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Laminate veneer

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https://www.readbyqxmd.com/read/28884029/a-step-by-step-conservative-approach-for-cad-cam-laminate-veneers
#1
Gerardo Durán Ojeda, Ismael Henríquez Gutiérrez, Álvaro Guzmán Marusic, Abelardo Báez Rosales, José Pablo Tisi Lanchares
The use of CAD/CAM technology has allowed the fabrication of ceramic restorations efficiently and with predictable results. Lithium disilicate is a type of glass ceramic material that can be used for the elaboration of laminate veneers, being monolithic restorations which require characterization through a covering ceramic in order to achieve acceptable esthetic results. The next case report shows a predictable clinical protocol for the rehabilitation of the anterior teeth through the preparation of CAD/CAM veneers (e...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28839415/cervical-and-incisal-marginal-discrepancy-in-ceramic-laminate-veneering-materials-a-sem-analysis
#2
Hemalatha Ranganathan, Dhanraj M Ganapathy, Ashish R Jain
CONTEXT: Marginal discrepancy influenced by the choice of processing material used for the ceramic laminate veneers needs to be explored further for better clinical application. AIMS: This study aimed to evaluate the amount of cervical and incisal marginal discrepancy associated with different ceramic laminate veneering materials. SETTINGS AND DESIGN: This was an experimental, single-blinded, in vitro trial. SUBJECTS AND METHODS: Ten central incisors were prepared for laminate veneers with 2 mm uniform reduction and heavy chamfer finish line...
April 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28829937/using-cad-cam-modified-correlation-mode-to-produce-laminate-veneers-a-six-month-case-report
#3
Fsf de Siqueira, Afm Cardenas, Y L Gruber, C Kose, Y M Pupo, G M Gomes, Omm Gomes, J C Gomes
The expectation of an esthetically harmonious smile increases the level of difficulty when treating patients. Laminate veneers stand out as a treatment option for cosmetic rehabilitation in clinical practice, as they are a more conservative procedure and mimic dental structures. These laminate veneers are generally made with different techniques; the most common requires an impression of the prepared tooth, an impression antagonist, fabrication models, and extensive laboratory time. The computer-aided design/computer-aided manufacturing (CAD/CAM) system optimizes the fabrication of prosthetic structures, reducing chairside time and promoting good esthetic results...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28772684/3d-molding-of-veneers-by-mechanical-and-pneumatic-methods
#4
Milan Gaff, Miroslav Gašparík
This paper deals with the influence of selected methods (mechanical and pneumatic) as well as various factors (wood species, moisture content, veneer shape, punch diameter, laminating foil thickness, holding method, plasticizing) on 3D molding of veneers. 3D molding was evaluated on the basis of maximum deflection of birch and beech veneers. Cracks and warping edges were also evaluated in selected groups of mechanical molding. Mechanical methods tested veneers with various treatments (steaming, water and ammonia plasticizing and lamination)...
March 22, 2017: Materials
https://www.readbyqxmd.com/read/28768230/thermal-stress-analysis-of-ceramic-laminate-veneer-restorations-with-different-incisal-preparations-using-micro-computed-tomography-based-3d-finite-element-models
#5
Alper Tunga Celebi, Esra Icer, Meltem Mert Eren, Cengiz Baykasoglu, Ata Mugan, Esra Yildiz
Main objective of this study is to investigate the thermal behavior of ceramic laminate veneer restorations of the maxillary central incisor with different incisal preparations such as butt joint and palatinal chamfer using finite element method. In addition, it is also aimed to understand the effect of different thermal loads which simulates hot and cold liquid imbibing in the mouth. Three-dimensional solid models of the sound tooth and prepared veneer restorations were obtained using micro-computed tomography images...
July 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28653048/porcelain-veneer-post-bonding-crack-repair-by-resin-infiltration
#6
Marco Gresnigt, Michel Magne, Pascal Magne
Ceramic laminate veneer restorations are indicated in several clinical situations. Indirect restorations are usually chosen if the less-invasive options - bleaching, resin infiltration, or composite resin restorations - are not possible, or when it is too difficult to achieve an esthetically pleasing result in the long term. Bonded indirect partial restorations are highly dependent on their adhesive interface, as these thin restorations have a relatively low cohesive strength. Therefore, preservation of sound enamel, conditioning of the restorations and of the substrate, and luting procedures are of paramount importance for a successful outcome...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28637992/ten-year-clinical-observation-of-a-porcelain-laminate-veneer-seated-with-biological-tissue-adaptation-bta-technique
#7
Kenji Tsubota
This clinical report describes the use of biological tissue adaptation technique for placement of a porcelain laminate veneer in a 50-year-old woman. The author developed this prosthetic technique to facilitate alignment of gingival levels for esthetic purposes. The laminate veneer was seated on the maxillary central incisor with an adhesive system. Although the margin of the restoration overhangs, no gingival inflammation or recession has been observed during a follow-up period of 10 years and 9 months.
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28571263/the-effect-of-accelerated-aging-on-the-colour-stability-of-composite-resin-luting-cements-using-different-bonding-techniques
#8
Satheesh B Haralur, Mohammed Alfaifi, Abdulmajeed Almuaddi, Mazen Al-Yazeedi, Abdulmajeed Al-Ahmari
INTRODUCTION: The main criterion of successful aesthetic restoration is to match the colour of the adjacent teeth. Porcelain laminate veneer is widely practiced indirect restoration in the contemporary aesthetic dentistry. The underlying luting cement colour influences the final outcome of the thin, translucent veneer shade. Hence, colour stability of luting cement is important criteria during their selection. AIM: The objective of the study was to assess the colour stability of the different dentin bonding techniques in composite resin luting cements...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28552290/color-match-of-a-feldspathic-ceramic-cad-cam-material-for-ultrathin-laminate-veneers-as-a-function-of-substrate-shade-restoration-color-and-thickness
#9
Taylan Sarı, Çağrı Ural, Emir Yüzbaşıoğlu, İbrahim Duran, Seda Cengiz, İdris Kavut
STATEMENT OF PROBLEM: The final color of a ceramic restoration, especially an ultrathin veneer, is important, but selecting the correct shade is difficult because the substrate can affect the final color of the restoration. PURPOSE: The purpose of this in vitro study was to investigate the effect of substrate shade and thickness on the final color of ultrathin laminate veneers milled from feldspathic ceramic and to present a simple methodology with which a clinician can visualize the effects of substrate color, ceramic thickness, and prefabricated computer-aided design and computer-aided manufacturing (CAD-CAM) block color on the final color of the restoration...
May 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28459245/does-post-etching-cleaning-influence-bond-strength-of-lithium-disilicate-laminate-veneers
#10
Ana Paula Rodrigues Magalhães, Rafael Almeida Decurcio, Gerardo Patricio Durán Ojeda, Terence Romano Teixeira, Paula de Carvalho Cardoso
This paper aims to present a clinical case of laminate veneers in lithium disilicate (LD) reinforced ceramic, complemented with scanning electron microscopy and energy dispersive x-ray spectroscopy analysis of this ceramic's surfaces submitted to some of the different post-etching cleaning protocols proposed by literature. Many dentists are applying all-ceramic restorations, especially veneers, with the most applied material being LD, due to its good mechanical properties, esthetics, and ability to adhere to tooth substrate...
May 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28385431/color-stability-of-ceramic-laminate-veneers-cemented-with-light-polymerizing-and-dual-polymerizing-luting-agent-a-split-mouth-randomized-clinical-trial
#11
Ana Maria Estivalete Marchionatti, Vinícius Felipe Wandscher, Michele Mirian May, Marco Antonio Bottino, Liliana Gressler May
STATEMENT OF PROBLEM: The color stability of luting agents influences the esthetics of ceramic laminate veneers. Clinical studies that have evaluated the color changes of veneers cemented to enamel with light- and dual-polymerizing resin cement are lacking. PURPOSE: The purpose of this split-mouth randomized clinical trial was to evaluate the color change and marginal discoloration of dual- and light-polymerizing cement used for cementation of ceramic laminate veneers...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28280760/the-shear-bond-strength-of-porcelain-laminate-to-prepared-and-unprepared-anterior-teeth
#12
Ali Asghar Alavi, Zeinab Behroozi, Farid Nik Eghbal
STATEMENT OF THE PROBLEM: Porcelain laminate veneer is an esthetic restoration used as an alternative to full veneer crowns and requires minimal tooth preparation. In restoration with porcelain laminate veneers, both the longevity of the laminate and conservation of the sound tooth structure are imperative. PURPOSE: The present study aimed to investigate the shear bond strength of porcelain laminates to prepared- and unprepared- anterior teeth in order to compare their longevity and success rate...
March 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28280757/evaluation-of-the-effect-of-porcelain-laminate-thickness-on-degree-of-conversion-of-light-cure-and-dual-cure-resin-cements-using-ftir
#13
Maryam Hoorizad Ganjkar, Haleh Heshmat, Reza Hassan Ahangari
STATEMENT OF THE PROBLEM: Increasing the thickness of the veneering porcelain may affect the polymerization of resin cements. Incomplete polymerization of resin cements can lead to compromised quality of restoration and decrease the longevity of indirect restorations. PURPOSE: This study sought to assess the effect of IPS Empress porcelain thickness on the degree of conversion of light-cure and dual-cure resin cements using Fourier transform infrared spectroscopy...
March 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28262271/the-impact-of-resin-coating-on-sub-critical-crack-extension-in-a-porcelain-laminate-veneer-material
#14
Xu Cao, Garry J P Fleming, Owen Addison
OBJECTIVES: Characterisation of the interaction between crack extension, crack stabilisation and stress/strain relaxation in the polymeric matrix, the interplay between stress corrosion cracking and the mechanical response of a resin-based luting adhesive within a surface defect population could extend PLV restoration longevity by optimising cementation protocols. The aim was to investigate the influence of stress corrosion cracking and the viscoelastic behaviour of a resin-based luting adhesive independently by controlling the environmental conditions operative during test specimen fabrication...
March 2, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28258266/effect-of-newly-developed-resin-cements-and-thermocycling-on-the-strength-of-porcelain-laminate-veneers
#15
Fawaz I Alqahtani
AIM: The aim of this study was to determine the effect of different luting cements and accelerated artificial aging (AAA) in the fracture resistance of porcelain laminate veneers (PLVs). MATERIALS AND METHODS: A total of 80 disc-shaped specimens were prepared using computer-aided design/computer-aided milling technology from lithium disilicate glass-ceramic blocks. Specimens (0.5 mm thick, 10 mm diameter) were divided into eight groups of 10 specimens per group...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28117855/marginal-sealing-of-a-porcelain-%C3%A2-laminate-veneer-luted-with-%C3%A2-three-different-resin-cements-%C3%A2-on-fluorosed-teeth
#16
Fereshteh Shafiei, Mahtab Memarpour, Zahra Jowkar
AIM: The purpose of this study was to investigate the sealing ability of three different resin cements for the luting of a porcelain laminate veneer (PLV) to the enamel and dentin of fluorosed teeth. MATERIALS AND METHOD: Thirty incisors with moderate fluorosis according to the Thylstrup-Fejerskov Index (TFI = 4 to 6) received a veneer preparation with dentin margins at the gingival third. The IPS Empress (Ivoclar Vivadent) veneers were luted to the teeth of three groups (n = 10) using three different resin cements: Group 1: Excite DSC/Variolink II - etch-and-rinse (E&R), Group 2: ED Primer II/Clearfil Esthetic - self-etch (SE), Group 3: RelyX Unicem - self-adhesive (SA)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28117854/effectiveness-of-optical-illusions-%C3%A2-applied-on-a-single-composite-resin-veneer-for-the-diastema-closure-%C3%A2-of-maxillary-central-incisors
#17
Thomai Katsarou, Maria Antoniadou, Efstratios Papazoglou
OBJECTIVE: To assess the esthetic effectiveness of four illusion techniques applied to a composite resin veneer for diastema closure between maxillary central incisors. MATERIALS AND METHODS: An acrylic model with six natural maxillary anterior teeth was fabricated with a 2-mm diastema between the central incisors. Resin veneers were constructed on the left central incisor and the following cases were derived: V0: no veneer; V1: veneer without optical illusion features; V2: veneer with centralized interproximal ridges; V3: veneer with curved incisal edges; V4: veneer with gray pigment mesially/distally; V5: veneer with gray pigment on the developmental lobes...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/27965493/new-single-bottle-ceramic-primer-6-month-case-report-and-laboratory-performance
#18
Fabiana Sf Siqueira, Rodrigo S Alessi, Andres Fm Cardenas, Carlos Kose, Shelon C Souza Pinto, Matheus C Bandeca, Alessandro D Loguercio, João C Gomes
INTRODUCTION: This article presents a 6-month case report and an in vitro evaluation of the performance of the new self-etching glass-ceramic monobond etch and prime (MEP) when applied in a lithium disilicate (LD). The MEP contains in the same bottle, along with acid conditioner and silanes. This simplifies the bonding procedures by reducing not only the number of steps, but also the working time. A 42-year-old female patient sought for esthetic treatment, and the main complaint was the darkened appearance of the upper lateral incisor...
December 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27700128/how-to-bond-zirconia-the-apc-concept
#19
Markus B Blatz, Marcela Alvarez, Kimiyo Sawyer, Marco Brindis
Zirconia has become one of the most popular materials in dentistry. New high-translucent zirconia ceramics have favorable optical properties and can be applied as monolithic full-contour restorations in various clinical indications for posterior and anterior teeth. However, having reliable cementation protocols is fundamental for clinical success of indirect ceramic dental restorations, including those made from zirconia materials. Resin bonding supports ceramic restorations and is necessary for onlays, laminate veneers, and resinbonded fixed dental prostheses...
October 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27689840/water-sorption-and-solubility-of-luting-agents-used-under-ceramic-laminates-with-different-degrees-of-translucency
#20
C L Leal, Apv Queiroz, R M Foxton, S Argolo, P Mathias, A N Cavalcanti
PURPOSE: The aim of this study was to evaluate the effect of low-thickness ceramic laminate translucency on water sorption and solubility in resin luting agents. METHODS AND MATERIALS: Ceramic slides (15×0.7 mm) were generated using lithium disilicate (IPS e.max Press, Ivoclar-Vivadent, Schaan, Liechtenstein) that were A1 in color and had decreasing degrees of translucency (high, medium, and low). A slide of transparent glass of similar size was used as the control...
September 2016: Operative Dentistry
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