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https://www.readbyqxmd.com/read/29467418/exogenous-nitric-oxide-stimulates-the-odontogenic-differentiation-of-rat-dental-pulp-stem-cells
#1
Soichiro Sonoda, Yu-Feng Mei, Ikiru Atsuta, Atsushi Danjo, Haruyoshi Yamaza, Shion Hama, Kento Nishida, Ronghao Tang, Yukari Kyumoto-Nakamura, Norihisa Uehara, Toshio Kukita, Fusanori Nishimura, Takayoshi Yamaza
Nitric oxide (NO) is thought to play a pivotal regulatory role in dental pulp tissues under both physiological and pathological conditions. However, little is known about the NO functions in dental pulp stem cells (DPSCs). We examined the direct actions of a spontaneous NO gas-releasing donor, NOC-18, on the odontogenic capacity of rat DPSCs (rDPSCs). In the presence of NOC-18, rDPSCs were transformed into odontoblast-like cells with long cytoplasmic processes and a polarized nucleus. NOC-18 treatment increased alkaline phosphatase activity and enhanced dentin-like mineralized tissue formation and the expression levels of several odontoblast-specific genes, such as runt related factor 2, dentin matrix protein 1 and dentin sialophosphoprotein, in rDPSCs...
February 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29465283/augmented-reality-in-dentistry-a-current-perspective
#2
Ho-Beom Kwon, Young-Seok Park, Jung-Suk Han
Augmentation reality technology offers virtual information in addition to that of the real environment and thus opens new possibilities in various fields. The medical applications of augmentation reality are generally concentrated on surgery types, including neurosurgery, laparoscopic surgery and plastic surgery. Augmentation reality technology is also widely used in medical education and training. In dentistry, oral and maxillofacial surgery is the primary area of use, where dental implant placement and orthognathic surgery are the most frequent applications...
February 21, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29465073/-increasing-the-effectiveness-of-mandibular-molars-root-resection-surgery-using-retrograde-endodontic-revision
#3
A A Kulakov, V A Badalyan, Z M Stepanyan
The purpose of the present study was to increase the effectiveness of mandibular molars apical root resection surgery. The study included 21 patients with diagnosis 'persistent apical periodontitis', 'root cyst', in 11 cases surgery was performed with less traumatic access with piezoelectric surgery system for separation of cortical bone block and subsequent reposition after resection and retrograde root filling. The planning and procedure was described by 2 clinical cases. Bone block reposition surgical procedure showed clinical effectiveness and was considered as a most acceptable technique of root resection...
2018: Stomatologii︠a︡
https://www.readbyqxmd.com/read/29461636/dental-knowledge-and-dental-service-utilization-a-2-year-follow-up-study
#4
Najith Amarasena, Andrew John Spencer, Kaye F Roberts-Thomson, David S Brennan
OBJECTIVES: To investigate associations of dental knowledge with dental service utilization over 2 years in South Australians aged 45-54 years. METHODS: In 2004-2005, a random sample of 2469 adults aged 45-54 years from Adelaide, South Australia, who were selected from the Australian electoral roll was surveyed. The outcome variables were the numbers of visits and dental services received over 2 years. Data were analysed using log-binomial and Poisson regression...
February 20, 2018: Community Dentistry and Oral Epidemiology
https://www.readbyqxmd.com/read/29461166/radiographic-outcome-of-root-canal-treatment-of-canine-teeth-in-cats-32-cases-1998-2016
#5
Peter C Strøm, Boaz Arzi, Milinda J Lommer, Helena Kuntsi, Amy J Fulton Scanlan, Philip H Kass, Frank J M Verstraete
OBJECTIVE To describe the radiographic outcome of root canal treatment (RCT) of canine teeth of cats. DESIGN Retrospective case series. ANIMALS 32 cats with 37 canine teeth with complicated crown fractures that underwent RCT. PROCEDURES Medical record databases of 5 referral veterinary hospitals were searched to identify cats that underwent RCT between 1998 and 2016. Only cats that had at least 1 follow-up examination during which radiographs were obtained of the treated canine tooth or teeth were included in the study...
March 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29459149/root-canal-irrigants-and-medicaments-in-endodontic-malpractice-cases-a-nationwide-longitudinal-observation
#6
Outi Swanljung, Miira M Vehkalahti
INTRODUCTION: The aim of this study was to assess the role of root canal irrigants and medicaments in endodontic injuries verified in Finland and to estimate the rate of such events over time. METHODS: The study material comprised all endodontic injuries verified by the Patient Insurance Centre in 2002 to 2006 (n = 521) and 2011 to 2013 (n = 449). The data, based on patient documents scrutinized by 2 specialists in endodontics, included patients' and dentists' sex and age and the service sector...
February 16, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29458136/changes-in-anatomic-position-of-root-canal-orifices-in-pluriradicular-teeth-following-re-location-during-endodontic-treatment
#7
Darian Rusu, Petra Surlin, Stratul Stefan-Ioan, Marius Boariu, Calniceanu Horia, Adrian Kasaj, Cosmin Sinescu, Didilescu Andreea
Direct access to the root canals in posterior teeth for endodontic treatment is most frequently facilitated by the straightening of the coronal parts of the root canals, having as a consequence the relocation of the canal orifices on the map of the floor of the pulp chamber (Christie & Thompson, 1994). This procedure intentionally moves the coronal aspect of a canal away from the center of the chamber, while simultaneously removing internal dentin from the pulp chamber walls. The aim of this study was to evaluate the displacement resulting from the relocation of root canal orifices during the initial phase of rotary root canal treatment in molars using the dental operating microscope (DOM) and digital image processing...
February 16, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29456772/multidimensional-analysis-of-curved-root-canal-preparation-using-continuous-or-reciprocating-nickel-titanium-instruments
#8
Iussif Mamede-Neto, Álvaro Henrique Borges, Ana Helena Gonçalves Alencar, Marco Antonio Hungaro Duarte, Manoel Damião Sousa Neto, Carlos Estrela
Objective: To evaluate transportation (T) and centering ability (CA) of root canal preparations using continuous or reciprocating nickel-titanium endodontic files. Materials and Methods: Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divided into 6 groups (n=16) according to the rotary file used: 1. ProTaper Next; 2. ProTaper Gold; 3. Mtwo; 4. BioRaCe; 5. WaveOne Gold; 6. Reciproc. Root canals were prepared according to manufacturer's instructions...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29456401/management-of-complicated-crown-fracture-by-reattachment-using-fiber-post-minimal-intervention-approach
#9
Ambar W Raut, Vijay Mantri, Vaibhao I Shambharkar, Mitul Mishra
Anterior crown fractures are a common form of traumatic dental injuries that mainly affect the maxillary incisors, especially in children and adolescents. Complicated crown fractures although less common, pose a challenge to the clinician. The main objective while treating such cases is successful pain management and immediate restoration of function, esthetics and phonetics. Since the development of the adhesive dentistry, the patient's own fragment can be used to restore the fractured tooth. Reattachment of fractured tooth fragments offers a viable restorative alternative...
January 2018: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/29451648/3-d-finite-element-analysis-of-the-effects-of-post-location-and-loading-location-on-stress-distribution-in-root-canals-of-the-mandibular-1st-molar
#10
Hong Gi Yoon, Hyun Keun Oh, Dong-Yul Lee, Joo-Hee Shin
Objective The purpose of this study was to evaluate, by using finite element analysis, the influence of post location and occlusal loading location on the stress distribution pattern inside the root canals of the mandibular 1st molar. Material and Methods Three different 3-D models of the mandibular 1st molar were established: no post (NP) - a model of endodontic and prosthodontic treatments; mesiobuccal post (MP) - a model of endodontic and prosthodontic treatments with a post in the mesiobuccal canal; and distal post (DP) - a model of endodontic and prosthodontic treatments with a post in the distal canal...
2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29442626/synthesis-of-copper-nanowires-and-their-antimicrobial-activity-on-strains-isolated-persistent-endodontic-infections
#11
G Sánchez-Sanhueza, S Rebolledo, J López, M Encalada, H Bello-Toledo, D Rojas, C Medinam, M F Melendrez
Copper nanowires, Cu-NWs may have a good antimicrobial effect in endodontic treatment. The objective of this work was to synthesize, characterize and evaluate the antibacterial activity of Cu-NWs on strains obtained from human root canal. A wide distribution of Cu-NWs diameters from 30 to 90 nm was obtained with lengths ranging from 5 to 40 μm. Structural analysis of Cu-NWs showed crystalline planes, which corresponded to Cu, with preferential growth in the direction [110]. The geometric mean MICs was of 289...
July 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442187/effect-of-multiple-autoclave-cycles-on-the-surface-roughness-of-hyflex-cm-and-hyflex-edm-files-an-atomic-force-microscopy-study
#12
K Yılmaz, G Uslu, T Özyürek
AIM: To compare the effect of autoclave cycles on the surface topography and roughness of HyFlex CM and HyFlex EDM instruments using atomic force microscopy (AFM) analysis. METHODOLOGY: Eight new files of each brand were subdivided into four subgroups (n = 2/each subgroup). One group was allocated as the control group and not subjected to autoclave sterilization. The other three groups were subjected to different numbers (1, 5, and 10) of autoclave sterilization cycles...
February 13, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29442091/influence-of-light-transmission-through-fiber-posts-quantitative-analysis-microhardness-and-on-bond-strength-of-a-resin-cement
#13
Luís Fernando Dos Santos Alves Morgan, Marcos Barbosa Pinotti, Fernanda Morais Ferreira, Giovana Mongruel Gomes, Guilherme Costa Silva, Rodrigo De Castro Albuquerque, Allyson Nogueira Moreira
Context: Light transmission (LT) into deeper areas of the dentin root is limited. Aim: The aim of this study is to perform a quantitative investigation of the radial transmission of light (LT) through different fiber posts and its influence on the Knoop hardness number (KHN) and bond strength (BS) of a dual-cure self-adhesive resin cement at 3 different depths. Materials and Methods: Four types of fiber posts (2 translucent and 2 conventional) were used...
January 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29442086/effect-of-preoperative-ibuprofen-in-controlling-postendodontic-pain-with-and-without-low-level-laser-therapy-in-single-visit-endodontics-a-randomized-clinical-study
#14
Shahnaz Nabi, Khalid Amin, Aijaz Masoodi, Riyaz Farooq, Aamir Rashid Purra, Fayaz Ahmad Ahangar
Aim: The aim of this study is to evaluate the effect of low-level laser irradiation and ibuprofen in reducing the onset and severity of postoperative pain following single visit endodontics. Materials and Methods: One hundred and twenty patients were recruited for this study. Group A (n = 30) patients were administered 400 mg of ibuprofen orally 1 h before the institution of an endodontic procedure. Group B (n = 30) patients were given irradiation of a low-level laser at 50 Hz for 3 min after the standard endodontic procedure at the periapical region on both buccal and lingual aspect...
January 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29440958/dentists-perspectives-on-the-choice-of-treatment-of-teeth-with-apical-periodontitis
#15
Andreea Iuliana Kui, Anca Jiglău Labuneţ, Codruţa Popescu, Daniela Popa, Liana Lascu
Background and aim: Therapeutic decision in dentistry is a complex cognitive process for the practitioners because it involves taking into consideration several factors, including patients' preferences. The hypothesis of this study was that apicoectomy might be indicated more often than necessary and in order to confirm or invalidate it a survey was designed. We also aimed to explore whether the preferences were associated or not with dentist-related or practice-related characteristics...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29440793/use-of-an-amniotic-membrane-as-a-novel-barrier-in-a-tooth-with-a-questionable-prognosis
#16
Kanakamedala Anil Kumar, Muppalla Chakravarthy, Shalini Selvarajan, Theyagarajan Ramakrishnan, Geetha Ari
The chief goal of combination therapy using guided tissue regeneration along with bone grafts is to optimally and predictably regenerate the periodontal attachment apparatus. The evolution of regenerative therapy along with careful patient selection and treatment planning can have positive results even in cases which are not ideal. The present case report describes a tooth with a questionable prognosis treated successively by endodontic then periodontal therapy using an amniotic membrane along with a bone graft to treat an intrabony defect...
May 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29436559/natural-products-in-endodontics
#17
Ebtissam M Almadi, Amal A Almohaimede
Herbal remedies are used throughout the world, either in earlier or in recent times. The number of studies on this alternative therapeutic system increased in the last decades. In this paper, the relevant literature on the use of natural products in root canal therapy is revised from a MEDLINE database search. The uses of medicinal plants in endodontics include cleaning and disinfection of root canals, intracanal medicaments between appointments, sealer cements, and for removal of obturation material. Other studies showed the effect of natural products in pulpal and dentin repair...
February 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29435518/obliteration-after-recurrent-dental-trauma-in-a-7-year-old-patient-4-year-follow-up
#18
Mhd Said Mourad, Christian H Splieth, Mohammad Alkilzy
Traumatic dental injuries are reported to have a high prevalence regardless of the region or the age group. Concussion injuries are considered as moderate, but very frequent injuries. They are associated with a wide spectrum of pulpal reactions. Pulp canal obliteration in spite of negative sensitivity proves ongoing pulp vitality. This case report presents multiple traumatic dental injuries in both maxillary central incisors with two different pulpal reactions during a follow-up period of 4 years in a healthy 7-year-old girl...
February 12, 2018: Quintessence International
https://www.readbyqxmd.com/read/29435208/reasonable-outcome-of-avulsed-permanent-upper-incisor-after-seven-years-follow-up-period-a-case-report
#19
Egle Bendoraitiene, Sandra Zemgulyte, Marija Borisovaite
Background: Avulsion of the permanent teeth is one of the most serious oral health problems among active children and adolescents. Traumatized patients require immediate and correct treatment in order to restore damaged structures and function that have major impact on daily patient's life. As a result, proper guidelines and fast treatment methods are necessary. This case report discusses treatment of maxillary right central incisor with an open apex that had been avulsed and replanted...
October 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29432651/a-20-year-historical-prospective-cohort-study-of-root-canal-treatments-a-multilevel-analysis
#20
C Prati, C Pirani, F Zamparini, M R Gatto, M G Gandolfi
AIM: To evaluate the number of healthy and functional root filled teeth of patients included in a recall program for at least 20 years. METHODOLOGY: Teeth were root filled by a single specialist following manual canal instrumentation, lateral/vertical compaction of gutta-percha and restored with glass-ionomer cements and bonding system/composite resin. In a large percentage of teeth a metal-ceramic crown was positioned during follow-up. Patients included in the recall program (n=130) were blindly assessed both clinically and radiographically (every 2 years) to evaluate clinical symptoms and periapical status (PAI)...
February 12, 2018: International Endodontic Journal
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