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https://www.readbyqxmd.com/read/28804719/effect-of-2-bleaching-agents-with-a-content-of-high-concentrated-hydrogen-peroxide-on-stained-2-cad-cam-blocks-and-a-nanohybrid-composite-resin-an-afm-evaluation
#1
İzgen Karakaya, Esra Cengiz
The aim of this study was to evaluate color stability of 3 restorative materials, discoloration ability of different solutions, efficacy of 2 office bleaching agents, and surface roughness and topography. Sixty specimens for Clearfil Majesty Esthetic (CME), Lava Ultimate (LU), and Vita Enamic (VE) were prepared. They were immersed into 3 staining solutions for 2 weeks and then they were bleached. According to the measured L(⁎), a(⁎), and b(⁎) parameters described by CIELAB system, color changes (ΔE00), translucency parameters (TP), whiteness index values (W(⁎)), and changes in closeness to pure white (ΔW(⁎)) were calculated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28798460/cerec-an-open-complete-cad-cam-system-with-smart-software
#2
(no author information available yet)
No abstract text is available yet for this article.
August 11, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28793965/clinical-accuracy-of-waferless-maxillary-positioning-using-customized-surgical-guides-and-patient-specific-osteosynthesis-in-bimaxillary-orthognathic-surgery
#3
Marcus Heufelder, Frank Wilde, Sebastian Pietzka, Frank Mascha, Karsten Winter, Alexander Schramm, Majeed Rana
Computer-assisted planning and surgery for the treatment of orthognathic deformities have been extensively documented over the last decade. Computerized and customized wafers have lacked to improve the accuracy of maxillary positioning, resulting in a drawback of computer-assisted orthognathic surgery. The aim of this study was to determine the accuracy of a new technique of waferless maxillary positioning using customized surgical guides and patient specific osteosynthesis implants in bimaxillary orthognathic surgery...
July 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28781072/mechanical-and-optical-properties-of-monolithic-cad-cam-restorative-materials
#4
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/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
#5
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/28772602/wear-behavior-of-ceramic-cad-cam-crowns-and-natural-antagonists
#6
Ella A Naumova, Stephan Schneider, Wolfgang H Arnold, Andree Piwowarczyk
OBJECTIVE: Evaluation of wear behavior of computer-aided design/computer-aided manufacturing (CAD/CAM) crowns from various restorative materials and natural antagonists. METHOD: Full CAD/CAM crowns fabricated with nanoceramic resin (Lava Ultimate (LU)), a glass ceramic in a resin interpenetrating matrix (Vita Enamic (VE)) and a lithium silicate reinforced ceramic enriched with zirconia (Vita Suprinity (VS)) were cemented on human molars. The crown and antagonists were subjected to simulated chewing...
February 28, 2017: Materials
https://www.readbyqxmd.com/read/28772451/marginal-accuracy-and-internal-fit-of-3-d-printing-laser-sintered-co-cr-alloy-copings
#7
Myung-Joo Kim, Yun-Jung Choi, Seong-Kyun Kim, Seong-Joo Heo, Jai-Young Koak
Laser sintered technology has been introduced for clinical use and can be utilized more widely, accompanied by the digitalization of dentistry and the development of direct oral scanning devices. This study was performed with the aim of comparing the marginal accuracy and internal fit of Co-Cr alloy copings fabricated by casting, CAD/CAM (Computer-aided design/Computer-assisted manufacture) milled, and 3-D laser sintered techniques. A total of 36 Co-Cr alloy crown-copings were fabricated from an implant abutment...
January 23, 2017: Materials
https://www.readbyqxmd.com/read/28770254/3d-correction-of-ais-in-braces-designed-using-cad-cam-and-fem-a-randomized-controlled-trial
#8
Nikita Cobetto, Carl-Éric Aubin, Stefan Parent, Soraya Barchi, Isabelle Turgeon, Hubert Labelle
BACKGROUND: Recent studies showed that finite element model (FEM) combined to CAD/CAM improves the design of braces for the conservative treatment of adolescent idiopathic scoliosis (AIS), using 2D measurements from in-brace radiographs. We aim to assess the immediate effectiveness on curve correction in all three planes of braces designed using CAD/CAM and numerical simulation compared to braces designed with CAD/CAM only. METHODS: SRS standardized criteria for bracing were followed to recruit 48 AIS patients who were randomized into two groups...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28770115/comprehensive-treatments-for-congenitally-missing-teeth-and-generalized-diastema
#9
Mehran Bahrami, Fariba Saleh Saber, Amirreza Hendi
Congenitally missing teeth and/or hypodontia is a prevalent dental anomaly. There are different treatment options available for these conditions such as space maintenance, restoring the space by resin-bonded-fixed-partial-dentures (RBFPDs), and dental implants. This study addresses the comprehensive treatments for congenitally missing tooth and diastema using interdisciplinary approaches. One patient was treated with small-diameter-implants and the other one was treated using an intraoral scanner to make digital impression and fabricating RBFPDs with CAD/CAM system...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28765443/integration-of-digital-dentistry-into-a-predoctoral-implant-program-program-description-rationale-and-utilization-trends
#10
Fatemeh S Afshari, Cortino Sukotjo, Maria F Alfaro, Jeri McCombs, Stephen D Campbell, Kent L Knoernschild, Judy Chia-Chun Yuan
A recently revised predoctoral implant curriculum at the University of Illinois at Chicago College of Dentistry integrated digital dentistry into both the preclinical dental implant course and clinical activities. Traditionally, competence in the didactic and clinical parts of predoctoral education in single tooth implant restorations has emphasized the analog impression technique and subsequent mounting of soft tissue working casts. However, computer-aided design/computer-aided manufacturing (CAD/CAM) implant restorations can play a significant role in predoctoral dental education utilizing digital technologies...
August 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28750105/additive-manufacturing-techniques-in-prosthodontics-where-do-we-currently-stand-a-critical-review
#11
Nawal Alharbi, Daniel Wismeijer, Reham B Osman
PURPOSE: The aim of this article was to critically review the current application of additive manufacturing (AM)/3D-printing techniques in prosthodontics and to highlight the influence of various technical factors involved in different AM technologies. MATERIALS AND METHODS: A standard approach of searching MEDLINE, EMBASE, and Google Scholar databases was followed. The following search terms were used: (Prosth* OR Restoration) AND (Prototype OR Additive Manufacture* OR Compute* OR 3D-print* OR CAD/CAM) AND (Dentistry OR Dental)...
July 27, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28748521/clinical-outcome-of-alveolar-ridge-augmentation-with-individualized-cad-cam-produced-titanium-mesh
#12
K Sagheb, E Schiegnitz, M Moergel, C Walter, B Al-Nawas, W Wagner
BACKGROUND: The augmentation of the jaw has been and continues to be a sophisticated therapy in implantology. Modern CAD-CAM technologies lead to revival of old and established augmentation techniques such as the use of titanium mesh (TM) for bone augmentation. The aim of this retrospective study was to evaluate the clinical outcome of an individualized CAD-CAM-produced TM based on the CT/DVT-DICOM data of the patients for the first time. METHODS: In 17 patients, 21 different regions were augmented with an individualized CAD-CAM-produced TM (Yxoss CBR®, Filderstadt, Germany)...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28740324/microhardness-evaluations-of-cad-cam-ceramics-irradiated-with-co2-or-nd-yap-laser
#13
Ahmed El Gamal, Jean Paul Rocca, Carlo Fornaini, Etienne Medioni, Nathalie Brulat-Bouchard
BACKGROUND AND AIMS: The aim of this study was to measure the microhardness values of irradiated computer-aided design/computer-aided manufacturing (CAD/CAM) ceramics surfaces before and after thermal treatment. MATERIALS AND METHODS: Sixty CAD/CAM ceramic discs were prepared and grouped by material, i.e. lithium disilicate ceramic (Emax CAD) and zirconia ceramic (Emax ZirCAD). Laser irradiation at the material surface was performed with a carbon dioxide laser at 5 Watt (W) or 10 W power in continuous mode (CW mode), or with a neodymium:yttrium aluminum perovskite (Nd:YAP) laser at 10 W on graphite and non-graphite surfaces...
March 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/28734997/influence-of-preparation-fitting-and-cementation-on-the-vitro-performance-and-fracture-resistance-of-cad-cam-crowns
#14
Martin Rosentritt, Verena Preis, Michael Behr, Sebastian Hahnel
OBJECTIVES: To investigate debonding and stability of CAD/CAM composite crowns as a function of (a) preparation design, (b) fitting parameters of the milling process, and (c) type of cementation. METHODS: Extracted human molars were prepared providing either retentive design (R) or no retention (NR). After digitalization, full-contour crowns were milled using either optimal (OF) or reduced (RF) fitting parameters. A total of 112 crowns were milled from the composite materials Lava Ultimate (L) and Grandio Blocs (G) and a ceramic reference...
July 19, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28721994/evaluation-of-marginal-and-internal-gaps-of-metal-ceramic-crowns-obtained-from-conventional-impressions-and-casting-techniques-with-those-obtained-from-digital-techniques
#15
Rathika Rai, S Arun Kumar, R Prabhu, Ranjani Thillai Govindan, Faiz Mohamed Tanveer
BACKGROUND: Accuracy in fit of cast metal restoration has always remained as one of the primary factors in determining the success of the restoration. A well-fitting restoration needs to be accurate both along its margin and with regard to its internal surface. AIM: The aim of the study is to evaluate the marginal fit of metal ceramic crowns obtained by conventional inlay casting wax pattern using conventional impression with the metal ceramic crowns obtained by computer-aided design and computer-aided manufacturing (CAD/CAM) technique using direct and indirect optical scanning...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
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
#16
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
https://www.readbyqxmd.com/read/28720338/complete-denture-fabrication-using-piezography-and-cad-cam-a-clinical-report
#17
Chikahiro Ohkubo, Hidemasa Shimpo, Ai Tokue, Eun-Jin Park, Tae Hyung Kim
To provide maxillary and mandibular complete dentures for a patient with severe ridge resorption, the denture space was recorded using the piezography technique. After the piezographic space was scanned, a virtual tooth arrangement and festooning were performed within the space using computer-aided design software. The denture bases were milled from a polymethylmethacrylate resin block using computer-aided manufacturing, and commercially available denture teeth were bonded with resin adhesive. Using the piezography technique described, physiologically appropriate complete dentures were fabricated based on the neutral zone concept...
July 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28717792/accelerated-fatigue-resistance-%C3%A2-of-novel-design-histoanatomic-%C3%A2-implant-restorations-made-of-%C3%A2-cad-cam-bilaminar-assemblies
#18
Ivan Molina, Jack Goldberg, Claudia Maziero Volpato, Pascal Magne
OBJECTIVES: Evaluate the fatigue resistance and failure mode of novel-design implant restorations made of histoanatomic computer-assisted design/computer-assisted manufacturing (CAD/CAM) bilaminar bonded assemblies. MATERIAL AND METHODS: 60 screw-retained implant restorations were fabricated. Monolithic restorations were used as a control group (15 lithium disilicate: group CE; and 15 nanofilled composite resin: group CL), and compared with bilaminar restorations (15 dentin-shaped lithium disilicate mesostructures with a bonded nanofilled composite resin veneer: group CEL; and 15 dentin-shaped nanofilled composite resin mesostructures with a bonded lithium disilicate veneer: group CLE)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28717635/the-fabrication-of-a-customized-occlusal-splint-based-on-the-merging-of-dynamic-jaw-tracking-records-cone-beam-computed-tomography-and-cad-cam-digital-impression
#19
Katerina Aslanidou, Chung How Kau, Christos Vlachos, Tayem Abou Saleh
OBJECTIVES: The aim of this case report was to present the procedure of fabricating a customized occlusal splint, through a revolutionary software that combines cone beam computed tomography (CBCT) with jaw motion tracking (JMT) data and superimposes a digital impression. MATERIALS AND METHODS: The case report was conducted on a 46-year-old female patient diagnosed with the temporomandibular disorder. A CBCT scan and an optical impression were obtained. The range of the patient's mandibular movements was captured with a JMT device...
July 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28713601/resin-nanoceramic-cad-cam-restoration-of-the-primary-molar-3-year-follow-up-study
#20
Akif Demirel, Tuğba Bezgin, Funda Akaltan, Şaziye Sarı
This case report presents the clinical use of a resin nanoceramic CAD/CAM restoration of a primary second molar without successor in the form of a permanent second premolar tooth in a patient. Three-year follow-up of the case revealed that resin nanoceramic CAD/CAM restoration of the primary molar without successor achieved both aesthetics and function. Despite the high cost of treatment, this type of restoration should be considered if the retained tooth is expected to maintain functionality over the long term...
2017: Case Reports in Dentistry
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