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https://www.readbyqxmd.com/read/28437366/the-impact-of-residual-subgingival-cement-on-biological-complications-around-dental-implants-a-systematic-review
#1
Alessandro Quaranta, Zhuo Wei Lim, Joyce Tang, Vittoria Perrotti, Jonathan Leichter
OBJECTIVES: To perform a systematic review on the impact of residual subgingival cement on peri-implant diseases and crestal bone loss. MATERIAL AND METHODS: MEDLINE, SCOPUS, ISI Web of Knowledge and Cochrane Central Register of Controlled Trials (CENTRAL) databases were used to identify articles published without time limits. RESULTS: A total of 6 articles were selected for a total of 389 patients (687 implants). The studies were heterogeneous and had a moderate-to-high risk of bias, but met the inclusion criteria...
April 21, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28434679/effect-of-fabrication-stages-and-cementation-on-the-marginal-fit-of-cad-cam-monolithic-zirconia-crowns
#2
Ediz Kale, Burak Yilmaz, Emre Seker, Tuncer Burak Özcelik
STATEMENT OF PROBLEM: Monolithic zirconia crowns fabricated using computer-aided design and computer-aided manufacturing (CAD-CAM) technology have recently become an alternative dental prosthetic treatment. The marginal fit of monolithic zirconia crown may be affected by different stages of the fabrication procedures in the laboratory and cementation. Information regarding the accuracy of fit of monolithic zirconia crowns at different stages of fabrication and cementation is limited. PURPOSE: The purpose of this in vitro study was to evaluate the effect of different stages of fabrication and cementation on the vertical marginal discrepancy (VMD) of CAD-CAM fabricated monolithic zirconia crowns...
April 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28416317/zinc-oxide-inhibits-dental-discoloration-caused-by-white-mineral-trioxide-aggregate-angelus
#3
Marina Angélica Marciano, Josette Camilleri, Reginaldo Mendonça Costa, Mariza Akemi Matsumoto, Bruno Martini Guimarães, Marco Antonio Hungaro Duarte
INTRODUCTION: The aim of the study was to investigate the addition of variable amounts of zinc oxide to inhibit dental discoloration caused by mineral trioxide aggregate (MTA) Angelus. METHODS: MTA Angelus and MTA with additions of 5%, 15%, and 45% zinc oxide (ZnO) in weight were tested. The set cements were characterized by using a combination of scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. Radiopacity and setting time were analyzed according to American National Standards Institute/American Dental Association (57/2012) and American Society for Testing and Materials (C266-08)...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28415545/engineering-bone-regeneration-with-novel-cell-laden-hydrogel-microfiber-injectable-calcium-phosphate-scaffold
#4
Yang Song, Chi Zhang, Ping Wang, Lin Wang, Chunyun Bao, Michael D Weir, Mark A Reynolds, Ke Ren, Liang Zhao, Hockin H K Xu
Cell-based tissue engineering is promising to create living functional tissues for bone regeneration. The implanted cells should be evenly distributed in the scaffold, be fast-released to the defect and maintain high viability in order to actively participate in the regenerative process. Herein, we report an injectable calcium phosphate cement (CPC) scaffold containing cell-encapsulating hydrogel microfibers with desirable degradability that could deliver cells in a timely manner and maintain cell viability...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415511/facile-synthesis-and-characterization-of-novel-rapid-setting-spherical-sub-micron-bioactive-glasses-cements-and-their-biocompatibility-in-vitro
#5
Yuli Li, Qiming Liang, Cai Lin, Xian Li, Xiaofeng Chen, Qing Hu
Dental pulp vitality is extremely important for the tooth viability, since it provides nutrition and forms the dentin. Bioactive glasses (BGs) may be promising materials for pulp repair due to their excellent abilities of rapidly bonding to bone and stimulating new bone growth. However, the unsatisfied handling property, low plasticity, and poor rapid-setting property of traditional BGs limit its application in vital pulp therapy. Spherical bioactive glasses (SBGs) exhibited higher osteogenesis and odontogenic differentiation than irregular BGs...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28403365/crown-discoloration-promoted-by-materials-used-in-regenerative-endodontic-procedures-and-effect-of-dental-bleaching-spectrophotometric-analysis
#6
Luciane Geanini Pena Dos Santos, Wilson Tadeu Felippe, Beatriz Dulcineia Mendes de Souza, Andrea Cristina Konrath, Mabel Mariela Rodríguez Cordeiro, Mara Cristina Santos Felippe
Objectives: To assess tooth crown's color after intracanal treatment with triple antibiotic paste (TAP) or calcium hydroxide (CH); cervical sealing with glass ionomer cement (GIC) or mineral trioxide aggregate (MTA); and bleaching with carbamide peroxide. Material and Methods: After pulp removal and color spectrophotometer measurement, 50 bovine incisors were divided into 4 experimental groups and one control (untreated). Experiments were performed in phases (Ph)...
March 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28403360/influence-of-resin-modified-glass-ionomer-and-topical-fluoride-on-levels-of-streptococcus-mutans-in-saliva-and-biofilm-adjacent-to-metallic-brackets
#7
Marcela Cristina Damião Andrucioli, Gisele Faria, Paulo Nelson-Filho, Fábio Lourenço Romano, Mírian Aiko Nakane Matsumoto
Decalcification of enamel during fixed orthodontic appliance treatment remains a problem. White spot lesions are observed in nearly 50% of patients undergoing orthodontic treatment. The use of fluoride-containing orthodontic materials has shown inconclusive results on their ability to reduce decalcification. The aims of this investigation were to compare the levels of Streptococcus mutans (SM) in saliva and biofilm adjacent to orthodontic brackets retained with a resin-modified glass ionomer cement (RMGIC) (Fuji ORTHO LC) and a light cured composite resin (Transbond XT), and to analyze the influence of topical application of the 1...
March 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28393821/spectrophotometric-analysis-of-crown-discoloration-induced-by-two-different-sealers-an-in-vitro-study
#8
Rashmi Keshav Chahande, Sanjay S Patil, Vandana Gade, Rishikesh Meshram, Deepika J Chandhok, Deepa A Thakur
CONTEXT: Endodontic materials have been assessed with regards to their potential for dental staining. AIMS: To evaluate the coronal discoloration effect of Apexit Plus and Resino Seal in mandibular premolars using spectrophotometer. SETTINGS AND DESIGN: The study design was original research. MATERIALS AND METHODS: Forty human single-rooted mandibular first premolar teeth were selected for the study. They were divided into four groups of ten specimens each...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28385447/a-simplified-method-for-evaluating-the-3-dimensional-cement-space-of-dental-prostheses-by-using-a-digital-scanner
#9
Hyeonjong Lee, Hyeong-Seob Kim, Kwantae Noh, Janghyun Paek, Ahran Pae
Evaluating the cement space of various dental prostheses is important because it is related to the stability and retention of the prosthesis. However, a method for evaluating an overall cement space is complex. The purpose of this technique was to simplify the evaluation of prosthesis cement space by using a digital scanner. The form and thickness of the cement space could be simply recognized in any section the clinician or dental researcher wishes. Moreover, the cement space of several dental prostheses for the same abutment could also be precisely evaluated by superimposition...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385443/effectiveness-of-high-power-leds-to-polymerize-resin-cements-through-ceramics-an-in%C3%A2-vitro-study
#10
André L Faria-E-Silva, Carmem S Pfeifer
STATEMENT OF PROBLEM: The cementation of ceramic veneers using light-polymerized resin cement is largely dependent on the proper light activation of the cement. Light activation using high irradiance could shorten the time required to lute multiple restorations. PURPOSE: The purpose of this in vitro study was to evaluate the light transmission of dental light-polymerizing units through ceramic cylinders and its effect on the polymerization kinetics of a resin cement...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385429/a-meta-analysis-of-retention-systems-for-implant-supported-prostheses-in-partially-edentulous-jaws
#11
REVIEW
Murali Ramamoorthi, Aparna Narvekar, Shahrokh Esfandiari
STATEMENT OF PROBLEM: Choosing an appropriate retention system for patients with partial edentulism and dental implants is impeded by a paucity of evidence. The available evidence is extrapolated from either completely edentulous or mixed study populations. PURPOSE: The purpose of this systematic review was to assess the effects of different retention systems used for implant-supported prostheses in patients with partially edentulous jaws by measuring the rates of failure, survival, and event-free situations...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28377656/a-comparative-evaluation-of-sorption-solubility-and-compressive-strength-of-three-different-glass-ionomer-cements-in-artificial-saliva-an-in-vitro-study
#12
Hind P Bhatia, Shivani Singh, Shveta Sood, Naresh Sharma
AIM: To evaluate and compare the sorption, solubility, and compressive strength of three different glass ionomer cements in artificial saliva - type IX glass ionomer cement, silver-reinforced glass ionomer cement, and zirconia-reinforced glass ionomer cement, so as to determine the material of choice for stress-bearing areas. MATERIALS AND METHODS: A total of 90 cylindrical specimens (4 mm diameter and 6 mm height) were prepared for each material following the manufacturer's instructions...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28365541/fracture-strength-and-probability-of-survival-of-narrow-and-extra-narrow-dental-implants-after-fatigue-testing-in-vitro-and-in-silico-analysis
#13
Dimorvan Bordin, Edmara T P Bergamo, Vinicius P Fardin, Paulo G Coelho, Estevam A Bonfante
PURPOSE: To assess the probability of survival (reliability) and failure modes of narrow implants with different diameters. MATERIALS AND METHODS: For fatigue testing, 42 implants with the same macrogeometry and internal conical connection were divided, according to diameter, as follows: narrow (Ø3.3×10mm) and extra-narrow (Ø2.9×10mm) (21 per group). Identical abutments were torqued to the implants and standardized maxillary incisor crowns were cemented and subjected to step-stress accelerated life testing (SSALT) in water...
March 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28342006/potential-synergistic-effects-of-a-mixture-of-mineral-trioxide-aggregate-mta-cement-and-bacillus-subtilis-in-dental-caries-treatment
#14
Shunya Oka
Bacillus subtilis is nonpathogenic in humans and produces a number of useful substances and, therefore, this bacterium is used in probiotic therapy. There have been trials of B. subtilis for patients with periodontitis, but not for patients with caries. Similarly, mineral trioxide aggregate (MTA) cement has been widely used for endodontic treatment, but there are few reports of its use for caries. Therefore, examinations were performed regarding the benefits of addition of B. subtilis to MTA cement for treatment of dental caries...
March 24, 2017: Odontology
https://www.readbyqxmd.com/read/28336976/the-hall-technique-10-years-on-questions-and-answers
#15
N P T Innes, D J P Evans, C C Bonifacio, M Geneser, D Hesse, M Heimer, M Kanellis, V Machiulskiene, J Narbutaité, I C Olegário, A Owais, M P Araujo, D P Raggio, C Splieth, E van Amerongen, K Weber-Gasparoni, R M Santamaria
It is ten years since the first paper on the Hall Technique was published in the British Dental Journal and almost 20 years since the technique first came to notice. Dr Norna Hall a (now retired) general dental practitioner from the north of Scotland had, for many years, been managing carious primary molar teeth by cementing preformed metal crowns over them, with no local anaesthesia, tooth preparation or carious tissue removal. This first report, a retrospective analysis of Dr Hall's treatments, caused controversy...
March 24, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28326699/-influence-of-surface-roughness-on-oral-streptococcal-adhesion-forces-to-dental-filling-materials
#16
Zheng Sainan, Jiang Li, Zhang Lei, Hao Liying, Ye Lu, Li Wei
OBJECTIVE: This study is to determine the common oral streptococcal adhesion forces by using composite resin and glass ionomer cement (GIC) with different degrees of surface roughness via atomic force microscopy (AFM) analysis. The influence of surface roughness on bacterial adhesion force is also discussed. METHODS: Polishing and grinding were applied to obtain 300, 200, 100, and 10 nm surfaces of light-cured composite resin and GIC samples. Surface topography was assessed by AFM analysis...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28320562/microstructural-characterization-of-dental-zinc-phosphate-cements-using-combined-small-angle-neutron-scattering-and-microfocus-x-ray-computed-tomography
#17
Alberto Viani, Konstantinos Sotiriadis, Ivana Kumpová, Lucia Mancini, Marie-Sousai Appavou
OBJECTIVE: To characterize the microstructure of two zinc phosphate cement formulations in order to investigate the role of liquid/solid ratio and composition of powder component, on the developed porosity and, consequently, on compressive strength. METHODS: X-ray powder diffraction with the Rietveld method was used to study the phase composition of zinc oxide powder and cements. Powder component and cement microstructure were investigated with scanning electron microscopy...
February 17, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28320540/effect-of-using-different-vehicles-on-the-physicochemical-antimicrobial-and-biological-properties-of-white-mineral-trioxide-aggregate
#18
Bruno Cavalini Cavenago, Aldo Enrique Del Carpio-Perochena, Ronald Ordinola-Zapata, Carlos Estrela, Gustavo Pompermaier Garlet, Mario Tanomaru-Filho, Paulo Henrique Weckwerth, Flaviana Bombarda de Andrade, Marco Antonio Hungaro Duarte
INTRODUCTION: This study evaluated the physicochemical, antimicrobial, and biological properties of white mineral trioxide aggregate (MTA) mixed with aqueous and propylene glycol extracts of Arctium lappa L. and Casearia sylvestris Sw. METHODS: The setting-time test was performed according to American Society for Testing and Materials 266/2008 and flowability by American National Standards Institute/American Dental Association 57/2012 standard specifications. The following parameters were assessed: volumetric change by micro-computed tomography; pH level and calcium ion release measured after 3 hours and 1, 3, 7, and 15 days; antimicrobial effect by the dentin decontamination method with intratubular Enterococcus faecalis viability, verified by using confocal laser scanning microscopy; and biocompatibility by histologic-morphometric analyses of inflammatory infiltrate at subcutaneous implant sites after 15, 30, and 60 days...
March 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28301020/cytotoxicity-and-bioactivity-of-calcium-silicate-cements-combined-with-niobium-oxide-in-different-cell-lines
#19
Leticia Boldrin Mestieri, Ana Lívia Gomes-Cornélio, Elisandra Márcia Rodrigues, Gisele Faria, Juliane Maria Guerreiro-Tanomaru, Mário Tanomaru-Filho
The aim of this study was to evaluate the cytotoxicity and bioactivity of calcium silicate-based cements combined with niobium oxide (Nb2O5) micro and nanoparticles, comparing the response in different cell lines. This evaluation used four cell lines: two primary cultures (human dental pulp cells - hDPCs and human dental follicle cells - hDFCs) and two immortalized cultures (human osteoblast-like cells - Saos-2 and mouse periodontal ligament cells - mPDL). The tested materials were: White Portland Cement (PC), mineral trioxide aggregate (MTA), white Portland cement combined with microparticles (PC/Nb2O5µ) or nanoparticles (PC/Nb2O5n) of niobium oxide (Nb2O5)...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28298987/effect-of-different-concentrations-of-specific-inhibitor-of-matrix-metalloproteinases-on-the-shear-bond-strength-of-self-adhesive-resin-cements-to-dentin
#20
Mohammad-Esmaeel Ebrahimi-Chaharom, Mehdi Abed-Kahnamoui, Mahmoud Bahari, Hamed Hamishehkar, Mahya Gharouni
BACKGROUND: Considering the probability of chemical and enzymatic reactions between matrix metalloproteinases (MMPs) in the dentin structure and their specific inhibitors, the aim of the present study was to evaluate the effect of different concentrations of specific inhibitor of MMPs (galardin) on the shear bond strength of self-adhesive resin cements to dentin. MATERIAL AND METHODS: Forty-eight sound human premolars were mounted in self-cured acrylic resin after removal of the enamel on the buccal and lingual surfaces...
March 2017: Journal of Clinical and Experimental Dentistry
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