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Dental Material AND Ceramic

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https://read.qxmd.com/read/30761225/comparative-analysis-of-microleakage-of-zirconia-infused-glass-ionomer-cement-with-miracle-mix-and-amalgam-an-in-vitro-study
#1
Eeraveni Ranadheer, Utsav D Shah, Kiran Kumar Neelakantappa, Shoba Fernandes
Context Various restorative materials are introduced in dentistry to achieve adequate strength and restore aesthetics. Dental amalgam is a versatile material with self-sealing property, but is unaesthetic. Other restorative materials like composites require conservative preparation, but exhibit polymerisation shrinkage resulting in microleakage. To overcome these drawbacks, a high strength restorative material reinforced with ceramic and zirconia fillers known as Zirconomer (Shofu Inc., Japan) has been introduced...
December 3, 2018: Curēus
https://read.qxmd.com/read/30758878/comparison-of-three-different-types-of-fixed-partial-implant-prosthesis-a-long-term-retrospective-study-of-clinical-outcomes-and-cost-effectiveness
#2
Andrea Ravidà, Mustafa Tattan, Houssam Askar, Shayan Barootchi, Lorenzo Tavelli, Hom-Lay Wang
OBJECTIVE: To study the performance of 2 to 3 posterior bone-level dental implants constructed with either 3 non-splinted crowns (NSC), 3 splinted crowns (SC), or a 3-unit fixed partial denture supported by 2 implants (FPD) MATERIAL AND METHODS: Patients treated with 3 metal-ceramic NSC, SC or a 3-unit FPD were included in the present retrospective study. Implant survival and success rate as well as all biological and technical complications were collected. The cost associated with each of the treatment options was evaluated in the comparative analysis...
February 13, 2019: Clinical Oral Implants Research
https://read.qxmd.com/read/30745748/efficacy-of-prostheses-bonding-using-silane-incorporated-to-universal-adhesives-or-applied-separately-a-systematic-review
#3
REVIEW
Laércio Almeida De Melo, Ilnara De Souza Moura, Erika Oliveira De Almeida, Amilcar Chagas Freitas Junior, Tasiana Guedes De Souza Dias, Fabíola Pessoa Pereira Leite
Currently, the long-term success of esthetic rehabilitation with ceramics is required. Hence, professional knowledge about the most indicated dental material for each clinical situation as well as its usage protocol is essential. The aim of this systematic review of clinical and laboratorial studies was to compare the bond strength of prostheses using silane incorporated to universal adhesives or applied separately. The literature search in databases "Cochrane Library," "MEDLINE," "Web of Science," "Scopus," "LILACS," "Scielo," and "Google Scholar" was based on the keywords "Silane;" "Silanes;" "Silane coupling agent;" "Universal adhesive;" and "Universal adhesives...
January 2019: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/30733844/effectiveness-of-current-adhesive-systems-when-bonding-to-cad-cam-indirect-resin-materials-a-review-of-32-publications
#4
REVIEW
Atsushi Mine, Tomoshige Kabetani, Asuka Kawaguchi-Uemura, Mami Higashi, Yuko Tajiri, Ryosuke Hagino, Dai Imai, Masahiro Yumitate, Shintaro Ban, Mariko Matsumoto, Hirofumi Yatani
The purpose of this review was to assess the available literature regarding bonding between current adhesive systems and computer-aided design/computer-aided manufacturing (CAD/CAM) indirect resin materials, to provide clinicians with a comparative overview of the relevant bonding procedures. An electronic search was performed through PubMed based on the keywords CAD/CAM and dental bonding. Additional relevant literature was obtained from the citations in the articles. A total of 313 papers were identified, of which 281 were excluded as being unsuitable, and an additional 3 papers were identified, giving a total of 32 articles that are included in this review...
November 2019: Japanese Dental Science Review
https://read.qxmd.com/read/30720770/fabrication-and-microstructure-of-laminated-hap%C3%A2-45s5-bioglass-ceramics-by-spark-plasma-sintering
#5
Ye Meng, Wenjiang Qiang, Jingqin Pang
Hydroxyapatite (HAP) has excellent biocompatibility with living bone tissue and does not cause defensive body reactions, therefore, it has become one of the most widely used calcium phosphate materials in dental and medical fields. However, its poor mechanical properties have been a substantial challenge in the application of HAP for the replacement of load-bearing or large bone defects. Laminated HAP⁻45S5 bioglass ceramics composites were prepared by the spark plasma sintering (SPS) technique. The interface structures between the HAP and 45S5 bioglass layers and the mechanical properties of the laminated composites were investigated...
February 4, 2019: Materials
https://read.qxmd.com/read/30713186/effect-of-type-ii-diabetes-mellitus-candida-albicans-and-streptococcus-mutans-on-the-biofilm-formation-on-prosthetic-materials
#6
Shagun Gulia, Vinaya Bhatt, Manoj Shetty, Krishna D Prasad, Prateek Gupta
AIM: To investigate the biofilm formation on Prosthetic materials as affected by type II diabetes mellitus, Candida albicans and Streptococcus mutans. MATERIALS AND METHODS: Two types of saliva, natural saliva, and artificial saliva were collected and prepared respectively. The natural saliva was divided into diabetic and non-diabetic saliva. The artificial saliva was further divided into two groups, one inoculated with Streptococcus mutans and the second with Candida albicans...
December 1, 2018: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/30711291/influence-of-thermomechanical-fatigue-on-the-fracture-strength-of-cad-cam-fabricated-occlusal-veneers
#7
Majed Al-Akhali, Matthias Kern, Adham Elsayed, Abdulaziz Samran, Mohamed Sad Chaar
STATEMENT OF PROBLEM: With the development of new computer-aided design and computer-aided manufacturing (CAD-CAM) restorative dental materials, limited data regarding their survival rate and fracture strength are available when they are used as occlusal veneers. Therefore, these materials should be evaluated under conditions similar to those of the oral environment before being recommended for clinical use. PURPOSE: To evaluate the influence of thermomechanical fatigue loading on the fracture strength of minimally invasive occlusal veneer restorations fabricated from different CAD-CAM materials and bonded to human maxillary premolars using self-etchnig bonding technique...
January 30, 2019: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/30704750/long-term-elution-of-monomers-from-resin-based-dental-composites
#8
Eveline Putzeys, Siemon De Nys, Stevan M Cokic, Radu Corneliu Duca, Jeroen Vanoirbeek, Lode Godderis, Bart Van Meerbeek, Kirsten L Van Landuyt
OBJECTIVE: To bridge the gap between the current alarming literature on resin-based dental materials and the limited clinical observations, more precise knowledge on the actual quantity of released compounds should be acquired. The objective of this study was to quantify the long-term elution of various compounds from resin-based dental composites during one year. METHODS: Eight materials were investigated: G-aenial Anterior, G-aenial Posterior, Venus, Venus Pearl, Venus Diamond, Ceram X mono, Dyract and Filtek Supreme XTE...
January 28, 2019: Dental Materials: Official Publication of the Academy of Dental Materials
https://read.qxmd.com/read/30685728/wear-of-ceramic-based-dental-materials
#9
Oscar Borrero-Lopez, Fernando Guiberteau, Yu Zhang, Brian R Lawn
An investigation is made of wear mechanisms in a suite of dental materials with a ceramic component and tooth enamel using a laboratory test that simulates clinically observable wear facets. A ball-on-3-specimen wear tester in a tetrahedral configuration with a rotating hard antagonist zirconia sphere is used to produce circular wear scars on polished surfaces of dental materials in artificial saliva. Images of the wear scars enable interpretation of wear mechanisms, and measurements of scar dimensions quantify wear rates...
January 12, 2019: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/30660029/response-of-pre-crystallized-cad-cam-zirconia-reinforced-lithium-silicate-glass-ceramic-to-cyclic-nanoindentation
#10
Gabriella A C Springall, Ling Yin
This paper reports on a cyclic nanoindentation approach of a pre-crystallized zirconia-reinforced lithium silicate glass ceramic (ZLS) to understand its material behavior associated with its machinability in dental CAD/CAM diamond abrasive milling. The material response to the cyclic nanoindentation using a Berkovich diamond tip was quantitatively determined in terms of the indentation contact hardness, elastic modulus, elasticity and plasticity for each loading cycle at peak loads of 2.5-10 mN. The cyclic load-displacement curves at different load levels indicate discrete discontinuities and hysteresis loops, which might have arisen from viscoelasticity behavior...
January 10, 2019: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/30630385/epithelial-cell-functionality-on-electroconductive-fe-sr-co-doped-biphasic-calcium-phosphate
#11
Subhadip Basu, Aritri Ghosh, Ananya Barui, Bikramjit Basu
In the perspective of dental restorative applications, co-doped bioceramics have not been explored much. From the clinical perspective, a successful dental implant is expected to interact with peri-prosthetic bones, gingival tissue, and surrounding connective tissues. The interaction of implant and implant coating materials with bone tissue is well studied. However, their interaction with surrounding epithelial components needs scientific validation. In this context, the present study aims at quantitative evaluation of the electrical properties of Fe/Sr co-doped biphasic calcium phosphate (BCP) samples and assessment of their cytocompatibility with epithelial (vero) cells...
January 10, 2019: Journal of Biomaterials Applications
https://read.qxmd.com/read/30612838/impact-of-surface-contamination-of-implants-with-saliva-during-placement-in-augmented-bone-defects-in-sheep-calvaria
#12
Y Jinno, R Jimbo, J Hjalmarsson, K Johansson, A Stavropoulos, J P Becktor
Our aim was to try and find out whether contamination with saliva during insertion of dental implants affects osseointegration in bone that has been augmented with different grafts. Six bony defects were created in each of the calvaria of six sheep, and then augmented with three different materials (autogenous bone, bovine bone, and resorbable biphasic ceramic bone substitute) After five weeks of healing, three implants contaminated with saliva (contaminated group) and three not contaminated (uncontaminated group) were placed in the centre of the augmented areas...
January 3, 2019: British Journal of Oral & Maxillofacial Surgery
https://read.qxmd.com/read/30607201/the-success-of-dental-veneers-according-to-preparation-design-and-material-type
#13
REVIEW
Yousef Alothman, Maryam Saleh Bamasoud
BACKGROUND: Due to their high aesthetic outcome and long-term predictability, laminate veneers have become a common restorative procedure for anterior teeth. However, because of the variety in the preparation designs and the material types, the clinician faces a dilemma of which approach to use. AIM: To compare the survival rate of dental veneers according to different preparation designs and different material types. The sub-aim is to reach a favourable preparation design and material based on scientific evidence...
December 20, 2018: Open Access Macedonian Journal of Medical Sciences
https://read.qxmd.com/read/30598403/effect-of-indirect-restorative-material-and-thickness-on-light-transmission-at-different-wavelengths
#14
Rafael Rocha Pacheco, Adriana Oliveira Carvalho, Carolina Bosso André, Ana Paula Almeida Ayres, Renata Bacelar Catanhede de Sá, Tiago Monteiro Dias, Frederick Allen Rueggeberg, Marcelo Giannini
PURPOSE: The aim of this study was to evaluate the influence of indirect restorative material type and thickness on the transmission of different wavelengths from a broad-banded dental curing light. METHODS: Four dental indirect restorative materials for computer-aided design and computer-aided manufacturing (CAD/CAM) were evaluated: [RC] resin/ceramic hybrid material (Lava Ultimate), [FC] feldspathic ceramic (VitaBlocs), and two zirconia-based ceramics ([ZK] Katana; and [ZL] Lava)...
December 28, 2018: Journal of Prosthodontic Research
https://read.qxmd.com/read/30589001/clinical-evaluation-of-differences-in-proximal-contact-strength-of-various-fixed-dental-prosthesis-materials
#15
N Gopi Chander, Arnob Biswas
Objective: The study compared the proximal contact strength (CS) of different fixed dental prosthesis (FDP) materials. Materials and Methods: Thirty volunteers participated in this study with definitive inclusion and exclusion criteria. Participants were divided into full metal, zirconia, and metal ceramic groups. The CS between the natural teeth and the maxillary posterior quadrant FDP was measured with force gauge. The data were evaluated with one-way analysis of variance test, and Tukey's honest significant difference post hoc was done to compare the mean values...
November 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://read.qxmd.com/read/30580981/effect-of-hydrothermal-aging-on-the-optical-properties-of-precolored-dental-monolithic-zirconia-ceramics
#16
Hee-Kyung Kim, Sung-Hun Kim
STATEMENT OF PROBLEM: The long-term color stability of precolored monolithic zirconia has not been thoroughly investigated. PURPOSE: The purpose of this in vitro study was to evaluate the effect of hydrothermal aging on the optical properties, phase transformation, and surface topography of precolored monolithic zirconia ceramics. MATERIAL AND METHODS: Precolored monolithic zirconia specimens (17.0×17.0×1.5 mm, n=50) and lithium disilicate glass-ceramic specimens (16...
December 20, 2018: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/30579109/lithium-disilicate-glass-ceramic-vs-translucent-zirconia-polycrystals-bonded-to-distinct-substrates-fatigue-failure-load-number-of-cycles-for-failure-survival-rates-and-stress-distribution
#17
Gabriel Kalil Rocha Pereira, Priscila Graunke, Angélica Maroli, Camila Pauleski Zucuni, Catina Prochnow, Luiz Felipe Valandro, Ricardo Armini Caldas, Atais Bacchi
The present study evaluated the fatigue behavior of monolithic translucent zirconia polycrystals (TZ) and lithium disilicate glass-ceramic (LD) bonded to different substrates. Disc-shaped specimens of ceramic materials TZ and LD were bonded to three substrates with different elastic modulus (E) (fiber-reinforced composite (FRC) - softest material, E = 14.9 GPa; titanium alloy (Ti) - intermediary properties, E = 115 GPa; and zirconia (Yz) - stiffest material, E = 210 GPa). The surfaces were treated and bonded with resin cement (disc-disc set-up)...
December 12, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/30564796/nonretentive-bonded-ceramic-partial-crowns-concept-and-simplified-protocol-for-long-lasting-dental-restorations
#18
Gianfranco Politano, Bart Van Meerbeek, Marleen Peumans
PURPOSE: Adhesively luted partial ceramic crowns have been documented to be clinically more durable than direct composite restorations when minimally invasively restoring large defects (replacing two cusps or more) in posterior teeth. The clinical longevity of such restorations is largely determined by the tooth-preparation design, material selection and adhesive luting procedure. The most frequently recorded failure in medium- to long-term clinical trials is fracture of the restoration...
2018: Journal of Adhesive Dentistry
https://read.qxmd.com/read/30541995/wear-properties-of-esthetic-dental-materials-against-translucent-zirconia
#19
Shota Hayashi, Shinya Homma, Takuya Takanashi, Tomoki Hirano, Masao Yoshinari, Yasutomo Yajima
To clarify the influence of translucent tetragonal zirconia polycrystals (TZP) on wear properties of esthetic dental materials, twobody wear test was performed using translucent TZP as abrader specimen, and bovine tooth enamel (BTE), two resin composites including hybrid filler (CRH) and nano filler (CRN), two glass ceramics including leucite reinforced feldspar porcelain (POR) and lithium disilicate (LDC), or translucent TZP as substrate specimen. After the wear test, wear volume were determined from substrate specimen and surface roughness were measured from abrader specimen...
December 11, 2018: Dental Materials Journal
https://read.qxmd.com/read/30534817/osseointegration-of-zirconium-dental-implants-three-months-after-insertion-in-rabbit-femur-histopathological-study
#20
Bogdan Andrei Bumbu, Gheorghe Adrian Bumbu, Mihail Claudius Berechet, Vasile Rus, Flavia Ruxanda, Viorel Miclăuş, Răzvan Marius Vicaş, Doina Iulia Rotaru, Mihaela Mirela Zdrîncă, Camelia Florentina Ciobanu, Diana Berechet
Implantology is a highly researched field with a constant concern in finding and studying new implant materials. Lately, zirconium has become a very attractive alternative to the detriment of titanium, but the research results were sometimes contradictory. Thus, we considered as opportune to study the osseointegration of zirconium dental implants in rabbit femur, three months after insertion. The biological material was represented by five rabbits and the experimental protocol was approved by the Ethics Committee of the University of Oradea, Romania...
2018: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
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