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https://www.readbyqxmd.com/read/28512495/endodontic-management-of-open-apex-teeth-using-lyophilized-collagen-sponge-and-mta-cement-report-of-two-cases
#1
Miriam Graziele Magro, Milton Carlos Kuga, Weber Adad Ricci, Kátia Cristina Keine, Mateus Rodrigues Tonetto, Suellen Linares Lima, Alvaro Henrique Borges, Lauriê Garcia Belizário, Matheus Coêlho Bandeca
Teeth with open apices, such as in immature teeth or those with apical root resorption are clinical cases with difficult immediate resolution. With the use of mineral trioxide aggregate (MTA) in dentistry, it was possible to optimize the treatment time of these cases by immediate placement of apical plug and the root canal filling. However, some negative effects can occur if MTA is extruded beyond the apex. To avoid this accident, it has been recommended to use of an apical matrix prior to placement of MTA...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512490/in-vitro-cytotoxicity-of-a-new-nano-root-canal-sealer-on-human-gingival-fibroblasts
#2
Maryam Javidi, Parisa Dastmalchi, Mina Zarei, Maryam Shayani Rad, Ahmad Ghorbani
INTRODUCTION: The aim of this in vitro study was to evaluate the cytotoxicity of a new nano zinc-oxide eugenol (NZOE) sealer on human gingival fibroblasts (HGFs) compared with Pulpdent (micro-sized ZOE sealer) and AH-26 (resin-based sealer). METHODS AND MATERIALS: The Pulpdent, AH-26, and NZOE sealers were prepared and exposed to cell culture media immediately after setting, and 24 h and one week after setting. Then, the primary cultured HGFs were incubated for 24 h with different dilutions (1:1 to 1:32) of each sealer extract...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512488/in-vitro-microleakage-of-mineral-trioxide-aggregate-calcium-enriched-mixture-cement-and-biodentine-intra-orifice-barriers
#3
Fatemeh Ramezanali, Sasan Aryanezhad, Fatemeh Mohammadian, Fatemeh Dibaji, Mohammad Javad Kharazifard
INTRODUCTION: This in vitro study compared the coronal microleakage of mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement and Biodentine as intra-orifice barriers. METHODS AND MATERIALS: The study was conducted on 76 extracted single-canal human teeth. Their root canals were prepared using ProTaper rotary files and filled with gutta percha and AH-26 sealer using lateral condensation technique. Coronal 3 mm of the gutta percha was removed from the root canals and replaced randomly with MTA, CEM cement or Biodentine in the three experimental groups (n=22)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512480/effect-of-intra-canal-calcium-hydroxide-remnants-on-the-push-out-bond-strength-of-two-endodontic-sealers
#4
Sholeh Ghabraei, Behnam Bolhari, Fatemeh Yaghoobnejad, Naghmeh Meraji
INTRODUCTION: The aim of this study was to evaluate the effect of intra-canal calcium hydroxide (CH) remnants after ultrasonic irrigation and hand file removal on the push out bond strength of AH-26 and EndoSequence Bioceramic sealer (BC Sealer). METHODS AND MATERIALS: A total of 102 single-rooted extracted human teeth were used in this study. After root canal preparation up to 35/0.04 Mtwo rotary file, all the specimens received CH dressing except for 34 specimens in the control group...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512479/in-vitro-cytotoxicity-comparison-of-mta-fillapex-ah-26-and-apatite-root-canal-sealer-at-different-setting-times
#5
Farnaz Jafari, Marzieh Aghazadeh, Sanaz Jafari, Faraz Khaki, Fahime Kabiri
INTRODUCTION: This study aimed to compare the cytotoxicity of MTA Fillapex, AH-26 and Apatite root canal sealers at different times after mixing. METHODS AND MATERIALS: In this in vitro study, MTA Fillapex, AH-26 and Apatite root canal sealer were spilled uniformly by 40 µm mesh in a 96-well plate. Then, human fetal foreskin fibroblast cell line (HFFF2) were added to each sealer cell culture medium. Cytotoxicity was measured using MTT assay after 24, 48 and 72 h and seven days...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512477/physical-properties-and-chemical-characterization-of-two-experimental-epoxy-resin-root-canal-sealers
#6
Hengameh Ashraf, Farhood Najafi, Soolmaz Heidari, Manijeh Mohammadian, Saeede Zadsirjan
INTRODUCTION: The aim of this in vitro study was to evaluate the setting time, flow, film thickness, solubility, radiopacity and characterization analysis of three epoxy resin based sealers including two experimental sealers and AH-26. METHODS AND MATERIALS: Five samples of each material were evaluated for setting time, flow, film thickness, solubility and radiopacity according to ISO 6876 Standard. Characterization of sealers was performed under the scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28492745/cytotoxicity-evaluation-of-root-canal-sealers-using-an-in-vitro-experimental-model-with-roots
#7
Ligia Teixeira, Fernanda Gonçalves Basso, Josimeri Hebling, Carlos Alberto de Souza Costa, Graziela Garrido Mori, Yara Teresinha Corrêa Silva-Sousa, Camila Fávero de Oliveira
The aim of the present study was to evaluate the cytotoxicity of root canal sealers under conditions closely resembling a clinical reality. A primary human fibroblast cell line was seeded in 24-well acrylic plates with Dulbecco's modified Eagle's medium supplemented with 10% serum fetal bovine (SFB) and incubated for 24 h. Root canals from premolars were filled and individually attached to nylon devices to be stabilized in the wells with the already seeded cells. Specimens were divided into groups as follows: Control: gutta-percha cones (GPC); AH Plus+GPC; Sealapex+GPC; MTA Fillapex+GPC and Endofill+GPC...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28469826/comparative-cytotoxicity-evaluation-of-eight-root-canal-sealers
#8
Claudio Poggio, Paolo Riva, Marco Chiesa, Marco Colombo, Giampiero Pietrocola
BACKGROUND: The aim of the present study is to evaluate and compare the cytotoxic effects of eight root canal sealers (BioRoot RCS, TotalFill BC Sealer, MTA Fillapex, Sealapex, AH Plus, EasySeal, Pulp Canal Sealer, N2) on immortalized human gingival fibroblasts over a period of 24, 48 and 72 hours. MATERIAL AND METHODS: Immortalized human gingival fibroblast-1 HGF-1 (ATCC CRL-2014) were incubated. Root canal sealers were then placed into sterile, cylindrical Teflon moulds...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28467618/effectiveness-of-xp-endo-finisher-and-xp-endo-finisher-r-in-removing-root-filling-remnants-a-micro-ct-study
#9
E J N L Silva, F G Belladonna, A S Zuolo, E Rodrigues, I C Ehrhardt, E M Souza, G De-Deus
AIM: To evaluate the efficacy of filling material removal from oval-shaped canals after the use of supplementary files (XP-endo Finisher and XP-endo Finisher R) through micro-computed tomographic (micro-CT) analysis. METHODOLOGY: The root canals of twenty maxillary single-rooted teeth were prepared with Reciproc R25 files and filled with gutta-percha and AH Plus sealer using the continuous wave of condensation technique. The root canals were then retreated using Reciproc R25 and R40 instruments...
May 3, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28459243/nanotechnology-in-dentistry-clinical-applications-benefits-and-hazards
#10
Govind Shashirekha, Amit Jena, Satyajit Mohapatra
Nanotechnology is emerging as an interdisciplinary field that is undergoing rapid development and has brought about enormous changes in medicine and dentistry. Nanomaterial-based design is able to mimic some of the mechanical and structural properties of native tissue and can promote biointegration. Nanotechnology has various applications in dentistry, including dentition renaturalization, therapy for dentin hypersensitivity, complete orthodontic realignment in a single visit, covalently bonding diamondized enamel, enhancing properties of root canal sealers, and continuous oral health maintenance using mechanical dentifrobots...
May 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28439952/comparison-of-cytotoxicity-genotoxicity-and-immunological-inflammatory-biomarker-activity-of-several-endodontic-sealers-against-immortalized-human-pulp-cells
#11
F C Martinho, S E A Camargo, A M M Fernandes, M S Campos, R F Prado, C H R Camargo, M C Valera
AIM: To establish an SV40 T-Ag-transfected cell line of human pulp-derived cells in order to compare the cytotoxicity, genotoxicity and to investigate the activities of immunological biomarkers of several endodontic sealers. METHODOLOGY: Primary human pulp cells and transfected cells were cultured. Cell morphology and proliferation were analyzed, and the expression of cell-specific gene transcripts and proteins was detected by RT-PCR and immunohistochemistry. Transfection of human pulp-derived cells resulted in an immortalized cell line retaining phenotypic characteristics from the primarily cells tested...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28437194/comparison-of-three-final-irrigation-activation-techniques-effects-on-canal-cleanness-smear-layer-removal-and-dentinal-tubule-penetration-of-two-root-canal-sealers
#12
Elmas Turkel, Emel Olga Onay, Mete Ungor
OBJECTIVE: The aim of this study was to compare three final irrigation activation techniques with respect to their effects on debridement efficacy, smear layer removal, and dentinal tubule penetration of two different root canal sealers. BACKGROUND DATA: Different applications to improve the delivery of irrigating solutions within the root canal system are currently being investigated, as not all of the mechanisms and effects of these techniques have been clearly identified...
February 22, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28435372/histologic-evaluation-of-the-effect-of-mineral-trioxide-aggregate-fillapex-as-a-root-canal-sealer-in-rat-teeth-submitted-to-late-replantation
#13
Manuel Marques Ferreira, Maria Filomena Botelho, Margarida Abrantes, Lina Carvalho, Eunice Carrilho
OBJECTIVE: This study aims to analyze the effect of new root canal based silicate cement, in rat teeth after late replantation, comparing with calcium hydroxide (CH) in preventing tooth root resorption. MATERIALS AND METHODS: The study group included 16 Wistar rats in which the upper right central incisors were extracted and were left on a worktable for 60 min, simulating a case of tooth avulsion, after had been anesthetized. One group, (Group I), the canals were filled with CH past, before replantation...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28416314/the-use-of-a-novel-approach-for-the-instrumentation-of-a-cone-beam-computed-tomography-discernible-lateral-canal-in-an-unusual-maxillary-incisor-case-report
#14
Antonis Chaniotis, Christos G Filippatos
Lateral and apical ramifications of the main root canal create potential pathways through which bacteria can spread and remain unaffected by treatment procedures. It is a challenge for the specialty to find techniques that can predictably reach, disinfect, and obturate these ramifications. Here, we report the use of a novel instrumentation approach to aid in the negotiation and management of a lateral canal discernible on cone-beam computed tomography (CBCT) in an unusual maxillary central incisor. A 23-year-old female patient was referred for evaluation and possible treatment of tooth 9...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28416307/the-efficacy-of-the-waveone-reciprocating-file-system-versus-the-protaper-retreatment-system-in-endodontic-retreatment-of-two-different-obturating-techniques
#15
Ben Jorgensen, Anne Williamson, Rene Chu, Fang Qian
INTRODUCTION: This ex vivo study aimed to evaluate the efficacy of retreating GuttaCore (Dentsply Tulsa Dental Specialties, Tulsa, OK) and warm vertically condensed gutta-percha in moderately curved canals with 2 different systems: ProTaper Universal Retreatment (Dentsply Tulsa Dental) and WaveOne (Dentsply Tulsa Dental). METHODS: Eighty mesial roots of mandibular molars were used in this study. The mesiobuccal canals in each sample were prepared to length with the WaveOne Primary file (Dentsply Tulsa Dental)...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28413595/effect-of-retreatment-on-the-push-out-bond-strength-of-mta-based-and-epoxy-resin-based-endodontic-sealers
#16
Hamidreza Yavari, Shahriar Shahi, Saeedeh Galledar, Mohammad Samiei, Maryam Janani
Background. Further studies on the adhesion properties of MTA-based materials seem necessary due to their growing use in endodontic treatment. This research aimed to assess the effect of retreatment on the bond strength of MTA-based (MTA Fillapex) and epoxy resin-based (AH Plus) sealers. Methods. ProTaper rotary files were applied to prepare the root canals of 80 human mandibular premolars. Then, the roots were randomly divided intotwo groups of A (n=40) and B (n=40), which were obturated with gutta-percha and MTA Filla-pex and AH Plus sealer, respectively...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28384974/a-comparative-study-of-the-quality-of-apical-seal-in-resilon-epiphany-se-following-intra-canal-irrigation-with-17-edta-10-citric-acid-and-mtad-as-final-irrigants-a-dye-leakage-study-under-vacuum
#17
Saravana Karthikeyan Balasubramanian, Vidya Saraswathi, Nidambur Vasudev Ballal, Shashi Rashmi Acharya, J Sivakumar Sampath, Sandeep Singh
INTRODUCTION: Adequate apical sealing ability of the root canal filling material is an essential requisite for a successful endodontic therapy. Various endodontic irrigants are used for the removal of smear layer before obturating with a solid core material, thereby, reducing microleakage and improving apical seal. Resilon, a synthetic material was developed as an alternative to replace the conventional gutta-percha (standard root canal filling material) and traditional sealers for the obturation of endodontically treated teeth...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28348620/in-vitro-evaluation-of-the-antibacterial-activity-of-five-sealers-used-in-root-canal-therapy
#18
Mohsen Hasheminia, Hamid Razavian, Hamid Mosleh, Babak Shakerian
BACKGROUND: Antibacterial activity is one of the important characteristics of an ideal root canal sealer. The aim of this study was to investigate the antibacterial activity of five different sealers against Enterococcus faecalis using two different methods. MATERIALS AND METHODS: The mineral trioxide aggregate (MTA) Fillapex, Tg-sealer, Endomethasone, AH-26, and RoekoSeal sealers were placed into the brain heart infusion (BHI) culture medium containing E. faecalis (PTCC1393)...
January 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28342477/effect-of-different-irrigation-systems-on-sealer-penetration-into-dentinal-tubules
#19
Luigi Generali, Francesco Cavani, Valentina Serena, Corinne Pettenati, Elena Righi, Carlo Bertoldi
INTRODUCTION: Different irrigation systems have been developed to improve the efficacy and distribution of the irrigants. The aim of this study was to compare the effect of conventional endodontic needle irrigation with other irrigant delivery and/or agitation systems on sealer penetration into dentinal tubules. METHODS: Fifty single-rooted teeth with round-shaped root canals were distributed in 5 homogeneous groups characterized by the different cleansing system used: conventional endodontic needle irrigation, EndoActivator, Irrisafe, Self-Adjusting File, and EndoVac...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28298989/effects-of-different-intra-canal-medicaments-on-the-push-out-bond-strength-of-endodontic-sealers
#20
Sahar Shakouie, Shahriar Shahi, Mohammad Samiei, Amin-Salem Milani, Mohammad-Frough Reyhani, Sara Paksefat, Mahsa Eskandarinekhad, Negin Ghasemi
BACKGROUND: One of the essential properties of the root canal sealers is the adhesion to root canal dentin and their higher bond strength decreases the microleakage. The aim of the present study was to compare the effect of Different Intracanal medicaments on the push out bond strength of AH26 and MTA Fillapex sealers. MATERIAL AND METHODS: A total of 104 one-rooted extracted human teeth were divided into 4 (n=26) experimental groups. After the cleaning and shaping, the root canals were filled with Ca(OH)2, triantibiotic paste (TAP), Metapex or 2% chlorhexidine gel for two weeks...
March 2017: Journal of Clinical and Experimental Dentistry
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