keyword
MENU ▼
Read by QxMD icon Read
search

Cerec

keyword
https://www.readbyqxmd.com/read/29214376/polymer-infiltrated-ceramic-cad-cam-inlays-and-partial-coverage-restorations-3-year-results-of-a-prospective-clinical-study-over-5-years
#1
F A Spitznagel, K J Scholz, J R Strub, K Vach, P C Gierthmuehlen
OBJECTIVE: The aim of this prospective clinical 5-year study was to evaluate the long-term behavior of monolithic computer-aided design and computer-aided manufacturing (CAD/CAM)-fabricated minimally invasive polymer-infiltrated ceramic network (PICN) inlays and partial coverage restorations (PCR). MATERIAL AND METHODS: Posterior teeth of 47 patients were restored with 103 restorations (45 inlays, 58 PCRs). After defect-oriented preparations, monolithic PICN restorations of VITA Enamic were fabricated with a CAD/CAM system (inEoS blue/CEREC inLab MCXL) and adhesively bonded (Variolink II)...
December 6, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29192293/digital-evaluation-of-the-fit-of-zirconia-reinforced-lithium-silicate-crowns-with-a-new-three-dimensional-approach
#2
Moritz Zimmermann, Andre Valcanaia, Gisele Neiva, Albert Mehl, Dennis Fasbinder
OBJECTIVE: Several methods for the evaluation of fit of computer-aided design/computer-assisted manufacture (CAD/CAM)-fabricated restorations have been described. In the study, digital models were recorded with an intraoral scanning device and were measured using a new three-dimensional (3D) computer technique to evaluate restoration internal fit. The aim of the study was to evaluate the internal adaptation and fit of chairside CAD/CAM-fabricated zirconia-reinforced lithium silicate ceramic crowns fabricated with different post-milling protocols...
November 30, 2017: Quintessence International
https://www.readbyqxmd.com/read/29160904/three-dimensional-accuracy-of-digital-static-interocclusal-registration-by-three-intraoral-scanner-systems
#3
Kuan Yee Wong, Roxanna Jean Esguerra, Vanessa Ai Ping Chia, Ying Han Tan, Keson Beng Choon Tan
PURPOSE: Prior studies have defined the accuracy of intraoral scanner (IOS) systems but the accuracy of the digital static interocclusal registration function of these systems has not been reported. This study compared the three-dimensional (3D) accuracy of the digital static interocclusal registration of 3 IOS systems using the buccal bite scan function. MATERIALS AND METHODS: Three IOS systems compared were 3MTM True Definition Scanner (TDS), TRIOS Color (TRC), and CEREC AC with CEREC Omnicam (CER)...
November 21, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29143397/marginal-fit-comparison-of-cad-cam-crowns-milled-from-two-different-materials
#4
Atousa Azarbal, Mohsen Azarbal, Robert L Engelmeier, Thomas C Kunkel
PURPOSE: To evaluate the marginal fit of CAD/CAM copings milled from hybrid ceramic (Vita Enamic) blocks and lithium disilicate (IPS e.max CAD) blocks, and to evaluate the effect of crystallization firing on the marginal fit of lithium disilicate copings. MATERIALS AND METHODS: A standardized metal die with a 1-mm-wide shoulder finish line was imaged using the CEREC AC Bluecam. The coping was designed using CEREC 3 software. The design was used to fabricate 15 lithium disilicate and 15 hybrid ceramic copings...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28891600/the-effect-of-milling-and-postmilling-procedures-on-the-surface-roughness-of-cad-cam-materials
#5
Eduardo Gonçalves Mota, Laura Nunes Smidt, Lisiane Martins Fracasso, Luiz Henrique Burnett, Ana Maria Spohr
PURPOSE: The aim of this study was to evaluate the surface roughness and analyze the surface topography of five different CAD/CAM ceramics and one CAD/CAM composite resin for CEREC after milling and postmilling procedures. MATERIALS AND METHODS: Blocks of the ceramics Mark II, IPS Empress CAD, IPS e.max CAD, Suprinity and Enamic, and blocks of the composite resin Lava Ultimate were milled at CEREC MCXL. Ten flat samples of each material were obtained. The surface roughness (Ra) test was performed before and after milling, crystallization, polishing, and glaze when indicated, followed by SEM and AFM analysis...
September 11, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28874991/ceramic-molar-crown-reproducibility-by-digital-workflow-manufacturing-an-in-vitro-study
#6
Ii-Do Jeong, Woong-Chul Kim, Jinyoung Park, Chong-Myeong Kim, Ji-Hwan Kim
PURPOSE: This in vitro study aimed to analyze and compare the reproducibility of zirconia and lithium disilicate crowns manufactured by digital workflow. MATERIALS AND METHODS: A typodont model with a prepped upper first molar was set in a phantom head, and a digital impression was obtained with a video intraoral scanner (CEREC Omnicam; Sirona GmbH), from which a single crown was designed and manufactured with CAD/CAM into a zirconia crown and lithium disilicate crown (n=12)...
August 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28852748/up-to-27-years-clinical-long-term-results-of-chairside-cerec-1-cad-cam-inlays-and-onlays
#7
Tobias Otto
The objective of this follow-up study was to examine the performance of Cerec 1 inlays and onlays in terms of clinical quality over a mean functional period of 25 years. Out of 200 Cerec 1 inlays and onlays placed consecutively in 108 patients in a private practice between 1989 and early 1991, 141 restorations could be reevaluated in 65 patients after up to 26 years and 10 months. All ceramic inlays and onlays had been generated chairside using the Cerec 1 method, and had been seated adhesively using bonding composite...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28852745/the-importance-of-the-cement-spacer-for-proper-crown-seating-erratum
#8
Sue Langham, James F Simon, Daranee Tantbirojn, David Redmond
Marginal integrity is important for the longevity of a restoration. An increase in the marginal discrepancy after cementation contributes adversely to the longevity of a restoration. In the past, the preferred method to overcome this discrepancy was to create internal space for the cement by using a number of coats of a die-spacing material. In the digital age, however, this method is no longer the only option. Currently, an amount of die spacer is engineered into the computer program and forms part of the milling process...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28835598/influence-of-material-thickness-on-fractural-strength-of-cad-cam-fabricated-ceramic-crowns
#9
Moritz Zimmermann, Gustav Egli, Markus Zaruba, Albert Mehl
The fracture behavior of CAD/CAM fabricated crowns was investigated as a function of material thickness for six silicate ceramic materials: Mark II, e.max CAD, Celtra Duo milled, Celtra Duo fired, Suprinity, Enamic. Crowns with thicknesses 0.5/1.0/1.5 mm were fabricated with CEREC and adhesively seated to dies fabricated with stereolithography technology (n=144). Thermomechanical loading and fractural loading was performed. Statistical analysis was done with one-way ANOVA and post-hoc Scheffé test. For 1.5 mm, all crowns survived fatigue testing, for 1...
August 24, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28828157/methodology-in-specimen-fabrication-for-in-vitro-dental-studies-standardization-of-extracted-tooth-preparation
#10
Lucía Fernández-Estevan, Diego Millan-Martínez, Antonio Fons-Font, Rubén Agustín-Panadero, Juan-Luis Román-Rodríguez
BACKGROUND: Specimen preparation for in vitro study suffers a general lack of methodological homogeneity, as well as a lack of uniformity in the materials selected for fabricating them. This situation prevents comparisons between studies. When a specimen is not of dental origin it is not possible to study adhesion or bonding techniques realistically. The objective is to design and implement a method of specimen preparation that permits universal standardization for use in in vitro studies...
July 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28798460/cerec-an-open-complete-cad-cam-system-with-smart-software
#11
(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/28733810/precision-of-guided-scanning-procedures-for-full-arch-digital-impressions-in-vivo
#12
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)...
November 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
#13
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
#14
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
#15
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
#16
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
#17
REVIEW
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
#18
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
#19
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
#20
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
keyword
keyword
15699
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"