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https://www.readbyqxmd.com/read/28077291/in-vitro-dentin-barrier-cytotoxicity-testing-of-some-dental-restorative-materials
#1
R D Jiang, H Lin, G Zheng, X M Zhang, Q Du, M Yang
OBJECTIVES: To investigate the cytotoxicity of four dental restorative materials in three-dimensional (3D) L929 cell cultures using a dentin barrier test. METHODS: The cytotoxicities of light-cured glass ionomer cement (Vitrebond), total-etching adhesive (GLUMA Bond5), and two self-etching adhesives (GLUMA Self Etch and Single Bond Universal) were evaluated. The permeabilities of human dentin disks with thicknesses of 300, 500, and 1000μm were standardized using a hydraulic device...
January 8, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28076496/evaluation-of-dentin-hypersensitivity-treatment-with-glass-ionomer-cements-a-randomized-clinical-trial
#2
Marina de Matos Madruga, Adriana Fernandes da Silva, Wellington Luiz de Oliveira da Rosa, Evandro Piva, Rafael Guerra Lund
A randomized, double-blind, split-mouth clinical trial was performed compared the desensitizing efficacy of the resin-modified glass ionomer cement (GIC) ClinproTM XT (3M ESPE, Minnesota, USA) and the conventional GIC Vidrion R (SS White, Gloucester, UK) in a 6-month follow-up. Subjects were required to have at least two teeth with dentin hypersensitivity. Teeth were divided at random into 2 groups, one group received Clinpro XT and the other conventional GIC Vidrion R. Treatments were assessed by tactile and air blast tests using Visual Analogue Scale (VAS) at baseline, after 20 minutes, and at 7, 15, 21, 30, 90 and 180 days post-treatment...
January 5, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28068271/significant-shear-bond-strength-improvements-of-a-resin-modified-glass-ionomer-cement-with-a-resin-coating
#3
Michael T Stallings, Daniel C Stoeckel, Kenneth G Rawson, Dan B Welch
Previous evidence has suggested that resin-modified glass ionomer cements (RMGICs) may be sensitive to temperature and moisture changes for the first 24 hours after photopolymerization. To test the hypothesis that a resin coating placed over the surface of an RMGIC restoration would decrease the susceptibility to moisture and temperature conditions, 44 RMGIC samples were prepared in inverted-cone recesses drilled in epoxy resin plates. After abrasion of all samples with 800-grit silicon carbide paper to simulate a diamond bur finish on the surface, a coat of highly filled resin was applied to the experimental group (n = 22) and cured according to the manufacturer's instructions...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28054040/systematic-review-on-highly-viscous-glass-ionomer-cement-resin-coating-restorations-part-ii-%C3%A2-do-they-merge-minamata-convention-and-minimum-intervention-dentistry
#4
Andrej M Kielbassa, Georg Glockner, Michael Wolgin, Karl Glockner
BACKGROUND: With the Minamata Convention the use of mercury will be phased down, and this undoubtedly will have an effect on dental treatment regimens and economic resources. Composite resin restorations are considered viable alternatives to amalgam fillings; however, these will not be covered completely by health insurance systems in many countries. Recently, a high-viscosity glass-ionomer cement (hvGIC) processed with a resinous coating (RC) has been introduced, and has been marketed as a restorative material in load-bearing Class I cavities (and in Class II cavities with limited size), thus serving as a possible alternative to amalgam fillings...
2017: Quintessence International
https://www.readbyqxmd.com/read/28052206/does-addition-of-propolis-to-glass-ionomer-cement-alter-its-physicomechanical-properties-an-in-vitro-study
#5
P Subramaniam, K L Girish Babu, G Neeraja, S Pillai
: Propolis is a natural resinous substance produced by honey bees. The antimicrobial effects of glass ionomer cement have been shown to improve with the addition of propolis; however its effect on the physicomechanical properties of the cement is not known. AIM: The purpose of this study was to evaluate the compressive strength and solubility of conventional restorative glass ionomer cement following the addition of propolis. STUDY DESIGN: Twenty half cylindrical samples were prepared with conventional restorative glass ionomer cement formed the control group...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28044248/the-opinion-of-children-and-their-parents-about-four-different-types-of-dental-restorations-in-a-public-health-service-in-brazil
#6
R Maciel, D Salvador, K Azoubel, R Redivivo, C Maciel, C da Franca, E Amerongen, V Colares
AIM: To investigate the opinion of children and their parents of four different types of restoration placed in primary molars. METHODS: A mixed method study in which both children and their parents were involved. In the quantitative study, children and parents gave their opinion using a face scale about four different types of restoration immediately after placement, evaluating how satisfied they were. In the qualitative part, children and their parents were interviewed to report their preference among the four types of restoration using dental models and photos...
January 2, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28029189/morphological-and-immunohistochemical-analysis-of-the-biocompatibility-of-resin-modified-cements
#7
Janaina Almeida Mesquita, Rogério Lacerda-Santos, Gustavo Pina Godoy, Cassiano Franscisco Weege Nonaka, Pollianna Muniz Alves
The aim of this double-blind randomized study was to evaluate the biocompatibility of resin-modified glass ionomer cements (RMGIC) by means of morphological and immunohistochemical analyses. RMGICs were selected and divided into four groups: Group CK (Crosslink Orthodontic Band Cement); Group RS (Resilience Light Cure Band Cement) Group RMO (RMO Band Cement), Group TP (Transbond Plus Light Cure Band), and Group C (Control-polyethylene). The materials were implanted in rat subcutaneous tissues, randomly selected for this study...
December 28, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28028417/a-twofold-comparison-between-dual-cure-resin-modified-cement-and-glass-ionomer-cement-for-orthodontic-band-cementation
#8
Hanaa El Attar, Omnia Elhiny, Ghada Salem, Ahmed Abdelrahman, Mazen Attia
AIM: To test the solubility of dual cure resin modified resin cement in a food simulating solution and the shear bond strength compared to conventional Glass ionomer cement. MATERIALS AND METHOD: The materials tested were self-adhesive dual cure resin modified cement and Glass Ionomer (GIC). Twenty Teflon moulds were divided into two groups of tens. The first group was injected and packed with the modified resin cement, the second group was packed with GIC. To test the solubility, each mould was weighed before and after being placed in an analytical reagent for 30 days...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28018562/effect-of-cement-type-on-the-color-attributes-of-a-zirconia-ceramic
#9
Farhad Tabatabaian, Maliheh Habib Khodaei, Mahshid Namdari, Minoo Mahshid
PURPOSE: This in vitro study evaluated the effects of four different cements on the color attributes of a zirconia ceramic. MATERIALS AND METHODS: 40 zirconia ceramic disk specimens (0.5 mm thickness, 10 mm diameter, 0.1 mm cement space) were fabricated by a computer-aided design and computer-aided manufacturing system. The specimens were divided into 4 groups of 10 specimens and cemented to composite substrates using four different cements including: Glass Ionomer, Panavia F2...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28013413/selective-persistence-of-propionibacterium-species-fma5-following-sealing-of-infected-dentinal-matrix
#10
M A Nadkarni, K Angner, N Hunter
The objective of the present study was to test the hypothesis that nutrient deprivation by effective isolation should inactivate causative saccharolytic bacteria occupying carious lesions. Vital maxillary third molar teeth were prepared by removing only the superficial necrotic material, leaving behind infected dentinal matrix, before the cavity was sealed with glass ionomer cement (GIC). Before sealing, lesions were biopsied to provide reference bacterial DNA for microbial analysis. After an interval of 10-12 months, the teeth were extracted and, after careful removal of GIC restoration, the underlying dentine was biopsied again for post-treatment microbial analysis...
December 24, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28001244/survival-analysis-of-banding-and-bonding-molar-tubes-in-adult-patients-over-a-12-month-period-a-split-mouth-randomized-clinical-trial
#11
Valéria Jacques Oeiras, Valéria Assis Almeida E Silva, Leidiana Aguiar Azevedo, Vanessa Soares Lobato, David Normando
This split-mouth randomized clinical trial aimed to compare the survival rate of bonding and banding molar tubes in adult orthodontic patients. Eligibility criteria included adults (aged >18 years), no active caries, restorations, or fractures in the upper and lower molars. The main outcome was any type of first-time failure in molar tubes. A computer-generated randomization scheme was used in a 1:1 ratio. The survival rate was estimated for 32 adult patients, in whom a tube was bonded to a molar tooth using composite resin on one side and a band was cemented with glass ionomer onto the same tooth in the contralateral arch...
December 22, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/28000039/clinical-performance-of-a-glass-ionomer-restorative-system-a-6-year-evaluation
#12
Sevil Gurgan, Zeynep Bilge Kutuk, Esra Ergin, Sema Seval Oztas, Filiz Yalcin Cakir
OBJECTIVES: The aim of this study is to evaluate the long-term clinical performance of a glass ionomer (GI) restorative system in the restoration of posterior teeth compared with a micro-filled hybrid posterior composite. MATERIALS AND METHODS: A total of 140 (80 Cl1 and 60 Cl2) lesions in 59 patients were restored with a GI system (Equia) or a micro hybrid composite (Gradia Direct). Restorations were evaluated at baseline and yearly during 6 years according to the modified-USPHS criteria...
December 20, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27994315/histological-evaluation-of-mineral-trioxide-aggregate-and-enamel-matrix-derivative-combination-in-direct-pulp-capping-an-in-vivo-study
#13
Indira Priyadarshini Bollu, L Deepa Velagula, Nagesh Bolla, K Kiran Kumar, Archana Hari, Jayaprakash Thumu
AIM: The aim of this study is to evaluate the response of human pulp tissue to mineral trioxide aggregate (MTA), Emdogain (EMD), and combination of MTA/EMD. MATERIALS AND METHODS: This study was performed on sixty intact first and second premolars of human maxillary and mandibular teeth. A standard pulpal exposure was done on all the teeth and was divided into three groups of twenty teeth each and was capped with MTA, EMD, and MTA/EMD combination. The final restoration was done with resin-modified glass ionomer cement...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27994311/the-influence-of-the-lining-material-on-the-repair-of-the-infected-dentin-in-young-permanent-molars-after-restoration-a-randomized-clinical-trial
#14
Eunice Kuhn, Alessandra Reis, Ana Claudia Rodrigues Chibinski, Denise Stadler Wambier
AIM: This study evaluated the impact of liner material on the fluorescence, morphological and mineral characteristics of permanent carious dentin after cavity sealing. METHODS: Thirty children (11.0 ± 2.7 years old) presenting at least one active deep carious lesion in permanent molars were selected. Fragments of carious dentin were removed from teeth before lining the cavity (baseline samples) with high-viscosity glass ionomer cement (G1) or an inert material (wax - G2)...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27994310/clinical-performance-of-class-i-nanohybrid-composite-restorations-with-resin-modified-glass-ionomer-liner-and-flowable-composite-liner-a-randomized-clinical-trial
#15
Krishtipati Suhasini, Koppolu Madhusudhana, Chinni Suneelkumar, Anumula Lavanya, K S Chandrababu, Perisetty Dinesh Kumar
BACKGROUND: Liners play a vital role in minimizing polymerization shrinkage stress by elastic bonding concept and increase the longevity and favorable outcome for composite restorations. AIMS: The aim of this study was to evaluate the clinical performance of nanohybrid composite restorations using resin-modified glass-ionomer and flowable composite liners. SETTINGS AND DESIGN: A single-centered, double-blinded randomized clinical trial, with split-mouth design and equal allocation ratio that was conducted in the Department of Conservative Dentistry and Endodontics...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27991646/materials-for-retrograde-filling-in-root-canal-therapy
#16
REVIEW
Xiangyu Ma, Chunjie Li, Liuhe Jia, Yan Wang, Wenwen Liu, Xuedong Zhou, Trevor M Johnson, Dingming Huang
BACKGROUND: Root canal therapy is a sequence of treatments involving root canal cleaning, shaping, decontamination and obturation. It is conventionally performed through a hole drilled into the crown of the affected tooth, namely orthograde root canal therapy. For teeth that cannot be treated with orthograde root canal therapy, or for which it has failed, retrograde root filling, which seals the root canal from the root apex, is a good alternative. Many materials, such as amalgam, zinc oxide eugenol and mineral trioxide aggregate (MTA), are generally used...
December 17, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27989017/evaluation-of-the-caries-preventive-effect-of-toothpaste-containing-surface-prereacted-glass-ionomer-filler
#17
Bennett Tochukwu Amaechi, Meredith C Key, Sabarathnam Balu, Linda Ogechukwu Okoye, Peter Thiuri Gakunga
AIM: Although fluoride interventions have the most consistent benefit in preventing caries, caries still develop in high-risk individuals. Authors have evaluated the effectiveness of toothpastes containing surface prereacted glass-ionomer (S-PRG) filler in preventing tooth demineralization. METHODS: Human tooth enamel blocks were randomly assigned to six groups (30 blocks/group): no treatment (a), and toothpaste containing either 1500 ppm fluoride as sodium monofluorophosphate (NaMFP) (b), 0 wt% S-PRG (b), 1 wt% S-PRG (d), 5 wt% S-PRG (e), or 20 wt% S-PRG (f)...
December 17, 2016: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27986375/biological-evaluation-of-a-new-pulp-capping-material-developed-from-portland-cement
#18
Ahmed M Negm, Ehab E Hassanien, Ashraf M Abu-Seida, Mohamed M Nagy
This study evaluates the biological properties of a new pulp capping material developed from Portland cement. This study was conducted on 48 teeth in 4 dogs (12 teeth/dog). The dogs were classified into two equal groups (n=24 teeth) according to the evaluation period including: group A (3 weeks) and group B (3 months). Each group was further subdivided into three equal subgroups (n=8 teeth) according to the capping material including: subgroup 1: mineral trioxide aggregate (MTA), subgroup2: Portland cement+10% calcium hydroxide+20% bismuth oxide (Port Cal) and subgroup 3: Portland cement+bismuth oxide...
December 13, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27982179/streptococcus-mutans-biofilm-influences-on-the-antimicrobial-properties-of-glass-ionomer-cements
#19
Suzana B P Fúcio, Andréia B de Paula, Janaina C O Sardi, Cristiane Duque, Lourenço Correr-Sobrinho, Regina M Puppin-Rontani
The aim of this study was to evaluate the in vitro antibacterial and biofilm inhibition properties of glass ionomer restorative cements. Ketac Nano, Vitremer, Ketac Molar Easymix and Fuji IX were analyzed using the following tests: a) agar plate diffusion test to evaluate the inhibitory activity of cements against S. mutans (n=8); b) S. mutans adherence test by counting colony-forming units after 2 h of material/bacteria exposure (n=10); c) biofilm wet weight after seven days of bacterial accumulation on material disks, with growth medium renewed every 48 h (n=10); d) pH and fluoride measurements from the medium aspired at 48 h intervals during the 7-day biofilm development (n=10)...
November 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27977829/effect-of-lining-materials-on-shear-bond-strength-for-composite-restorations-in-vitro
#20
Taciana Marco Caneppele, Eduardo Bresciani, Daniele Mara Da Silva Ávila, Daphne Camara Barcellos, Cesar Rogério Pucci
This study evaluated the influence of liner agents placed under resin composite restorations on shear bond strength (SBS) to dentin. A total of 40 extracted bovine incisors were used. Enamel surfaces were ground to expose a flat dentin area of 7 mm in diameter. Teeth were divided into four groups according to tested liners: Group 1 (control) used no liner; Group 2 used a resin-modified glass-ionomer cement liner (Vitrebond Plus, 3M ESPE); Group 3 used a light-activated calcium hydroxide resin liner (Ultra-Blend Plus, Ultradent); and Group 4 used a polyacrylic acid surface treatment + conventional glass-ionomer cement liner (Vidrion F, SSWhite)...
January 2017: International Journal of Periodontics & Restorative Dentistry
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