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https://www.readbyqxmd.com/read/29340353/clinical-performance-of-one-piece-screw-retained-implant-crowns-based-on-hand-veneered-cad-cam-zirconia-abutments-after-a-mean-follow-up-period-of-2-3-years
#1
Nicole Schnider, Fiona Alena Forrer, Urs Brägger, Stefan Paul Hicklin
PURPOSE: The aim of this study was to evaluate the clinical performance of one-piece, screw-retained implant crowns based on hand-veneered computer-aided design/computer-aided manufacture (CAD/CAM) zirconium dioxide abutments with a crossfit connection at least 1 year after insertion of the crown. MATERIALS AND METHODS: Consecutive patients who had received at least one Straumann bone level implant and one-piece, screw-retained implant crowns fabricated with CARES zirconium dioxide abutments were reexamined...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29337645/conservative-approach-for-treatment-of-maxillary-lateral-incisor-agenesis-with-the-deciduous-tooth-retained-18-month-follow-up
#2
Cecm Lameira, S R Mestrener, Nip Pini, F M Salomão, A A Pesqueira, T C Fagundes
This case describes a female patient with agenesis of the maxillary right lateral incisor, with her permanent canine in its position and the deciduous canine retained. Additionally, she presented with a maxillary left peg lateral incisor. To solve her functional and esthetic complaints, a multidisciplinary approach involving perio-restorative procedures was proposed. Periodontal surgeries were performed to align the gingival contour, and the restorative approach utilized ceramic veneers. At the 18-month clinical and radiographic follow-up, the treatment outcome was stable, with maintenance of the clinical results achieved and without any sign of deciduous tooth resorption...
January 16, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29337644/performance-of-monolithic-and-veneered-zirconia-crowns-after-endodontic-treatment-and-different-repair-strategies
#3
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])...
January 16, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29333772/-effect-of-different-surface-processes-on-the-bond-strength-between-zirconia-framework-and-veneering-ceramic
#4
Gong Qi, Sun Huiqiang, Hu Yijun, Chen Jia, Ding Weishan
OBJECTIVE: To compare the effect of different surface processes on bond strength and microscopic structure using a scanning electron microscope (SEM) and an energy distribution spectrum (EDS) at the bonding interface between zirconia framework and veneering ceramic. METHODS: WIELAND zirconia core material was cut into 33 rectangular specimens and fired on into rectangular specimens (10 mm×5 mm×5 mm). The specimens were randomly divided into three groups (n=
11)...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29322655/efficiency-of-er-yag-laser-in-debonding-of-porcelain-laminate-veneers-by-contact-and-non-contact-laser-application-modes-in-vitro-study
#5
Mohand ALBalkhi, Eyad Swed, Omar Hamadah
OBJECTIVE: To determine the efficiency of debonding porcelain laminate veneers (PLV) by using several laser parameters and two different application modes of Er:YAG laser [contact (CM) and non-contact (NCM)], by verification of the consumed PLV debonding time and the changes in dental pulp temperature. MATERIALS AND METHODS: Forty extracted non-carious human maxillary premolars were prepared for receiving PLV. Sixteen of them were divided into two groups, each of them comprised eight samples based on the application mode; group A with NCM, and group B with CM...
January 11, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29316569/prospective-evaluation-of-posterior-fixed-zirconia-dental-prostheses-10-year-clinical-results
#6
Sven Rinke, Jens Wehle, Xenia Schulz, Ralf Bürgers, Matthias Rödiger
PURPOSE: To investigate the clinical survival and success rates of conventionally luted three- and four-unit fixed dental prostheses (FDPs) with zirconia frameworks (Cercon Smart Ceramics, DeguDent) after a mean observation period of 119 ± 36 months. MATERIALS AND METHODS: A total of 75 patients were treated in the Department of Prosthodontics at the University of Goettingen, Germany, and a total of 99 posterior FDPs were inserted and luted with zinc phosphate cement...
January 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29315947/color-in-zirconia-based-restorations-and-related-factors-a-literature-review
#7
REVIEW
Farhad Tabatabaian
Zirconia ceramic is a popular trend in esthetic and restorative dentistry. Computer-aided design/computer-aided manufacturing (CAD/CAM) systems have been well developed to fabricate zirconia frameworks and restorations with acceptable mechanical properties. Zirconia ceramics have excellent optical characteristics; however, achieving optimal esthetic outcomes with zirconia-based restorations is still challenging due to multiple effective factors on the final color. These factors are different layers of a zirconia-based restoration and its underlying structures including: dental substrate, cement, zirconia coping, veneering ceramic, and glaze...
January 9, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29314449/resin-cement-correspondence-with-try-in-paste-and-influence-on-the-immediate-final-color-of-veneers
#8
Edenize Cristina Vaz, Maysa Magalhães Vaz, Érica Miranda de Torres, João Batista de Souza, Terezinha de Jesus Esteves Barata, Lawrence Gonzaga Lopes
PURPOSE: To assess the correspondence of shades between try-in pastes and resin cements and their influence on the final color of veneers. MATERIALS AND METHODS: Bovine teeth (n = 140) were prepared and divided into 2 groups (a or b) according to ceramic veneer thickness (0.35 or 0.70 mm). Seventy teeth (n = 70) were distributed in 7 groups (groups 1 to 7a and groups 1 to 7b; n = 10). Try-in pastes and their corresponding resin cements were used according to the value: groups 1a and 1b (value -3); groups 2a and 2b (-2); groups 3a and 3b (-1); groups 4a and 4b (0); groups 5a and 5b (+1); groups 6a and 6b (+2); groups 7a and 7b (+3)...
January 3, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29310876/effect-of-ceramic-material-and-resin-cement-systems-on-the-color-stability-of-laminate-veneers-after-accelerated-aging
#9
Seong-Min Lee, Yu-Sung Choi
STATEMENT OF PROBLEM: Laminate veneers are susceptible to color change during clinical service. Studies that compare the effects of different ceramic and resin cement systems on color stability are lacking. PURPOSE: The purpose of this in vitro study was to evaluate the color stability of laminate veneers after accelerated aging using different ceramic and resin cement systems. MATERIAL AND METHODS: Ceramic specimens (N=168; shade A1; thickness, 0...
January 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29308507/-analysis-and-prevention-of-dust-pollution-caused-by-5-common-prosthetic-materials
#10
Xiang-Wen Yang, Bin Wei, Cao-Yun Zhu, Liang Qian, Yi-Han Li
PURPOSE: To analyze and evaluate dust pollution in prosthodontic clinic and make proposal for reasonable protection. METHODS: This study analyzed the particle size, element composition and dust concentration of 5 materials which were commonly used in dental restorations (veneering ceramics, cobalt-chromium alloy, photosensitive plastic, hard base resin, advanced artificial teeth) by using scanning electron microscopy (SEM), X-ray energy dispersive spectrometer(EDS) and dust concentration laser tester, in order to assess the effects of prosthodontic dust posed on medical staff health and put forward reasonable suggestions for prevention and control of dust pollution...
October 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29304908/incisal-preparation-design-for-ceramic-veneers-a-critical-review
#11
Sy Yin Chai, Vincent Bennani, John M Aarts, Karl Lyons
BACKGROUND: The authors reviewed and identified the evidence for the various incisal preparation designs for ceramic veneers. TYPES OF STUDIES REVIEWED: The authors searched MEDLINE with PubMed and Ovid to identify any articles in the English language related to the topic up through March 2017 using a combination of key words: "porcelain veneer or ceramic veneer or dental veneer or labial veneer" AND "preparation," NOT "composite veneer," NOT "crown," NOT "implant," NOT "fixed partial denture or bridge or denture," NOT "porcelain-fused-to-metal," NOT "marginal gap or fit...
January 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29303973/effect-of-lithium-disilicate-reinforced-liner-treatment-on-bond-and-fracture-strengths-of-bilayered-zirconia-all-ceramic-crown
#12
Yong-Seok Jang, Hyeong-Rok Noh, Min-Ho Lee, Myung-Jin Lim, Tae-Sung Bae
This study was performed to evaluate the effect of a lithium-disilicate spray-liner application on both the bond strength between zirconia cores and heat-pressed lithium-disilicate glass-ceramic veneers, and the fracture strength of all-ceramic zirconia crowns. A lithium-disilicate reinforced liner was applied on the surface of a zirconia core and lithium-disilicate glass-ceramic was veneered on zirconia through heat press forming. Microtensile and crown fracture tests were conducted in order to evaluate, respectively, the bonding strength between the zirconia cores and heat pressed lithium-disilicate glass-ceramic veneers, and the fracture strength of bilayered zirconia all-ceramic crowns...
January 5, 2018: Materials
https://www.readbyqxmd.com/read/29302294/severe-tetracycline-dental-discoloration-restoration-with-conventional-feldspathic-ceramic-veneers-a-clinical-report
#13
Vicente Faus-Matoses, Ignacio Faus-Matoses, Esther Ruiz-Bell, Vicente J Faus-Llácer
The treatment of severe tetracycline discoloration is a challenge for the dentist. There are several treatment options and one of the most effective is the use of feldspathic veneers. The aim of this clinical case was to carry out the replacement with conventional feldspathic ceramic veneers on a patient with highly stained teeth (grade IV tetracycline) by a minimally invasive approach. Clinical examination revealed gingival retraction, color change of the veneers, ceramic cracked of 1.1 and 1.3 and incisal wear in lower anterior teeth...
November 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29302293/orthodontics-and-veneers-to-restore-the-anterior-guidance-a-minimally-invasive-approach
#14
Vicente Faus-Matoses, Ignacio Faus-Matoses, Ana Jorques-Zafrilla, Vicente J Faus-Llácer
Tooth wear is defined as the progressive loss of a tooth's surface due to actions other than those which cause tooth decay or dental trauma. It is a pathological condition with an increasing prevalence among young people. The aim of this article is to describe an alternative treatment modality to rehabilitate the anterior guidance by a minimally invasive interdisciplinary ortho-restorative treatment. Two patients came to the dental clinic for restorative treatment in order to rehabilitate the worn anterior dentition...
November 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29284106/ultrathin-monolithic-zirconia-veneers-reality-or-future-report-of-a-clinical-case-and-one-year-follow-up
#15
R Souza, F Barbosa, G Araújo, E Miyashita, M A Bottino, R Melo, Y Zhang
Yttria-stabilized polycrystalline zirconia ceramics have greatly advanced over the past few years. High-translucent zirconia is a newly introduced ceramic that affords high strength and esthetics and that has significantly increased the clinical indications of monolithic zirconia restorations. Thus, the purpose of this case report was to evaluate the performance of ultrathin monolithic zirconia veneers adhesively luted to enamel surfaces after minimally invasive preparations; in addition, we aimed at presenting a clinical protocol for zirconia surface treatment in order to promote bonding effectiveness to resin cement...
January 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29282849/laser-assisted-removal-of-all-ceramic-fixed-dental-prostheses-a-comprehensive-review
#16
REVIEW
Sergio Varela Kellesarian, Vanessa Ros Malignaggi, Khaled M Aldosary, Fawad Javed
OBJECTIVE: The aim of this comprehensive review was to assess the effectiveness of erbium lasers in the removal of all ceramic fixed dental prostheses (FDPs). OVERVIEW: Indexed databases were searched without language or time restriction up to and including December 2017 using different combinations of the following keywords: "lasers"; "phototherapy"; "crowns"; "prostheses and implants"; "inlays"; "ceramics"; "dental porcelain"; "zirconium"; "removal"; "debonding"; "fixed dental prostheses"; "veneers"; "laminates"; and "fixed bridge...
December 28, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29279628/providing-a-harmonious-smile-with-laminate-veneers-for-a-patient-with-peg-shaped-lateral-incisors
#17
Simone Beatriz Alberton, Victória Alberton, Rodrigo Varella de Carvalho
The most common discrepancy concerning tooth size is the presence of peg-shaped lateral incisors, which can cause teeth with reduced size, anterior diastema, and consequently an unpleasant smile. The development of the adhesive dentistry and ceramic veneers allowed all ceramic-bonded restorations to become an esthetic and functional approach to reestablish the smile harmony. The purpose of this clinical report is to describe a conservative treatment approach to recover an esthetic disharmony caused by bilateral peg-shaped lateral incisors...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29275170/complete-rehabilitation-of-compromised-full-dentitions-with-adhesively-bonded-all-ceramic-single-tooth-restorations-long-term-outcome-in-patients-with-and-without-amelogenesis-imperfecta
#18
Andrea Klink, Martin Groten, Fabian Huettig
OBJECTIVES: This clinical follow-up evaluated the long-term outcome of full-mouth rehabilitations with adhesively bonded all-ceramic restorations in patients suffering from amelogenesis imperfecta (AI) or affected by extensive tooth wear including a loss of the vertical dimension of occlusion. MATERIALS AND METHODS: Included for evaluation were all patients treated with adhesively bonded monolithic single-tooth restorations made of silicate or lithium disilicate ceramics; allowing a maximum four missing teeth and a facial feldspathic veneering of LDS anterior crowns...
December 21, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29273236/effect-of-tooth-substrate-and-porcelain-thickness-on-porcelain-veneer-failure-loads-in-vitro
#19
Chunling Ge, Chad C Green, Dalene A Sederstrom, Edward A McLaren, James A Chalfant, Shane N White
STATEMENT OF PROBLEM: Bonded porcelain veneers are widely used esthetic restorations. High success and survival rates have been reported, but failures do occur. Fractures are the commonest failure mode. Minimally invasive or thin veneers have gained popularity. Increased enamel and porcelain thickness improve the strength of veneers bonded to enamel, but less is known about dentin or mixed substrates. PURPOSE: The purpose of this in vitro study was to measure the influences of tooth substrate type (all-enamel, all-dentin, or half-dentin-half-enamel) and veneer thickness on the loads needed to cause initial and catastrophic porcelain veneer failure...
December 19, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29261853/metal-free-materials-for-fixed-prosthodontic-restorations
#20
REVIEW
Carlo E Poggio, Carlo Ercoli, Lorena Rispoli, Carlo Maiorana, Marco Esposito
BACKGROUND: Fixed prosthodontic treatment (crowns, fixed dental prostheses (FDPs), complete arch prostheses) involves the use of several different materials to replace missing tooth structure. Traditionally full metal or metal frameworks veneered with ceramic (metal-ceramic (MC)) have been used. In recent years several different metal-free systems have become available to clinicians and patients. In general, metal-free restorations should allow practitioners to better reproduce natural tooth colour, avoiding shortcomings of MC restorations...
December 20, 2017: Cochrane Database of Systematic Reviews
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