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Journal of Prosthetic Dentistry

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https://www.readbyqxmd.com/read/28918299/the-prosthetic-rehabilitation-of-a-patient-with-a-lateral-postsurgical-defect-using-a-2-piece-magnet-retained-facial-prosthesis-a-clinical-report
#1
Kariem M Elhelow, Yasser E Al-Thobaiti, Abdurabu A Gomawi
Nonsurgical prosthetic interventions are often proposed after repeated grafts have failed to restore irradiated facial defects. This report describes a facial prosthetic reconstruction following ablative surgery for a sizable facial tumor by using a novel custom-made magnet-bearing substructure, which connected with an exposed part of the mandibular reconstruction plate. The defect involved the entire left lower part of the face and angle of the mentum. This reconstructive technique, together with an added surface texture with hair-like silicone strands, effectively addressed the cosmetic needs of the patient...
September 14, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888415/a-chairside-technique-to-add-customized-anterior-acrylic-resin-teeth-to-a-surgical-obturator
#2
Kamarul Hisham Kamarudin, Mariko Hattori, Yuka I Sumita, Hisashi Taniguchi
A surgical obturator may need to be modified during the healing process after tissue resection. Apart from relining the fitting surfaces to accommodate the healing wound and changes in the surrounding tissues, other modifications such as adding teeth are sometimes required to improve esthetics and speech. This article describes a chairside technique to add customized acrylic resin teeth to an existing surgical obturator.
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888414/use-of-silver-diamine-fluoride-for-the-maintenance-of-dental-prostheses-in-a-high-caries-risk-patient-a-medical-management-approach
#3
Lola Giusti, Cathrine Steinborn, Maya Steinborn
A technique for using silver diamine fluoride (SDF) as part of a regimen to help maintain dental prostheses in a patient with scleroderma and at high risk of caries is presented. Medically compromised, xerostomic, or elderly patients generally face greater risk of caries and specifically with prosthetic retainer teeth. SDF is a minimally invasive solution to this problem. A technique is described for using SDF to arrest and prevent new caries with the goal of maintaining fixed and removable prostheses and supporting teeth in a cost-effective manner...
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888413/digital-intraoral-impression-technique-for-edentulous-jaws
#4
Jing-Huan Fang, Xueyin An, Seung-Mi Jeong, Byung-Ho Choi
Few studies have evaluated direct digital impressions of edentulous jaws using intraoral scanners because it is difficult to scan edentulous sites that are smooth and devoid of features. A scanning technique is introduced for making direct digital impressions of edentulous jaws with intraoral scanners in patients with a broad palate.
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888412/a-risk-based-decision-making-tree-for-managing-fractured-abutment-and-prosthetic-screws-a-systematic-review
#5
Ryan M Mizumoto, Faris Z Jamjoom, Burak Yilmaz
STATEMENT OF PROBLEM: In implant dentistry, a variety of techniques are used to manage fractured abutment and prosthetic screws. All of them pose various degrees of difficulty to both the clinician and patient and risk involving damage to the implants and prostheses. PURPOSE: The purpose of this systematic review was to classify and organize the various reported techniques for managing fractured abutment and or prosthetic screws into a risk-based, decision making tree that could be used to guide the clinician through this difficult and time-consuming clinical procedure...
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888411/3d-printed-cone-beam-computed-tomography-scans-a-tool-for-patient-education
#6
A Brian Urtula, Joa O Malta Barbosa, Gonçalo Bártolo Caramês, Ali Alper Çomut
No abstract text is available yet for this article.
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888410/three-dimensional-printing-in-contemporary-fixed-prosthodontics-a-technique-article
#7
Sarah Bukhari, Brian J Goodacre, Abdulaziz AlHelal, Mathew T Kattadiyil, Paul M Richardson
Digital dentistry has gained in popularity among clinicians and laboratory technicians because of its versatile applications. Three-dimensional (3D) printing has been applied in many areas of dentistry as it offers efficiency, affordability, accessibility, reproducibility, speed, and accuracy. This article describes a technique where 3D printing is used to fabricate a die-trimmed cast and to replicate gingival tissue and implant analogs. The digital workflow that replaces the conventional laboratory procedure is outlined...
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28888409/maxillofacial-prosthetic-treatment-factors-affecting-oral-health-related-quality-of-life-after-surgery-for-patients-with%C3%A2-oral-cancer
#8
Miki Hagio, Ken Ishizaki, Masahiro Ryu, Takeshi Nomura, Nobuo Takano, Kaoru Sakurai
STATEMENT OF PROBLEM: After oral cancer surgery, tissue defects can cause deformity and limited mobility, complicating many essential functions. For patients with mandibular, tongue, and oral floor defects, evidence regarding the effects of maxillofacial prosthetics on their oral health-related quality of life (OHRQoL) is lacking. Therefore, maxillofacial prosthetic reconstruction has been implemented with no clear treatment goals. PURPOSE: The purpose of this study was to identify factors affecting the improvement of OHRQoL by using maxillofacial prosthetic treatment after surgery to repair maxillary, mandibular, tongue, and oral floor defects...
September 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28870541/lay-preferences-for-dentogingival-esthetic-parameters-a-systematic-review
#9
REVIEW
Stefano Del Monte, Kelvin I Afrashtehfar, Elham Emami, Samer Abi Nader, Faleh Tamimi
STATEMENT OF PROBLEM: An objective definition of the characteristics that render a smile esthetically acceptable in the eye of laypeople is lacking. PURPOSE: The purpose of this systematic review was to identify, appraise, and synthesize the available evidence on the opinion of laypeople regarding the dentogingival characteristics that render a smile esthetically acceptable. The evidence was collected by surveying with standardized digitally modified smile images...
September 1, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28838822/a-multidisciplinary-approach-to-the-management-of-a-maxillary-midline-diastema-a-clinical-report
#10
Mario F Romero, Courtney S Babb, Christian Brenes, Fernando J Haddock
A maxillary midline diastema (MMD) is a common complaint of dental patients. An MMD can be closed with treatment from different disciplines, including operative dentistry and orthodontics. A comprehensive smile analysis is also a necessity before beginning treatment. This article highlights the closure of a 3-mm MMD by using a combination of orthodontics and direct composite resin restorations.
August 22, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28838821/effect-of-annealing-procedure-on-the-bonding-of-ceramic-to-cobalt-chromium-alloys-fabricated-by-rapid-prototyping
#11
Ayca Tulga
STATEMENT OF PROBLEM: An annealing procedure is a heat treatment process to improve the mechanical properties of cobalt-chromium (Co-Cr) alloys. However, information is lacking about the effect of the annealing process on the bonding ability of ceramic to Co-Cr alloys fabricated by rapid prototyping. PURPOSE: The purpose of this in vitro study was to evaluate the effects of the fabrication techniques and the annealing procedure on the shear bond strength of ceramic to Co-Cr alloys fabricated by different techniques...
August 22, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28838820/safe-zone-in-anterior-mandible-related-to-the-genial-tubercle-for-implant-osteotomy-in-a-chinese-malaysian-population-a-cbct-study
#12
Yik Sze Voon, Pravinkumar G Patil
STATEMENT OF PROBLEM: The genial tubercle is a clinically palpable landmark in the mandible and can be identified in cone beam computed tomography (CBCT). Its location can be used to measure the safe zone in the interforaminal region of the mandible. These measurements may be helpful for implant treatment planning in patients with complete edentulism. PURPOSE: The purpose of this clinical study was to evaluate the safe distance in the interforaminal region of the mandible measured from the genial tubercle level for implant osteotomy in a Chinese-Malaysian population...
August 22, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28781073/accuracy-of-stereolithography-additive-casts-used-in-a-digital-workflow
#13
Hiba Al-Imam, Mia Gram, Ana R Benetti, Klaus Gotfredsen
STATEMENT OF PROBLEM: Despite the increasing demand for a digital workflow in the fabrication of indirect restorations, information on the accuracy of the resulting definitive casts is limited. PURPOSE: The purpose of this in vitro study was to compare the accuracy of definitive casts produced with digital scans and conventional impressions. MATERIAL AND METHODS: Chamfer preparations were made on the maxillary right canine and second molar of a typodont...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28781072/mechanical-and-optical-properties-of-monolithic-cad-cam-restorative-materials
#14
Nazmiye Sen, Yesim Olcer Us
STATEMENT OF PROBLEM: Achieving natural tooth appearance with sufficient mechanical strength is one of the most challenging issues of computer-assisted design and computer-assisted manufacturing (CAD-CAM) materials. However, limited evidence is available regarding their optical and mechanical properties for proper and evidence-based material selection in clinical practice. PURPOSE: The purpose of this in vitro study was to assess and compare the translucency and biaxial flexural strength of 5 monolithic CAD-CAM restorative materials...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28781071/effect-of-thixotropic-agents-as-additives-on-the-mechanical-properties-of-maxillofacial-silicone-elastomers
#15
Abdel Rahim M Bibars, Zeid Al-Hourani, Yousef Khader, Mark Waters
STATEMENT OF PROBLEM: The incorporation of thixotropic agents to prevent slumping during the silicone packing procedure may alter some favorable mechanical properties of the silicone elastomers and could possibly influence the success of the prosthesis. PURPOSE: The purpose of this in vitro study was to evaluate the effect of adding thixotropic agents on the mechanical properties of 3 commonly used silicone elastomers. MATERIAL AND METHODS: Specimens of 3 maxillofacial silicones (M511, Z004; Technovent Ltd, and A2000; Factor II Inc) were prepared according to the manufacturers' instructions...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28781070/immediate-implant-placement-and-complete-mouth-rehabilitation-with-cad-cam-titanium-frameworks-and-cemented-crowns-for-a-patient-with-severe-periodontal-disease-a-clinical-report
#16
Pei Wang, Chunbo Tang, Yi Tang, Yunong Wu
The technique of immediate implantation has been widely used to reduce treatment time and bone loss after extraction. However, immediate implant placement in infected extraction sockets is generally contraindicated. This clinical report describes a treatment protocol for immediate implantation after the extraction of teeth with generalized chronic periodontitis. The technique used for the oral rehabilitation used computer-assisted design and computer-assisted manufacturing (CAD-CAM) titanium frameworks and cemented zirconia crowns...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28781069/effects-of-image-and-education-on-the-precision-of-the-measurement-method-for-evaluating-prosthesis-misfit
#17
Hang-Nga Mai, Kyeong Eun Lee, Jung-Hong Ha, Du-Hyeong Lee
STATEMENT OF PROBLEM: Various methods for measuring prosthesis misfit have been suggested. Although the cross-sectional images between the crown and abutment are used to evaluate the misfit, the effects of the image and the observer's knowledge on the precision of measurement are unknown. PURPOSE: The purpose of this in vitro study was to investigate the effects of the image and of education on the precision of prosthesis misfit measurement methods using inter- and intraobserver variability analyses...
August 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28756865/influence-of-remaining-coronal-tooth-structure-on-fracture-resistance-and-failure-mode-of-restored-endodontically-treated-maxillary-incisors
#18
Domingo Santos Pantaleón, Brian R Morrow, David R Cagna, Cornelis H Pameijer, Franklin Garcia-Godoy
STATEMENT OF PROBLEM: Limited information is available on the effect of an incomplete ferrule because of the varying residual axial wall heights and the volume of residual tooth structure on the fracture resistance of endodontically treated and restored maxillary incisors. PURPOSE: The purpose of this in vitro investigation was to examine the effect of varying residual axial wall heights, residual coronal tooth structure, and the absence of 1 proximal axial wall on the fracture resistance and failure mode of endodontically treated teeth restored with metal posts...
July 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28720340/mechanical-strength-and-fracture-point-of-a-dental-implant-under-certification-conditions-a-numerical-approach-by-finite-element-analysis
#19
Guillermo de la Rosa Castolo, Sonia V Guevara Perez, Pierre-Jean Arnoux, Laurent Badih, Franck Bonnet, Michel Behr
STATEMENT OF PROBLEM: Implant prosthodontics provides high-quality outcomes thanks to recent technological developments and certification procedures such as International Organization for Standardization (ISO) standard 14801. However, these certification tests are costly, and the result is highly uncertain as the influence of design variables (materials and structure) is still unknown. The design process could be significantly improved if the influence of design parameters were identified...
July 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28720339/in%C3%A2-vitro-fit-of-cad-cam-complete-arch-screw-retained-titanium-and-zirconia-implant-prostheses-fabricated-on-4-implants
#20
Hadi Al-Meraikhi, Burak Yilmaz, Edwin McGlumphy, William Brantley, William M Johnston
STATEMENT OF PROBLEM: Computer-aided designed and computer-aided manufactured (CAD-CAM) titanium and zirconia implant-supported fixed implant prostheses on 4 implants have become popular. The precision and accuracy of their interface fit has not been widely researched. PURPOSE: The purpose of this in vitro study was to compare the marginal fit of zirconia and titanium implant-supported screw-retained CAD-CAM complete fixed dental prostheses (CFDP) fit with a standardized cast simulating the all-on-4 implant distribution...
July 15, 2017: Journal of Prosthetic Dentistry
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