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https://www.readbyqxmd.com/read/28437049/composite-versus-porcelain-part-3-modern-management-of-deep-caries
#1
David J Clark
No abstract text is available yet for this article.
July 2016: Dentistry Today
https://www.readbyqxmd.com/read/28428604/in-vitro-cavity-and-crown-preparations-and-direct-restorations-a-comparison-of-performance-at-the-start-and-end-of-the-fd-programme
#2
F J T Burke, V Ravaghi, L Mackenzie, N Priest, H C Falcon
Aim To assess the performance and thereby the progress of the FDs when they carried out a number of simulated clinical exercises at the start and at the end of their FD year.Methods A standardised simulated clinical restorative dentistry training exercise was carried out by a group of 61 recently qualified dental graduates undertaking a 12 months' duration foundation training programme in England, at both the start and end of the programme. Participants completed a Class II cavity preparation and amalgam restoration, a Class IV composite resin restoration and two preparations for a porcelain-metal full crown...
April 21, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28420828/y-tzp-zirconia-regeneration-firing-microstructural-and-crystallographic-changes-after-grinding
#3
Daniel Patrick Obelenis Ryan, Laiza Maria Grassi Fais, Selma Gutierrez Antonio, Gabriel Rodrigues Hatanaka, Lucas Miguel Candido, Ligia Antunes Pereira Pinelli
This study evaluated microstructural and crystallographic phase changes after grinding (G) and regeneration firing/anneling (R) of Y-TZP ceramics. Thirty five bars (Lava(TM) and Ice Zirkon) were divided: Y-TZP pre-sintered, control (C), regeneration firing (R), dry grinding (DG), dry grinding+regeneration firing (DGR), wet grinding (WG) and wet grinding+regeneration firing (WGR). Grinding was conducted using a diamond bur and annealing at 1,000°C. The microstructure was analyzed by SEM and the crystalline phases by X-ray diffraction (XRD)...
April 18, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28412039/distal-left-main-trifurcation-disease-in-a-patient-with-porcelain-aorta
#4
Ulises Lopez-Peña, Francisco Garcia-Garcia, Rogelio Robledo-Nolasco, Ernesto Fernandez-Ceseña, Ricardo Borrego-Montoya, Neisser Morales
Coronary trifurcation lesions are a complex subset of lesions and are substantially more complex than bifurcations when treated with percutaneous coronary intervention (PCI) because of higher rates of acute periprocedural complications (dissection, myocardial infarction, acute vessel closure) and less effective long-term outcomes (stent thrombosis, restenosis) as compared to non-bifurcation lesions. We present the case of a 73-year-old man who was admitted to our hospital with symptomatic severe aortic stenosis who was found to have a distal left main trifurcation disease as well as porcelain aorta on work-up...
March 8, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28402342/survival-rates-and-bone-and-soft-tissue-level-changes-around-one-piece-dental-implants-placed-with-a-flapless-or-flap-protocol-8-5-year-results
#5
Stuart J Froum, Ismael Khouly
The purpose of the current study was to determine the survival rates and to measure marginal bone changes and peri-implant conditions 8.5 years after placement of one-piece implants with an anodically oxidized surface (AOS). A total of 52 subjects who received a one-piece implant with an AOS using a flapless or flap protocol and completed a previous randomized clinical trial were contacted for a recall visit 8.5 years after implant placement (T8.5). Implant success and survival rates, probing pocket depth (PPD), presence of bleeding on probing (BoP), papilla level, and incidence of complications and peri-implant disease were assessed by a single, blinded examiner...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28392651/degos-like-lesions-associated-with-systemic-lupus-erythematosus
#6
Min Soo Jang, Jong Bin Park, Myeong Hyeon Yang, Ji Yun Jang, Joon Hee Kim, Kang Hoon Lee, Geun Tae Kim, Hyun Hwangbo, Kee Suck Suh
Degos disease, also referred to as malignant atrophic papulosis, was first described in 1941 by Köhlmeier and was independently described by Degos in 1942. Degos disease is characterized by diffuse, papular skin eruptions with porcelain-white centers and slightly raised erythematous telangiectatic rims associated with bowel infarction. Although the etiology of Degos disease is unknown, autoimmune diseases, coagulation disorders, and vasculitis have all been considered as underlying pathogenic mechanisms. Approximately 15% of Degos disease have a benign course limited to the skin and no history of gastrointestinal or central nervous system (CNS) involvement...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28386488/esthetic-reconstruction-of-diastema-with-adhesive-tooth-colored-restorations-and-hyaluronic-acid-fillers
#7
Supawadee Naorungroj
Objective. This report presents a comprehensive esthetic treatment with adhesive tooth-colored restorations in a combination with hyaluronic acid (HA) fillers of diastema in an orthodontic patient with relapse. Case Report. A 36-year-old female patient consulted about 1.5-2 mm midline diastema after an orthodontic relapse of replacing missing central incisors with lateral incisors and dark-colored gingival tissue as a result of a metal post and core with porcelain fused to a metal (PFM) crown at the left lateral incisor...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28383305/a-digital-image-correlation-analysis-of-strain-generated-by-3-unit-implant-supported-fixed-dental-prosthesis-an-in-vitro-study
#8
Raniel F Peixoto, Ana P Macedo, Janisse Martinelli, Adriana C Lapria Faria, Rodrigo Tiossi, Ricardo F Ribeiro, Maria da G C de Mattos
OBJECTIVE: To evaluate the influence of different veneering materials (porcelain and resin) and implants (short and conventional) in the strain distribution of implant-supported splinted fixed partial dentures (FPDs) using digital image correlation (DIC). MATERIAL AND METHODS: Four polyurethane models were fabricated with resin replicas (first premolar) and short and/or conventional implants replacing the second premolar and first and second molars, according to the following configurations: G1, 2 conventional (second premolar and first molar) and 1 short (second molar) implant; G2, 1 conventional (second premolar) and 2 short (first and second molar) implants; G3, 3 short implants; G4, 3 conventional implants...
April 5, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28383139/clinical-characteristics-of-abutment-teeth-with-gingival-discoloration
#9
Ljubisa Ristic, Dragana Dakovic, Srdjan Postic, Zoran Lazic, Miljana Bacevic, Dragana Vucevic
PURPOSE: The grey-bluish discoloration of gingiva (known as "amalgam tattoo") does not appear only in the presence of amalgam restorations. It may also be seen in cases of teeth restored with cast dowels and porcelain-fused-to-metal (PFM) restorations. The aim of this article was to determine the clinical characteristics of abutment teeth with gingival discoloration. MATERIALS AND METHODS: This research was conducted on 25 patients referred for cast dowel and PFM restorations...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28343670/comparison-of-porcelain-bond-strength-of-different-metal-frameworks-prepared-by-using-conventional-and-recently-introduced-fabrication-methods
#10
Necati Kaleli, Duygu Saraç
STATEMENT OF PROBLEM: Most studies evaluating dental laser sintering systems have focused on the marginal accuracy of the restorations. However, the bond strength at the metal-ceramic interface is another important factor that affects the survival of restorations, and currently, few studies focus on this aspect. PURPOSE: The purpose of this in vitro study was to compare the porcelain bond strength of cobalt-chromium (Co-Cr) metal frameworks prepared by using the conventional lost-wax technique, milling, direct metal laser sintering (DMLS), and laser cusing, a direct process powder-bed system...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28337003/shade-of-resin-based-luting-agents-and-final-color-of-porcelain-veneers
#11
(no author information available yet)
All that is required is three shades of luting cement.
March 24, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28334055/the-effect-of-coded-healing-abutments-on-treatment-duration-and-clinical-outcome-a-randomized-controlled-clinical-trial-comparing-encode-and-conventional-impression-protocols
#12
Jaafar Abduo, Chen Chen, Eugene Le Breton, Alexandra Radu, Josephine Szeto, Roy Judge, Ivan Darby
PURPOSE: To compare the Encode impression protocol (Biomet 3i) with the conventional impression protocol in terms of treatment duration, clinical accuracy, and outcome up to the first postplacement review of single-implant crowns. MATERIALS AND METHODS: A total of 45 implants were included in this study. The implants were randomly allocated to the Encode group (23 implants) or the conventional group (22 implants). At the time of surgery, all implants received two-piece Encode healing abutments...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28325569/transcatheter-aortic-valve-implantation-in-patients-with-advanced-chronic-kidney-disease
#13
Federico Conrotto, Stefano Salizzoni, Alessandro Andreis, Fabrizio D'Ascenzo, Augusto D'Onofrio, Marco Agrifoglio, Alaide Chieffo, Antonio Colombo, Filippo Rapetto, Francesco Santini, Giuseppe Tarantini, Davide Gabbieri, Carlo Savini, Sebastiano Immè, Flavio Ribichini, Orazio Valsecchi, Marco Aiello, Giovanni Lixi, Alessandro Iadanza, Esmeralda Pompei, Miroslava Stolcova, Diego Ornaghi, Alessandro Minati, Mauro Cassese, Gian Luca Martinelli, Pierluigi Sbarra, Andrea Agostinelli, Andrea Audo, Andrea Pieroni, Rosario Fiorilli, Gino Gerosa, Mauro Rinaldi, Fiorenzo Gaita
Advanced chronic kidney disease (CKD) is associated with poor outcomes in patients who underwent surgical aortic valve replacement, whereas its prognostic role in transcatheter aortic valve implantation (TAVI) remains unclear. This study aimed to investigate outcomes in patients with advanced CKD who underwent TAVI. A total of 1,904 consecutive patients who underwent balloon-expandable TAVI in 33 centers between 2007 and 2012 were enrolled in the Italian Transcatheter Balloon-Expandable Valve Implantation Registry...
May 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28322680/porcelain-heart-in-a-uremic-patient
#14
Hsiu-Chien Yang, Chang-Han Lo, Chun-Chi Chen, Chia-Chao Wu
No abstract text is available yet for this article.
March 2017: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/28319213/comparison-of-the-marginal-fit-of-cobalt-chromium-metal-ceramic-crowns-fabricated-by-cad-cam-techniques-and-conventional-methods-at-three-production-stages
#15
Francisco Real-Voltas, Elisabeth Romano-Cardozo, Oscar Figueras-Alvarez, Magi Brufau-de Barbera, Josep Cabratosa-Termes
PURPOSE: The aim of this study was to compare the marginal fit of cobalt-chromium crowns fabricated using conventional casts and computer-aided design/computer-assisted manufacturing (CAD/CAM) techniques at three stages of production: metal coping, after porcelain firing, and after cementation. MATERIALS AND METHODS: A total of 80 metal-ceramic crowns were fabricated using four different techniques: lost wax casting, milling, laser sintering, and milling of a presintered metal block...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28318645/comparison-of-survivability-of-staphylococcus-aureus-and-spores-of-aspergillus-niger-on-commonly-used-floor-materials
#16
Mridula Gupta, Michael Bisesi, Jiyoung Lee
BACKGROUND: The survivability of Staphylococcus aureus and spores of Aspergillus niger was compared on 5 common floor materials. METHODS: Floor materials were inoculated with a known concentration of S aureus and spores of A niger on day 0. Their survivability was measured on days, 2, 7, 14, and 28 by bulk rinsate method and enumerated using culture-based method. RESULTS: The difference in change of S aureus levels was statistically significant for all tested days (P < ...
March 17, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28280760/the-shear-bond-strength-of-porcelain-laminate-to-prepared-and-unprepared-anterior-teeth
#17
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
#18
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/28279436/characterisation-of-nanovoiding-in-dental-porcelain-using-small-angle-neutron-scattering-and-transmission-electron-microscopy
#19
Alexander Lunt, Ann Terry, Siqi Ying, Nikolaos Baimpas, Tan Sui, Saurabh Kabra, Joe Kelleher, Stephen King, Neo Tee Khin, Alexander M Korsunsky
OBJECTIVES: Recent studies of the yttria partially stabilised zirconia-porcelain interface have revealed the presence of near-interface porcelain nanovoiding which reduces toughness and leads to component failure. One potential explanation for these nanoscale features is thermal creep which is induced by the combination of the residual stresses at the interface and sintering temperatures applied during manufacture. The present study provides improved understanding of this important phenomenon...
March 6, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28274033/an-in-vitro-comparative-stereomicroscopic-analysis-and-evaluation-of-marginal-accuracy-in-porcelain-fused-to-metal-copings-fabricated-in-two-different-finish-lines-using-variant-die-materials
#20
Priya L Vaswani, Pronob K Sanyal, Siddharth Y Gosavi, Abhijeet R Kore
INTRODUCTION: Limited published information is available about the influence of preparatory designs and die materials on marginal accuracy of porcelain fused to metal copings using recently developed die materials. AIM: To detect the influence of margin geometries and dimensional accuracy of contemporary die materials on vertical marginal gaps in Porcelain fused to metal coping using a Stereomicroscope (three dimensional analysis). MATERIALS AND METHOD: Two chrome cobalt alloy models of mandibular first molars prepared to have shoulder and deep chamfer finish lines were CAD-CAM milled...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
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