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Journal of Prosthodontics: Official Journal of the American College of Prosthodontists

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https://www.readbyqxmd.com/read/30412320/remake-rates-for-single-unit-crowns-in-clinical-practice-findings-from-the-national-dental-practice-based-research-network
#1
Michael S McCracken, Mark S Litaker, Valeria V Gordan, Thomas Karr, Ellen Sowell, Gregg H Gilbert
PURPOSE: Some crowns returned from the laboratory are clinically unacceptable, and dentists must remake them. The objectives of this study were to: 1) quantify the remake rate of single-unit crowns; and 2) identify factors significantly associated with crown remakes and intraoral fit. MATERIALS AND METHODS: Dentists participating in the National Dental Practice-Based Research Network recruited patients needing crowns and documented fabrication techniques, patient characteristics, and outcomes...
November 9, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30407685/an-in-vitro-investigation-of-accuracy-and-fit-of-conventional-and-cad-cam-removable-partial-denture-frameworks
#2
Pooya Soltanzadeh, Montry S Suprono, Mathew T Kattadiyil, Charles Goodacre, Wendy Gregorius
PURPOSE: To evaluate the overall accuracy and fit of conventional versus computer-aided design/computer-aided manufactured (CAD/CAM) removable partial denture (RPD) frameworks based on standard tessellation language (STL) data analysis, and to evaluate the accuracy and fit of each component of the RPD framework. MATERIALS AND METHODS: A maxillary metal framework was designed for a Kennedy class III Modification I arch. The master model was scanned and used to compare the fit and accuracy of RPD frameworks...
November 8, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30381847/effect-of-denture-cleansers-on-the-cobalt-chromium-alloy-surface-a-simulated-period-of-5-years-use
#3
Patrícia Almeida Curylofo, Priscilla Neves Raile, Glenda Lara Lopes Vasconcellos, Ana Paula Macedo, Valéria Oliveira Pagnano
PURPOSE: To compare the effect of solutions of effervescent tablets (ET), cetylpyridinium chloride (CPC), and experimental solutions of Ricinus communis on the surface of cobalt-chromium (Co-Cr) alloys. MATERIALS AND METHODS: Fifty-five specimens of Co-Cr were prepared by the lost-wax casting method using circular patterns (∅12 × 3 mm). The specimens were randomly divided into 5 groups: deionized water (control); 2% R. communis; 10% R. communis; ET and CPC. The surface roughness of specimens (n = 10) was evaluated before immersion (baseline), and at simulated times of ½, 1, 2, 3, 4, and 5 years, by laser confocal microscope (Sa, μm) and profilometer (Ra, μm)...
October 31, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30375110/patient-expectation-and-satisfaction-with-different-prosthetic-treatment-modalities
#4
Joshua Colvin, Deborah V Dawson, Hongjie Gu, Leonardo Marchini
PURPOSE: To investigate the relationships between gender, age, patients' perceptions about the dentists' conduct, number of adjustments, treatment type, and expectation prior to prosthetic treatment and patient satisfaction with their treatments. MATERIALS AND METHODS: Data were integrated from four studies that measured patient expectations before treatment and satisfaction after treatment using a visual analog scale (VAS) from 0 to 10. These scores were given for each of four aspects of the therapeutic outcomes: chewing, esthetics, phonetics, and comfort...
October 29, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30365198/randomized-controlled-clinical-study-to-determine-the-oral-and-dermal-tolerability-of-an-experimental-denture-wipe
#5
Alyson Axe, Gary R Burnett, Kimberly R Milleman, Avinash Patil, Jeffery L Milleman
PURPOSE: To evaluate oral and dermal tolerance following use and user acceptability of an experimental denture-cleansing wipe. An exploratory objective was to develop a method to assess denture-wipe effectiveness in removing debris from denture surfaces. MATERIALS AND METHODS: This was a single-center, randomized, controlled, parallel-group, examiner-blind study in participants with ≥1 full/partial denture. Participants were randomized to clean their dentures with the denture wipe (n = 76) or water (n = 76) up to 4 times per day for 14 days...
October 26, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30357992/implant-digital-impression-in-esthetic-area
#6
Carlo Monaco, Lorenzo Scheda, Paolo Baldissara, Giovanni Zucchelli
The aim of this report is to describe two standardized protocols for digital impression when implant support rehabilitation is used in the esthetic area. The two techniques were used to transfer all provisional crown parameters to definitive restorations in different clinical scenarios. In the direct technique, an impression (STL1) is made of the provisional restorations attached to the implants, with surrounding gingival tissue. The second scan (STL2) captures the sulcular aspect of the peri-implant soft tissue immediately after removal of the provisional restoration...
October 25, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30357978/clinical-management-protocol-for-dental-implants-inserted-in-patients-with-active-lichen-planus-part-ii-4-year-follow-up
#7
Aya Khamis Khamis, Moustafa Nabil Aboushelib, Mohamed Hamdy Helal
PURPOSE: To evaluate marginal bone loss (MBL) of dental implants inserted in active lichen planus patients. MATERIALS AND METHODS: The study included 59 subjects divided into 3 groups depending on their lichen planus diagnosis and administration of a low dose of corticosteroids: 17 healthy individuals, 20 controlled lichen planus patients controlled using low doses of systemic corticosteroids, and 22 non-controlled lichen planus patients. During 4-year follow-up sessions MBL was evaluated, and biopsies were collected from lichen planus patients and examined...
October 25, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30357985/prosthetic-rehabilitation-with-palatal-lift-augmentation-in-a-patient-with-neurologic-motor-deficit-due-to-cancer-therapy-for-chondrosarcoma
#8
REVIEW
Midhat M Asfar, Katherine A Hutcheson, Alexander M Won
This clinical report describes the prosthetic rehabilitation of a 25-year-old man with a history of grade II chondrosarcoma at the skull base who had undergone surgical resection and thereafter developed velopharyngeal incompetency (VPI), dysarthria, and dysphagia. Upon baseline fiberoptic endoscopic evaluation of swallowing (FEES), the patient had an atypical pattern of VPI with minimal to no velar lift during speech, blow, or suck tasks, but near complete velar lift and seal during swallowing. A palatal augmentation prosthesis combined with a resilient palatal lift extension was fabricated to enhance speech by displacing the soft palate and to decrease hypernasality, while avoiding interference with bolus transport...
October 24, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30353608/effect-of-nanodiamond-addition-on-flexural-strength-impact-strength-and-surface-roughness-of-pmma-denture-base
#9
Fahad A Al-Harbi, Mohamed S Abdel-Halim, Mohammed M Gad, Shaimaa M Fouda, Nadim Z Baba, Hamad S AlRumaih, Sultan Akhtar
PURPOSE: To assess the effect of addition of different concentrations of nanodiamonds (NDs) on flexural strength, impact strength, and surface roughness of heat-polymerized acrylic resin. MATERIALS AND METHODS: 120 specimens were fabricated from heat-polymerized acrylic resin. They were divided into a control group of pure polymethylmethacrylate (PMMA; Major.Base.20) and three tested groups (PMMA-ND) with 0.5%wt, 1%wt, and 1.5%wt of added ND to PMMA. Flexural strength was determined using the three-point bending test...
October 23, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350399/a-new-device-to-prevent-aspiration-or-swallowing-of-implant-screwdrivers
#10
Marc Appelbaum
The screwdriver harness is potentially a life-saving device. It allows the clinician to work intraorally with a handheld screwdriver without the concern of unintentionally losing contact with the driver, risking the possibility of aspiration or swallowing by the patient.
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350385/early-implant-failure-associated-with-patient-factors-surgical-manipulations-and-systemic-conditions
#11
Alan B Carr, Noura Arwani, Christine M Lohse, Ricardo L Vidal Gonzalez, Olivia M Muller, Thomas J Salinas
PURPOSE: Systematic monitoring of important clinical outcomes is increasingly important for health-care decision making, especially in the context of continuous quality improvement. Dental implant failure within the first year (early failure) has been previously shown to be more common than subsequent failure. The purpose of this study was to identify associations between early implant failure and patient factors, surgical manipulations, and systemic conditions. MATERIALS AND METHODS: The authors retrospectively identified the records of consecutive adult patients with dental implants seen between 2000 and 2014 in the Department of Dental Specialties, at the Mayo Clinic...
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350377/internal-adaptation-of-implant-supported-polymer-infused-ceramic-crowns-fabricated-by-two-cad-cam-systems
#12
Reem Talic, Sara A Alfadda
PURPOSE: The aim of this in vitro study was to compare the internal 3D adaptation of polymer-infused ceramic crowns fabricated using two CAD/CAM systems: CEREC inLab MC XL and Ceramill Motion 2 (5X). MATERIALS AND METHODS: Twenty-five implant-supported metal-ceramic crowns were fabricated conventionally using the lost-wax technique, and the outer contour was scanned to serve as a guide for designing the polymer-infused ceramic CAD/CAM crowns. Twenty-five crowns were fabricated using CEREC, and 25 crowns were fabricated using Ceramill...
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350332/interproximal-open-contacts-between-implant-restorations-and-adjacent-teeth-prevalence-causes-possible-solutions
#13
REVIEW
Spyridon Varthis, Dennis P Tarnow, Anthony Randi
PURPOSE: To present the prevalence and contributing factors of interproximal contact loss (ICL) between implant restorations and adjacent teeth, and to provide recommendations for possible prevention and treatment of this complication. MATERIALS AND METHODS: The authors explored the dental literature on PubMed on ICL between implants and adjacent teeth, interproximal contacts, open contacts, teeth migration causes, facial bone formation, and facial bone changes...
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350330/nonimplant-nonadhesive-overlay-approach-to-retain-a-partial-auricular-prosthesis
#14
Snehkiran Raghuvanshi, Pooran Chand, Saumyendra V Singh, Himanshi Aggarwal, Deeksha Arya
Partial auricular prosthesis fabrication presents a more complex challenge than complete ear fabrication, with added aspects of merging/camouflaging a larger prosthetic marginal area, pattern try-in, and compromised retention. Better alternatives are excision of the remnant ear to make an implant-retained complete ear prosthesis or surgical reconstruction of the missing ear portion. Both need additional surgery/ies and expenses, neither of which may be acceptable to the patient. This report describes a prosthesis fabrication approach for such patients...
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30350325/multidisciplinary-management-of-a-severe-maxillary-midline-diastema-a-clinical-report
#15
Nazmiye Şen, Sabire Işler
A maxillary midline diastema (MMD) is a common form of incomplete occlusion and often is a primary complaint of patients during dental consultations. MMD is considered to be a multifactorial phenomenon and can therefore be best restored with a multidisciplinary approach. This clinical report presents a multidisciplinary approach to the management of a 4.0-mm MMD by using limited orthodontics combined with periodontal and prosthodontic treatments.
October 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30345575/cad-cam-constructed-poly-etheretherketone-peek-framework-of-kennedy-class-i-removable-partial-denture-a-clinical-report
#16
Islam E Harb, Elsayed A Abdel-Khalek, Salah A Hegazy
The prevalence of partially edentulous adults that could be treated by removable partial dentures (RPDs) is estimated to be greater than 20% in some regions of the United States. Problems related to traditional materials for RPD construction have been documented. Advances in polymer-based materials and digital fabrication strategies would allow increased biocompatibility, durability, and elasticity, as well as more esthetically pleasing and cost-effective benefits. This article reports on poly(etheretherketone) RPD framework produced by digital and milling technology...
October 21, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30320422/evaluation-of-radiopacity-of-luting-cements-submitted-to-different-aging-procedures
#17
Rafael B Junqueira, Rodrigo F Carvalho, Felipe A G F Yamamoto, Solange M Almeida, Francielle S Verner
PURPOSE: To evaluate the radiopacity of luting cements submitted to different aging procedures. MATERIALS AND METHODS: Twenty discs (1 × 4 mm) of each of the following cements were prepared: zinc phosphate, RelyX Luting 2, Variolink 2, AllCem, RelyX U200, Multilink, Panavia F2.0, and RelyX ARC. Then, they were randomly divided into two groups (n = 10/group), according to the aging procedure: thermal cycling group and water storage group. Before and after aging procedures, specimens were x-rayed with an aluminum step-wedge (11 steps, 1 mm thick each) and three dental slices (1 mm thick)...
October 15, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30311319/preparation-techniques-used-to-make-single-unit-crowns-findings-from-the-national-dental-practice-based-research-network
#18
Helena M Minyé, Gregg H Gilbert, Mark S Litaker, Rahma Mugia, Cyril Meyerowitz, David R Louis, Alan Slootsky, Valeria V Gordan, Michael S McCracken
PURPOSE: To: (1) determine which preparation techniques clinicians use in routine clinical practice for single-unit crown restorations; (2) test whether certain practice, dentist, and patient characteristics are significantly associated with these techniques. METHODS: Dentists in the National Dental Practice-Based Research Network participated in a questionnaire regarding preparation techniques, dental equipment used for single-unit crown preparations, scheduled chair time, occlusal clearance determination, location of finish lines, magnification during preparation, supplemental lighting, shade selection, use of intraoral photographs, and trimming dies...
October 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30307086/early-implant-failures-in-edentulous-patients-a-multivariable-regression-analysis-of-4615-consecutively-treated-jaws-a-retrospective-study
#19
Malin Olsson Malm, Torsten Jemt, Victoria Stenport
PURPOSE: To study the incidence of early implant failures in edentulous jaws and to describe the effects of some patient- and implant-related factors on the risk for early implant failures. MATERIALS AND METHODS: The study retrospectively analyzed 4615 edentulous jaws (4067 patients), consecutively treated with dental implants at one referral clinic from 1986 to 2013. Implant failures that occurred from implant surgery up to the first recall examination 1 year after prosthesis insertion were recorded and defined as early implant failures...
October 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/30307085/digital-learning-resources-for-prosthodontic-education-the-perspectives-of-a-long-term-dental-educator-regarding-4-key-factors
#20
Charles J Goodacre
Technological advances have led to the introduction of 3D education programs specifically designed for dentistry, leading to the author's use of these programs in the education of dental students. Based on this usage, this paper proposes there are 4 key factors that can enhance student education (spatial ability, interactivity, critical thinking, and clinical correlations with integration of multiple dental disciplines). These key factors can be incorporated into student learning through the use of 3D education programs in class...
October 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
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