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Composite veneers

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https://www.readbyqxmd.com/read/29784462/promoting-porcelain-zirconia-bonding-using-different-atmospheric-pressure-gas-plasmas
#1
Yi-Chuan Liu, Jung-Pei Hsieh, Yung-Chung Chen, Li-Li Kang, Chii-Shyang Hwang, Shu-Fen Chuang
OBJECTIVES: To evaluate the effects of different atmospheric-pressure plasma (APP) on the physicochemical properties of yttria-stabilized zirconia, and promoting the adhesion of veneering porcelain. METHODS: Cercon base zirconia disks were prepared to receive different treatments: as-polished, three APPs (oxygen, OP; argon, AP; and CF4 , CP), and grit-blasted (GB). Their surface roughness and hydrophilicity were measured, and surface morphology was examined either after treatments, after simulated porcelain firing, or additional thermal etching...
May 18, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29714706/conservative-approach-for-molar-incisor-hypomineralization-a-case-report-and-7-year-follow-up
#2
Camila Porto Pessôa, Luciana Pion, Alessandra Reyes, Ronilza Matos, Cássio Fornazari Alencar, Tatiane Fernandes Novaes, Mariana Minatel Braga
Molar-incisor hypomineralization (MIH) can result in minor injuries or major structural loss, especially in incisors and molars. Patients with MIH seek dental treatment early, usually in childhood. Choosing the best treatment option during this stage can be a challenge. Because these patients still present a mixed dentition, the use of prosthetic appliances is not usually the best option. This case report with a 7-year follow-up presents an overview of a conservative approach for the restoration of teeth affected by MIH...
May 2018: General Dentistry
https://www.readbyqxmd.com/read/29713430/repair-bond-strength-of-resin-composite-to-bilayer-dental-ceramics
#3
Ayse Seda Ataol, Gulfem Ergun
PURPOSE: The purpose of this study was to investigate the effect of various surface treatments (ST) on the shear bond strength of resin composite to three bilayer dental ceramics made by CAD/CAM and two veneering ceramics. MATERIALS AND METHODS: Three different bilayer dental ceramics and two different veneering ceramics were used (Group A: IPS e.max CAD+IPS e.max Ceram; Group B: IPS e.max ZirCAD+IPS e.max Ceram, Group C: Vita Suprinity+Vita VM11; Group D: IPS e...
April 2018: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29670735/microleakage-of-porcelain-laminate-veneers-cemented-with-different-bonding-techniques
#4
Satheesh B Haralur
Background: Porcelain laminate veneers (PLV) are continued to be popular in modern dental practice due to its high aesthetic outcome and conservative tooth preparation. The composite resins are commonly used as luting agents for cementation of PLV. Polymerisation shrinkage induced marginal gap and interfacial leakage is the persistent limitation with the resin luting cements. The objective of the study was to assess the effect of various dentin bonding techniques on the microleakage after accelerated ageing in porcelain laminate veneres...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29652016/effect-of-inadequate-ferrule-segment-location-on-fracture-resistance-of-endodontically-treated-teeth
#5
Satheesh B Haralur, Ahmed Fatis Alalyani, Mohammad Ali Almutiq, Abdulrahman Ahmed Alfaifi, Amer Abdullah Al-Shehri
Introduction: The circumferential 2 mm ferrule during the fabrication of the crown is strongly advocated for the long-term clinical success. During the routine clinical practice, the dentist encounters the endodontically treated tooth (ETT) with inadequacy of the ferrule in some segment due to caries, abrasion, and erosions. The aim of this in vitro study was to investigate the consequence of inadequate segmental ferrule location on fracture strength of the root canal-treated anterior and posterior teeth...
March 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29628647/evaluation-of-degree-of-conversion-and-the-effect-of-thermal-aging-on-the-color-stability-of-resin-cements-and-flowable-composite
#6
Lúcia Trazzi Prieto, Cíntia Tereza Pimenta de Araújo, Josué Junior Araujo Pierote, Dayane Carvalho Ramos Salles de Oliveira, Erick Kamiya Coppini, Luís Alexandre Maffei Sartini Paulillo
Purpose: The aim of this in vitro study was to evaluate the color stability and degree of conversion (DC) of dual-cure and light-cure cements and flowable composites after thermal aging. Materials and Methods: A total of 50 human incisors were prepared and divided into six groups ( n = 10). Veneers were fabricated using IPS Empress Direct composite resin were bonded with three types of luting agents: Light-cured, conventional dual, and flowable composite according to the manufacturer's instructions...
January 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29593160/fracture-force-for-veneered-materials-on-restorations-measured-by-torsion-testing
#7
Fumihiko Watanabe, Munetsugu Seto, Kazuhiko Ueda, Makoto Ozawa
The torsional fracture strength at the interface between a base plate and veneering material was evaluated for three kinds of veneered restoration: porcelain fused to zirconia (PFZ), porcelain fused to metal (PFM), and composite resin veneered metal (CRVM). The metal and zirconia base plate (30×4×0.4 mm) were prepared and these plates were veneered as test specimens using each material to a total thickness of 1.2 mm. Torsional force was applied to each specimen using a rotational speed of 1.0 deg/min until the veneering material underwent fracture or exfoliation...
March 28, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/29584553/ultrathin-cad-cam-ceramic-occlusal-veneers-and-anterior-bilaminar-veneers-for-the-treatment-of-moderate-dental-biocorrosion-a-1-5-year-follow-up
#8
T H Resende, K R Reis, L H Schlichting, P Magne
Dental biocorrosion can produce a devastating impact on oral health. The restorative phase of the treatment should not cause additional damage of the remaining sound tooth structure. Ultrathin occlusal veneers are a conservative alternative to traditional onlays and complete crowns for the treatment of severe biocorrosive lesions. This strategy is explained in the present case report through a full-mouth rehabilitation of a patient with moderate biocorrosion. Maxillary anterior teeth were restored using the bilaminar technique (lingual direct composite veneers with labial ceramic veneers) and posterior teeth using ultrathin CAD-CAM ceramic occlusal veneers...
March 27, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29519983/the-evaluation-of-stress-patterns-in-porcelain-laminate-veneers-with-different-restoration-designs-and-loading-angles-induced-by-functional-loads-a-three-dimensional-finite-element-analysis-study
#9
O Ustun, A N Ozturk
Background: Fractures in porcelain laminate veneers (PLVs) are a significant clinical problem. Preparation designs can affect stress distribution, which leads to fractures in PLVs. Therefore, identification of the most favorable preparation design in terms of stress distribution is required. Objective: The purpose of this study is to examine the functional stress patterns of PLVs with featheredge, incisal bevel, and overlapped preparation designs under 0°, 60°, and 120° functional loads using finite element analysis...
March 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29487843/management-of-dental-erosion-induced-by-gastro-esophageal-reflux-disorder-with-direct-composite-veneering-aided-by-a-flexible-splint-matrix
#10
Sherin Jose Chockattu, Byathnal Suryakant Deepak, Anubhav Sood, Nandini T Niranjan, Arun Jayasheel, Mallikarjun K Goud
Dental erosion is frequently overlooked in clinical practice. The management of erosion-induced damage to the dentition is often delayed, such that extensive occlusal rehabilitation is required. These cases can be diagnosed by a careful clinical examination and a thorough review of the patient's medical history and/or lifestyle habits. This case report presents the diagnosis, categorization, and management of a case of gastro-esophageal reflux disease-induced palatal erosion of the maxillary teeth. The early management of such cases is of utmost importance to delay or prevent the progression of damage both to the dentition and to occlusal stability...
February 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29484710/an-in-vitro-evaluation-of-fracture-load-of-implant-supported-zirconia-based-prostheses-fabricated-with-different-veneer-materials
#11
Hiroki Takata, Futoshi Komine, Junichi Honda, Markus B Blatz, Hideo Matsumura
OBJECTIVES: The purpose of this in vitro study was to evaluate fracture loads of implant-supported zirconia-based prostheses fabricated with different veneer materials (resin-based material and lithium disilicate ceramics). MATERIAL AND METHODS: Forty-four zirconia-based molar prostheses were fabricated on dental implants and divided into four groups (n = 11): zirconia-based prostheses veneered with feldspathic porcelain (ZVF), zirconia-based prostheses bonded with the lithium disilicate glass-ceramic veneer (ZBD), zirconia-based prostheses veneered with indirect composite resin (ZVC), and zirconia-based prostheses bonded with composite materials fabricated from a CAD/CAM resin block (ZBC)...
April 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29483726/-wear-intensity-and-surface-roughness-of-microhybrid-composite-and-ceramic-occlusal-veneers-on-premolars-after-the-thermocycling-and-cyclic-mechanical-loading-tests
#12
H Y Zhang, T Jiang, M X Cheng, Y W Zhang
OBJECTIVE: To evaluate the wear intensity and surface roughness of occlusal veneers on premolars made of microhybrid composite resin or two kinds of ceramics in vitro after the thermocycling and cyclic mechanical loading tests. METHODS: In the study,24 fresh extracted human premolars without root canal treatment were prepared (cusps reduction of 1.5 mm in thickness to simulate middle to severe tooth wear, the inclinations of cusps were 20°). The prepared teeth were restored with occlusal veneers made of three different materials: microhybrid composite, heat-pressed lithium disilicate ceramic and computer-aided design/computer-aided manufacturing (CAD/CAM) lithium disilicate ceramic in the thickness of 1...
February 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29476584/retrospective-evaluation-of-extended-heat-pressed-ceramic-veneers-after-a-mean-observational-period-of-7-years
#13
Sven Rinke, Anne-Kathrin Pabel, Xenia Schulz, Matthias Rödiger, Gerhard Schmalz, Dirk Ziebolz
OBJECTIVES: Retrospective evaluation of extended anterior glass-ceramic veneers 7 years after placement in a private practice. MATERIALS AND METHODS: A total of 31 patients (20 females/11 males) underwent restoration with adhesively luted extended veneers that were fabricated using heat-pressed glass-ceramic (Cergo, Dentsply Sirona). A single dentist restored 101 teeth (maxilla, n = 65; mandible, n = 36). Adhesive cementation was performed using an etch-and-rinse adhesive (OptibondFL, Kerr Corporation), and two different dual-curing composite cements (Variolink, Ivoclar Vivadent/Calibra, Dentsply Sirona)...
February 24, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29475666/influence-of-salmonid-aquaculture-activities-on-a-rock-cliff-epifaunal-community-in-jervis-inlet-british-columbia
#14
T F Sutherland, A M Sterling, M Ou
Benthic video surveys were carried out at two marine finfish aquaculture and associated reference sites in Jervis Inlet (JI), British Columbia. Substrate composition, epifaunal diversity, mat-forming taxa (primary indicators: opportunistic polychaete complexes (OPCs) and sulfide-oxidizing bacteria) and waste pellets were quantitatively assessed. Hard-bottom substrates were dominated by rock wall, skeletal sponge matrix, graded bedrock, rock-veneer, and cobble. Aquaculture waste outputs (modelled depositional carbon fluxes and observations of waste feed/faecal pellets) were correlated with benthic organic enrichment indicators (OPC and sulfide-oxidizing bacteria)...
February 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29422471/evaluation-of-the-flexural-strength-of-submicron-hybrid-composite-using-different-fabrication-methods-an-in-vitro-study
#15
Achla Sethi, Sameer Makkar, Kanwar Sidharth, Taranjit Kaur, Sukhpash Singh Sandhu, Amit K Joseph
AIM: The aim of this study is to perform three-point bend test on submicron hybrid composite fabricated with direct and indirect veneer technique. MATERIALS AND METHODS: A total of 20 maxillary anterior teeth were selected, and labial reduction of 0.5 to 0.75 mm with a chamfered finish line for veneer preparation was done. Teeth were divided into two groups depending on fabrication technique being used: group I-veneers fabricated with light and group II-veneers fabricated with light and heat (PHOTOPOL)...
February 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29399941/esthetic-and-functional-management-of-an-ankylosed-central-incisor-with-a-conservative-restorative-approach
#16
Andre V Ritter, Leonardo Fernandes Cunha, Gisele M Correr
In this case report, we share a conservative and simple restorative management approach for a relatively complex esthetic situation on an adult patient with an ankylosed maxillary central incisor in infra-occlusion. A 37-year-old healthy female patient presented for a consultation with a chief complaint of an unappealing smile. The intraoral exam revealed tooth #8 (FDI 11) was in obvious and significant infra-occlusion due to altered eruption. Periapical radiographs of this area were non-contributory and all teeth responded within normal limits to pulp vitality tests...
February 5, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29395467/zirconia-toughened-mica-glass-ceramics-for-dental-restorations
#17
Sivaranjani Gali, Ravikumar K, B V S Murthy, Bikramjit Basu
OBJECTIVE: The objective of the present study is to understand the role of yttria stabilized zirconia (YSZ) in achieving the desired spectrum of clinically relevant mechanical properties (hardness, elastic modulus, fracture toughness and brittleness index) and chemical solubility of mica glass ceramics. METHODS: The glass-zirconia mixtures with varying amounts of YSZ (0, 5, 10, 15 and 20wt.%) were ball milled, compacted and sintered to obtain pellets of glass ceramic-YSZ composites...
March 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29379906/color-match-of-luting-composites-and-try-in-pastes-the-impact-on-the-final-color-of-cad-cam-lithium-disilicate-restorations
#18
Petros Mourouzis, Elisabeth Koulaouzidou, Georgios Palaghias, Maria Helvatjoglu-Antoniades
AIM: Color matching of the restoration to the adjacent teeth can be difficult due to the translucency of the ceramic and the visual exposure of the polymerized resin cement through the ceramic material. The aim of this study was to identify color differences between try-in pastes and the corresponding luting resin composites. MATERIALS AND METHODS: The materials tested were Variolink Veneer, Variolink Try-In, Variolink Esthetic LC, and Variolink Esthetic Try-In...
2018: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/29379903/cad-cam-based-chairside-restorative-technique-with-composite-resin-for-full-mouth-adhesive-rehabilitation-of-excessively-worn-dentition
#19
Filippo Del Curto, Carlo Massimo Saratti, Ivo Krejci
Since the first introduction of the Cerec system (Sirona) in the early 1980s, the use of computer-aided design/computer-aided manufacture (CAD/CAM) technology has spread widely in modern adhesive dentistry. Thanks to this innovative technology, it has been possible to carry out chairside restorations fully managed by the clinician, with the advantages of lower costs for the patient, more rapid execution of the restorations, and the exclusion of the provisional phase. With further improvements in chairside technologies and materials, specifically in the field of composite resin blocks, it is now possible to fabricate multiple ultrathin, minimally invasive or even noninvasive restorations in one single appointment...
2018: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/29337644/performance-of-monolithic-and-veneered-zirconia-crowns-after-endodontic-treatment-and-different-repair-strategies
#20
A Scioscia, A Helfers, S Soliman, G Krastl, N U Zitzmann
OBJECTIVES: To investigate failure loads of monolithic and veneered all-ceramic crowns after root canal treatment and to analyze marginal integrity of repair fillings. METHODS AND MATERIALS: Seventy-two human molars were restored with monolithic (Zr-All) or veneered (Zr-Ven) zirconia crowns. Molars were assigned to six groups (n=12 per group) depending on restoration material, access type (no access cavity [control] or endodontic treatment [test]), and type of filling (one-step [1-st] or two-step [2-st])...
March 2018: Operative Dentistry
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