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Journal of Prosthetic Dentistry

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https://www.readbyqxmd.com/read/28526429/use-of-a-cad-cam-poly-methyl-methacrylate-interim-prosthesis-for-direct-intraoral-splinting
#1
Periklis Proussaefs
This article describes a technique where an interim computer-aided design and computer-aided manufacturing (CAD-CAM) prosthesis is milled from a poly(methyl methacrylate) blank to confirm esthetics, occlusion, function, phonetics, and accessibility for oral hygiene. The interim prosthesis is then sectioned and reconnected intraorally with autopolymerizing acrylic resin. This interim prosthesis is used to fabricate the definitive stone cast. The interim prosthesis is then scanned with a laboratory scanner. By applying this technique, the implant positioning can be related to the occlusal plane, the contours of the teeth, and the flange...
May 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506656/colorizing-titanium-6aluminum-4vanadium-alloy-using-electrochemical-anodization-developing-a-color-chart
#2
Chandur Wadhwani, Marco Brindis, Mathew Kattadiyil, Richard O'Brien, Kwok-Hung Chung
Colorizing titanium alloys by electrochemical anodization is used in dentistry especially for identification purposes. Colorization is the result of distinct voltage applications to specific titanium alloys when placed in an electrolyte. Titanium and titanium alloys differ in their ability to be anodized. As titanium-6aluminum-4vanadium is commonly used as an abutment material, we have developed a specific color reference scale relating color to the voltage applied.
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506655/fiber-reinforced-composite-fixed-dental-prostheses-a-4-year-prospective-clinical-trial-evaluating-survival-quality-and-effects-on-surrounding-periodontal-tissues
#3
Diana Wolff, Theresa Wohlrab, Daniel Saure, Johannes Krisam, Cornelia Frese
STATEMENT OF PROBLEM: Although fiber-reinforced composite fixed dental prostheses (FRC FDPs) are a reliable treatment option for the restoration of single missing teeth, comparatively few prospective clinical trials (PCT) exist. PURPOSE: The purpose of this PCT was to evaluate the survival, quality outcome, and effect of FRC FDPs on periodontal health over 4 years. MATERIAL AND METHODS: Twenty-six consecutive patients (16 men, 10 women) receiving FRC FDPs with preimpregnated unidirectional fiber reinforcement were included in the trial...
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506654/effect-of-number-of-firings-on-the-color-and-translucency-of-ceramic-core-materials-with-veneer-ceramic-of-different-thicknesses
#4
Funda Bayindir, Ozlem Ozbayram
STATEMENT OF PROBLEM: Whether masking or translucency should be the goal for achieving an esthetic restoration with ceramic materials is unknown. PURPOSE: The purpose of this in vitro study was to examine the effect of the number of firings on the color and translucency of ceramic core material with different thicknesses of veneer ceramic. MATERIAL AND METHODS: Three different ceramic systems were used: IPS Empress (IE), IPS e.max Press (IEP), and Turkom Cera (TC)...
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506653/inhibition-of-denture-plaque-deposition-on-complete-dentures-by-2-methacryloyloxyethyl-phosphorylcholine-polymer-coating-a-clinical-study
#5
Kenji Ikeya, Fuminori Iwasa, Yuuki Inoue, Miya Fukunishi, Nana Takahashi, Kazuhiko Ishihara, Kazuyoshi Baba
STATEMENT OF PROBLEM: Denture plaque-associated infections are regarded as a source of serious dental and medical complications in the elderly population. Methods of managing this problem are needed. PURPOSE: The purpose of this clinical study was to evaluate the effects of treatment with a 2-methacryloyloxyethyl phosphorylcholine polymer, PMBPAz, on plaque deposition in complete dentures. MATERIAL AND METHODS: The study protocol was approved by the Ethics Committee of Showa University (#2013-013)...
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506652/comparison-of-denture-tooth-movement-between-cad-cam-and-conventional-fabrication-techniques
#6
Brian J Goodacre, Charles J Goodacre, Nadim Z Baba, Mathew T Kattadiyil
STATEMENT OF PROBLEM: Data comparing the denture tooth movement of computer-aided design and computer-aided manufacturing (CAD-CAM) and conventional denture processing techniques are lacking. PURPOSE: The purpose of this in vitro study was to compare the denture tooth movement of pack-and-press, fluid resin, injection, CAD-CAM-bonded, and CAD-CAM monolithic techniques for fabricating dentures to determine which process produces the most accurate and reproducible prosthesis...
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28506651/a-load-to-fracture-and-strain-analysis-of-monolithic-zirconia-cantilevered-frameworks
#7
Faris A Alshahrani, Burak Yilmaz, Jeremy D Seidt, Edwin A McGlumphy, William A Brantley
STATEMENT OF PROBLEM: The dimensions of implant-supported fixed cantilevered prostheses are important to prevent mechanical and biological complications. Information on the optimum thickness and cantilever length for improving the strength of zirconia cantilevered frameworks is limited in the literature. PURPOSE: The purpose of this in vitro study was to investigate the effect of cantilever length and occlusocervical thickness on the load-to-fracture and strain distribution of zirconia frameworks...
May 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478991/comparison-of-3d-displacements-of-screw-retained-zirconia-implant-crowns-into-implants-with-different-internal-connections-with-respect-to-screw-tightening
#8
Hanadi A Rebeeah, Burak Yilmaz, Jeremy D Seidt, Edwin McGlumphy, Nancy Clelland, William Brantley
STATEMENT OF PROBLEM: Internal conical implant-abutment connections without horizontal platforms may lead to crown displacement during screw tightening and torque application. This displacement may affect the proximal contacts and occlusion of the definitive prosthesis. PURPOSE: The purpose of this in vitro study was to evaluate the displacement of custom screw-retained zirconia single crowns into a recently introduced internal conical seal implant-abutment connection in 3D during hand and torque driver screw tightening...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478990/comments-regarding-solaberrieta-e-etxaniz-o-ramon-otegi-j-brizuela-a-pradies-g-customized-procedure-to-display-t-scan-occlusal-contacts-j-prosthet-dent-2017-117-18-21
#9
LETTER
Ben Sutter, Nick Yiannios, John Radke
No abstract text is available yet for this article.
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478989/effect-of-coping-thickness-and-background-type-on-the-masking-ability-of-a-zirconia-ceramic
#10
Farhad Tabatabaian, Fateme Taghizade, Mahshid Namdari
STATEMENT OF PROBLEM: The masking ability of zirconia ceramics as copings is unclear. PURPOSE: The purpose of this in vitro study was to evaluate the effect of coping thickness and background type on the masking ability of a zirconia ceramic and to determine zirconia coping thickness cut offs for masking the backgrounds investigated. MATERIAL AND METHODS: Thirty zirconia disks in 3 thickness groups of 0.4, 0.6, and 0.8 mm were placed on 9 backgrounds to measure CIELab color attributes using a spectrophotometer...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478988/an-in%C3%A2-vitro-evaluation-of-the-maxillary-occlusal-plane-orientation-obtained-with-an-electronic-application-a-preliminary-investigation
#11
Thomas C Maveli, Montry Suprono, Mathew T Kattadiyil, Khaled Bahjri
STATEMENT OF PROBLEM: In the evaluation and fabrication of dental prostheses, maxillary occlusal plane orientation in the sagittal and coronal planes may affect functional and esthetic outcomes. The accuracy of a recently developed electronic application in transferring this orientation to a semiadjustable articulator has not been evaluated. PURPOSE: The purpose of this in vitro study was to evaluate the coronal and sagittal orientation of the occlusal plane on maxillary casts mounted with an electronic application facebow system onto a corresponding semiadjustable arcon articulator...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478987/comparative-evaluation-of-3-microbond-strength-tests-using-4-adhesive-systems-mechanical-finite-element-and-failure-analysis
#12
Roberto E Campos, Paulo César F Santos Filho, Osmir Batista de O Júnior, Gláucia M B Ambrosano, Cristina Alves Pereira
STATEMENT OF PROBLEM: Bond strength (BS) values from in vitro studies are useful when dentists are selecting an adhesive system, but there is no ideal measuring method. PURPOSE: The purpose of this in vitro study was to investigate the influence of the evaluation method in the BS between dentin and composite resin. MATERIAL AND METHODS: Molars with exposed superficial dentin (N=240) were divided into 3 groups according to the test: microtensile (μTBS), microshear (μSBS), and micropush-out (μPBS)...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478986/retrospective-cross-sectional-study-on-immediately-loaded-implant-supported-mandibular-fixed-complete-arch-prostheses-fabricated-with-the-passive-fit-cementation-technique
#13
Francine Baldin Able, Ivete Aparecida de Mattias Sartori, Geninho Thomé, Ana Cláudia Moreira Melo
STATEMENT OF PROBLEM: Mandibular fixed complete-arch dental prostheses on dental implants have been benefiting patients for a long time, but problems with passive fitting between the metallic framework of the prostheses and the implants might influence its long-term success. PURPOSE: The purpose of this cross-sectional study of immediately loaded mandibular fixed complete-arch dental prostheses was to evaluate the survival and success rates of prostheses, the survival rates of dental implants, the occurrence of complications in the prostheses and implants, participant satisfaction, and the association between cantilever length and prosthesis complications...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478985/a-multicenter-randomized-controlled-clinical-trial-comparing-the-use-of-displacement-cords-an-aluminum-chloride-paste-and-a-combination-of-paste-and-cords-for-tissue-displacement
#14
Erna R Einarsdottir, Niklaus P Lang, Thor Aspelund, Bjarni E Pjetursson
STATEMENT OF PROBLEM: Gingival recession after soft tissue displacement for impression making in fixed prosthodontics may pose a problem for treatment success in the esthetic areas of the mouth. Knowledge about the soft tissue reaction of common gingival displacement methods is limited. PURPOSE: The purpose of this clinical randomized controlled trial (RCT) was to evaluate changes in the marginal soft tissue height with 3 different gingival tissue displacement techniques for definitive impression making of natural teeth...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478984/randomized-clinical-trial-of-2-nonvital-tooth-bleaching-techniques-a-1-year-follow-up
#15
Diogo Pedrollo Lise, Gustavo Siedschlag, Jussara Karina Bernardon, Luiz Narciso Baratieri
STATEMENT OF PROBLEM: Controlled clinical trials comparing the effectiveness of the walking bleaching (WB) technique and the inside-outside (I-O) technique used in a short daily regimen are lacking. PURPOSE: The purpose of this randomized clinical trial was to investigate the effectiveness of WB with that of the I-O technique conducted over 4 weeks and to compare color changes after 1 year. MATERIAL AND METHODS: Discolored and endodontically treated anterior teeth received a cervical seal and were randomly divided into groups according to the technique...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28478983/prosthetically-guided-bone-sculpturing-for-a-maxillary-complete-arch-implant-supported-monolithic-zirconia-fixed-prosthesis-based-on-a-digital-smile-design-a-clinical-report
#16
Fernando Rojas-Vizcaya
A digital smile design was used to create an average smile and to develop a removable interim restoration for an edentulous patient with a high smile line and different bone levels in the maxilla. The interim restoration was used as a guide to perform bone sculpturing to create space for the biological width and to restore a monolithic zirconia implant-supported fixed restoration.
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28477919/effect-of-screw-access-hole-and-mechanical-cycling-on-fracture-load-of-3-unit-implant-supported-fixed-dental-prostheses
#17
Fernando Mallmann, Luciano Rosa, Márcia Borba, Alvaro Della Bona
STATEMENT OF PROBLEM: The effect of screw-access holes and mechanical cycling on fracture resistance of 3-unit screw-retained zirconia-based implant-supported fixed dental prostheses (ISFDPs) is unknown. PURPOSE: The purpose of this in vitro study was to evaluate the effect of screw-access holes on the maximum fracture load (Lf) of 3-unit ISFDPs fabricated with the same abutment design for screw (s)-retained and cement (c)-retained with either a metal- or zirconia-based framework, testing the hypotheses that ISFDPs with screw-access holes have the lowest Lf and that mechanical cycling decreases the Lf of screw-retained ISFDPs...
May 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28477918/interproximal-distance-analysis-of-stereolithographic-casts-made-by-cad-cam-technology-an-in%C3%A2-vitro-study
#18
Melanie Hoffman, Seok-Hwan Cho, Naveen K Bansal
STATEMENT OF PROBLEM: The accuracy of interproximal distances of the definitive casts made by computer-aided design and computer-aided manufacturing (CAD-CAM) technology is not yet known. PURPOSE: The purpose of this in vitro study was to compare the interproximal distances of stereolithographic casts made by CAD-CAM technology with those of stone casts made by the conventional method. MATERIAL AND METHODS: Dentoform teeth were prepared for a single ceramic crown on the maxillary left central incisor, a 3-unit fixed dental prosthesis (FDP) on the second premolar for a metal ceramic crown, and a maxillary right first molar for a metal crown...
May 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28477917/distortion-of-cad-cam-fabricated-implant-fixed-titanium-and-zirconia-complete-dental-prosthesis-frameworks
#19
Hadi Al-Meraikhi, Burak Yilmaz, Edwin McGlumphy, William A Brantley, William M Johnston
STATEMENT OF PROBLEM: Computer-aided design and computer-aided manufacturing (CAD-CAM)-fabricated titanium and zirconia implant-supported fixed dental prostheses have become increasingly popular for restoring patients with complete edentulism. However, the distortion level of these frameworks is not well known. PURPOSE: The purpose of this in vitro study was to compare the 3-dimensional (3D) distortion of CAD-CAM zirconia and titanium implant-fixed screw-retained complete dental prostheses...
May 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28461049/an-online-tool-that-provides-access-to-evidence-based-literature-on-dental-restorations-www-crownorfill-com
#20
LETTER
Kelvin I Afrashtehfar, Faleh Tamimi
No abstract text is available yet for this article.
April 28, 2017: Journal of Prosthetic Dentistry
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