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https://www.readbyqxmd.com/read/28530469/rapid-bacterial-detection-during-endodontic-treatment
#1
D B Herzog, N A Hosny, S A Niazi, G Koller, R J Cook, F Foschi, T F Watson, F Mannocci, F Festy
Bacteria present in the root canal (RC) space following an RC treatment (RCT) can lead to persistent infections, resulting in treatment failure and the need for reintervention or extraction. Currently, there are no standardized methods in use to clinically detect bacterial presence within RC spaces. The use of paper point sampling and fluorescence staining was shown to be a rapid method, able to detect residual bacteria following treatment. The study demonstrated that Calcein acetoxymethyl (AM) proved to be a suitable dye for detecting vital bacteria within mature endodontic biofilms, with an improved sensitivity over colony-forming unit counting in a stressed biofilm model...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28528141/portland-cement-induces-human-periodontal-ligament-cells-to-differentiate-by-upregulating-mir-146a
#2
Min-Ching Wang, Li-Yin Yeh, Wen-Yu Shih, Wan-Chun Li, Kuo-Wei Chang, Shu-Chun Lin
BACKGROUND/PURPOSE: Bioaggregates such as Portland cement (PC) can be an economical alternative for mineral trioxide aggregate (MTA) with additional benefit of less discoloration. MTA has been known to induce differentiations of several dental cells. MicroRNAs are important regulators of biological processes, including differentiation, physiologic homeostasis, and disease progression. This study is to explore how PC enhances the differentiation of periodontal ligament (PDL) cells in microRNAs level...
May 18, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28527851/intentional-replantation-of-an-avulsed-immature-permanent-incisor-a-case-report
#3
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Marcelo de Morais Vitoriano
This case report discusses the successful endodontic treatment of an open apex maxillary right permanent central incisor that had been avulsed and incorrectly replanted in a 7-year-old patient. The tooth was carefully re-extracted followed by cleaning of the alveolar socket and immediate replantation. However, pulp necrosis was diagnosed, and regenerative endodontic treatment was performed. The root canal system was disinfected by passive ultrasonic irrigation with 2.5% sodium hypochlorite. At the first visit, the tooth was repositioned and immobilized with an appropriate semirigid splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28527848/combined-therapy-for-a-rare-case-of-type-iii-dens-invaginatus-in-a-mandibular-central-incisor-with-a-periapical-lesion-a-case-report
#4
Ping Zhang, Xin Wei
Type III dens invaginatus has a complex root canal structure that poses a greater challenge when endodontic treatment is necessary. Type III dens invaginatus rarely affects mandibular central incisors. In this case, we reported a combined therapy of type III dens invaginatus in a mandibular central incisor with a periapical lesion. Cone-beam computed tomographic (CBCT) imaging was used in the diagnosis and management of the unusual anatomy of dens invaginatus. First, the hard tissue of the dens invaginatus was removed using a dental operating microscope...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28527847/self-repaired-process-of-a-traumatized-maxillary-central-incisor-with-pulp-infarct-after-horizontal-root-fracture-monitored-by-laser-doppler-flowmetry-combined-with-tissue-oxygen-monitor
#5
Qian Liao, Wenjun Ye, Junli Yue, Xiaoxi Zhao, Ling Zhang, Lan Zhang, Dingming Huang, Qinghua Zheng
Achieving a precise diagnosis of the pulp status of traumatized teeth is difficult. The time to interfere through endodontic treatment for these teeth is greatly dependent on the doctor's experience. A 24-year-old male patient suffered a traumatic injury to tooth #9 that resulted in an apical root horizontal fracture 3 days before he came to the hospital. The injured tooth showed no response to pulp sensitivity testing at the first visit and was discolored 1 week later. Tooth #9 was immobilized to its adjacent teeth for 4 weeks by a composite splint...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28527841/a-comparison-of-2-and-3-dimensional-healing-assessment-after-endodontic-surgery-using-cone-beam-computed-tomographic-volumes-or-periapical-radiographs
#6
Tom Schloss, David Sonntag, Meetu R Kohli, Frank C Setzer
INTRODUCTION: The aim of this study was to compare the assessment of healing after endodontic microsurgery using 2-dimensional (2D) periapical films versus 3-dimensional (3D) cone-beam computed tomographic (CBCT) imaging. METHODS: The healing of 51 teeth from 44 patients was evaluated using Molven's criteria (2D) and modified PENN 3D criteria. The absolute area (2D) and volume (3D) changes of apical lesions preoperatively and at follow-up were calculated by segmentation using OsiriX software (Pixmeo, Bernex, Switzerland) and ITK-Snap (free software)...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28514342/-evaluation-of-main-and-additional-root-canal-curvature-in-maxillary-molars
#7
O A Levenets, V V Alyamovskiy, A A Levenets, S A Ovchinnikova
The aim of the study was to investigate the degree of the main and additional root canal curvatures of the maxillary molars in Krasnoyarsk population. Main and additional root canal curvature was measured in 48 maxillary first molars (M1) and 122 second molars (M2) with cone beam computer tomography. In total 476 measurements were taken for M1 and 1038 for M2 (all measurements were doubled in sagittal and coronal views). M2 showed more variety of root canal morphology and significantly higher proportion of additional root canals...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28514341/-endodontic-treatment-efficacy-enhancement-by-means-of-instrumental-physiotherapy
#8
I M Makeeva, A G Volkov, N Zh Dikopova, E G Talalaev
The article describes in detail and examines the prospects of such methods as electroodontodiagnosis, diathermocoagulation and apex-phoresis. It proves the necessity of development and standardization of devices for the mentioned treatment modalities that will improve the effectiveness an quality of caries complications treatment.
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28513897/quality-and-survival-of-direct-light-activated-composite-resin-restorations-in-posterior-teeth-a-5-to-20-year-retrospective-longitudinal-study
#9
REVIEW
Ernesto Borgia, Rosario Baron, Jose Luis Borgia
PURPOSE: To analyze the clinical success of direct light-activated composite resin restorations in posterior teeth. The quality of the margins and occlusal surfaces were evaluated, as well as their survival, according to their extensions and locations. The clinical performance of posterior composite resin restorations with different compositions were compared. All restorations were performed by the first author in his private practice, in a 5- to 20-year period. MATERIALS AND METHODS: Several types of composite resins, provided by different manufacturers, were placed in posterior teeth, after isolation with rubber dams...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28513520/clinical-assessment-of-mineral-trioxide-aggregate-in-the-treatment-of-deep-carious-lesions
#10
U K Vural, A Kiremitçi, S Gökalp
OBJECTIVE: This clinical study aimed to assess the effectiveness of mineral trioxide aggregate (MTA) and calcium hydroxide (Ca[OH]2) in the treatment of deep carious lesions using the direct complete caries excavation technique. SUBJECTS AND METHODS: Hundred permanent molars/premolars were capped either with Ca (OH)2 (n = 49) or MTA (n = 51) and restored with composite resin in 73 patients. Periapical radiographs were taken prior to the treatment, at 6 months and 12 months...
May 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28512652/comparison-of-simplistic-biofilm-models-for-%C3%A2-evaluating-irrigating-solutions
#11
Maximilian Gänsbauer, Andreas Burkovski, Matthias Karl, Tanja Grobecker-Karl
OBJECTIVE: Many innovations have recently been implemented in the field of endodontics, often based on a variety of in-vitro/ex-vivo test setups. It was the goal of this research to compare different biofilm models for evaluating the effectiveness of rinsing solutions. METHOD AND MATERIALS: Three different models have been applied in this study, including petri dishes with nutrient medium, arrays of human dentin disks, and split bovine root segments. The susceptibility of biofilms formed by Enterococcus faecalis to commonly used endodontic irrigants was tested...
May 16, 2017: Quintessence International
https://www.readbyqxmd.com/read/28512497/management-of-perforating-idiopathic-internal-root-resorption
#12
Dalia Abdullah, Farah Eziana Hussein, Huwaina Abd Ghani
This case report describes the endodontic treatment of an idiopathic perforated internal root resorption. A 24-year-old male Malay patient presented with internal root resorption of two of his anterior teeth. The medical history was non-contributory and he had no history of traumatic injury or orthodontic treatment. Cone-beam computed tomography (CBCT) determined the nature, location and severity of the resorptive lesion. Non-surgical root canal treatment of tooth #22 and combined non-surgical and surgical approach for tooth #11 were carried out using mineral trioxide aggregate (MTA) as the filling material...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512496/nonsurgical-management-of-a-large-periapical-lesion-a-case-report
#13
Sajedeh Ghorbanzadeh, Hengameh Ashraf, Sepanta Hosseinpour, Fatemeh Ghorbanzadeh
This case report describes the non-surgical management of a large cyst-like periapical lesion in the mandible of a 16-year-old female with the chief complaint of periodic swelling and pus drainage from the mandibular anterior region gingivae with no history of pain and traumatic accident in this area. Both mandibular central incisors had extensive caries. Root canals of both mandibular central incisors were filled with calcium hydroxide. After 10 days, endodontic therapy was carried out on both teeth. Clinical and radiographic re-evaluations at 3 and 12 months revealed progressing bone healing...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512495/endodontic-management-of-open-apex-teeth-using-lyophilized-collagen-sponge-and-mta-cement-report-of-two-cases
#14
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/28512492/in-vitro-sealing-properties-of-calcium-enriched-mixture-and-mineral-trioxide-aggregate-orifice-barriers-during-intra-coronal-bleaching
#15
Negar Moghadam, Amir Ardalan Abdollahi, Hoda Aghabalayi Fakhim, Zahra Borna
INTRODUCTION: This study aimed at evaluating the sealing properties of calcium-enriched mixture (CEM) compared to mineral trioxide aggregate (MTA) as a cervical barriers in intra-coronal bleaching. METHODS AND MATERIALS: In this in vitro study, endodontic treatment was performed on 60 extracted human incisors and canines without canal calcification, caries, restorations, resorption or cracks. The teeth were then randomly divided into two experimental groups and two control groups (n=15)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512489/effect-of-deep-cryogenic-treatment-on-cyclic-fatigue-of-endodontic-rotary-nickel-titanium-instruments
#16
Mohammad Yazdizadeh, Masoumeh Skini, Seyyed Mohsen Hoseini Goosheh, Mansour Jafarzadeh, Milad Shamohammadi, Vahid Rakhshan
INTRODUCTION: Cyclic fatigue is the common reason for breakage of rotary instruments. This study was conducted to evaluate the effect of cryogenic treatment (CT) in improving the resistance to cyclic fatigue of endodontic rotary instruments. METHODS AND MATERIALS: In this in vitro study, 20 RaCe and 20 Mtwo files were randomly divided into two groups of negative control and CT. CT files were stored in liquid nitrogen at -196(°)C for 24 h, and then were gradually warmed to the room temperature...
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
#17
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/28512486/students-knowledge-comprehension-after-implementation-of-live-conventional-demonstration-video-teaching-and-video-assisted-instruction-methods-in-endodontic-practice
#18
Nahid Mohammadzadeh Akhlaghi, Zohreh Khalilak, Mehdi Vatanpour, Amirabbas Moshari, Saman Ghaffari, Mohammad Sadegh Namazikhah
INTRODUCTION: Video-assisted clinical instruction (VACID) has been found to be a beneficial teaching tool for various fields in dentistry. The aim of this interventional study was to compare the efficacy of live conventional demonstration (CD), video teaching, and VACID (video with explanation) methods in teaching of root canal treatment to undergraduate dental students. METHODS AND MATERIALS: Forty-two undergraduate senior dental students participated in this study...
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
#19
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/28512478/subcutaneous-reaction-of-rat-tissues-to-nanosilver-coated-gutta-percha
#20
Mohammad Ali Mozayeni, Omid Dianat, Shahin Tahvildari, Maryam Mozayani, Payam Paymanpour
INTRODUCTION: Gutta-percha (GP), is a neutral and non-toxic material. The aim of this animal study was to compare the biocompatibility of nanosilver coated GP (NS-GP) with conventional GP in subcutaneous tissues in a rat model. METHODS AND MATERIALS: Conventional GP and NS-GP were subcutaneously implanted in the backs of 20 male Wistar rats (n=10). A control animal was assigned for each trial period. Ten animals were sacrificed after 7 and 30 days and light microscopic evaluation of tissue reaction to NS-GP (n=20) and conventional GP (n=20) was accomplished...
2017: Iranian Endodontic Journal
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