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ceramic veneer

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https://www.readbyqxmd.com/read/29144007/analysis-of-surface-roughness-fracture-toughness-and-weibull-characteristics-of-different-framework-veneer-dental-ceramic-assemblies-after-grinding-polishing-and-glazing
#1
Guillermo Pradíes, Laura Godoy-Ruiz, Mutlu Özcan, Isabel Moreno-Hay, Francisco Martínez-Rus
PURPOSE: To compare the surface roughness and biaxial flexural strength of dental ceramics obtained after chairside surface modification by mechanical polishing procedures, versus laboratory reglazing. MATERIALS AND METHODS: Discs (16 × 1.5 ± 1.6 mm) (N = 90) of various framework-veneering combinations were fabricated: D/FC: lithium disilicate/feldspathic ceramic; Z/AL: zirconium dioxide/aluminous ceramic; N/FC: noble alloy/feldspathic ceramic; N/FF: noble alloy feldspathic with fluorapatite; B/FC: base alloy/feldspathic ceramic; B/FF: base alloy/feldspathic ceramic with fluorapatite...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29139209/protocol-for-a-new-concept-of-no-prep-ultrathin-ceramic-veneers
#2
Camillo D'Arcangelo, Mirco Vadini, Maurizio D'Amario, Zaccheo Chiavaroli, Francesco De Angelis
OBJECTIVES: No-prep veneers, although ideally considered the best option because of tooth structure maximum preservation, have been frequently criticized for some potential limitations including esthetic outcomes and periodontal complications. CLINICAL CONSIDERATIONS: A new protocol to optimize no-prep veneers restorations is presented. A key point of the proposed technique is to identify optimal margins' positions: margin is positioned in the point of maximum convexity of teeth, avoiding the over contouring of traditional no-prep veneers...
November 15, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29104596/deposition-of-crystalline-hydroxyapatite-nanoparticles-on-y-tzp-ceramic-a-potential-solution-to-enhance-bonding-characteristics-of-y-tzp-ceramics
#3
Abbas Azari, Sakineh Nikzad Jamnani, Arash Yazdani, Faezeh Atri, Vania Rasaie, Abbas Fazel Anvari Yazdi
Objectives: Many advantages have been attributed to dental zirconia ceramics in terms of mechanical and physical properties; however, the bonding ability of this material to dental structure and/or veneering ceramics has always been a matter of concern. On the other hand, hydroxyapatite (HA) shows excellent biocompatibility and good bonding ability to tooth structure, with mechanically unstable and brittle characteristics, that make it clinically unacceptable for use in high stress bearing areas...
March 2017: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29069155/effects-of-porcelain-thickness-on-the-flexural-strength-and-crack-propagation-in-a-bilayered-zirconia-system
#4
Viviane Maria Gonçalves de Figueiredo, Sarina Maciel Braga Pereira, Eduardo Bressiani, Márcia Carneiro Valera, Marco Antônio Bottino, Yu Zhang, Renata Marques de Melo
OBJECTIVE: This study evaluated the influence of porcelain (VM9, VITA Zahnfabrik, Germany) thickness on the flexural strength and crack propagation in bilayered zirconia systems (YZ, VITA Zahnfabrik, Germany). MATERIAL AND METHODS: Thirty zirconia bars (20.0x4.0x1.0 mm) and six zirconia blocks (12.0x7.5x1.2 mm) were prepared and veneered with porcelain with different thickness: 1 mm, 2 mm, or 3 mm. The bars of each experimental group (n=10) were subjected to four-point flexural strength testing...
September 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29044828/fracture-resistance-of-monolithic-glass-ceramics-versus-bilayered-zirconia-based-restorations
#5
Tamer A Hamza, Rana M Sherif
PURPOSE: To compare the fracture resistance of monolithic reinforced glass-ceramic restorations with bilayer zirconia-based restorations. MATERIALS AND METHODS: Fifteen ceramic crowns were fabricated on epoxy dies duplicated from a stainless steel master die. They were divided into 3 equal groups (n = 5) according to the type of ceramic material used: group I, monolithic lithium disilicate (IPS e.max CAD), group V, monolithic zirconia-reinforced lithium silicate (Vita Suprinity), and group B (bilayered zirconia substructure with veneering ceramic)...
October 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29042114/extending-the-service-life-of-existing-dental-restorations-with-esthetic-and-functional-limitations
#6
Malin Strasding, Vincent Fehmer, Bjarni E Pjetursson, Irena Sailer
Adhesive cementation is a useful procedure not only for cementing restorations onto teeth but also for attaching new ceramic restorations to existing restorations to improve their esthetics and/or function. This clinical report presents a technique for modifying an existing nonsatisfactory implant-supported fixed dental prosthesis by means of adhesively cemented veneers and onlays bonded to the pre-existing metal-ceramic surface with resin cement. This modification may avoid the replacement of the fixed dental prosthesis, reducing both treatment costs and time while fulfilling the patient's demands...
October 14, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28983534/from-orthodontic-treatment-plan-to-ultrathin-no-prep-cad-cam-temporary-veneers
#7
Stefano Patroni, Renato Cocconi
Several treatment options are described in the literature to solve the microdontia-related problems of maxillary anterior teeth. These options are often focused on an orthodontic rather than a restorative approach. The case presented here started with an orthodontic phase followed by a restorative one. The aim of the orthodontic phase was to achieve the correct spacing, respecting ideal average tooth proportions. This was done using a digital setup to restore the six anterior teeth, so that an optimal esthetic and functional result was achieved by the end of the orthodontic treatment...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28983530/ceramic-laminate-veneers-clinical-procedures-with-a-multidisciplinary-approach
#8
Marco Veneziani
Complex cases with high esthetic needs represent a challenge for clinicians. A multidisciplinary approach is vital to achieve the planned result. New technological devices are needed to facilitate the collaboration between the clinical team members and to develop a fluent and effective diagnostic and therapeutic pathway. This article describes a well-defined protocol for the treatment of complex esthetic cases with the use of ceramic laminate veneers. The protocol involves different branches of dentistry: periodontal therapy, mucogingival surgery, restorative dentistry, orthodontics, and prosthodontics...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28969917/influence-of-spark-erosion-on-the-fit-of-screw-retained-co-cr-fixed-complete-denture-frameworks-veneered-with-different-materials
#9
Anna Gabriella Camacho Presotto, Luciana Valadares Oliveira, Marina Xavier Pisani, Valentim Adelino Ricardo Barão, Marcelo Ferraz Mesquita
STATEMENT OF PROBLEM: Spark erosion is a fit corrective technology that can be used even after the veneering material has been applied. The framework does not require sectioning, thus preserving its mechanical resistance. However, the spark erosion effect on veneered Co-Cr fixed complete denture (FCD) frameworks has not been investigated. PURPOSE: The purpose of this in vitro study was to evaluate whether spark erosion is effective in improving marginal fit on screw-retained Co-Cr FCD frameworks veneered with different materials...
September 29, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28969914/an-up-to-50-year-follow-up-of-crown-and-veneer-survival-in-a-dental-practice
#10
Ryan C Olley, Manoharan Andiappan, Peter Frost
STATEMENT OF PROBLEM: Indirect restorations are an important treatment in dental practice, but long-term survival studies are lacking. PURPOSE: The purpose of this retrospective study was to report on the outcome of indirect restorations, which were followed up annually for up to 50 years in a dental practice. MATERIAL AND METHODS: A retrospective survival study was undertaken at a mixed National Health Service (NHS)/private dental practice in London, UK...
September 29, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28967401/association-of-sleep-bruxism-with-ceramic-restoration-failure-a-systematic-review-and-meta-analysis
#11
REVIEW
Gilberto de Souza Melo, Elis Ângela Batistella, Eduardo Bertazzo-Silveira, Thais Marques Simek Vega Gonçalves, Beatriz Dulcineia Mendes de Souza, André Luís Porporatti, Carlos Flores-Mir, Graziela De Luca Canto
STATEMENT OF PROBLEM: Ceramic restorations are popular because of their excellent optical properties. However, failures are still a major concern, and dentists are confronted with the following question: is sleep bruxism (SB) associated with an increased frequency of ceramic restoration failures? PURPOSE: The purpose of this systematic review and meta-analysis was to assess whether the presence of SB is associated with increased ceramic restoration failure. MATERIAL AND METHODS: Observational studies and clinical trials that evaluated the short- and long-term survival rate of ceramic restorations in SB participants were selected...
September 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28960775/cad-cam-ceramic-fragments-in-anterior-teeth-a-clinical-report
#12
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/28959767/shear-bond-strength-of-porcelain-to-a-base-metal-compared-to-zirconia-core
#13
S M Abrisham, A Fallah Tafti, S Kheirkhah, M A Tavakkoli
STATEMENT OF PROBLEM: Recent clinical results for Zirconia all-ceramic restorations have revealed that the fracture rate 6-15% of the Zirconia framework is so low and the core of Zirconia has high stability. However, chipping-off fractures of porcelain are the most common reason for failures of Zirconia in the fixed partial dentures. OBJECTIVES: The purpose of this study was to compare the shear bond strength (SBS) of porcelain in the porcelain fused to metal and all-ceramic crowns with Zirconia core...
March 2017: J Dent Biomater
https://www.readbyqxmd.com/read/28955597/treatment-approaches-for-traumatized-anterior-teeth-with-excessive-tissue-loss-three-case-reports
#14
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/28944368/impact-of-prosthetic-material-on-mid-and-long-term-outcome-of-dental-implants-supporting-single-crowns-and-fixed-partial-dentures-a-systematic-review-and-meta-analysis
#15
Samir Abou-Ayash, Malin Strasding, Gerta Rücker, Wael Att
AIM: The impact of prosthetic material selection on implant survival is not clear. The current criteria for choosing a prosthetic material seem to be based on clinician preferences. This systematic review aims to evaluate the impact of restorative materials on the mid- and long-term survival of implants supporting single crowns and fixed partial dentures. MATERIALS AND METHODS: Hand and MEDLINE searches were performed to identify relevant literature for single crowns (SC) and fixed partial dentures (FPD)...
2017: European Journal of Oral Implantology
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
#16
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/28940708/clinical-and-patient-reported-outcomes-of-zirconia-based-implant-fixed-dental-prostheses-results-of-a-prospective-case-series-5%C3%A2-years-after-implant-placement
#17
Benedikt Christopher Spies, Siegbert Witkowski, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVE: To evaluate the clinical and patient-reported outcome of all-ceramic zirconia implant supported fixed dental prostheses (FDPs) 5 years after implant installation. MATERIALS AND METHODS: Thirteen patients were treated with two terminally placed one-piece zirconia implants for a three-unit FDP each. The FDPs consisted of a CAD/CAM-fabricated zirconia framework over-pressed with a fluor-apatite veneering ceramic and were adhesively cemented. Survival and success were assessed by applying modified US Public Health Service (USPHS) criteria and preparation of Kaplan-Meier (KM) plots...
September 21, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28939484/all-ceramic-bi-layered-crowns-supported-by-zirconia-implants-three-year-results-of-a-prospective-multicenter-study
#18
Benedikt C Spies, Marc Balmer, Ronald E Jung, Irena Sailer, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVES: To determine the clinical and patient-reported outcomes of bi-layered, all-ceramic posterior single crowns (SCs) supported by zirconia implants in an uncontrolled, prospective, multicenter study. METHODS: In two centers, 60 patients received 71 one-piece zirconia oral implants to be restored with either SCs (n=49) or three-unit fixed dental prostheses (n=11). Of these patients, 45 implants were restored with all-ceramic, zirconia-based posterior SCs (one per patient)...
September 20, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28936283/influence-of-thermal-and-mechanical-fatigue-on-the-shear-bond-strength-of-different-all-ceramic-systems
#19
Hugo-Alberto Vidotti, Jefferson-Ricardo Pereira, Elizeu Insaurralde, Luiz F Plaça, José R Delben, Accácio-Lins do Valle
BACKGROUND: To evaluate the influence of thermal and mechanical fatigue on the shear bond strength of different all-ceramic cores and veneering porcelain interfaces. MATERIAL AND METHODS: All-ceramic systems tested were lithium disilicate and zirconia veneered by layering technique. Sixty specimens (n=20) were subjected to shear bond strength. Ten of them were thermal and mechanical cycled. Fracture analysis was performed with stereomicroscopy and scanning electron microscopy...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28927393/the-complete-digital-workflow-in-fixed-prosthodontics-a-systematic-review
#20
Tim Joda, Fernando Zarone, Marco Ferrari
BACKGROUND: The continuous development in dental processing ensures new opportunities in the field of fixed prosthodontics in a complete virtual environment without any physical model situations. The aim was to compare fully digitalized workflows to conventional and/or mixed analog-digital workflows for the treatment with tooth-borne or implant-supported fixed reconstructions. METHODS: A PICO strategy was executed using an electronic (MEDLINE, EMBASE, Google Scholar) plus manual search up to 2016-09-16 focusing on RCTs investigating complete digital workflows in fixed prosthodontics with regard to economics or esthetics or patient-centered outcomes with or without follow-up or survival/success rate analysis as well as complication assessment of at least 1 year under function...
September 19, 2017: BMC Oral Health
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