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International Endodontic Journal

J Durham, S J Stone, L J Robinson, R Ohrbach, D R Nixdorf
AIM: To develop and preliminarily evaluate a new screening instrument for Atypical Odontalgia (AO) or Persistent Dentoalveolar Pain Disorder (PDAP). To evaluate the instrument's performance in detecting AO/PDAP amongst a heterogeneous group of orofacial pain conditions and pain-free controls and empirically compare its performance with an established neuropathic screening instrument (S-LANSS) which is the best available standard. METHODS: The study design was cross-sectional; subjects recruited included a convenience sample of pain free controls (n=21) and four groups of orofacial pain conditions: AO/PDAP (n=22); Trigeminal Neuralgia (n=21); Temporomandibular Disorder (n=41); and Acute Dental Pain (n=41)...
September 19, 2018: International Endodontic Journal
S E D M Saber, M H M Ahmed, M Obeid, H M A Ahmed
AIM: To investigate the number of roots and root canal configurations using two coding systems and the root canal diverging and merging levels in extracted maxillary premolars in an Egyptian subpopulation using cone beam computed tomography (CBCT). METHODOLOGY: A total of 700 maxillary premolars were examined using CBCT in an Egyptian subpopulation. The number of roots was identified, and root canal configurations were classified according to Vertucci's classification and a new system for classifying root and canal morphology...
September 17, 2018: International Endodontic Journal
G Faria, K S Viola, H Coaguila-Llerena, L R A Oliveira, R T Leonardo, A J Aranda-García, J M Guerreiro-Tanomaru
AIM: To assess the penetration of sodium hypochlorite (NaOCl) gel or NaOCl solutions with surfactants, and the effect of passive ultrasonic irrigation (PUI) on penetration into dentinal tubules. METHODOLOGY: Bovine incisor root canals were instrumented, the roots sectioned and the dentine blocks obtained were stained with crystal violet. Dentine blocks (n = 10 per group) were exposed to 3% NaOCl gel or 3% NaOCl solution for 10 and 20 min. Other dentine blocks (n = 10 per group) were exposed to Chlor-Extra (6% NaOCl + surfactant), 6% NaOCl, 2...
September 16, 2018: International Endodontic Journal
R Dal-Fabbro, M Marques-de-Almeida, L Cosme-Silva, E Ervolino, L T A Cintra, J E Gomes-Filho
AIM: To investigate the effect of chronic alcohol consumption on apical periodontitis in rats. METHODOLOGY: Thirty-two male Wistar rats were arranged into 4 groups: Control (C): without apical periodontitis and non-alcoholic diet; (AL): without apical periodontitis and alcoholic diet; (AP): with apical periodontitis and non-alcoholic diet; (AP+AL): with apical periodontitis and alcoholic diet. Alcoholic solution at 20% was given to the AL and AP+AL groups as the sole source of hydration throughout the experiment...
September 14, 2018: International Endodontic Journal
S Askerbeyli Örs, H Aksel, S Kucukkaya Eren, A Serper
AIM: To compare the effect of furcal perforations of various sizes on the biomechanical response of mandibular first molars with or without periodontal bone loss at the furcal region via 3-dimensional (3D) finite element analysis (FEA). METHODOLOGY: The 3D geometric basic model was reconstructed from the micro-computed tomographic images of an extracted mandibular first molar. Five different models were constructed from this molar in group 1 as follows: intact molar model, root filled (RCF) model and 3 models with furcal perforations (1, 2, and 3 mm in diameter) repaired with a calcium silicate-based cement (CSC)...
September 7, 2018: International Endodontic Journal
R S Emara, H M Abou El Nasr, R M El Boghdadi
AIM: To assess the effect of occlusal reduction on postoperative pain following two visits root canal treatment in posterior mandibular teeth with symptomatic irreversible pulpitis and symptomatic apical periodontitis in a randomized clinical trial. METHODOLOGY: This trial was conducted in the outpatient clinic of the Endodontic Department of Faculty of Oral and Dental Medicine, Cairo University in Egypt. Forty four patients diagnosed with symptomatic irreversible pulpitis and symptomatic apical periodontitis were randomly assigned into two equal groups...
September 1, 2018: International Endodontic Journal
S Patel, P Lambrechts, H Shemesh, A Mavridou
This Position Statement represents a consensus of an expert committee convened by the European Society of Endodontology (ESE) on External Cervical Resorption (ECR). The statement is based on current clinical and scientific evidence as well as the expertise of the committee. The primary aim is to provide the clinician with evidence-based criteria on aetiology, histopathology, clinical presentation and management of ECR, and also to highlight areas where there is minimal evidence. Previously published review articles provide more detailed background information and the basis for this position statement (International Endodontic Journal https://doi...
September 1, 2018: International Endodontic Journal
D Cabanillas-Balsera, J Martín-González, P Montero-Miralles, B Sánchez-Domínguez, M C Jiménez-Sánchez, J J Segura-Egea
Previous studies have found an association between the outcome of root canal treatment (RCT) and diabetic status. This systematic review and meta-analysis aimed to analyse the potential relationship between diabetes and the occurrence of extracted root filled teeth (RFT). The clinical PICO question was as follows: in adult patients with RFT, does the absence or presence of diabetes influence the prevalence of RFT extraction? The key words used in the systematic search were as follows: (Diabetes OR Diabetes Mellitus OR Hyperglycaemia OR Diabetic) AND (Endodontic OR Endodontics OR Endodontic Treatment OR Root Canal Treatment OR Root Canal Preparation OR Root Canal Therapy OR Root Filled Teeth OR Endodontically Treated Teeth) AND (Extraction OR Retention OR Survival OR Success OR Failure OR Outcome)...
August 31, 2018: International Endodontic Journal
M Raoof, S Soofiabadi, M Abbasnejad, R Kooshki, S Esmaeili-Mahani, M Mansoori
AIM: To characterize the role of orexin 1 receptors (OX1Rs) in ventrolateral periaqueductal gray matter (vlPAG) on modulation of capsaicin induced pulpal nociception in rats. METHODOLOGY: Sixty six adult male Wistar rats (2 months old) weighed between 230-260 g were used. The animals were cannulated for microinjection of drugs into the ventrolateral periaqueductal gray matter. Pulpalgia was induced by intradental application of capsaicin solution (100 μg) into the incisor of rats...
August 28, 2018: International Endodontic Journal
I Rahbar, M Abbasnejad, J Haghani, M Raoof, R Kooshki, S Esmaeili-Mahani
AIM: To assess the effects of central administration of α-pinene alone and in combination with either bicuculline or naloxone, as GABA A and μ opioid receptor antagonists respectively, on capsaicin-induced dental pulp stimulation in rats. METHODOLOGY: Forty eight adult male Wistar rats aged 2 months (230-270 g) were cannulated via their lateral ventricles for the central administration of the drugs. α-Pinene was injected at 0.1, 0.2 and 0.4 μM. Then, dental pulp stimulation was induced by intradental application of capsaicin solution (100 μg), and nociceptive scores were recorded for up to 40 min...
August 28, 2018: International Endodontic Journal
A D Morgan, Y-L Ng, M Odlyha, K Gulabivala, L Bozec
AIM: To establish a method using Fourier Transform Infra-Red spectroscopy (FTIR) to characterise the nature and depth of changes in dentinal collagen following exposure to sodium hypochlorite (NaOCl) during root canal irrigation in an ex-vivo model. METHODOLOGY: FTIR was used to assess the changes in dentinal collagen when the root canal was exposed to NaOCl. The changes in dentinal collagen caused by NaOCl irrigation of root canals in transverse sections of roots, at 0...
August 25, 2018: International Endodontic Journal
Y Wang, C Chen, H L Zang, Y H Liang
AIM: To evaluate the recovery effect of proanthocyanidin (PA) on microtensile bond strength (μTBS) to sodium hypochlorite (NaOCl)-treated dentine. METHODOLOGY: Fifty-five freshly extracted third molars with intact dental crowns, no caries or restorations were sectioned to expose a sound middle layer of dentine and were randomly divided into 11 groups. In the blank control group, dentine surfaces were immersed in deionized water for 20 min. In the negative control group, dental surfaces were immersed in 5...
August 25, 2018: International Endodontic Journal
P J van der Vyver, F Paleker, M Vorster, F A de Wet
AIM: To compare (i) canal-centring ability and transportation of K-files, ProGlider and One-G files after glide path preparation in curved root canals; (ii) changes in canal volume after glide path preparation, using micro-computed tomography. METHODOLOGY: A total of 135 mesiobuccal root canals of maxillary molars were randomly divided into three glide path groups: (i) pre-curved sizes 10-15-20 K-files (n = 45); (ii) size 10 K-file followed by One-G (n = 45); and (iii) size 10 K-file followed by ProGlider (n = 45)...
August 22, 2018: International Endodontic Journal
G Plotino, T Özyürek, N M Grande, M Gündoğar
AIM: To investigate whether a minimally invasive basic root canal preparation technique has an influence on root canal cleanliness in extracted mandibular molar teeth. METHODOLOGY: A total of 80 root canals (40 mesio-buccal and 40 mesio-lingual) from 40 mandibular molars were included. The teeth were divided equally into four different experimental groups depending on the subsequently root canal preparation technique: Group 1: a basic preparation was performed up to size 20, ...
August 21, 2018: International Endodontic Journal
G De-Deus, F G Belladonna, M Simões-Carvalho, D M Cavalcante, C N M J Ramalho, E M Souza, R T Lopes, E J N L Silva
AIM: To assess the shaping ability of the new XP-endo Shaper instrument after different working times. METHODOLOGY: Ten mesial roots of mandibular molars were scanned in a micro-computed tomographic device and prepared using the XP-endo Shaper instrument up to the working length (WL) according to the manufacturer's recommendation. Then, each specimen was subjected to an extra 15, 30 and 45 s of active instrumentation at the WL. Postoperative scans were performed after canal preparation at each time-point...
August 17, 2018: International Endodontic Journal
A P Lira de Farias Freitas, Y Wanderley Cavalcanti, F C Mariz da Costa, L Rangel Peixoto, A M Araújo Maia, K Rovaris Silva, P Meira Bento, D Pita de Melo
AIM: To evaluate the artefact intensity in CBCT images of two alloys used in metal posts scanned using different exposure parameters. METHODOLOGY: The sample consisted of 20 single-rooted teeth divided into two groups for use with either a NiCr post or AgPd post. All teeth were scanned with and without their corresponding metal posts and with and without the presence of an extra restored tooth in the arch. The samples were scanned using CS 9000 3D scanner with two exposure protocols: 85kV 6...
August 14, 2018: International Endodontic Journal
E Wigsten, P Jonasson, T Kvist
AIM: To study patient- and tooth-specific characteristics of teeth indicated for root canal treatment, in the public dental service of the county of Västra Götaland, Sweden. METHODOLOGY: During a designated eight-week period, general dental practitioners (GDPs) working at 20 different public dental clinics consecutively registered indications for undertaking root canal treatment. The patients' subjective level of pain was also registered (VAS) at the very first appointment...
August 14, 2018: International Endodontic Journal
A Mahdee, J Eastham, J M Whitworth, J I Gillespie
AIM: To examine rat molar pulp innervation and identify complex cellular signalling systems involving nerve growth factor (NGF) and its p75 receptors (NGFR) at different stages of development, maturation and ageing. METHODOLOGY: Decalcified mandibular first molar mesial cusps from Wistar rats of ages 0 day; 1, 2, 3, 4, 6, 9, 12 and 24 weeks (n = 5 per group) were sectioned (10 μm) and incubated with antibodies for NGF, NGFR, calcitonin gene-related peptide (CGRP) and neurofilament...
August 12, 2018: International Endodontic Journal
A T Chow, S Y Quah, G Bergenholtz, K C Lim, V S H Yu, K S Tan
AIM: To determine if bacteria associated with persistent apical periodontitis induce species-specific pro-inflammatory cytokine responses in macrophages, and the effects of this species-specific microenvironment on osteogenic differentiation. METHODOLOGY: Macrophages were exposed to Enterococcus faecalis, Streptococcus oralis, Streptococcus mitis, Fusobacterium nucleatum, Treponema denticola or Tannerella forsythia, and levels of TNF-α and IL-1β elicited were determined by immunoassay...
August 12, 2018: International Endodontic Journal
V Nagendrababu, S J Pulikkotil, O S Sultan, J Jayaraman, J A Soh, P M H Dummer
The aim of the present systematic review was to evaluate the effectiveness of technology-enhanced learning (TEL) in the field of Endodontics to improve educational outcomes compared to traditional learning methods. Randomized controlled studies published in English were identified from two electronic databases (PubMed and Scopus) up to May 2018. Two authors independently performed study selection, data extraction and assessed the risk of bias (ROB). Any teaching method using TEL was considered as the intervention, and this was compared to traditional methods...
August 12, 2018: International Endodontic Journal
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