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https://www.readbyqxmd.com/read/28798460/cerec-an-open-complete-cad-cam-system-with-smart-software
#1
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No abstract text is available yet for this article.
August 11, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28733810/precision-of-guided-scanning-procedures-for-full-arch-digital-impressions-in-vivo
#2
Moritz Zimmermann, Christina Koller, Moritz Rumetsch, Andreas Ender, Albert Mehl
PURPOSE: System-specific scanning strategies have been shown to influence the accuracy of full-arch digital impressions. Special guided scanning procedures have been implemented for specific intraoral scanning systems with special regard to the digital orthodontic workflow. The aim of this study was to evaluate the precision of guided scanning procedures compared to conventional impression techniques in vivo. METHOD: Two intraoral scanning systems with implemented full-arch guided scanning procedures (Cerec Omnicam Ortho; Ormco Lythos) were included along with one conventional impression technique with irreversible hydrocolloid material (alginate)...
July 21, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28689915/a-3-year-clinical-evaluation-of-endodontically-treated-posterior-teeth-restored-with-two-different-materials-using-the-cerec-ac-chair-side-system
#3
Ting Lu, Ling Peng, Fu Xiong, Xiao-Yu Lin, Ping Zhang, Zhi-Ting Lin, Bu-Ling Wu
STATEMENT OF PROBLEM: The introduction of polymer-infiltrated ceramic network (PICN) materials may provide more options for dentists in restoring short clinical crowns and extensively damaged posterior teeth, but clinical data for their performance are lacking. PURPOSE: The purpose of this clinical study was to compare the 3-year performance and survival rates of PICN material with those of conservative ceramic onlay restorations for endodontically treated posterior teeth using the CEREC AC chair-side system...
July 7, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28689912/influence-of-scanner-powder-application-and-adjustments-on-cad-cam-crown-misfit
#4
Marcel S Prudente, Letícia R Davi, Kemilly O Nabbout, Célio J Prado, Leandro M Pereira, Karla Zancopé, Flávio D Neves
STATEMENT OF PROBLEM: The manufacturers of computer-aided design and computer-aided manufacturing (CAD-CAM) systems emphasize that new technologies can improve the marginal fit of dental crowns. However, data supporting this claim are limited. PURPOSE: The purpose of this in vitro study was to investigate the differences among the following fabrication methods on the marginal discrepancy of dental crowns: intraoral optical scanners, powder application, and adjustments of intaglio surface...
July 7, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28682548/-polishing-performance-of-different-polishing-tools-for-cerec-blocs-ceramic
#5
Wang Tao, Guo Zhenwei, Guo Huijing, Qiao Xianghe
OBJECTIVE: This study aimed to compare the polishing performance of five different glass-ceramic polishing tools on CEREC Blocs ceramic and provide evidence for clinical polishing tool selection. METHODS: Sixty ceramic specimens were prepared and divided into six groups (n=10). These specimens received different surface treatments, including glazing (group G), polishing with Shofu polishing set, that is, Porcelain Adjustment Kit+CeraMaster (group SF), 3M Sof-LexTM Discs (group 3M), TobooM polishing set (group Tob), EVE DIAPRO system (group EVE), and Ivoclar Vivadent OptraFine® system (group Ivo)...
April 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28642921/fracture-behavior-of-single-structure-fiber-reinforced-composite-restorations
#6
Kohji Nagata, Sufyan K Garoushi, Pekka K Vallittu, Noriyuki Wakabayashi, Hidekazu Takahashi, Lippo V J Lassila
Objective: The applications of single-structure fiber-reinforced composite (FRC) in restorative dentistry have not been well reported. This study aimed to clarify the static mechanical properties of anterior crown restorations prepared using two types of single-structure FRC. Materials and methods: An experimental crown restoration was designed for an upper anterior incisor. The restorations were made from IPS Empress CAD for CEREC (Emp), IPS e.max(®) CAD (eMx), experimental single-structure all-FRC (a-FRC), Filtek™ Supreme XTE (XTE), and commercially available single-structure short-FRC (everX Posterior™) (n = 8 for each material) (s-FRC)...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28630955/chairside-systems-a-current-review
#7
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/28590094/optical-properties-and-failure-load-of-thin-cad-cam-ceramic-veneers
#8
Henriika Maunula, Jenni Hjerppe, Lippo L V Lassila, Timo O Närhi
This study aimed to compare optical properties and failure load of leucite (IPS Empress CAD LT) and lithium disilicate glass ceramic (IPS e.max CAD LT) materials in incisor veneers. Four groups of veneers were made on 36 bovine incisors with Cerec 3D milling unit (n=9/group): 0.5 and 0.3 mm thick leucite glass and 0.5 and 0.3 mm lithium disilicate glass veneers. The optical features were measured with CM-700d spectrophotometer using white and yellow try-in pastes. Differences were determined by means of ΔE value and luminance...
June 2017: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28569452/zirconia-reinforced-lithium-silicate-ceramic-a-2-year-follow-up-of-a-clinical-experience-with-anterior-crowns
#9
Guilherme de Siqueira Ferreira Anzaloni Saavedra, Flávia Pires Rodrigues, Marco Antonio Bottino
The aim of this manuscript is to describe 2-year follow-up of a clinical experience with a zirconia-reinforced lithium silicate ceramic for an anterior rehabilitation with single metal-free crowns. The maxillary-central incisor teeth crowns were made by zirconium-reinforced lithium silicate and covered with porcelain were obtained with a digital impression with the intra-oral scanner of the CEREC system as a basis for virtual design, as well as a laminate for the left lateral maxillary incisor, based on a "double scanning" technique...
March 2017: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28552287/mechanical-properties-and-internal-fit-of-4-cad-cam-block-materials
#10
Alexis Goujat, Hazem Abouelleil, Pierre Colon, Christophe Jeannin, Nelly Pradelle, Dominique Seux, Brigitte Grosgogeat
STATEMENT OF PROBLEM: Recent polymer-based computer-assisted design and computer-assisted manufacturing (CAD-CAM) materials have been commercialized for inlay restorations, a polymer-infiltrated ceramic-network (PICN) and composite resin nanoceramics. Little independent evidence regarding their mechanical properties exists. Internal adaptation is an important factor for the clinical success and longevity of a restoration, and data concerning this parameter for inlays made with these blocks are scarce...
May 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28527193/comparison-of-digital-intraoral-scanners-by-single-image-capture-system-and-full-color-movie-system
#11
Meguru Yamamoto, Yu Kataoka, Atsufumi Manabe
BACKGROUND: The use of dental computer-aided design/computer-aided manufacturing (CAD/CAM) restoration is rapidly increasing. OBJECTIVE: This study was performed to evaluate the marginal and internal cement thickness and the adhesive gap of internal cavities comprising CAD/CAM materials using two digital impression acquisition methods and micro-computed tomography. METHODS: Images obtained by a single-image acquisition system (Bluecam Ver...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28514042/effect-of-crystallization-firing-on-marginal-gap-of-cad-cam-fabricated-lithium-disilicate-crowns
#12
Steven A Gold, Jack L Ferracane, Juliana da Costa
PURPOSE: To evaluate the marginal gaps of CAD/CAM (CEREC 3) produced crowns made from leucite-reinforced glass-ceramic (IPS Empress CAD) blocks (LG), and lithium-disilicate (IPS e.max CAD) blocks before (LD-B), and after (LD-A) crystallization firing. MATERIALS AND METHODS: A human molar tooth (#19) was mounted with adjacent teeth on a typodont and prepared for a full-coverage ceramic crown. The typodont was assembled in the mannequin head to simulate clinical conditions...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28443832/protective-buffering-capacity-of-restorative-dental-materials-in-vitro
#13
Markus Fuss, Michael J Wicht, Thomas Attin, Sonja H M Derman, Michael J Noack
PURPOSE: To investigate the buffering capacity of restorative materials during a simulated carious and intrinsic erosive attack. MATERIALS AND METHODS: Cavities with a volume of 130 μl were milled (Cerec MC XL) out of blocks of Ceram X Mono (CM), Quixfil (QX), Filtek Supreme (FS), Apa Fill 3 (AF), an experimental dual-curing composite containing a bioactive glass (EX), Dyract eXtra (DY), Beautifil (BE), Equia Fil (EQ), Telio CAD (TL) (negative control), TheraCal (TC; positive control), and extracted teeth (ED)...
April 25, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28424734/influence-of-teeth-preparation-finishing-on-the-adaptation-of-lithium-disilicate-crowns
#14
Bruna Salamoni Sinhori, Mauro Amaral Caldeira de Andrada, Guilherme Carpena Lopes, Sylvio Monteiro Junior, Luiz Narciso Baratieri
The polishing step of teeth preparations for crowns is a step often performed, so that there is an increased time during the clinical procedure. The aim of this study is to evaluate the marginal and internal adaptation of all-ceramic CAD/CAM lithium disilicate crowns in polished preparations for crown and nonpolished preparations for crowns. For this purpose, 20 first molars were selected, which were divided into two groups (n = 10) G1, teeth that received surface roughening similar to preparation without polishing, and G2 (control), polished preparations...
2017: International Journal of Biomaterials
https://www.readbyqxmd.com/read/28422359/clinical-evaluation-of-indirect-particle-filled-composite-resin-cad-cam-partial-crowns-after-24-months
#15
Moritz Zimmermann, Christina Koller, Marcel Reymus, Albert Mehl, Reinhard Hickel
PURPOSE: Resin-based CAD/CAM compound materials might be promising for single-tooth restorations. Insufficient clinical data are available for this new material class. The purpose of this study was to describe initial clinical in vivo results for indirect particle-filled composite resin CAD/CAM restorations after 24 months. MATERIALS AND METHODS: Indirect particle-filled composite resin restorations were fabricated with a CAD/CAM method (CEREC Bluecam intraoral scanner, CEREC MCXL milling unit) by calibrated dental students...
April 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28402732/different-methods-for-inlay-production-effect-on-internal-and-marginal-adaptation-adjustment-time-and-contact-point
#16
M P Rippe, C Monaco, L Volpe, M A Bottino, R Scotti, L F Valandro
The aim of this study was to evaluate the effect of different production methods of resin and ceramic inlays on marginal and internal adaptation, adjustment time, and proximal contacts. Forty premolars were selected, embedded (their roots), and prepared to receive inlays that were made as follows (n=10): LaRe-digital impression with a Lava C.O.S. scanner, followed by milling of Lava Ultimate block (composite resin) in a milling center; CeRe-digital impression with a Cerec 3D Bluecam scanner, followed by milling of Lava Ultimate block in Cerec; CeDis-digital impression with a Cerec 3D Bluecam scanner, followed by milling of IPS e...
July 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28385434/computer-aided-analysis-of-digital-dental-impressions-obtained-from-intraoral-and-extraoral-scanners
#17
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/28352204/marginal-fit-of-all-ceramic-crowns-fabricated-using-two-extraoral-cad-cam-systems-in-comparison-with-the-conventional-technique
#18
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/28302948/the-accuracy-of-the-cad-system-using-intraoral-and-extraoral-scanners-for-designing-of-fixed-dental-prostheses
#19
Sakura Shimizu, Akikazu Shinya, Soichi Kuroda, Harunori Gomi
The accuracy of prostheses affects clinical success and is, in turn, affected by the accuracy of the scanner and CAD programs. Thus, their accuracy is important. The first aim of this study was to evaluate the accuracy of an intraoral scanner with active triangulation (Cerec Omnicam), an intraoral scanner with a confocal laser (3Shape Trios), and an extraoral scanner with active triangulation (D810). The second aim of this study was to compare the accuracy of the digital crowns designed with two different scanner/CAD combinations...
July 26, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28072987/-a-pilot-clinical-study-of-immediate-provisionalization-with-a-chairside-computer-aided-design-and-computer-aided-manufacture-monolithic-crown-for-single-tooth-immediate-implant-placement
#20
J H Tian, P Di, Y Lin, Y Zhang, D H Wei, H Y Cui
Objective: To evaluate the primary clinical outcomes of immediate provisionalization with a monolithic crown utilizing a novel chairside computer aided design and computer aided manufacture (CAD/CAM) workflow for single tooth immediate implant placement. Methods: This pilot study was a prospective within-subjects design. Thirteen consecutive patients were included and diagnosed with untreatable single incisor or premolar with fine general and local anatomical conditions. The trial was conducted at Department of Implantology, Peking University School and Hospital of Stomatology, Beijing, between January 2016 and June 2016...
January 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
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