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endodontics, root canal,

Victor Feliz Pedrinha, Juliana Melo da Silva Brandão, Oscar Faciola Pessoa, Patrícia de Almeida Rodrigues
Advances in endodontics have enabled the evolution of file manufacturing processes, improving performance beyond that of conventional files. In the present study, systems manufactured using state of the art methods and possessing special properties related to NiTi alloys ( i.e ., CM-Wire, M-Wire and R-Phase) were selected. The aim of this review was to provide a detailed analysis of the literature about the relationship between recently introduced NiTi files with different movement kinematics and shaping ability, apical extrusion of debris and dentin defects in root canal preparations...
2018: Open Dentistry Journal
Bálint Tordai, Károly Schreindorfer, Edina Lempel, Károly Krajczár
OBJECTIVE: The goal was to investigate the clinical value of two-dimensional radiographs and different radiographic measurement techniques before instrument removal with a microsonic technique. The aim was to find an easy-to-use technique for predicting the success of removal and case evaluation. Additionally the quality of root canal filling after instrument removal was assessed. METHOD AND MATERIALS: This retrospective study analyzed patients' records and preoperative and postoperative periapical radiographs made using the paralleling technique...
2018: Quintessence International
Nova Nexhmije Ajeti, Teuta Pustina-Krasniqi, Sonja Apostolska
OBJECTIVES: During the treatment of chronic apical periodontitis and pulp necrosis the main role is to irrigate the root canal. AIM: The aim of this in vivo study was to irrigate with 0.9% NaCl (Natrium Chloride), 2.5 % NaOCl (Sodium Hypochlorite Solution, Sigma Aldrich - Germany) and 2% CHX (Chlorhexidine Digluconate Solution, Sigma Aldrich - Spain) combined with Gaseous Ozone (Prozone WH, Austria). MATERIAL AND METHODS: This study was realised in the University Dentistry Clinical Centre of Kosovo (UDCCK), respectively in the Department of Endodontic and Dental Pathology, Dental Branch, Faculty of Medicine, Prishtina, Kosovo...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
Merete Markvart, Helena Fransson, Lars Bjørndal
OBJECTIVE: The aim of this study was to re-assess the adoption of certain endodontic technology and central treatment principles of root canal treatments as advocated by guidelines presented by the European Society of Endodontology. MATERIAL AND METHODS: The questionnaire included the same questions in 2003 and 2013. The general dental practitioners (GDPs) anonymously reported how frequent ('often', 'occasionally', and 'never') they used certain endodontic technology and adhered to central treatment principles...
March 9, 2018: Acta Odontologica Scandinavica
Chengjun Sun, Jicheng Sun, Minmin Tan, Bo Hu, Xiang Gao, Jinlin Song
OBJECTIVES: The aims of this systematic review were to compare the incidence and intensity of postoperative pain after single-visit root canal treatment using manual, rotary and reciprocating instruments. METHODS: An extensive literature search in PubMed, EMBASE, Cochrane Library, and Web of Science was performed to identify investigations that evaluated the effects of different instruments on post-endodontic pain. Meta-analyses and additional analyses, including subgroup and sensitivity analyses, were conducted...
March 7, 2018: Oral Diseases
Franziska Haupt, M Hülsmann
OBJECTIVES: To assess the consistency of electronic determination of endodontic working length obtained from four identical electronic root canal length measurement devices (ERCLMD) from five different types of ERCLMD each under various in vitro conditions. MATERIALS AND METHODS: Eight extracted teeth, seven single-rooted teeth, and one molar were accessed. Root length was measured and instruments were inserted and fixed with the tip placed beyond and short of the apical constriction, in roots with an artificial perforation or an open apex...
March 7, 2018: Clinical Oral Investigations
Thaís Emanuelle Bakaus, Yançanã Luizy Gruber, Alessandra Reis, Osnara Maria Mongruel Gomes, Giovana Mongruel Gomes
The aim of this study was to compare in vitro the bond strength (BS) between fiberglass posts and flared root canals reinforced with different materials. The roots of 48 premolars were endodontically treated. After one week, the root canals were prepared to simulate an oversized root canal, except for the positive control group (PCG), which was cemented with a prefabricated fiber post (PFP) compatible with the root canal size, simulating an ideal adaptation. The other samples (n=8/group) were used to test alternative restorative techniques for filling root canals: negative control group (NCG [PFP with a smaller diameter than of the root canal]), composite resin group - CRG, bulkfill group - BFG, self-adhesive cement group - SAG, and glass ionomer group - GIG...
March 1, 2018: Brazilian Oral Research
Daniela Atili Brandini, Marina Fuzette Amaral, Caio Vinícius Lourenço Debortoli, Sônia Regina Panzarini
The aim of this study is to evaluate the action of paramonochlorophenol associated with Furacin followed by calcium hydroxide (CH) dressing in the control of inflammatory root resorption in cases of immediate tooth replantation with delayed endodontic treatment. A total of 28 incisors of 3 male dogs were extracted and replanted after 15 minutes, and randomly divided into 3 groups: Group I (n = 8) - endodontic treatment was performed before the extraction and replantation; Group II (n = 10) - endodontic treatment was performed 30 days after replantation and the root canal was filled with CH dressing; Group III (n = 10) - endodontic treatment was performed 30 days after replantation and root canals received temporary medication of paramonochlorophenol-Furacin followed by CH dressing...
March 1, 2018: Brazilian Oral Research
Karen G Karakov, Kristina S Gandylyan, Emiliya E Khachaturyan, Tatyana N Vlasova, Artur V Oganyan, Alla V Eremenko
BACKGROUND: The article describes the results of research on efficiency of using antimicrobial photodynamic therapy in treatment of chronic periodontitis. METHODS: 88 root canals in 84 patients were examined and treated. The diagnosis of chronic apical periodontitis was made based on anamnesis, data of clinical and instrumental examination, assessment of X-ray images. Patients were randomly selected to comply with the purity of the experiment. RESULTS: It was found that the use of antimicrobial photodynamic therapy leads to a reduction of medical cases accompanied by pain reaction after a one-stage treatment of chronic periodontitis when compared with data of the patients treated with calcium hydroxide preparation...
February 2018: Journal of the National Medical Association
M Durski, M Metz, G Crim, S Hass, R Mazur, S Vieira
The purpose of this study was to evaluate the push-out bond strength of two different adhesive cements (total etch and self-adhesive) for glass fiber post (GFP) cementation in simulated, long-term service (thermocycling) when the root canal is treated with chlorhexidine before cementation. One hundred twenty premolar specimens with a single root canal were selected, endodontically treated, and shaped for GFP cementation (n=120). The specimens were randomly placed into one of 12 groups (10 specimens each) according to cement (T = total-etch RelyX ARC or S = self-adhesive RelyX Unicem), treatment with chlorhexidine (N or Y: without or with), and number of thermal cycles (00, 20, or 40: 0, or 20,000 or 40,000 cycles): 1...
March 2018: Operative Dentistry
Yu-Yao Teoh, Basil Athanassiadis, Laurence J Walsh
The anti-microbial activity of calcium hydroxide pastes used in endodontics is dependent on establishing high levels of hydroxyl ions in dentine. This study investigated hydroxyl ion diffusion from different commercial calcium hydroxide pastes using a novel colourimetric method. In this method, human tooth roots were stained with anthocyanin dye, which changed their colour according to the local pH conditions. Prepared root canals were filled with pastes formulated with the vehicle of water (Pulpdent™, Calasept Plus™), polyethylene glycol (PEG) (Calmix™) or a mixture of water, PEG and ibuprofen (Odontocide™)...
February 27, 2018: Materials
Adriana D Cruz, Maria Cn Castro, Marcelo F Aguiar, Ludmilla S Guimarães, Cinthya C Gomes
OBJECTIVES: To assess the radiographic appearances of the endodontic treatment in different room lighting conditions and image display devices. METHODS: After approval by Research Ethical Board, 20 images were obtained from blocks with one endodontically treated tooth. The 20 endodontic treatments were made in the laboratory, of those randomly selected, 10 teeth (50% of sample) received some quality defect in three parameters as apical limit, adaptation to root canal and homogeneity of the root canal filling material...
March 1, 2018: Dento Maxillo Facial Radiology
Taha Özyürek, Koray Yılmaz, Gülşah Uslu, Gianluca Plotino
Objectives: To examine the surface topography of intact WaveOne (WO; Dentsply Sirona Endodontics) and WaveOne Gold (WOG; Dentsply Sirona Endodontics) nickel-titanium rotary files and to evaluate the presence of alterations to the surface topography after root canal preparations of severely curved root canals in molar teeth. Materials and Methods: Forty-eight severely curved canals of extracted molar teeth were divided into 2 groups ( n = 24/each group). In group 1, the canals were prepared using WO and in group 2, the canals were prepared using WOG files...
February 2018: Restorative Dentistry & Endodontics
Maryam Pourhajibagher, Abbas Bahador
BACKGROUND: It is essential to identify the root canal microbial diversity and count due to the polymicrobial nature of the primary endodontic infection that is associated with the microbial diversity and increased resistance to the antimicrobial agents. Photo-activated disinfection (PAD), also known as antimicrobial photodynamic therapy, is a new promising non-antibiotic approach, studied to prevent microbial resistance and treatment failure. MATERIALS AND METHODS: In this study, we investigated the effect of PAD on reduction of microbial diversity and count, related with primary endodontic infections...
February 24, 2018: Photodiagnosis and Photodynamic Therapy
M M Zhang, Y D Zheng, Y H Liang
OBJECTIVE: To present a prognostic model for evaluating the outcome of root canal treatment in teeth with pulpitis or apical periodontitis 2 years after treatment. METHODS: The implementation of this study was based on a retrospective study on the 2-year outcome of root canal treatment. A cohort of 360 teeth, which received treatment and review, were chosen to build up the total sample size. In the study, 143 teeth with vital pulp and 217 teeth with apical periodontitis were included...
February 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
P Montero-Miralles, J Martín-González, O Alonso-Ezpeleta, M C Jiménez-Sánchez, E Velasco-Ortega, J J Segura-Egea
Regenerative endodontic procedures (REPs) are biologically based procedures planned to replace damaged tissues, including dentinee and root structures, as well as cells of the pulp-dentine complex. Effective sterilization of the root canal is essential in REPs, and antibiotics have been widely used to disinfect root canals. The aim of this paper was to review the scientific literature on 1) Effectiveness of antibiotics used in REPs against bacteria implicated in endodontic disease; 2) Scientific evidence supporting the use of topical antibiotics in REPs; 3) Clinical implications of the use of antibiotics in REPs and the possible side effects; 4) Effect of antibiotics on dental pulp stem cells; and 5) Ongoing research on the use of antibiotics in REPs...
February 26, 2018: International Endodontic Journal
M Maddalone, M Gagliani, C L Citterio, A Pellegatta, M Del Fabbro
AIM: To evaluate retrospectively the prevalence of vertical root fractures (VRF) in a cohort of patients during apical surgery and the factors possibly associated with VRF. METHODOLOGY: The sample consisted of 944 root filled teeth belonging to 768 patients (49.3% males and 50.7% females; mean age 43.5±11.2 years, range 22-68 years), consecutively referred for endodontic surgery over a six-year period. All patients underwent a clinical assessment of their signs and symptoms...
February 25, 2018: International Endodontic Journal
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
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
Darian Rusu, Petra Surlin, Stefan-Ioan Stratul, Marius Boariu, Horia Calniceanu, Adrian Kasaj, Cosmin Sinescu, Andreea Didilescu
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
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