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CAD/CAM in prosthodontic

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https://www.readbyqxmd.com/read/28630955/chairside-systems-a-current-review
#1
Markus Zaruba, Albert Mehl
Since Cerec (Chairside Economical Restoration of Esthetic Ceramics) was introduced as the first dental chairside computer-aided design/computer-aided manufacturing (CAD/CAM) system in the mid-1980s, this technology has enjoyed growing popularity, particularly in the recent past. There has been a considerable increase in the number of available chairside systems in only the last few years. One of the main reasons for this is that intraoral scanners have become increasingly better, smaller, and faster, while the design software has become more and more user-friendly...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28461637/dental-students-perceptions-of-digital-assessment-software-for-preclinical-tooth-preparation-exercises
#2
Carly F Park, Justin M Sheinbaum, Yasushi Tamada, Raina Chandiramani, Lisa Lian, Cliff Lee, John Da Silva, Shigemi Ishikawa-Nagai
Objective self-assessment is essential to learning and continued competence in dentistry. A computer-assisted design/computer-assisted manufacturing (CAD/CAM) learning software (prepCheck, Sirona) allows students to objectively assess their performance in preclinical prosthodontics. The aim of this study was to evaluate students' perceptions of CAD/CAM learning software for preclinical prosthodontics exercises. In 2014, all third-year dental students at Harvard School of Dental Medicine (n=36) were individually instructed by a trained faculty member in using prepCheck...
May 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28352204/marginal-fit-of-all-ceramic-crowns-fabricated-using-two-extraoral-cad-cam-systems-in-comparison-with-the-conventional-technique
#3
Fawaz Alqahtani
OBJECTIVE: The purpose of this study was to determine the effect of two extraoral computer-aided design (CAD) and computer-aided manufacturing (CAM) systems, in comparison with conventional techniques, on the marginal fit of monolithic CAD/CAM lithium disilicate ceramic crowns. STUDY DESIGN: This is an in vitro interventional study. PLACE AND DURATION OF STUDY: The study was carried out at the Department of Prosthodontics, School of Dentistry, Prince Sattam Bin Abdul-Aziz University, Saudi Arabia, from December 2015 to April 2016...
2017: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/28326203/esthetic-rehabilitation-of-anterior-teeth-with-copy-milled-restorations-a-report-of-two-cases
#4
Sapna Rani, Jyoti Devi, Chandan Jain, Parul Mutneja, Mahesh Verma
Digitalization has become part and parcel of contemporary prosthodontics with the probability of most of the procedures being based on the digital techniques in the near future. This digital revolution started in the latter half of the 20th century by converting analog objects/signals into digital bits and bytes. Recent developments in all-ceramic materials and systems of computer-aided designing and computer-aided manufacturing (CAD/CAM), copy milling, and so forth offer excellent esthetics and superb biocompatibility...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28316122/digital-workflow-for-fixed-implant-rehabilitation-of-an-extremely-atrophic-edentulous-mandible-in-three-appointments
#5
Panos Papaspyridakos, Neha Rajput, Yukio Kudara, Hans-Peter Weber
OBJECTIVE: To present a rationale to reduce treatment complexity, number of surgeries, and overall treatment time for patients with extreme mandibular ridge deficiency. CLINICAL CONSIDERATIONS: A 67-year-old fully edentulous male presented with a chief complaint of poor retention and stability of the mandibular complete denture with consequent discomfort and inability to chew. A novel 3-appointment protocol from guided implant placement to definitive prosthesis delivery was implemented...
March 18, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28273692/the-extent-and-scope-of-prosthodontic-practice-in-iowa
#6
Ronald L Ettinger, Zachary S Goettsche, Fang Qian
PURPOSE: The purpose of this questionnaire was to ask general dentists in private practice in the state of Iowa about the extent and scope of their prosthodontic practice. MATERIALS AND METHODS: A 22-item questionnaire was developed and tested on 5 general dentists. The Iowa Dental Association agreed to electronically distribute the survey to all general practice dentists in their database. After three rounds, a total of 289 responses were received from the 996 general dentists in the database...
March 8, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28267817/evaluation-of-currently-available-cad-cam-denture-systems
#7
Patricia-Anca Steinmassl, Florian Klaunzer, Otto Steinmassl, Herbert Dumfahrt, Ingrid Grunert
PURPOSE: The introduction of computer-aided design/computer-assisted manufacture (CAD/CAM) technology into removable denture prosthodontics enables denture adaptation in fewer patient visits, an advantage that appeals to dentists and patients. Since manufacturers follow very different approaches, an evaluation of the different clinical CAD/CAM complete denture fabrication protocols is desirable. The aim of this article is to assess and evaluate the different clinical fabrication protocols of currently available CAD/CAM denture systems to provide decision support for dental practitioners...
March 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28203007/-diagnossis-and-treatment-of-complicated-anterior-teeth-esthetic-defects-by-combination-of-whole-process-digital-esthetic-rehabilitation-with-periodontic-surgery
#8
Z Li, Y S Liu, H Q Ye, Y S Liu, W J Hu, Y S Zhou
OBJECTIVE: To explore a new method of whole-process digital esthetic prosthodontic rehabilitation combined with periodontic surgery for complicated anterior teeth esthetic defects accompanied by soft tissue morphology, to provide an alternative choice for solving this problem under the guidance of three-dimensional (3D) printing digital dental model and surgical guide, thus completing periodontic surgery and digital esthetic rehabilitation of anterior teeth. METHODS: In this study, 12 patients with complicated esthetic problems accompanied by soft tissue morphology in their anterior teeth were included...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28093860/monolithic-implant-supported-lithium-disilicate-ls2-crowns-in-a-complete-digital-workflow-a-prospective-clinical-trial-with-a-2-year-follow-up
#9
Tim Joda, Marco Ferrari, Urs Brägger
BACKGROUND: The technical development of digital processing allows the production of anatomically full-contoured implant-supported restorations. PURPOSE: The aim of this prospective clinical trial was to analyze the treatment concept of monolithic lithium disilicate (LS2) single-unit restorations in a complete digital workflow. MATERIAL AND METHODS: Forty-four patients were restored with 50 screw-retained monolithic implant LS2 crowns bonded to pre-fabricated titanium abutments on soft tissue level implants (Institut Straumann AG, Basel, Switzerland) in premolar and molar sites...
June 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28008430/surgical-and-prosthetic-dental-rehabilitation-through-a-complete-digital-workflow-a-case-report
#10
Panagiotis Tsirogiannis, Sascha Pieger, Stavros Pelekanos, Stefanos Kourtis
Several aspects of digital dentistry have recently been improved, including new materials, navigated implant placement, digital impression in combination with virtual articulation, and the computer-aided processes of designing and manufacturing of prosthetic restorations. In this case report, the prosthodontic treatment of a patient through a complete digital workflow is presented. A 39-year-old male patient presented for restoration of missing teeth in the posterior maxilla and mandible. In a single-tooth narrow gap (region 15), a Straumann NNC implant was placed by computer-assisted planning and navigation...
2016: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/27956591/novel-molecular-spectroscopic-multimethod-approach-for-monitoring-water-absorption-desorption-kinetics-of-cad-cam-poly-methyl-methacrylate-prosthodontics
#11
Verena Wiedemair, Sophia Mayr, Daniel S Wimmer, Eva Maria Köck, Simon Penner, Andreas Kerstan, Patricia-Anca Steinmassl, Herbert Dumfahrt, Christian W Huck
Water absorbed to poly(methyl methacrylate) (PMMA)-based CAD/CAM (computer-assisted design/computer-assisted manufacturing) prosthodontics can alter their properties including hardness and stability. In the present contribution, water absorption and desorption kinetics under defined experimental conditions were monitored employing several supplementary and advanced Fourier transform infrared (FT-IR) spectroscopic techniques in combination with multivariate analysis (MVA). In this synergistic vibrational spectroscopic multimethod approach, first a novel near-infrared (NIR) diffuse fiber optic probe reflection spectroscopic method was established for time-resolved analysis of water uptake within seven days under controlled conditions...
December 12, 2016: Applied Spectroscopy
https://www.readbyqxmd.com/read/27836143/facially-generated-and-cephalometric-guided-3d-digital-design-for-complete-mouth-implant-rehabilitation-a-clinical-report
#12
Christian Coachman, Marcelo Alexandre Calamita, Francis Gray Coachman, Robert Gray Coachman, Newton Sesma
Harmony among the teeth, lips, and facial components is the goal of prosthodontic treatment, whether performed by conventional or digital workflow methods. This clinical report describes a facial approach to planning computer-guided surgery and immediate computer-aided designed and computer-aided manufactured (CAD-CAM) interim complete-arch fixed dental prostheses on immediately placed dental implants with a digital workflow. A single clinical appointment for data collection included dentofacial documentation with photographs and videos...
May 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27677215/retentive-strength-of-implant-supported-cad-cam-lithium-disilicate-crowns-on-zirconia-custom-abutments-using-6%C3%A2-different-cements
#13
Krysta Sellers, John M Powers, Sudarat Kiat-Amnuay
STATEMENT OF PROBLEM: The optimal retention of implant-supported ceramic crowns on zirconia abutments is a goal of prosthodontic treatment. PURPOSE: The purpose of this in vitro study was to evaluate the retentive strength of implant-supported IPS e.max CAD-CAM (e.max) crowns bonded to custom zirconia implant abutments with different cements. MATERIAL AND METHODS: An optical scan of a zirconia custom abutment and a complete-coverage modified crown was designed using an intraoral E4D scanner...
February 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27479339/parallel-randomized-controlled-clinical-trial-in-patients-with-temporomandibular-disorders-treated-with-a-cad-cam-versus-a-conventional-stabilization-splint
#14
RANDOMIZED CONTROLLED TRIAL
Jean Marc Pho Duc, Sandra Vargas Hüning, Márcio Lima Grossi
PURPOSE: This parallel randomized controlled trial (RCT) compared the efficacy of a computer-aided design/computer-assisted manufacture (CAD/CAM) splint versus a conventional stabilization splint in patients with temporomandibular disorders (TMD). MATERIALS AND METHODS: A sample of 48 age-matched TMD patients from the Ludwig Maximilian University Prosthodontic Department in Munich, Germany, were randomly allocated into groups 1 (CAD/CAM splint) and 2 (conventional splint)...
July 2016: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/27478442/a-new-total-digital-smile-planning-technique-3d-dsp-to-fabricate-cad-cam-mockups-for-esthetic-crowns-and-veneers
#15
F Cattoni, F Mastrangelo, E F Gherlone, G Gastaldi
Purpose. Recently, the request of patients is changed in terms of not only esthetic but also previsualization therapy planning. The aim of this study is to evaluate a new 3D-CAD-CAM digital planning technique that uses a total digital smile process. Materials and Methods. Study participants included 28 adult dental patients, aged 19 to 53 years, with no oral, periodontal, or systemic diseases. For each patient, 3 intra- and extraoral pictures and intraoral digital impressions were taken. The digital images improved from the 2D Digital Smile System software and the scanner stereolithographic (STL) file was matched into the 3D-Digital Smile System to obtain a virtual previsualization of teeth and smile design...
2016: International Journal of Dentistry
https://www.readbyqxmd.com/read/27402299/biocompatibility-of-polymer-infiltrated-ceramic-network-picn-materials-with-human-gingival-fibroblasts-hgfs
#16
Charlotte Grenade, Marie-Claire De Pauw-Gillet, Patrick Gailly, Alain Vanheusden, Amélie Mainjot
OBJECTIVES: Polymer-infiltrated-ceramic-network (PICN) materials constitute an innovative class of CAD-CAM materials offering promising perspectives in prosthodontics, but no data are available in the literature regarding their biological properties. The objective of the present study was to evaluate the in vitro biocompatibility of PICNs with human gingival fibroblasts (HGFs) in comparison with materials typically used for implant prostheses and abutments. METHODS: HGF attachment, proliferation and spreading on discs made of PICN, grade V titanium (Ti), yttrium zirconia (Zi), lithium disilicate glass-ceramic (eM) and polytetrafluoroethylene (negative control), were evaluated using a specific insert-based culture system (IBS-R)...
September 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27312653/cerec-chairside-system-to-register-and-design-the-occlusion-in-restorative-dentistry-a-systematic-literature-review
#17
REVIEW
Lauren Oliveira Lima Bohner, Pedro Tortamano Neto, Ahad Shahid Ahmed, Matsuyoshi Mori, Dalva Cruz Laganá, Newton Sesma
OBJECTIVE: The aim of this review was to update the literature with regard to the digital methods available by CEREC Chairside system to register and design the occlusion, to report their efficacy and technical innovations in the field of Restorative Dentistry. A search strategy was performed using the key-words: "virtual articulator," or "CAD-CAM and occlusal recording," or "CAD-CAM and occlusion register," or "CAD-CAM and occlusal contacts," or "CAD-CAM and prosthesis." MATERIAL AND METHODS: Inclusion criteria comprised studies evaluating the use of digital methods available by CEREC System for occlusal registration and design during prosthodontics treatment...
July 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27160780/clinical-performance-of-cad-cam-fabricated-complete-dentures-a-cross-sectional-study
#18
Paola C Saponaro, Burak Yilmaz, Reza H Heshmati, Edwin A McGlumphy
STATEMENT OF PROBLEM: Computer-aided design and computer-aided manufacture (CAD-CAM)-fabricated complete dentures (CD) seek to address the disadvantages associated with conventional CD fabrication. However, few if any randomized clinical trials, cross-sectional, and/or retrospective analyses are available for the clinical performance of CAD-CAM-fabricated CDs. PURPOSE: The purpose of this retrospective study was to evaluate clinician experience with digital CD fabrication attempted in a 2-visit protocol...
September 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27008841/a-combination-of-various-technologies-in-the-fabrication-of-a-removable-partial-denture-a-case-study
#19
Stefanie Seitz, Nicholas Cox, John D Jones, Richard Zimmermann
Digital dentistry is increasing prevalent throughout general dental practice. Scanned impression systems, CAD/CAM software, milling units, and 3D printers are becoming used with regularity by some private practitioners. This case report describes a combination of multiple technologies including intraoral scanning, 3D printing, and traditional impression and processing techniques used for fabricating a removable partial denture. The patient indicated that he was highly satisfied throughout the course of treatment and especially with the final result...
January 2016: Texas Dental Journal
https://www.readbyqxmd.com/read/26774319/integrating-conventional-and-cad-cam-digital-techniques-for-establishing-canine-protected-articulation-a-clinical-report
#20
Tarek El Kerdani, Arthur Nimmo
Canine protected articulation is widely accepted for patients requiring extensive oral rehabilitation. Computer-aided design and computer-aided manufacturing (CAD/CAM) restorations have been primarily designed in occlusion at the maximum intercuspal position. Designing a virtual articulator that is capable of accepting excursive occlusal records and duplicating the mandibular movements is a challenge for CAD/CAM technology. Modifying tooth shape using composite resin trial restorations to produce esthetic results and later scanning the modified teeth to create milled crowns is becoming a popular use of the CAD/CAM technology...
May 2016: Journal of Prosthetic Dentistry
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