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https://www.readbyqxmd.com/read/28088226/use-of-an-intraoperative-navigation-system-for-retrieving-a-broken-dental-instrument-in-the-mandible-a-case-report
#1
Shintaro Sukegawa, Takahiro Kanno, Akane Shibata, Kenichi Matsumoto, Yuka Sukegawa-Takahashi, Kyosuke Sakaida, Yoshihiko Furuki
BACKGROUND: A fracture of root canal instruments, with a fractured piece protruding beyond the apex, is a troublesome incident during an endodontic treatment. Locating and retrieving them represents a challenge to maxillofacial surgeons because it is difficult to access due to the proximity between the foreign body and vital structures. Although safe and accurate for surgery, radiographs and electromagnetic devices do not provide a precise three-dimensional position. In contrast, computer-aided navigation provides a correlation between preoperatively collected data and intraoperatively encountered anatomy...
January 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28079309/bioactive-injectable-aggregates-with-nanofibrous-microspheres-and-human-dental-pulp-stem-cells-a-translational-strategy-in-dental-endodontics
#2
I Garzón, M A Martin-Piedra, V Carriel, M Alaminos, X Liu, R D Souza
Regeneration of the pulp-dentin complex with stem cells is a potential alternative to conventional root canal treatments. Human dental pulp stem cells (hDPSCs) have been extensively studied because of their ability to proliferate and differentiate into mineralized dental and nondental tissues. In this work we combined hDPSCs with two types of injectable poly-L-lactic acid (PLLA) microspheres with a nanofibrous or smooth surface to form bioactive injectable aggregates, and examined their ability to promote pulp regeneration in the root canal in an in vivo model...
January 12, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28076462/effect-of-ultrasonic-streaming-on-intra-dentinal-disinfection-and-penetration-of-calcium-hydroxide-paste-in-endodontic-treatment
#3
Marcela Paola Castro Arias, Amanda Garcia Alves Maliza, Raquel Zanin Midena, Márcia Sirlene Zardin Graeff, Marco Antonio Húngaro Duarte, Flaviana Bombarda de Andrade
Objective: The antimicrobial effect of ultrasonic agitation of calcium hydroxide (CH) pastes in infected bovine dentin and their penetrability were evaluated using confocal laser scanning microscopy (CLSM) and microbiological culture. Material and Methods: Fifty-two bovine teeth were infected with Enterococcus faecalis using a new contamination protocol; then they received CH paste and were divided into groups with or without ultrasound. Ultrasonic agitation was conducted for 1 min with a plain point insert...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28073636/prognosis-of-double-crown-retained-removable-dental-prostheses-compared-with-clasp-retained-removable-dental-prostheses-a-retrospective-study
#4
Keita Ishida, Toshifumi Nogawa, Yoshiyuki Takayama, Masayasu Saito, Atsuro Yokoyama
PURPOSE: The present study compared the clinical prognosis of double crown-retained removable dental prostheses (D-DRPs) with that of clasp-retained removable dental prostheses (C-RDPs). METHODS: Clinical records of 201 patients who had received 52 D-RDPs with 144 abutment teeth (D-teeth) and 199 C-RDPs with 399 abutment teeth (C-teeth) at the Prosthetic Dentistry Clinic in Hokkaido University Hospital between April 2005 and June 2015 were analyzed. Survival and complication probabilities of the two types of prostheses and abutment teeth were evaluated using the Kaplan-Meier method and compared using the log-rank test...
January 7, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28068258/endodontics-beyond-the-basics
#5
Nathan Dinsbach
No abstract text is available yet for this article.
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28068186/bactericidal-efficacy-of-photodynamic-therapy-and-chitosan-in-root-canals-experimentally-infected-with-enterococcus-faecalis-an-in-vitro-study
#6
Fabio Camacho-Alonso, Encarnación Julián-Belmonte, Fernando Chiva-García, Yolanda Martínez-Beneyto
OBJECTIVE: To evaluate the antibacterial efficacy of photodynamic therapy (PDT) and chitosan against Enterococcus faecalis and assess the possible enhancive effect of chitosan on the photosensitizer methylene blue in experimentally infected root canals of extracted human teeth in vitro. BACKGROUND DATA: E. faecalis is frequently found in persistent endodontic infections. In this context, the antimicrobial PDT or newer antibacterial alternatives such as chitosan could become modern alternatives to existing antibacterial treatment approaches...
January 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28052215/volumetric-evaluation-of-different-obturation-techniques-in-primary-teeth-using-spiral-computed-tomography
#7
N B Nagaveni, Sneha Yadav, P Poornima, Vv Subba Reddy, N M Roshan
BACKGROUND: Various obturation techniques have been evaluated for better filling of the root canals in primary teeth using different methods. Spiral Computed Tomography (SCT) is a new revolution in the pediatric endodontics for assessment of quality of the obturation from 3 dimensions. OBJECTIVES: To evaluate the efficiency of 5 different obturation methods in delivering the filling material into the canals of primary teeth using Spiral Computed Tomography scan...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28052126/the-extent-of-the-crack-on-artificial-simulation-models-with-cbct-and-periapical-radiography
#8
Shuang Wang, Yiran Xu, Zhengyan Shen, Lijun Wang, Feng Qiao, Xu Zhang, Minghua Li, Ligeng Wu
BACKGROUND: The aim of this study was to investigate the extent of the crack of a cracked tooth on an artificial simulation model with Periapical Radiography (PR) and cone beam computed tomography (CBCT) in vitro, providing the basis for early diagnosis and an appropriate treatment plan. METHODS: Forty-four teeth with different extents of artificial cracks, created by exposure to liquid nitrogen after hot water at 100°C, were collected. They were subjected to PR and CBCT...
2017: PloS One
https://www.readbyqxmd.com/read/28050991/laser-based-disinfection-of-the-root-canal-system-an-update
#9
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Rasoul Sahebalam, Jun-Ichiro Kinoshita
Microorganisms have been considered to have played a critical role in the initiation and development of pulpo-periapical diseases. Some evidences have shown that mechanical instrumentation may leave considerable portions of canal surfaces undebrided. Therefore, some supplemental methods, such as the use of chemical solutions and/or lasers, have been introduced to further disinfect the complicated canal anatomy and destroy as many microorganisms as possible. The purpose of this review was to address a brief review of characteristics of lasers and their effects to disinfect the root canal in endodontics...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050518/revitalization-of-an-immature-permanent-mandibular-molar-with-a-necrotic-pulp-using-platelet-rich-fibrin-a-case-report
#10
Dayalan Subash, Krishnamma Shoba, Shibu Aman, Srinivasan Kumar Indu Bharkavi
Any insult to the pulp during its development causes cessation of dentin formation and root growth. Pulpal status and degree of root development are the decisive factors in the treatment approach. Various treatment options have been tried like surgery with root-end sealing, calcium hydroxide-apexification, placement of apical plug and regenerative endodontic procedures to induce apexogenesis. An ideal scenario for a necrosed tooth with immature root would be continued root development coupled with regeneration of pulp tissue...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050515/endodontic-management-of-a-mandibular-first-molar-with-radix-entomolaris-and-conservative-post-endodontic-restoration-with-cad-cam-onlay-a-novel-clinical-technique
#11
Kanika Yadav, Ida De Noronha De Ataide, Marina Fernandes, Rajan Lambor, Dalip Alreja
This case report describes a novel technique of restoring endodontically treated teeth. Hidden caries causing irreversible pulpitis in a mandibular molar with Radix Entomolaris (RE) was evident. The intact occlusal surface anatomy was duplicated before preparing an access cavity to replicate the original occlusal surface in the post endodontic restoration using (Computer-Aided Design and Computer-Aided Manufacturing) CAD/CAM technique. This report highlights uniquely designed onlay utilizing the benefits of contemporary materials and advanced technology...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049682/effect-of-a-pilot-preclinical-incentive-program-on-dental-students-performance-on-a-clinical-competency-exam
#12
Gregory M Schuster, Ronald J Hunt, Harold J Haering
The aim of this study was to investigate the effect of a pilot preclinical incentive program on dental students' performance on a clinical competency (mock board) exam at Midwestern University College of Dental Medicine-Arizona. To assess the effect of preclinical grade incentives in a program called SUCCEED, scores from a clinical competency exam administered during the fall quarter of the fourth year were compared between the graduating classes of 2014 and 2015 (pre-SUCCEED curriculum) and the graduating class of 2016 (post-SUCCEED curriculum)...
January 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28049372/operator-related-aspects-in-endodontic-malpractice-claims-in-finland
#13
Miira M Vehkalahti, Outi Swanljung
OBJECTIVE: We analyzed operator-related differences in endodontic malpractice claims in Finland. MATERIALS AND METHODS: Data comprised the endodontic malpractice claims handled at the Patient Insurance Centre (PIC) in 2002-2006 and 2011-2013. Two dental advisors at the PIC scrutinized the original documents of the cases (n = 1271). The case-related information included patient's age and gender, type of tooth, presence of radiographs, and methods of instrumentation and apex location...
January 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28045315/composition-and-microstructure-of-mta-and-aureoseal-plus-xrf-eds-xrd-and-fesem-evaluation
#14
L Cianconi, P Palopoli, V Campanella, M Mancini
AIM: The aim of this study was to determine the chemical composition and the phases' microstructure of Aureoseal Plus (OGNA, Italy) and ProRoot MTA (Dentsply Tulsa Dental, USA) and to compare their characteristics. MATERIALS AND METHODS: Study Design: Comparing Aureoseal Plus and ProRoot MTA microstructure by means of several analyses type. The chemical analysis of the two cements was assessed following the UNI EN ISO 196-2 norm. X-Ray fluorescence (XRF) was used to determine the element composition...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28042276/endodontic-management-of-dens-invaginatus-type-iiib-case-series
#15
Jorge N R Martins, Rui Pereira da Costa, Craig Anderson, Sérgio André Quaresma, Luís S M Corte-Real, Adam D Monroe
Dens invaginatus may be seen as a developmental malformation. It is characterized by an invagination of the enamel and dentin, creating a lumen inside the affected tooth, which may extend as deep as the apical foramen. Oehlers Type IIIb is considered the most challenging clinical conditions. The purpose of this study is to discuss the nonsurgical endodontic management of vital and necrotic dens invaginatus Type IIIb cases. Due to the complex anatomical consideration of dens invaginatus Type IIIb, endodontic treatment is extremely technique sensitive...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28041686/evaluation-of-a-commercially-available-hyaluronic-acid-hydrogel-restylane-as-injectable-scaffold-for-dental-pulp-regeneration-an-in%C3%A2-vitro-evaluation
#16
Vanessa Chrepa, Obadah Austah, Anibal Diogenes
INTRODUCTION: Regenerative endodontic procedures (REPs) are viable alternatives for treating immature teeth, yet these procedures do not predictably lead to pulp-dentin regeneration. A true bioengineering approach for dental pulp regeneration requires the incorporation of a scaffold conducive with the regeneration of the pulp-dentin complex. Several materials have been proposed as scaffolds for REPs; nonetheless, the majority are not eligible for immediate clinical chairside use. Thus, the aim of this study was to evaluate Restylane, a Food and Drug Administration-approved hyaluronic acid-based gel, as possible scaffold for REPs...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28041682/delayed-root-development-by-displaced-mineral-trioxide-aggregate-after-regenerative-endodontics-a-case-report
#17
Aovana Timmerman, Peter Parashos
INTRODUCTION: This case report presents the treatment of a 16-year-old boy with a maxillary lateral incisor (tooth #10) presenting with Oehlers type II dens invaginatus and diagnosed with previously initiated therapy and asymptomatic apical periodontitis. METHODS: A regenerative endodontic procedure (REP) was performed for the tooth but complicated by apically displaced mineral trioxide aggregate (MTA). Clinical and radiographic examination was undertaken yearly, and a cone-beam computed tomography scan was taken to investigate further the formation of hard tissues within the root canal...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28040502/a-comparison-between-effect-of-photodynamic-therapy-by-led-and-calcium-hydroxide-therapy-for-root-canal-disinfection-against-enterococcus-faecalis-a-randomized-controlled-trial
#18
Mohammad Asnaashari, Hengameh Ashraf, Afsaneh Rahmati, Neda Amini
BACKGROUND: Insufficient root canal disinfection is one of the main reasons for persistent periapical pathology. Photodynamic therapy (PDT) has been proven effective in disinfecting infected root canals. The aim of this study was to evaluate the antimicrobial effect of photo activated disinfection (PAD) when using toluidine blue as photosensitizer and a LED lamp after the conventional treatment, and comparing it with calcium hydroxide therapy in vivo. METHODS: This clinical trial includes 20 patients with molars requiring endodontic retreatment...
December 28, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28038357/streptococcus-gordonii-induces-nitric-oxide-production-through-its-lipoproteins-stimulating-toll-like-receptor-2-in-murine-macrophages
#19
Hyun Young Kim, Jung Eun Baik, Ki Bum Ahn, Ho Seong Seo, Cheol-Heui Yun, Seung Hyun Han
Streptococcus gordonii, a Gram-positive commensal in the oral cavity, is an opportunistic pathogen that can cause endodontic and systemic infections resulting in infective endocarditis. Lipoteichoic acid (LTA) and lipoprotein are major virulence factors of Gram-positive bacteria that are preferentially recognized by Toll-like receptor 2 (TLR2) on immune cells. In the present study, we investigated the effect of S. gordonii LTA and lipoprotein on the production of the representative inflammatory mediator nitric oxide (NO) by the mouse macrophages...
December 27, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/28032048/radiographic-technical-quality-of-root-canal-treatment-performed-by-undergraduate-dental-students-at-the-academy-dental-teaching-hospital-umst-sudan
#20
Elhadi M Awooda, Reem I Siddig, Ruaa S Alturki, Nada M Sanhouri
AIM: To radiographically evaluate the technical quality of root canal treatment performed by undergraduate dental students and compare the findings with other institution's work. MATERIALS AND METHODS: A retrospective, cross-sectional study was conducted at the Academy Dental Teaching Hospital involving postoperative periapical radiographs of patients who were endodontically treated by batch #14 undergraduate dental students of final year (2013-2014) from UMST, Sudan...
November 2016: Journal of International Society of Preventive & Community Dentistry
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