purpose of this study was to document the designs of selected implants to help clinicians identify these implants from their radiographic images.\u0000\u0000\u0000MATERIAL AND METHODS\u0000More than 50 implant manufacturers were contacted and asked to provide implants with dimensions as close as possible to 3.75 mm (diameter) x 10 mm (length). Forty-four implants were donated, separated into threaded and non-threaded categories, and further sorted into tapered and non-tapered categories. The implants were examined visually, and features on the entire circumference and length of each implant were recorded and categorized as coronal, midbody, or apical.\u0000\u0000\u0000RESULTS\u0000A series of tables describe the 44 implants according to coronal, midbody, and apical features.\u0000\u0000\u0000CONCLUSION\u0000The results of this project offer dentists basic knowledge of the design of selected dental implants. Such knowledge can aid the radiographic identification of these implants.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126948829","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}

{"title":"A light-polymerized resin support tray as an aid for recording centric relation.","authors":"Y. Goto, Alexander Shor, Kavita Chigurupati, J. Rubenstein","doi":"10.1067/MPR.2002.124203","DOIUrl":"https://doi.org/10.1067/MPR.2002.124203","url":null,"abstract":"For patients who require complex fixed prosthodontic oral rehabilitation, recording an accurate centric relation is often a difficult procedure. A minimal number of abutment teeth or implants may not offer adequate support for the occlusal registration material. In the described technique, Triad tray material is used as an occlusal registration supporting tray. This procedure is accurate and convenient for the restorative dentist.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115808953","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}

{"title":"Effect of splinting and interproximal contact tightness on load transfer by implant restorations.","authors":"D. Guichet, Diane Yoshinobu, A. Caputo","doi":"10.1067/MPR.2002.124589","DOIUrl":"https://doi.org/10.1067/MPR.2002.124589","url":null,"abstract":"STATEMENT OF PROBLEM\u0000To circumvent the difficulty of achieving a passive framework fit, some authors have suggested that multiple adjacent implants be restored individually. This protocol requires that each unit be able to withstand mastication forces. Non-splinted restorations have numerous interproximal contacts that require adjustments prior to placement, with an unknown outcome relative to load transfer.\u0000\u0000\u0000PURPOSE\u0000This in vitro simulation study examined the effect of splinting and interproximal contact tightness on passivity of fit and the load transfer characteristics of implant restorations.\u0000\u0000\u0000MATERIAL AND METHODS\u0000A photoelastic model of a human partially edentulous left mandible with 3 screw-type implants (3.75 x 10 mm) was fabricated. For non-splinted restorations, individual crowns were fabricated on 3 custom-milled titanium abutments. After the units were cemented, 5 levels of interproximal contact tightness were evaluated: open, ideal (8 microm shim stock drags without tearing), light (ideal +10 microm), medium (ideal + 50 microm), and heavy (ideal + 90 microm). For splinted restorations, five 3-unit fixed partial dentures were fabricated, internally adjusted with silicone disclosing material, and cemented to the model. Changes in stress distribution under simulated non-loaded and loaded conditions (6.8 kg) were analyzed with a polariscope.\u0000\u0000\u0000RESULTS\u0000In the simulated alveolar structures, non-splinted restorations with heavier interproximal contacts were associated with increased tensile stresses between implants; occlusal loads tended to concentrate around the specific loaded implant. Splinted restorations shared the occlusal loads and distributed the stresses more evenly between the implants when force was applied. The load-sharing effect was most evident on the center implant but also was seen on the terminal abutments of the splinted restorations.\u0000\u0000\u0000CONCLUSION\u0000The results of this in vitro study suggest that excessive contact tightness between individual crowns can lead to a non-passive situation. In this experiment, splinted restorations exhibited better load sharing than non-splinted restorations.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125153354","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}

{"title":"Retrofitting crowns to an existing removable partial denture clasp: a simple technique.","authors":"G. Helvey","doi":"10.1067/MPR.2002.122867","DOIUrl":"https://doi.org/10.1067/MPR.2002.122867","url":null,"abstract":"The fabrication of a new crown to replace an existing abutment tooth for a removable partial denture is one of the most labor-intensive chairside and laboratory procedures. The process can become more complicated when the patient requests a tooth-colored esthetic restoration. Numerous techniques are described in the literature, some for all-metallic restorations and others for metal-ceramic restorations. This article describes a simplified technique that makes use of a polymer ceramic material.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124703316","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}

{"title":"Evaluation of two vitallium blade-form implants retrieved after 13 to 21 years of function: a clinical report.","authors":"P. Proussaefs, J. Lozada","doi":"10.1067/MPR.2002.122960","DOIUrl":"https://doi.org/10.1067/MPR.2002.122960","url":null,"abstract":"This article describes the clinical, radiographic, and histologic evaluation of 2 immediately loaded Vitallium blade-form implants retrieved from the posterior maxilla of 2 patients after 21 and 13 years of function. Neither implant demonstrated mobility or signs of pathosis, and both appeared to have integrated well with surrounding bone. The hydroxyapatite coating of the second implant, which was retrieved after 13 years of function, showed no dissolution. These observations suggest that immediately loaded dental implants have the potential to achieve and maintain osseointegration and that hydroxyapatite coatings can resist degradation over long-term service.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127095720","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}

{"title":"Fracture strength after dynamic loading of endodontically treated teeth restored with different post-and-core systems.","authors":"G. Heydecke, F. Butz, Amr Hussein, J. Strub","doi":"10.1067/MPR.2002.123849","DOIUrl":"https://doi.org/10.1067/MPR.2002.123849","url":null,"abstract":"STATEMENT OF PROBLEM\u0000Prefabricated metal and ceramic posts can be used with direct or indirect cores as an alternative to the conventional cast post and core. It is unclear how the fracture strength of zirconia posts with composite or ceramic cores and titanium posts with composite cores compares to the fracture strength of gold posts and cores after dynamic loading.\u0000\u0000\u0000PURPOSE\u0000This study compared the fracture strength of endodontically treated, crowned maxillary incisors with limited ferrule length and different post-and-core systems after fatigue loading.\u0000\u0000\u0000MATERIAL AND METHODS\u0000Sixty-four caries-free, human maxillary central incisors were divided into 4 groups. After root canal treatment, Group 1 was restored with titanium posts and composite cores, Group 2 with zirconia posts and composite cores, and Group 3 with zirconia posts and heat-pressed ceramic cores. Teeth restored with cast-on gold posts and cores served as the controls (Group 4). Teeth were prepared with a circumferential shoulder including a 1 to 2 mm ferrule; all posts were cemented with an adhesive resin cement, restored with complete-coverage crowns, and exposed to 1.2 million load cycles (30 N) in a computer-controlled chewing simulator. Simultaneous thermocycling between 5 degrees C and 55 degrees C was applied for 60 seconds with an intermediate pause of 12 seconds. All specimens that did not fracture during dynamic loading were loaded until fracture in a universal testing machine at a crosshead speed of 1.5 mm/min; loads were applied at an angle of 130 degrees at the incisal edge. Fracture loads (N) and modes (repairable or catastrophic) were recorded. The Kruskal-Wallis test was used to compare fracture loads among the 4 test groups. Analyses were conducted both with and without the specimens that failed during the chewing simulation. A Fisher exact test was performed to detect group differences in fracture modes. A significance level of P<.05 was used for all comparisons.\u0000\u0000\u0000RESULTS\u0000The following survival rates were recorded after the chewing simulation: 93.8% (Group 1), 93.8% (Group 2), 100% (Group 3), and 87.5% (Group 4). The median fracture strengths for Groups 1 to 4 were 450 N, 503 N, 521 N, and 408 N, respectively. No significant differences were detected among the groups. The use of zirconia posts resulted in a nonsignificant lower number of catastrophic root fractures.\u0000\u0000\u0000CONCLUSION\u0000Within the limitations of this study, the results suggest that zirconia posts with ceramic cores can be recommended as an alternative to cast posts and cores. If a chairside procedure is preferred, zirconia or titanium posts with composite cores can be used. Clinical trials are required to verify these in vitro results.","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127010469","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}

{"title":"Alternative method for standardized tooth preparation.","authors":"H. Gür, Ç. Sevük, B. Akkayan","doi":"10.1067/MPR.2001.119920","DOIUrl":"https://doi.org/10.1067/MPR.2001.119920","url":null,"abstract":"","PeriodicalId":185384,"journal":{"name":"The Journal of prosthetic dentistry","volume":"22 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"119709785","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}