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https://www.readbyqxmd.com/read/29898057/glass-ionomer-cements-can-be-used-for-bonding-orthodontic-brackets-after-cancer-radiation-treatment
#1
Gabriela Cristina Santin, Alexandra Mussolino de Queiroz, Regina Guenka Palma-Dibb, Harley Francisco de Oliveira, Paulo Nelson Filho, Fábio Lourenço Romano
Patients undergoing radiotherapy treatment present more susceptibility to dental caries and the use of an orthodontic device increases this risk factor due to biofilm accumulation around the brackets. The objective of this study was to evaluate the shear bond strength to irradiated permanent teeth of orthodontic brackets bonded with conventional glass ionomer cement and resin-modified glass ionomer cement due to the fluoride release capacity of these materials. Ninety prepared human premolars were divided into 6 groups (n=15), according to the bonding material and use or not of radiation: CR: Transbond XT composite resin; RMGIC: Fuji Ortho LC conventional glass ionomer cement; GIC: Ketac Cem Easymix resin-modified glass ionomer cement...
March 2018: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29897351/midfacial-tissue-assessment-of-the-effect-of-amount-of-keratinized-mucosa-on-immediate-temporarization-of-fresh-socket-implants-8-year-follow-up
#2
Roberto Crespi, Paolo Capparé, Giovanni Crespi, Giorgio Gastaldi, Georgios E Romanos, Enrico Gherlone
The aim of the present study was to consider the long-term midfacial mucosal outcome around final prosthetic restorations on dental implants placed and loaded immediately after tooth extractions. A total of 42 patients requiring tooth extractions were recruited, and 142 teeth were extracted. Based on the amount of keratinized mucosa (KM), implants were categorized into group A (KM ≥ 2 mm; n = 61) or group B (KM < 2 mm; n = 62). In both groups, all patients received temporary prosthetic restorations immediately after the surgical procedure...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29890684/dental-resin-cements-the-influence-of-water-sorption-on-contraction-stress-changes-and-hydroscopic-expansion
#3
Grzegorz Sokolowski, Agata Szczesio, Kinga Bociong, Karolina Kaluzinska, Barbara Lapinska, Jerzy Sokolowski, Monika Domarecka, Monika Lukomska-Szymanska
Resin matrix dental materials undergo contraction and expansion changes due to polymerization and water absorption. Both phenomena deform resin-dentin bonding and influence the stress state in restored tooth structure in two opposite directions. The study tested three composite resin cements (Cement-It, NX3, Variolink Esthetic DC), three adhesive resin cements (Estecem, Multilink Automix, Panavia 2.0), and seven self-adhesive resin cements (Breeze, Calibra Universal, MaxCem Elite Chroma, Panavia SA Cement Plus, RelyX U200, SmartCem 2, and SpeedCEM Plus)...
June 8, 2018: Materials
https://www.readbyqxmd.com/read/29888732/effect-of-home-bleaching-on-surface-of-zinc-phosphate-cement-a-scanning-electron-microscopic-study
#4
S A AlZain
Context: The effect of home bleaching on surfaces of dental cements is controversial. Aim: The aim of this study was to microscopically evaluate and compare the effect of different concentrations of carbamide peroxide (CP) home bleaching agents on the surface of zinc phosphate cement. Materials and Methods: Forty 10 mm × 2 mm specimens of zinc phosphate cement were prepared following the manufacturer's directions. All specimens were immersed in artificial saliva at 37°C for 24 h...
June 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29885190/staged-dental-extraction-and-three-interim-prostheses-for-implants-based-rehabilitation-in-a-periodontally-compromised-subject
#5
Farhan Raza Khan, Rabia Ali
Studies have shown that the presence of advanced periodontal disease lowers the success of dental implants. The recommended approach for such cases is the delayed placement and delayed loading of implants. The present paper reports a case of a subject who presented with severe periodontally compromised dentition. Placement and early loading of 12 implants was done using a staged approach. Three different sets of fixed-type dental prostheses were employed in the interim period. The final prostheses were cement retained metallo-ceramic fixed bridge...
May 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29881829/occlusal-onlays-as-a-modern-treatment-concept-for-the-reconstruction-of-severely-worn-occlusal-surfaces
#6
Daniel Edelhoff, M Oliver Ahlers
According to the Fifth German Oral Health Study, the caries experience in the German population is declining sharply. The number of teeth still present at an advanced age has also increased significantly in recent decades. This shows a clear trend towards long-term tooth preservation - possibly with fixed dental prostheses - which is further supported by the possibility to place implants to increase the number of abutments. The pronounced decline in caries experience has given Germany a leading international position in terms of dental health...
2018: Quintessence International
https://www.readbyqxmd.com/read/29874642/the-effect-of-silver-diamine-fluoride-in-preventing-caries-in-the-primary-dentition-a-systematic-review-and-meta-analysis
#7
Branca Heloisa Oliveira, Anjana Rajendra, Analia Veitz-Keenan, Richard Niederman
OBJECTIVES: To investigate whether silver diamine fluoride (SDF) is effective in preventing new caries lesions in primary teeth when compared to placebo or active treatments. METHODS: Systematic review (CRD42016036963) of controlled clinical trials. Searches were performed in 9 electronic databases, 5 registers of ongoing trials, and reference lists of identified review articles. Two researchers carried out data extraction and quality appraisal independently. The primary outcome was the difference in caries increment (decayed, missing, and filled surfaces or teeth - dmfs or dmft) between SDF and control groups...
June 6, 2018: Caries Research
https://www.readbyqxmd.com/read/29865184/nanostructured-polymeric-materials-with-protein-repellent-and-anti-caries-properties-for-dental-applications
#8
REVIEW
Ning Zhang, Ke Zhang, Xianju Xie, Zixiang Dai, Zeqing Zhao, Satoshi Imazato, Yousif A Al-Dulaijan, Faisal D Al-Qarni, Michael D Weir, Mark A Reynolds, Yuxing Bai, Lin Wang, Hockin H K Xu
Dental caries is prevalent worldwide. Tooth cavity restorations cost more than $46 billion annually in the United States alone. The current generation of esthetic polymeric restorations have unsatisfactory failure rates. Replacing the failed restorations accounts for 50⁻70% of all the restorations. This article reviewed developments in producing a new generation of bioactive and therapeutic restorations. This includes: Protein-repellent and anti-caries polymeric dental composites, especially the use of 2-methacryloyloxyethyl phosphorylcholine (MPC) and dimethylaminododecyl methacrylate (DMAHDM); protein-repellent adhesives to greatly reduce biofilm acids; bioactive cements to inhibit tooth lesions; combining protein-repellency with antibacterial nanoparticles of silver; tooth surface coatings containing calcium phosphate nanoparticles for remineralization; therapeutic restorations to suppress periodontal pathogens; and long-term durability of bioactive and therapeutic dental polymers...
June 1, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29860327/glass-ionomer-open-exposure-gopex-versus-closed-exposure-of-palatally-impacted-canines-a-retrospective-study-of-treatment-outcome-and-orthodontists-preferences
#9
Julia Naoumova, Elmira Rahbar, Ken Hansen
Objectives: To investigate which surgical technique orthodontists prefer for exposing palatally impacted canines (PICs), and to compare closed exposure and glass-ionomer open exposure (GOPEX) with regard to pre- and post-surgical orthodontic variables. Materials and methods: A questionnaire with 19 questions and three cases visualising superficial, deep, or medial PICs was sent to 48 orthodontists working in a Swedish county. Sixty case records for patients with unilateral PICs from two centres were analysed; 30 patients having GOPEX (Centre A), and 30 undergoing closed exposure (Centre B)...
June 1, 2018: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29849967/influence-of-different-restorative-materials-on-the-stress-distribution-in-dental-implants
#10
Carlos-Eduardo Datte, João-Paulo-Mendes Tribst, Amanda-Maria-de Oliveira Dal Piva, Renato-Sussumu Nishioka, Marco-Antonio Bottino, Alexandre-Duarte M Evangelhista, Fabrício M de M Monteiro, Alexandre-Luiz-Souto Borges
Background: To assist clinicians in deciding the most suitable restorative materials to be used in the crowns and abutment in implant rehabilitation. Material and Methods: For finite element analysis (FEA), a regular morse taper implant was created using a computer aided design software. The implant was inserted at the bone model with 3 mm of exposed threads. An anatomic prosthesis representing a first maxillary molar was modeled and cemented on the solid abutment...
May 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29848856/electrical-shear-bonding-strength-reduction-of-resin-modified-glass-ionomercement-containing-ionic-liquid-concept-and-validation-of-a-smart-dental-cement-debonding-on-demand
#11
Noboru Kajimoto, Emi Uyama, Kazumitsu Sekine, Kenichi Hamada
With improvement of bonding strength of recent dental cement, it is difficult nowadays to remove restorations without excessive force or vibration to tooth, occasionally resulting in damage of dentin, enamel, and dental root. Therefore, "smart" dental cement indicating strong bonding and easy debonding-on-demand simultaneously is required. In this research, resin-modified glass-ionomer-cement containing an ionic-liquid, tris(2-hydroxyethyl)methylammonium methylsulfate was produced, and the shear bonding strength before and after direct current application were evaluated...
May 31, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/29846952/anterior-restoration-longevity-among-nursing-facility-residents-a-30-year-retrospective-study
#12
Tariq S Ghazal, Howard J Cowen, Daniel J Caplan
AIM: To assess factors influencing anterior dental restoration longevity among the institutionalized elderly. METHODS: Among a sample of Eastern Iowa nursing facility dental patients, one anterior restoration placed from 1985 to 2014 was selected at random from each subject. Kaplan-Meier survival curves were generated, with restoration failures defined as subsequent restorative codes involving the same surface; endodontic procedures; or extractions. Bivariate and multivariable Cox proportional hazards modeling were performed...
May 30, 2018: Special Care in Dentistry
https://www.readbyqxmd.com/read/29807060/10-year-randomized-trial-rct-of-zirconia-ceramic-and-metal-ceramic-fixed-dental-prostheses
#13
Irena Sailer, Marc Balmer, Jürg Hüsler, Christoph Hans Franz Hämmerle, Sarah Känel, Daniel Stefan Thoma
OBJECTIVES: to monitor zirconia-ceramic and metal-ceramic posterior FDPs with respect to survival and technical/biological complication rates. MATERIALS AND METHODS: Fifty-eight patients received 76 3- to 5-unit posterior FDPs. The sites were randomly assigned to 40 zirconia-based (ZC) and 36 metal-based (MC) FDPs. FDPs were examined at baseline (cementation), at 6 months, at 1 year and then yearly up to 10 years. Technical outcomes were assessed using modified United States Public Health Service (USPHS) criteria...
May 25, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29805040/secondary-sj%C3%A3-gren-syndrome-a-case-report-using-silver-diamine-fluoride-and-glass-ionomer-cement
#14
Douglas A Young, Annikka Frostad-Thomas, Jaana Gold, Allen Wong
BACKGROUND AND OVERVIEW: The authors describe dental treatment for a patient with a complex medical history of secondary Sjögren syndrome with systemic lupus erythematosus and rheumatoid arthritis. CASE DESCRIPTION: An 18-year-old woman's rheumatology group referred her for oral evaluation; she had secondary Sjögren syndrome, systemic lupus erythematosus, and rheumatoid arthritis. The patient had multiple advanced carious lesions, extreme sensitivity, and hyposalivation...
May 24, 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29801196/color-aspect-of-monolithic-zirconia-restorations-a-review-of-the-literature
#15
REVIEW
Farhad Tabatabaian
Monolithic zirconia restoration is an acceptable treatment option in restorative dentistry and a developing trend in esthetic dentistry. Digital dentistry has simplified fabrication of monolithic zirconia restorations. Zirconia ceramic has introduced an opportunity to achieve both esthetic and mechanical requirements for restorations. This is rarely found for a ceramic in dentistry. Monolithic zirconia restorations represent an acceptable durability, comparable to metal-ceramic restorations, while they are superior to metal-ceramic restorations esthetically; however, difficulties to gain an optimal shade reproduction and a color match with monolithic zirconia restorations still remain...
May 25, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29791690/impact-of-two-early-treatment-protocols-for-anterior-dental-crossbite-on-children-s-quality-of-life
#16
Cristina Batista Miamoto, Leandro Silva Marques, Lucas Guimarães Abreu, Saul Martins Paiva
OBJECTIVE: To assess the impact of two early treatment protocols for anterior dental crossbite on children's quality of life. METHODS: Thirty children, 8 to 10 years of age, with anterior dental crossbite, participated in this study. Individuals were divided into two groups: Group 1 - 15 children undergoing treatment with an upper removable appliance with digital springs; Group 2 - 15 children undergoing treatment with resin-reinforced glass ionomer cement bite pads on the lower first molars...
January 2018: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29787235/a-novel-fast-setting-mineral-trioxide-aggregate-its-formulation-chemical-physical-properties-and-cytocompatibility
#17
Song Chen, Liyang Shi, Jun Luo, Håkan Engqvist
One of the main drawbacks that limits the application of mineral trioxide aggregate in dental field is its long setting time. Mineral trioxide aggregate (MTA) with accelerated setting properties, excellent chemical-physical and biological properties is still required. In this study, an innovative mineral trioxide aggregate which consists of calcium silicates, calcium aluminates and zirconium oxide was designed to obtain fast-setting property. The optimized formulation can achieve initial setting in 10 min and final setting in 15 min, which are much faster than commercial mineral trioxide aggregate...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29783786/graphene-based-nanomaterials-for-tissue-engineering-in-the-dental-field
#18
REVIEW
Riccardo Guazzo, Chiara Gardin, Gloria Bellin, Luca Sbricoli, Letizia Ferroni, Francesco Saverio Ludovichetti, Adriano Piattelli, Iulian Antoniac, Eriberto Bressan, Barbara Zavan
The world of dentistry is approaching graphene-based nanomaterials as substitutes for tissue engineering. Apart from its exceptional mechanical strength, electrical conductivity and thermal stability, graphene and its derivatives can be functionalized with several bioactive molecules. They can also be incorporated into different scaffolds used in regenerative dentistry, generating nanocomposites with improved characteristics. This review presents the state of the art of graphene-based nanomaterial applications in the dental field...
May 20, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29782890/novel-dental-adhesive-resin-with-crack-self-healing-antimicrobial-and-remineralization-properties
#19
Shichao Yue, Junling Wu, Qiang Zhang, Ke Zhang, Michael D Weir, Satoshi Imazato, Yuxing Bai, Hockin H K Xu
OBJECTIVES: Secondary caries at the tooth-restoration margins is a primary reason for restoration failure. Cracks at the margins lead to leakage which can trap bacteria, producing acids to cause caries. To date, there has been no report on developing an adhesive resin that has self-healing, antibacterial and remineralizing capabilities. The objectives of this study were to: (1) develop the first self-healing adhesive with antimicrobial and remineralizing capabilities, and (2) investigate the effects of incorporating microcapsules, dimethylaminohexadecyl methacrylate (DMAHDM) and nanoparticles of amorphous calcium phosphate (NACP) for the first time...
May 18, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29781768/guided-bone-regeneration-and-implant-placement-in-association-with-a-coronally-positioned-palatal-sliding-flap-a-17-year-follow-up-case-report
#20
Carlo Maiorana, Pier Paolo Poli, Mario Beretta
The aim of the present case report was to show the 17-year hard and soft tissues stability of guided bone regeneration procedure associated with dental implants insertion. A 52-year-old male patient presented with a partial edentulism in the upper right maxilla. A graft consisting of deproteinized bovine bone mineral and autogenous bone stabilized by a non-resorbable expanded polytetrafluoroethylene membrane was used to reconstruct the missing bone applying the biological principles of guided bone regeneration...
May 21, 2018: Journal of Oral Implantology
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