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https://www.readbyqxmd.com/read/29338276/evaluation-of-the-water-sorption-of-luting-cements-in-different-solutions
#1
Alma Gavranović-Glamoč, Muhamed Ajanović, Samra Korać, Selma Zukić, Sanela Strujić-Porović, Alma Kamber-Ćesir, Lejla Kazazić, Emir Berhamović
OBJECTIVE: To evaluate and compare the water sorption of three luting cements in three different solutions: distilled water and artificial saliva with different pH values (7.4 and 3.0). MATERIALS AND METHODS: Resin-modified glass-ionomer cement (GC Fuji Plus) and two resin cements (Multilink Automix and Variolink II) were used. A total of 45 specimens - 15 specimens (15x1 mm) for each cement were prepared according to ISO standard 4049:2009. The water sorptions of the cements were calculated by weighing the specimens before and after immersion and desiccation...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29336880/marginal-gaps-between-2-calcium-silicate-and-glass-ionomer-cements-and-apical-root-dentin
#2
Vladimir Biočanin, Đorđe Antonijević, Srđan Poštić, Dragan Ilić, Zorica Vuković, Marija Milić, Yifang Fan, Zhiyu Li, Božidar Brković, Marija Đurić
INTRODUCTION: The outcome of periapical surgery has been directly improved with the introduction of novel material formulations. The aim of the study was to compare the retrograde obturation quality of the following materials: calcium silicate (Biodentine; Septodont, Saint-Maur-des-Fosses, France), mineral trioxide aggregate (MTA+; Cerkamed Company, Stalowa Wola, Poland), and glass ionomer cement (Fuji IX; GC Corporation, Tokyo, Japan). METHODS: Materials' wettability was calculated concerning the contact angles of the cements measured using a glycerol drop...
January 12, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29334137/calcium-phosphate-precipitation-in-experimental-gaps-between-fluoride-containing-fast-setting-calcium-silicate-cement-and-dentin
#3
Bahram Ranjkesh, Ming Ding, Michel Dalstra, Jens R Nyengaard, Jacques Chevallier, Flemming Isidor, Henrik Løvschall
A novel fast-setting calcium silicate cement containing fluoride (novel-CSC) has been developed for applications in tooth crowns. The aim of this study was to assess the ability of the novel-CSC to close the experimental gaps at the dentin-cement interface. The novel-CSC was tested against Vitrebond and GC Fuji II LC. Experimental gaps of 50 or 300 μm width were created between the materials and dentin. Specimens with the 300-μm-wide gap were immersed in phosphate-buffered saline and the closed gap area was measured during 96 h...
January 15, 2018: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/29326512/evaluating-the-effect-of-different-conditioning-agents-on-the-shear-bond-strength-of-resin-modified-glass-ionomers
#4
Namith Rai, Rajaram Naik, Ravi Gupta, Shobana Shetty, Amith Singh
Aim of the Study: This study aims to evaluate the effects three different conditioning agents on the shear bond strength of resin-modified glass ionomers to human dentin. Materials and Methods: One hundred and twenty recently extracted, caries-free premolars and molars will be cleaned of debris and disinfected in a 0.5% solution of sodium hypochlorite and sterile water for 30 min. The occlusal surface of each tooth will be reduced using conventional model trimmer with water to produce the dentin surface...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29323779/effect-of-different-liners-on-fracture-resistance-of-premolars-restored-with-conventional-and-short-fiber-reinforced-composite-resins
#5
Fereshteh Shafiei, Maryam Doozandeh, Dordaneh Ghaffaripour
PURPOSE: To see whether applying four different liners under short fiber-reinforced composite (SFRC), everX Posterior, compared to conventional composite resin, Z250, affected their strengthening property in premolar MOD cavities. MATERIALS AND METHODS: Mesio-occluso-distal (MOD) cavities were prepared in 120 sound maxillary premolars divided into 10 groups (n = 12) in terms of two composite resin types and 4 liners or no liner. For each composite resin, in 5 groups no liner, resin-modified glass ionomer (RMGI), conventional flowable composite (COFL), self-adhesive flowable composite resin (SAFL), and self-adhesive resin cement (SARC) were applied prior to restoring incrementally...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29323776/remineralization-of-natural-human-carious-dentin-lesions-with-an-experimental-whisker-reinforced-atraumatic-restorative-treatment-composite
#6
Chao Zhang, Stephen D Campbell, Sabine H Dickens, Bin Yang
PURPOSE: To evaluate the remineralization of natural human dentin caries with an experimental whisker-reinforced Atraumatic Restorative Treatment (ART) composite. MATERIALS AND METHODS: Teeth with moderate active dentin caries were prepared with caries-disclosing dye and hand instruments, restored with ART or resin-modified glass ionomer cement (RM-GIC), and then wet sliced into 120-μm sections with 15 sections in each group. After taking transverse microradiographs and implementing digital image analysis to determine the "mineral-loss-before," each section was incubated in artificial saliva solution (pH = 7...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29299191/comparison-of-two-different-debonding-techniques-in-orthodontic-treatment
#7
Luca Piccoli, Guido Migliau, Laith Konstantinos Besharat, Stefano Di Carlo, Giorgio Pompa, Roberto Di Giorgio
Aim: The purpose of this research is to investigate whether and how the adhesive bond failure site varied in relation to the material used for the orthodontic bonding and debonding technique applied. Materials and methods: Two different methods of orthodontic debonding were included in our survey; cutters for orthodontics and debonding plier. Three different materials for the adhesion of the bracket: composite light curing, self-curing composite and glass ionomer cement...
April 2017: Annali di Stomatologia
https://www.readbyqxmd.com/read/29290183/comparison-of-retrograde-primary-and-secondary-bonding-materials-with-tooth-substance
#8
Tabinda Nawaz Khan, Syed Yawar Ali Abidi
OBJECTIVE: To compare the microleakage of MTA (mineral trioxide aggregate) and resin-modified GIC (glass ionomer vitremer) as retrograde endodontic material. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Operative Department of DIIKIOHS (DUHS) and NED University, Karachi, from February to June 2014. METHODOLOGY: Forty human anterior teeth were divided into four groups. Each tooth was endodontically treated...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29289729/replacing-amalgam-with-a-high-viscosity-glass-ionomer-in-restoring-primary-teeth-a-cost-effectiveness-study-in-brasilia-brazil
#9
A Goldman, J E Frencken, R G De Amorim, S C Leal
OBJECTIVES: When planning primary oral health care services the cost implications of adopting new intervention practices are important, especially in resource-strapped countries. Although on a trajectory to be phased-out, amalgam remains the standard of care in many countries. METHODS: Adopting a government perspective, this study compared the costs of performing amalgam and ART/high-viscosity glass-ionomer cement (HVGIC) restorations and the consequences of failed restorations over 3 years in suburban Brasilia, Brazil...
December 28, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29284946/to-compare-and-evaluate-the-sorption-and-solubility-of-four-luting-cements-after-immersion-in-artificial-saliva-of-different-ph-values
#10
Kadambari Bharali, Manjula Das, Silpi Jalan, Rajdeep Paul, Adrija Deka
Introduction: The word 'luting' is derived from a latin word 'Lutum' which means 'mud'. 'Luting' is a word that is often used to describe the use of a mouldable substance to seal a space or to cement two components together. Therefore in view of the clinical importance of dissolution of luting cements in the oral environment, an in vitro study was designed to compare the sorption and solubility of commercially available luting cements mainly zinc phosphate, Glass Ionomer cement, Resin Modified Glass Ionomer Cement and Resin Cement after immersion in artificial saliva of different ph values of 5 and 7...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29284075/atraumatic-restorative-treatment-versus-conventional-restorative-treatment-for-managing-dental-caries
#11
REVIEW
Mojtaba Dorri, Maria José Martinez-Zapata, Tanya Walsh, Valeria Cc Marinho, Aubrey Sheiham Deceased, Carlos Zaror
BACKGROUND: Dental caries is a sugar-dependent disease that damages tooth structure and, due to loss of mineral components, may eventually lead to cavitation. Dental caries is the most prevalent disease worldwide and is considered the most important burden of oral health. Conventional treatment methods (drill and fill) involve the use of rotary burs under local anaesthesia. The need for an electricity supply, expensive handpieces and highly trained dental health personnel may limit access to dental treatment, especially in underdeveloped regions...
December 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29279764/effects-of-hybrid-coat-on-shear-bond-strength-of-five-cements-an-in-vitro-study
#12
Yue Guo, Hou-De Zhou, Yun-Zhi Feng
PURPOSE: To evaluate the sealing performance of Hybrid Coat and its influence on the shear bond strength of five dentin surface cements. MATERIALS AND METHODS: Six premolars were pretreated to expose the dentin surface prior to the application of Hybrid Coat. The microscopic characteristics of the dentinal surfaces were examined with scanning electron microscopy (SEM). Then, 40 premolars were sectioned longitudinally, and 80 semi-sections were divided into a control group (untreated) and a study group (treated by Hybrid Coat)...
December 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29279676/comparative-evaluation-of-calcium-phosphate-based-varnish-and-resin-modified-glass-ionomer-based-varnish-in-reducing-dentinal-hypersensitivity-a-randomized-controlled-clinical-trial
#13
Harshul Sharma, Charu Gupta, Sophia Thakur, Sanjeev Srivastava
Objective: The aim of this study was to evaluate the efficacy of MI varnish and Clinpro XT varnish in reducing dentinal hypersensitivity. Materials and Methods: Patients with cervical dentinal hypersensitivity were selected for the study. The teeth to be tested were isolated. Then, a blast of air and ice cold water was applied on the tooth surface, and the score was measured by visual analog scale. The patients were randomly assigned to one of the treatment groups (Group 1: MI varnish; Group 2; Clinpro XT varnish)...
October 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/29279675/the-effect-of-two-cross-linking-agents-on-dentin-bond-strength-of-resin-modified-glass-ionomer
#14
Fereshteh Shafiei, Maryam Firouzmandi, Moona Zamanpour
Objectives: The hybrid layer at the interface of resin-modified glass ionomer cements and dentin is prone to degradation by endogenous matrix metalloproteinases. We aimed to investigate the effect of two types of collagen crosslinkers, carbodiimide and proanthocyanidin (PA), on immediate and medium-term bond strength of a resin-modified glass ionomer to dentin. Materials and Methods: Seventy-two molars were flattened on the occlusal surface to expose dentin. The specimens were divided into control, 1-ethyl-3-(3-dimethylaminopropy) carbodiimide hydrochloride (EDC), and PA groups (n = 24)...
October 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/29279629/management-of-invasive-cervical-resorption-using-a-surgical-approach-followed-by-an-internal-approach-after-2-months-due-to-pulpal-involvement
#15
Marina Fernandes, Lilian Menezes, Ida De Ataide
Invasive cervical resorption (ICR) is an aggressive and invasive form of external tooth resorption that commences in the cervical region which can be managed using either a nonsurgical, surgical or a combination of nonsurgical and surgical approach. The restoration of resorptive defects having a coronal and radicular extent can be challenging as a single material cannot be used to restore the entire defect. This case presented with Heithersay's Class 3 ICR lesion in tooth #12, which was managed initially using a surgical approach and restoration of ICR defect with a combination of resin modified glass ionomer cement, composite resin and mineral trioxide aggregate (MTA)...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29279627/one-year-comparative-evaluation-of-ketac-nano-with-resin-modified-glass-ionomer-cement-and-giomer-in-noncarious-cervical-lesions-a-randomized-clinical-trial
#16
Bollu Indira Priyadarshini, Thumu Jayaprakash, Bolla Nagesh, Chukka Ram Sunil, Varri Sujana, Velagala L Deepa
Aim: The purpose of this study was to evaluate the clinical performance of Ketac Nano (Ketac™ N100), RMGIC (Fuji Filling™ LC), and Giomer (Beautifil® II) in noncarious cervical lesions (NCCLs). Materials and Methods: One operator restored 120 NCCLs in 20 subjects, with at least two lesions restored with one of the restorative materials: RMGIC (control group), Giomer and Ketac Nano (experimental groups). Two observers evaluated retention, marginal discoloration, marginal adaptation, color match, surface roughness, and postoperative sensitivity using modified USPHS criteria at baseline, 6, and 12 months...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29279619/comparative-evaluation-of-the-bond-strength-of-posterior-composite-with-different-cavity-configurations-and-different-liners-using-a-two-step-etch-and-rinse-adhesive-system-in-vitro-study
#17
Tanaya Kumar, Anita Sanap, Karan Bhargava, Shalini Aggarwal, Gurupriya Kaur, Kunal Kunjir
Introduction: Conventional Class II cavity preparations used for restoring small lesions with amalgam may be inappropriate for composite resin restorations due to the extensive cavity form, large occlusal contact area, and thin or missing margins of the tooth. Cavity preparation in the proximal areas as per the precepts of Clark is a conservative method of caries excavation and tooth preparation. Materials and Methods: Conventional Class II and Clark's Class II cavities were prepared on the mesial surfaces of 60 molars...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29261125/rheological-characterization-as-an-alternative-method-to-indentation-for-determining-the-setting-time-of-restorative-and-endodontic-cements
#18
William N Ha, Timothy M Nicholson, Bill Kahler, Laurence J Walsh
This study explored an alternative approach using rheology to assess setting time. The following cements were tested: ProRoot® MTA (Dentsply, Tulsa, OK, USA), Biodentine® (Septodont, Saint Maur des Fosses, France), Fuji VII®, FujiVII® EP, and Fuji IX® (from GC Corporation, Tokyo, Japan), RealSeal SE™ Sealer (SybronEndo, Amersfoort, The Netherlands), AH 26® and AH Plus (both from Dentsply DeTrey, Konstanz, Germany). Freshly mixed cements were placed into a strain-controlled rheometer (1 rad·s-1 with an applied strain of 0...
December 20, 2017: Materials
https://www.readbyqxmd.com/read/29259364/effect-of-protective-coating-on-microhardness-of-a-new-glass-ionomer-cement-nanofilled-coating-versus-unfilled-resin
#19
Foad Faraji, Haleh Heshmat, Sepideh Banava
Background and Objectives: EQUIATM is a new gastrointestinal (GI) system with high compressive strength, surface microhardness (MH), and fluoride release potential. This in vitro study aimed to assess the effect of aging and type of protective coating on the MH of EQUIATM GI cement. Materials and Methods: A total of 30 disc-shaped specimens measuring 9 mm in diameter and 2 mm in thickness were fabricated of EQUIATM GI and divided into three groups of G-Coat nanofilled coating (a), no coating (b) and margin bond (c)...
July 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29251452/fluoride-release-and-re-release-from-a-bioactive-restorative-material
#20
Elizabeth May, Kevin J Donly
PURPOSE: To compare the amount of fluoride release and re-release of three different restorative materials. METHODS: The three restorative materials included a resin-based composite (Z100TM, 3M-ESPE), a resin-modified glass ionomer cement (VitremerTM, 3M-ESPE) and a bioactive material (Activa Bioactive-RestorativeTM, Pulpdent,). Ten disks were fabricated from each material. The disks were immersed in deionized water and stored. Samples were taken from each vial on Days 1, 7, 14 and 30 for fluoride ion analysis...
December 2017: American Journal of Dentistry
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