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Composite veneers

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https://www.readbyqxmd.com/read/29131447/effect-of-various-treatment-modalities-on-surface-characteristics-and-shear-bond-strengths-of-polyetheretherketone-based-core-materials
#1
Ahmet Kürşat Çulhaoğlu, Serhat Emre Özkır, Volkan Şahin, Burak Yılmaz, Mehmet Ali Kılıçarslan
PURPOSE: To investigate the effect of different surface treatments on the surface roughness (Ra), wettability, and shear bond strength of polyetheretherketone (PEEK) to composite resin. MATERIALS AND METHODS: One hundred ninety eight PEEK specimens were divided into six groups (n = 33). Specimen surfaces were treated with the following surface treatment modalities: silicoating (CoJet), acetone treatment, acid etching (H2 SO4 ), airborne particle abrasion (Al2 O3 ), laser irradiation (Yb:PL laser), and the nontreated surface serving as the control...
November 13, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29082046/tooth-reattachment-and-palatal-veneer-on-a-multidisciplinary-approach-of-crown-fractures-in-upper-central-incisors
#2
Vanessa Machado, Ricardo Alves, Luísa Lopes, João Botelho, José João Mendes
Dental trauma is more common in young patients and its sequelae may have great impact on the esthetics, functions, and phonetics. This paper reports a case of trauma in both central incisors in a young 17-year-old patient who was treated using adhesive tooth fragment reattachment on tooth 2.1 and a palatal indirect composite veneer on tooth 1.1. Regarding the available literature and fracture extension, the treatment approach proposed for this case provided good functional and esthetic outcomes. Clinical and radiographic results after 1 year were successful...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/29079354/effect-of-luting-agent-on-the-load-to-failure-and-accelerated-fatigue-resistance-of-lithium-disilicate-laminate-veneers
#3
Marco M M Gresnigt, Mutlu Özcan, Marco Carvalho, Priscilla Lazari, Marco S Cune, Peywand Razavi, Pascal Magne
OBJECTIVE: The aim of this study was to investigate the influence of the luting agent on the application of laminate veneers (LVs) in an accelerated fatigue and load-to-failure test after thermo-cyclic aging. METHODS: Sound maxillary central incisors (N=40) were randomly divided into four groups to receive LVs (Li2Si2O5) that were adhesively bonded: Group CEMF: Adhesive cement (Variolink Esthetic LC), fatigue test; Group CEMLF: Adhesive cement, load-to-failure test; Group COMF: Resin composite (Enamel HFO), fatigue test; Group COMLF: Resin composite, load-to-failure test...
October 24, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29042725/the-effect-of-polymerization-and-preparation-techniques-on-the-microleakage-of-composite-laminate-veneers
#4
Neslihan Celik, Merve Iscan Yapar, Numan Taşpınar, Nilgun Seven
BACKGROUND: Marginal leakage is the important factor influencing the maintenance of dental esthetic. AIM: The purpose of this study was to evaluate the relationship between the preparation techniques and type of polymerization techniques on microleakage of composite laminate veneers. MATERIALS AND METHODS: Ninety-one same sized, caries-free human maxillary central incisors were randomly assigned to 13 groups (n = 7) and were designed with four different preparation techniques (window type, feather type, bevel type, and incisal overlap type)...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28960775/cad-cam-ceramic-fragments-in-anterior-teeth-a-clinical-report
#5
Bruna S Sinhori, Sylvio Monteiro, Jussara K Bernardon, Luiz N Baratieri
OBJECTIVE: The treatment of fractured teeth has become a great opportunity to investigate new approaches in the field of restorative dentistry. Restoring teeth with ceramic fragments is a great challenge, however, the computer aided design/computer aided manufacturing (CAD/CAM) technology allows the fabrication of both laminate veneers and ceramic fragments. MATERIALS AND METHODS: Thus, the aim of this article was to report a clinical case where anterior teeth, fractured due to a sport practice, were restored with CAD/CAM ceramic fragments...
September 28, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28955597/treatment-approaches-for-traumatized-anterior-teeth-with-excessive-tissue-loss-three-case-reports
#6
Zuhal Yildirim, Omer Yavuz Gomec
Use of direct composite and indirect laminate veneers has been an alternative to metal- and all-ceramic crowns for anterior teeth restorations. Dental traumas are the most common reasons for excessive tissue loss. Treatment options depend on the amount of remaining tissue, the extent of the damage to dental pulp and periapical tissues and the time elapsed before dental treatment. The aim of this case report was to evaluate the direct and indirect techniques used in the treatments of traumatically fractured anterior teeth...
2017: J Istanb Univ Fac Dent
https://www.readbyqxmd.com/read/28944358/ceramic-vs-composite-veneering-of-full-arch-implant-supported-zirconium-frameworks-assessing-patient-preference-and-satisfaction-a-crossover-double-blind-randomised-controlled-trial
#7
Mauro Merli, Eugenio Bianchini, Giorgia Mariotti, Marco Moscatelli, Matteo Piemontese, Giorgio Rappelli, Michele Nieri
PURPOSE: The objectives of this two-period, crossover, mono-centred, double-blind, randomised controlled trial (RCT) were to compare two different materials used for full arch implant-supported prosthetic restorations with regard to patient preference and impact on a patient's quality of life. MATERIALS AND METHODS: Edentulous patients requesting one full arch restoration in the mandible or maxilla supported by dental implants were included in this study. Patients were randomised to receive either a full arch zirconia framework hand-veneered with ceramic, or a full arch zirconia framework hand-veneered with composite material...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28886769/dental-ceramics-for-restoration-and-metal-veneering
#8
REVIEW
Yu Zhang, J Robert Kelly
A survey of the development of dental ceramics is presented to provide a better understanding of the rationale behind the development and clinical indications of each class of ceramic material. Knowledge of the composition, microstructure, and properties of a material is critical for selecting the right material for specific applications. The key to successful ceramic restorations rests on material selection, manufacturing technique, and restoration design, including the balancing of several factors such as residual stresses, tooth contact conditions, tooth size and shape, elastic modulus of the adhesives and tooth structure, and surface state...
October 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28876966/the-effect-of-resin-bonding-on-long-term-success-of-high-strength-ceramics
#9
M B Blatz, M Vonderheide, J Conejo
Digital manufacturing, all-ceramics, and adhesive dentistry are currently the trendiest topics in clinical restorative dentistry. Tooth- and implant-supported fixed restorations from computer-aided design (CAD)/computer-aided manufacturing (CAM)-fabricated high-strength ceramics-namely, alumina and zirconia-are widely accepted as reliable alternatives to traditional metal-ceramic restorations. Most recent developments have focused on high-translucent monolithic full-contour zirconia restorations, which have become extremely popular in a short period of time, due to physical strength, CAD/CAM fabrication, and low cost...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28862587/modified-peek-as-an-alternative-crown-framework-material-for-weak-abutment-teeth-a-case-report
#10
Panagiotis Zoidis, Eleonora Bakiri, Ioannis Papathanasiou, Anastasia Zappi
This case report describes the fabrication of 3 single crowns for a patient with weakened abutment teeth. The patient exhibited nocturnal bruxism and clenching but refused to use an occlusal appliance. The abutment teeth were endodontically treated and presented with loss of tooth structure and thin axial walls. The patient was seeking a metal-free restoration, and all-ceramic restorations were contraindicated because of the potential for abrasion of the opposing teeth and direct force transmission to the weak abutment teeth...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28829932/amelogenesis-imperfecta-case-study
#11
C Leevailoj, S Lawanrattanakul, K Mahatumarat
Amelogenesis imperfecta (AI) refers to a group of rare genetic disorders that involve tooth development and that are passed down through families as a dominant trait. This condition is characterized by abnormal enamel formation caused by gene mutations that alter the quality and/or quantity of enamel. This dental problem can impact both primary and permanent dentition, varies among affected individuals, and results in esthetic and functional problems. This condition caused the patient in the current case report to have a lack of confidence when speaking...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28806427/fixed-dental-prostheses-and-single-tooth-crowns-based-on-ceria-stabilized-tetragonal-zirconia-alumina-nanocomposite-frameworks-outcome-after-2-years-in-a-clinical-trial
#12
Fabian Hüttig, Jan P Keitel, Andreas Prutscher, Sebastian Spintzyk, Andrea Klink
PURPOSE: This clinical trial tested bilayered restorations based on ceria-stabilized tetragonal zirconia/alumina frameworks veneered with feldspathic ceramic. MATERIALS AND METHODS: A total of 67 crowns and 40 fixed dental prostheses (FDPs) were luted in 57 patients with self-etching/self-adhesive composite resin cement. Dental status and integrity of restorations were evaluated at 2 weeks, 6 months, and then annually. RESULTS: A total of 66 crowns and 36 FDPs (88% posterior) survived for success rates of 93...
September 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28717792/accelerated-fatigue-resistance-%C3%A2-of-novel-design-histoanatomic-%C3%A2-implant-restorations-made-of-%C3%A2-cad-cam-bilaminar-assemblies
#13
Ivan Molina, Jack Goldberg, Claudia Maziero Volpato, Pascal Magne
OBJECTIVES: Evaluate the fatigue resistance and failure mode of novel-design implant restorations made of histoanatomic computer-assisted design/computer-assisted manufacturing (CAD/CAM) bilaminar bonded assemblies. MATERIAL AND METHODS: 60 screw-retained implant restorations were fabricated. Monolithic restorations were used as a control group (15 lithium disilicate: group CE; and 15 nanofilled composite resin: group CL), and compared with bilaminar restorations (15 dentin-shaped lithium disilicate mesostructures with a bonded nanofilled composite resin veneer: group CEL; and 15 dentin-shaped nanofilled composite resin mesostructures with a bonded lithium disilicate veneer: group CLE)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28697213/mega-abrasion-case-history-report-on-management-of-a-fluorosis-affected-patient
#14
Stefano Ardu
Different approaches ranging from veneers and crowns to employing the more conservative use of freehand resin composites have been proposed to correct esthetic problems caused by enamel fluorosis (EF). However, the protocol of mega-abrasion followed by microabrasion may be used as an alternative. It is less invasive and can minimize the unesthetic brown-to-whitish spots caused by EF. This article describes an easy and low-cost technique for managing enamel defects in a patient with severe enamel fluorosis.
July 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28662859/monolithic-zirconia-dental-crowns-internal-fit-margin-quality-fracture-mode-and-load-at-fracture
#15
Christian Schriwer, Anneli Skjold, Nils Roar Gjerdet, Marit Øilo
OBJECTIVE: Dental all-ceramic restorations of zirconia, with and without an aesthetic veneering layer, have become a viable alternative to conventional metal-ceramic restorations. The aim of this study was to evaluate whether factors of the production methods or the material compositions affect load at fracture, fracture modes, internal fit or crown margins of monolithic zirconia crowns. METHODS: Sixty crowns made from six different commercially available dental zirconias were produced to a model tooth with a shallow circumferential chamfer preparation...
June 26, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28655478/the-impact-of-argon-oxygen-low-pressure-plasma-on-shear-bond-strength-between-a-veneering-composite-and-different-peek-materials
#16
Andreas Dominik Schwitalla, Friederike Bötel, Tycho Zimmermann, Mona Sütel, Wolf-Dieter Müller
OBJECTIVE: The aim of the study was to evaluate the impact of low-pressure argon/oxygen plasma with and without previous sandblasting on the shear bond strength (SBS) between dental PEEK compounds and a veneering composite. METHODS: Of one type of unfilled PEEK and two pigment powder filled PEEK compounds, forty rectangular plates each were prepared and polished up to 4000 grit. The samples were randomly assigned to four surface pre-treatment groups, each consisting of ten specimens (1...
June 24, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28653051/posterior-indirect-adhesive-%C3%A2-restorations-updated-indications-%C3%A2-and-the-morphology-driven-%C3%A2-preparation-technique
#17
Marco Veneziani
The aim of this article is to identify the indications for adhesively cemented restorations and to provide a correct step-by-step protocol for clinicians. New cavity preparation principles are based on morphological considerations in terms of geometry (maximum profile line and inclination of cusp lines), and structure (dentin concavity and enamel convexity). In this article, we discuss previous preparation concepts that were not designed purely for adhesive restorations and were therefore not conservative enough or suitable for adhesive procedures...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28653048/porcelain-veneer-post-bonding-crack-repair-by-resin-infiltration
#18
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/28653047/noninvasive-bilaminar-cad-cam-composite-resin-veneers-%C3%A2-a-semi-in-direct-approach
#19
Pascal Magne
Direct composite resin restorations have been recognized for their valuable clinical service and respect of intact hard tissue. The cost-effectiveness and inherent minimally invasive approach of resin-based materials means that they are also gaining popularity for use in computer-aided design/computer-aided manufacture (CAD/CAM) procedures. Several cases from the student clinics at the Herman Ostrow School of Dentistry of USC are presented that could have been resolved either with direct composite resin restorations or with indirect porcelain veneers...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28647864/bonding-of-composite-resins-to-peek-the-influence-of-adhesive-systems-and-air-abrasion-parameters
#20
Bogna Stawarczyk, Simon Taufall, Malgorzata Roos, Patrick R Schmidlin, Nina Lümkemann
OBJECTIVE: The objective of the study was to investigate the tensile bond strength (TBS) to polyaryletheretherketone (PEEK) after different pretreatment and conditioning methods. METHODS: Four hundred PEEK specimens were fabricated and allocated to the following air-abrasion methods (n 1 = 80/pretreatment): (i) 50 μm Al2O3 (0.05 MPa); (ii) 50 μm Al2O3 (0.35 MPa); (iii) 110 μm Al2O3 (0.05 MPa); (iv) 110 μm Al2O3 (0.35 MPa); and (v) Rocatec 110 μm (0...
June 24, 2017: Clinical Oral Investigations
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