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https://www.readbyqxmd.com/read/29780734/antimicrobial-efficacy-of-different-endodontic-sealers-against-enterococcus-faecalis-an-in-vitro-study
#1
Swati Dalmia, Abhidnya Gaikwad, Roshan Samuel, Gayatri Aher, Meenal Gulve, Swapnil Kolhe
Objective: The aim of this in vitro study is to compare the antimicrobial efficacy of four different endodontic sealers against Enterococcus faecalis . Material and Method: Four different endodontic sealers, namely, resin based (AH Plus), zinc oxide-eugenol based (Tubliseal), calcium hydroxide based (Sealapex), and mineral trioxide aggregate (MTA Fillapex) based were tested for their antimicrobial efficacy against E. faecalis using agar diffusion method. Four wells were made by the removal of agar at equidistant points and filled with freshly mixed respective root canal sealers and were inoculated with E...
March 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29774421/a-fluorometric-aptasensor-for-methamphetamine-based-on-fluorescence-resonance-energy-transfer-using-cobalt-oxyhydroxide-nanosheets-and-carbon-dots
#2
Zeinab Saberi, Behzad Rezaei, Hossein Faroukhpour, Ali Ashghar Ensafi
Cobalt oxyhydroxide (CoOOH) nanosheets are efficient fluorescence quenchers due to their specific optical properties and high surface area. The combination of CoOOH nanosheets and carbon dots (CDs) has not been used in any aptasensor based on fluorescence quenching so far. An aptamer based fluorometric assay is introduced that is making use of fluorescent CDs conjugated to the aptamer against methamphetamine (MTA), and of CoOOH nanosheets which reduce the fluorescence of the CDs as a quencher. The results revealed that the conjugated CDs with aptamers were able to enclose the CoOOH nanosheets...
May 17, 2018: Mikrochimica Acta
https://www.readbyqxmd.com/read/29767382/direct-pulp-capping-in-primary-molars-using-a-resin-modified-portland-cement-based-material-theracal-compared-to-mta-with-12-month-follow-up-a-randomised-clinical-trial
#3
L Erfanparast, P Iranparvar, A Vafaei
AIM: This study was to compare the success of resin-modified Portland cement-based material (TheraCal) with MTA in direct pulp capping (DPC) of primary molars. METHODS: Symmetrical bilateral primary molars (92) from 46 healthy subjects aged 5-7 years were included in this split-mouth randomised clinical trial. DPC for small non-contaminated pulp exposures using either TheraCal or MTA were randomly performed in symmetrical molars. Thereafter, teeth were restored with amalgam...
May 16, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29765903/effect-of-ultrasonic-agitation-on-push-out-bond-strength-and-adaptation-of-root-end-filling-materials
#4
Murilo Priori Alcalde, Rodrigo Ricci Vivan, Marina Angélica Marciano, Jussaro Alves Duque, Samuel Lucas Fernandes, Mariana Bailo Rosseto, Marco Antonio Hungaro Duarte
Objectives: This study evaluated the effect of ultrasonic agitation of mineral trioxide aggregate (MTA), calcium silicate-based cement (CSC), and Sealer 26 (S26) on adaptation at the cement/dentin interface and push-out bond strength. Materials and Methods: Sixty maxillary canines were divided into 6 groups ( n = 10): MTA, S26, and CSC, with or without ultrasonic activation (US). After obturation, the apical portions of the teeth were sectioned, and retrograde cavities were prepared and filled with cement by hand condensation...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29764492/mineral-trioxide-aggregate-affects-cell-viability-and-induces-apoptosis-of-stem-cells-from-human-exfoliated-deciduous-teeth
#5
Chia-Ling Tsai, Mu-Chan Ke, Yi-Hao Chen, Hsi-Kung Kuo, Hun-Ju Yu, Chueh-Tan Chen, Ya-Chi Tseng, Pei-Chin Chuang, Pei-Chang Wu
BACKGROUND: Mineral trioxide aggregate (MTA) is widely used for pulp-capping procedures in permanent teeth and as a gold standard material in endodontics. The aim of the study was to investigate the effect of MTA on cell viability and apoptosis when MTA is directly in contact with Stem Cells from Human Exfoliated Deciduous Teeth (SHEDs). METHODS: MTA was mixed and coated in the bottom of a 24-well plate. SHEDs collected and cultured from normal exfoliated human deciduous teeth (passages 3-4) were seeded on square cover glasses...
May 15, 2018: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29763354/randomized-controlled-trial-of-pulpotomy-in-primary-molars-using-mta-and-formocresol-compared-to-3mixtatin-a-novel-biomaterial
#6
Zahra Jamali, Vajiheh Alavi, Ebrahim Najafpour, Naser Asl Aminabadi, Sajjad Shirazi
OBJECTIVE: This study was conducted to compare the efficacy of 3Mixtatin (a combination of simvastatin and 3Mix antibiotic) with MTA and Formocresol for the pulpotomy of primary molars. STUDY DESIGN: 114 children aged 3-6 years old with 150 primary molars were randomly allocated to three groups. MTA, Formocresol or 3Mixtatin were used for Pulpotomies. Hard setting zinc oxide eugenol was used to cover these materials. The teeth were restored with amalgam. Blinded radiographic and clinical examinations were conducted at 6, 12 and 24 months after treatment for the presence of pain, tenderness to palpation and percussion, sinus tract, swelling, presence of internal or external root resorption, inter-radicular radiolucency, and periapical lesion...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29763345/tissue-engineering-of-necrotic-dental-pulp-of-immature-teeth-with-apical-periodontitis-in-dogs-radiographic-and-histological-evaluation
#7
Eman A El Ashiry, Najlaa M Alamoudi, Mahmoud K El Ashiry, Hagar A Bastawy, Douaa A El Derwi, Hazem M Atta
AIM: To evaluate tissue engineering technology to regenerate pulp-dentin like tissues in pulp canals of immature necrotic permanent teeth with apical periodontitis in dogs. STUDY DESIGN: The study was performed on 36 teeth in 12 dogs. The experiment was carried out using split mouth design. In each dog 3 teeth were selected for implementing the study procedure. Apical periodontitis was induced in Group A and B teeth. Group (A): immature upper left 2nd permanent incisors that were transplanted with a construct of autologous dental pulp stem cells with growth factors seeded in a chitosn hydrogel scaffold...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29744721/the-evaluation-of-mta-and-biodentine-as-a-pulpotomy-materials-for-carious-exposures-in-primary-teeth
#8
Burcu Nihan Çelik, Merve Safa Mutluay, Volkan Arıkan, Şaziye Sarı
OBJECTIVE: This study examined the effects of MTA and Biodentine on the clinical and radiographic success rates of pulpotomies performed on primary teeth with carious pulp exposures. MATERIALS AND METHODS: This study was conducted with 44 mandibular primary molars requiring vital pulpotomy. Carious dentin surrounding the exposure site was used as the inclusion criteria for all teeth, which were randomly divided into two groups according to pulpotomy material [MTA group (n = 24), Biodentine group (n = 20)]...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29732015/push-out-bond-strength-of-intra-orifice-barrier-materials-bulk-fill-composite-versus-calcium-silicate-cement
#9
Taha Özyurek, Gülşah Uslu, Koray Yilmaz
Background. The aim of this study was to compare the push-out bond strengths of calcium silicate-based ProRoot MTA and Biodentine cements and SureFil SDR and EverX Posterior bulk-fill composite resins. Methods. Twenty-four single-rooted maxillary central incisors were sectioned below the cementoenamel junction, and the root canals were instrumented using rotary files. Thereafter, a parallel post drill was used to obtain a standardized root canal dimension. The roots were randomly assigned to one of the following groups with respect to the intra-orifice barrier used: ProRoot MTA; Biodentine; SureFil SDR; EverX Posterior...
2018: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/29732014/comparison-of-the-shear-bond-strength-of-silorane-based-composite-resin-and-methacrylate-based-composite-resin-to-mta
#10
Buse Ayse Serin, Muharrem Cem Dogan, Hamdi Oguz Yoldas
Background. Mineral trioxide aggregate (MTA) is a material that has recently gained popularity in the application of the vital pulp therapy. Along with the increasing use of MTA to this end, the permanent restoration material to be placed on MTA has become a significant issue. The aim of this in vitro study was to investigate the bond strength of the novel low-shrinkage silorane-based composite resin (SBC) to MTA. Methods. Twenty acrylic blocks filled with MTA were prepared for this study. SBC was the test group and methacrylate-based composite resin (MBC) was used as the control group...
2018: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/29721224/porosity-analysis-of-mta-and-biodentine-cements-for-use-in-endodontics-by-using-micro-computed-tomography
#11
Fabricio Guerrero, Esther Berástegui
Background: The purpose of this study is to compare the porosity of two repair cements, White ProRoot® MTA and Biodentine®. These samples were analyzed by using micro-computed microtomography. Material and Methods: Sixteen samples were used in the study that were divided according to the composition of the materials used. White ProRoot® MTA (n = 8) and Biodentine® (n = 8) were the samples prepared according to the manufacturer's instructions. They were placed in silicone molds of 5 ± 0...
March 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29719354/the-study-of-white-matter-hyperintensity-wmh-and-factors-related-to-geriatric-late-onset-depression
#12
Jinghua Wang, Wei Li, Ling Yue, Bo Hong, Na An, Guanjun Li, Shifu Xiao
Background: Geriatric depression is one of the most common and harmful mental illnesses seen in the elderly. However, there are few studies focusing on the relationship between late-onset depression (LOD) and social and psychological factors, as well as brain structure. Aims: To explore factors related to late-onset depression (LOD) in elderly patients. Methods: 24 first onset LOD patients over 60 years old (meeting ICD-10 diagnostic criteria for depression) and 23 non-depressed elders were selected for inclusion into this study...
February 25, 2018: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/29707015/effect-of-the-bone-graft-on-the-surface-microhardness-of-endodontic-biomaterials
#13
Shahriar Shahi, Saeed Rahimi, Hamid Reza Yavari, Negin Ghasemi, Yashar Rezaie, Samira Mirzapour
Introduction: During periapical surgery, using of bone products in large endodontic lesions, is a treatment option that could affect the properties of the retro-filling endodontic material. The aim of present study was to evaluate the effect of Osteon II bone powder on the surface microhardness of calcium-enriched mixture (CEM) and mineral trioxide aggregate (MTA). Methods and Materials: Each material was mixed and carried into 40 sterile custom-made plastic cylinders...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29696065/physiochemical-properties-of-experimental-nano-hybrid-mta
#14
Vagharedin Akhavan Zanjani, Kasra Tabari, Seyedeh Mahsa Sheikh-Al-Eslamian, Ahmad Najafi Abrandabadi
Introduction: The development of new pulp capping agents has paved the way towards the preservation of pulp vitality, which is an important goal in restorative dentistry. This study sought to assess the calcium ion release, pH and setting of mineral trioxide aggregate (MTA) Angelus, an experimental formulation of nano-hybrid MTA containing nano-SiO2, nano-Al2O3 and nano-TiO2 and MTA Angelus plus nano-oxides. Methods: In this experimental study, five specimens from each material were placed in polypropylene tubes and immersed in a flask containing deionized distilled water...
January 2018: Journal of Medicine and Life
https://www.readbyqxmd.com/read/29692843/effect-of-mta-and-cem-on-mineralization-associated-gene-expression-in-stem-cells-derived-from-apical-papilla
#15
Niusha Hajizadeh, Zahra Sadat Madani, Ebrahim Zabihi, Moniyreh Golpour, Amir Zahedpasha, Mousa Mohammadnia
Introduction: This study assessed the effect of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement on odontogenic differentiation and mineralization of stem cells. Methods and Materials: After confirmation of stemness and homogeneity of stem cells derived from apical papilla (SCAPs) using flow cytometry, the cells were exposed for 3 weeks to either osteogenic medium (OS) or CEM extract+OS (CEM+OS) or MTA extract in OS (MTA+OS) or DMEM based regular culture media (negative control)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29692841/the-effect-of-a-mineralized-bone-graft-on-the-surface-microhardness-of-mineral-trioxide-aggregate-and-biodentine
#16
Saeed Rahimi, Shahriar Shahi, Zahra Torabi, Yashar Rezaie, Negin Ghasemi, Somayeh Abolhasani
Introduction: This study was designed to determine the effect of Osteon II mineralized bone powder on the surface microhardness of two retrofilling materials: Mineral trioxide aggregate (MTA) and Biodentine (BD). Methods and Materials: Each retrograde material was mixed and carried into 30 sterile custom-made plastic cylinders. Half of the samples in each group were exposed to Osteon II. All cylinders were submerged in simulated tissue fluid and incubated at 37° C and 100% relative humidity for 7 days...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29692830/-in-vitro-mechanical-properties-of-mineral-trioxide-aggregate-in-moist-and-dry-intracanal-environments
#17
Radovan Žižka, Radim Čtvrtlík, Jan Tomaštík, Kamila Fačevicová, Ladislav Gregor, Jiří Šedý
Introduction: The purpose of this study was to examine the microhardness and modulus of elasticity (MOE) of White ProRoot MTA (Dentsply Tulsa Dental, Tulsa, OK) after setting in moist or dry intracanal conditions. Methods and Materials: To simulate root canal system, 14 polyethylen molds with internal diameter of 1 mm and height of 12 mm were used. These molds were filled with 9-mm thick layers of White ProRoot Mineral Trioxide Aggregate (MTA; Dentsply Tulsa Dental, Tulsa, OK)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29687410/laser-led-phototherapy-on-the-repair-of-tibial-fracture-treated-with-wire-osteosynthesis-evaluated-by-raman-spectroscopy
#18
Antônio L B Pinheiro, Luiz G P Soares, Aline C P da Silva, Nicole R S Santos, Anna Paula L T da Silva, Bruno Luiz R C Neves, Amanda P Soares, Landulfo Silveira
The aim of the present study was to assess, by means of Raman spectroscopy, the repair of complete surgical tibial fractures fixed with wire osteosynthesis (WO) treated or not with infrared laser (λ780 nm) or infrared light emitting diode (LED) (λ850 ± 10 nm) lights, 142.8 J/cm2 per treatment, associated or not to the use of mineral trioxide aggregate (MTA) cement. Surgical tibial fractures were created on 18 rabbits, and all fractures were fixed with WO and some groups were grafted with MTA. Irradiated groups received lights at every other day during 15 days, and all animals were sacrificed after 30 days, being the tibia removed...
April 23, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29681480/outcome-of-endodontic-surgery-a-meta-analysis-of-the-literature-part-3-comparison-of-endodontic-microsurgical-techniques-with-2-different-root-end-filling-materials
#19
REVIEW
Meetu R Kohli, Homayon Berenji, Frank C Setzer, Su-Min Lee, Bekir Karabucak
INTRODUCTION: The aim of the present study was to investigate the influence of root-end preparation and filling material on endodontic surgery outcome. A systematic review and meta-analysis was conducted to determine the outcome of resin-based endodontic surgery (RES, the use of high-magnification preparation of a shallow and concave root-end cavity and bonded resin-based root-end filling material) versus endodontic microsurgery (EMS, the use of high-magnification ultrasonic root-end preparation and root-end filling with SuperEBA [Keystone Industries, Gibbstown, NJ], IRM [Dentsply Sirona, York, PA], mineral trioxide aggregate [MTA], or other calcium silicate cements)...
April 19, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29680723/mineral-trioxide-aggregate-with-mussel-inspired-surface-nanolayers-for-stimulating-odontogenic-differentiation-of-dental-pulp-cells
#20
Ming-Gene Tu, Chia-Che Ho, Tuan-Ti Hsu, Tsui-Hsien Huang, Min-Jhen Lin, Ming-You Shie
INTRODUCTION: This research was intended to evaluate the feasibility of mineral trioxide aggregate (MTA) powder coated with polydopamine (PDA) in dental and bone tissue regeneration by investigating the hydration, physicochemical properties, and biological performance of hydrated cements. METHODS: The MTA powder was well suspended in a dopamine solution buffered at a pH of 8.5 using tris(hydroxymethyl)aminomethane buffer and vigorously stirred for 12 hours at room temperature...
April 18, 2018: Journal of Endodontics
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