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Journal of Prosthetic Dentistry

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https://www.readbyqxmd.com/read/28389025/the-effect-of-2-versus-4-implants-on-implant-stability-in-mandibular-overdentures-a-randomized-controlled-trial
#1
Wafa'a R Al-Magaleh, Amal A Swelem, Iman A W Radi
STATEMENT OF PROBLEM: Dental research is rich with articles that investigated the influence of host-site variables, some implant-related variables (implant length, diameter, taper, design, location, and surface topography), different loading protocols or surgical procedures, and measurement methodology on dental implant stability. However, the number of implants and its effect on implant stability remain unclear. PURPOSE: The purpose of this randomized clinical trial was to investigate the influence of implant number on implant stability by comparing 2 versus 4 implants in mandibular implant overdentures...
April 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28389024/accuracy-of-a-digital-removable-partial-denture-fabricated-by-casting-a-rapid-prototyped-pattern-a-clinical-study
#2
Jong-Won Lee, Ji-Man Park, Eun-Jin Park, Seong-Joo Heo, Jai-Young Koak, Seong-Kyun Kim
STATEMENT OF PROBLEM: A limited number of clinical studies have evaluated the accuracy of a digitally generated removable partial denture (RPD) intraorally. An analysis of the accuracy of the digital RPD on a larger number of participants was needed. PURPOSE: The purpose of this clinical study was to analyze the accuracy of digital RPDs by using the replica technique. MATERIAL AND METHODS: The fit accuracy of digital RPDs fabricated using electronic surveying was analyzed by fabricating replicas with silicone registration material and measuring with a stereomicroscope and image program...
April 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385447/a-simplified-method-for-evaluating-the-3-dimensional-cement-space-of-dental-prostheses-by-using-a-digital-scanner
#3
Hyeonjong Lee, Hyeong-Seob Kim, Kwantae Noh, Janghyun Paek, Ahran Pae
Evaluating the cement space of various dental prostheses is important because it is related to the stability and retention of the prosthesis. However, a method for evaluating an overall cement space is complex. The purpose of this technique was to simplify the evaluation of prosthesis cement space by using a digital scanner. The form and thickness of the cement space could be simply recognized in any section the clinician or dental researcher wishes. Moreover, the cement space of several dental prostheses for the same abutment could also be precisely evaluated by superimposition...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385446/dental-and-orofacial-mesenchymal-stem-cells-in-craniofacial-regeneration-the-prosthodontist-s-point-of-view
#4
REVIEW
Sahar Ansari, Jackson T Seagroves, Chider Chen, Kumar Shah, Tara Aghaloo, Benjamin M Wu, Sompop Bencharit, Alireza Moshaverinia
Of the available regenerative treatment options, craniofacial tissue regeneration using mesenchymal stem cells (MSCs) shows promise. The ability of stem cells to produce multiple specialized cell types along with their extensive distribution in many adult tissues have made them an attractive target for applications in tissue engineering. MSCs reside in a wide spectrum of postnatal tissue types and have been successfully isolated from orofacial tissues. These dental- or orofacial-derived MSCs possess self-renewal and multilineage differentiation capacities...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385445/a-combined-digital-and-stereophotogrammetric-technique-for-rehabilitation-with-immediate-loading-of-complete-arch-implant-supported-prostheses-a-randomized-controlled-pilot-clinical-trial
#5
María Peñarrocha-Diago, José Carlos Balaguer-Martí, David Peñarrocha-Oltra, José Francisco Balaguer-Martínez, Miguel Peñarrocha-Diago, Rubén Agustín-Panadero
STATEMENT OF PROBLEM: Traditional impressions for complete-arch restorations are complex and time-consuming, and they can be uncomfortable for the patient. New digital techniques such as stereophotogrammetry may mitigate this. PURPOSE: The purpose of this randomized controlled pilot clinical trial was to compare the patient and dentist satisfaction and work times of traditional impressions (control group) and digital impressions with stereophotogrammetry in complete-arch, implant-supported prostheses...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385444/spectrophotometric-analysis-of-clinical-factors-related-to-the-color-of-ceramic-restorations-a-pilot-study
#6
Ana Paula Perroni, César D Bergoli, Mateus Bertolini F Dos Santos, Rafael R Moraes, Noéli Boscato
STATEMENT OF PROBLEM: Shade matching natural teeth with ceramic restorations is still an esthetic, clinical challenge. PURPOSE: The purpose of this prospective clinical study was to evaluate the influence of color-related factors on the color variation of ceramic restorations based on spectrophotometric analysis. MATERIAL AND METHODS: Color records were obtained from 11 participants who received 38 lithium disilicate restorations. CIELab color coordinates were measured with a spectrophotometer on the ceramic restoration, tooth (baseline), prepared tooth, and luted ceramics...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385443/effectiveness-of-high-power-leds-to-polymerize-resin-cements-through-ceramics-an-in%C3%A2-vitro-study
#7
André L Faria-E-Silva, Carmem S Pfeifer
STATEMENT OF PROBLEM: The cementation of ceramic veneers using light-polymerized resin cement is largely dependent on the proper light activation of the cement. Light activation using high irradiance could shorten the time required to lute multiple restorations. PURPOSE: The purpose of this in vitro study was to evaluate the light transmission of dental light-polymerizing units through ceramic cylinders and its effect on the polymerization kinetics of a resin cement...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385442/restoration-of-a-large-class-iv-fracture-using-direct-composite-resin-a-clinical-report
#8
Mario F Romero, Jamie Austin Grant, Megan Todd
Restoration of anterior tooth fractures is a common dental procedure. Both direct and indirect options are clinically acceptable to repair fractured teeth. For a large class IV fracture, treatment planning is time consuming, and the artistic skills necessary to achieve optimal results can be daunting. This clinical report describes a step-by-step protocol for achieving highly esthetic direct anterior restorations.
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385441/prosthetic-maintenance-of-different-mandibular-implant-overdentures-a-systematic-review
#9
REVIEW
André Assaf, Marwan Daas, Adeline Boittin, Nicolas Eid, Michel Postaire
STATEMENT OF PROBLEM: Different factors can affect prosthetic maintenance requirements for mandibular implant overdentures (IODs). However, the literature shows a high level of disagreement concerning the effect of each factor on maintenance needs. PURPOSE: The purpose of this systematic review was to address the focus question: "In the clinical studies published since 2004 of adult patients with totally edentulous mandibles treated by IODs with a variable number of implants and different designs, what were the maintenance types, frequencies, and complications?" MATERIAL AND METHODS: A search of MEDLINE and PubMed databases was performed targeting papers in English on prosthetic maintenance of mandibular IODs published between 2004 and June 2015, aiming at recognizing the needs for adjustment, repair, and renewal...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385440/quality-of-life-assessment-of-implant-retained-overdentures-and-fixed-metal-acrylic-resin-prostheses-in-patients-with-marginal-mandibulectomy
#10
Banu Karayazgan-Saracoglu, Arzu Atay, Cumhur Korkmaz, Yumushan Gunay
STATEMENT OF PROBLEM: Several factors affect the prosthetic outcome of patients with mandibular defects. However, it is questionable whether fixed or removable implant-supported prostheses meet the expectations and satisfaction of the patients. The perspectives of these patients are important in managing the prosthetic treatment strategies. PURPOSE: The purpose of this prospective clinical study was to evaluate the satisfaction and oral health-related quality of life of patients with marginal mandibulectomies with implant-retained overdentures and fixed metal-acrylic resin prostheses...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385439/functionalized-pink-al2o3-mn-pigments-applied-in-prosthetic-dentistry
#11
Mário Thadeo R Cruzeiro, Fernando A Moraes, Marina R Kaizer, Mário Lúcio Moreira, Yu Zhang, Rafael R Moraes, Sergio S Cava
STATEMENT OF PROBLEM: The color of dental poly(methyl methacrylate) (PMMA) is conventionally rendered by organic and inorganic pigments, which are usually not bonded to the polymer network. Functionalized ceramic pigments can be used to color PMMA, allowing improved chemical interaction with the resin matrix. PURPOSE: The purpose of this in vitro study was to synthesize, functionalize, and characterize pink manganese-doped alumina ceramic pigments. The hypothesis tested was that functionalized ceramic pigments would render pink coloration to a translucent PMMA without jeopardizing its mechanical properties...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385438/effect-of-coarse-grinding-overglazing-and-2-polishing-systems-on-the-flexural-strength-surface-roughness-and-phase-transformation-of-yttrium-stabilized-tetragonal-zirconia
#12
Mahshid Mohammadi-Bassir, Mahdieh Jamshidian, Mohammad Bagher Rezvani, Mansoure Babasafari
STATEMENT OF PROBLEM: Limited information is available for the best polishing systems and methods to obtain minimally abrasive monolithic zirconia surfaces after contouring and occlusal adjustment. PURPOSE: The purpose of this in vitro study was to evaluate the effect of grinding and polishing procedures on the flexural strength, quality and quantity of surface roughness, topography, and phase transformation of a zirconia-based ceramic system. MATERIAL AND METHODS: Fifty bar-shaped yttrium-stabilized zirconium oxide specimens (20×4×2 mm) were cut from presintered zirconia blanks...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385437/effect-of-prior-silane-application-on-the-bond-strength-of-a-universal-adhesive-to-a-lithium-disilicate-ceramic
#13
André Fábio Vasconcelos Moro, Amanda Barreto Ramos, Gustavo Miranda Rocha, Cesar Dos Reis Perez
STATEMENT OF PROBLEM: Universal adhesives combine silane and various monomers in a single bottle to make them more versatile. Their adhesive performance is unclear. PURPOSE: The purpose of this in vitro study was to assess the effects of an additional silane application before using a universal adhesive on the adhesion between a disilicate glass ceramic and a composite resin by using a microshear bond strength test (μSBS) and fracture analysis immediately and after thermocycling...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385436/influence-of-a-removable-prosthesis-on-oral-health-related-quality-of-life-and-mastication-in-elders-with-parkinson-disease
#14
Giselle R Ribeiro, Camila H Campos, Renata Cunha Matheus Rodrigues Garcia
STATEMENT OF PROBLEM: Parkinson disease (PD) symptoms, such as muscle rigidity, tremors in the lips and tongue, and involuntary mandibular movements, may cause oral health-related problems, mastication difficulties, and denture discomfort because of the difficulty in controlling a prosthesis with the oral musculature. PURPOSE: The purpose of this observational clinical study was to evaluate the influence of oral rehabilitation with a removable prosthesis on oral health-related quality of life (OHRQoL) and masticatory efficiency (ME) in elders with PD...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385435/effect-of-repeated-ceramic-firings-on-the-marginal-and-internal-adaptation-of-metal-ceramic-restorations-fabricated-with-different-cad-cam-technologies
#15
Hasan Kocaağaoğlu, Haydar Albayrak, Halil Ibrahim Kilinc, Hasan Önder Gümüs
STATEMENT OF PROBLEM: The use of computer-aided design and computer-aided manufacturing (CAD-CAM) for metal ceramic restorations has increased with advances in the technology. However, little is known about the marginal and internal adaptation of restorations fabricated using laser sintering (LS) and soft milling (SM). Moreover, the effects of repeated ceramic firings on the marginal and internal adaptation of metal ceramic restorations fabricated with LS and SM is also unknown. PURPOSE: The purpose of this in vitro study was to investigate the effects of repeated ceramic firings on the marginal and internal adaptation of metal ceramic copings fabricated using the lost wax (LW), LS, and SM techniques...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385434/computer-aided-analysis-of-digital-dental-impressions-obtained-from-intraoral-and-extraoral-scanners
#16
Lauren Oliveira Lima Bohner, Graziela De Luca Canto, Bruno Silva Marció, Dalva Cruz Laganá, Newton Sesma, Pedro Tortamano Neto
STATEMENT OF PROBLEM: The internal and marginal adaptation of a computer-aided design and computer-aided manufacturing (CAD-CAM) prosthesis relies on the quality of the 3-dimensional image. The quality of imaging systems requires evaluation. PURPOSE: The purpose of this in vitro study was to evaluate and compare the trueness of intraoral and extraoral scanners in scanning-prepared teeth. MATERIAL AND METHODS: Ten acrylic resin teeth to be used as a reference dataset were prepared according to standard guidelines and scanned with an industrial computed tomography system...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385433/simplified-edentulous-treatment-a-multicenter-randomized-controlled-trial-to-evaluate-the-timing-and-clinical-outcomes-of-the-technique
#17
Paola Ceruti, Nicola Mobilio, Elisabetta Bellia, Andrea Borracchini, Santo Catapano, Gianfranco Gassino
STATEMENT OF PROBLEM: The time and cost of conventional complete denture procedures have been questioned in favor of simplified and faster methods. Whether the simplified edentulous treatment (SET) method yields complete dentures with acceptable outcomes is unclear. PURPOSE: The purpose of this randomized clinical trial (RCT) was to evaluate the outcomes of 2 techniques in providing complete dentures: the conventional and the SET methods. MATERIAL AND METHODS: Three Italian academic institutions participated in this single-blind parallel RCT...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385432/effect-of-different-housing-retaining-materials-on-the-flexural-strength-of-an-acrylic-resin-overdenture-base
#18
Serhat Emre Ozkir, Burak Yilmaz
STATEMENT OF PROBLEM: An attachment housing inside an overdenture may weaken the acrylic resin base. The type of housing retaining material may affect the strength of the housing retaining material-acrylic resin base assembly. The effect of different housing retaining materials on the strength of acrylic resin base is unknown. PURPOSE: The purpose of this in vitro study was to evaluate the effects of different materials used to retain the housing on the flexural strength of a poly(methyl methacrylate) (PMMA) resin base...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385431/color-stability-of-ceramic-laminate-veneers-cemented-with-light-polymerizing-and-dual-polymerizing-luting-agent-a-split-mouth-randomized-clinical-trial
#19
Ana Maria Estivalete Marchionatti, Vinícius Felipe Wandscher, Michele Mirian May, Marco Antonio Bottino, Liliana Gressler May
STATEMENT OF PROBLEM: The color stability of luting agents influences the esthetics of ceramic laminate veneers. Clinical studies that have evaluated the color changes of veneers cemented to enamel with light- and dual-polymerizing resin cement are lacking. PURPOSE: The purpose of this split-mouth randomized clinical trial was to evaluate the color change and marginal discoloration of dual- and light-polymerizing cement used for cementation of ceramic laminate veneers...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385430/clinician-assessments-and-patient-perspectives-of-single-tooth-implant-restorations-in-the-esthetic-zone-of-the-maxilla-a-systematic-review
#20
REVIEW
Sirikarn P Arunyanak, Adrien Pollini, Athanasios Ntounis, Dean Morton
STATEMENT OF PROBLEM: Esthetic outcomes associated with implant dentistry are important to both clinicians and patients. However, esthetic satisfaction may vary between the 2 groups. In order to evaluate the current publications relating to this topic, the following focused question was developed, "what are the quantitative and qualitative differences between clinician evaluations and patient perspectives in the assessment of single-tooth implant outcomes in the esthetic zone?" PURPOSE: The purpose of this systematic review was to identify differences in esthetic satisfaction between clinicians and patients when evaluating single-tooth implant-supported restorations...
April 3, 2017: Journal of Prosthetic Dentistry
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