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https://www.readbyqxmd.com/read/28216269/antibacterial-effects-of-antimicrobials-used-in-regenerative-endodontics-against-biofilm-bacteria-obtained-from-mature-and-immature-teeth-with-necrotic-pulps
#1
Jordon C Jacobs, Alex Troxel, Ygal Ehrlich, Kenneth Spolnik, Josef S Bringas, Richard L Gregory, Ghaeth H Yassen
INTRODUCTION: We investigated the direct and residual antibacterial effects of intracanal antimicrobials against bacterial biofilms obtained from infected mature and immature teeth with necrotic pulps. METHODS: Sterile dentin slabs (n = 100) were inoculated with bacterial biofilms obtained from root canals of an immature or a mature tooth with pulpal necrosis and incubated anaerobically for 3 weeks (n = 50 per biofilm). Dentin infected with each type of biofilm received 1 week of treatment with 1 or 5 mg/mL double antibiotic paste (DAP) in methylcellulose hydrogels, calcium hydroxide, or placebo paste or received no treatment (n = 10)...
February 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28210445/evaluation-of-conventional-protaper-hand-and-protaper-rotary-instrumentation-system-for-apical-extrusion-of-debris-irrigants-and-bacteria-an-in-vitro-randomized-trial
#2
Pinky Kalra, Arathi Rao, Ethel Suman, Ramya Shenoy, Baranya-Shrikrishna Suprabha
BACKGROUND: Endodontic instrumentation carries the risk of over extrusion of debris and bacteria. The technique used and the type of instrumentation influences this risk. AIM: The purpose of this study was to evaluate and compare the K-file, ProTaper hand and ProTaper rotary instrumentation systems for the amount of apically extruded debris, irrigant solution and intracanal bacteria. DESIGN: Experimental single blinded randomized type of in vitro study with sample of 30 single rooted teeth...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28186464/evaluation-of-antimicrobial-photodynamic-therapy-using-indocyanine-green-and-near-infrared-diode-laser-against-enterococcus-faecalis-in-infected-human-root-canals
#3
Charis Beltes, Nikolaos Economides, Hercules Sakkas, Chrissanthy Papadopoulou, Theodoros Lambrianidis
OBJECTIVE: Photodynamic therapy (PDT) is considered a promising adjunct to the currently available endodontic disinfection techniques leading to more effective reduction of intracanal bacteria. The present ex vivo study aimed to assess the antimicrobial effect of PDT using indocyanine green (ICG) as photosensitizer and a near-infrared (NIR) diode laser in root canals of human teeth infected with Enterococcus faecalis. MATERIALS AND METHODS: Ninety single-rooted teeth after chemomechanical preparation and sterilization were contaminated with an E...
February 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28185089/effectiveness-of-repeated-photodynamic-therapy-in-the-elimination-of-intracanal-enterococcus-faecalis-biofilm-an-in-vitro-study
#4
Ewa Joanna Prażmo, Renata Alicja Godlewska, Agnieszka Beata Mielczarek
The study aimed to investigate the effectiveness of photodynamic therapy in the elimination of intracanal Enterococcus faecalis biofilm and to analyse how a repeated light irradiation, replenishment of oxygen and photosensitiser affect the results of the photodynamic disinfecting protocol. After chemomechanical preparation, 46 single-rooted human teeth were infected with a clinical strain of E. faecalis and incubated for a week in microaerobic conditions. The experimental procedures included groups of single application of photodynamic therapy, two cycles of PDT, irrigation with 5...
February 10, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28178992/percutaneous-transforaminal-endoscopic-surgery-ptes-for-symptomatic-lumbar-disc-herniation-a-surgical-technique-outcome-and-complications-in-209-consecutive-cases
#5
Yu-Tong Gu, Zhan Cui, Hong-Wei Shao, Yun Ye, Ai-Qun Gu
BACKGROUND: We designed an easy posterolateral transforaminal endoscopic decompression technique, termed PTES, for radiculopathy secondary to lumbar disc herniation. The purpose of the study is to describe the technique of PTES and evaluate the efficacy and safety for treatment of lumbar disc herniation including primary herniation, reherniation, intracanal herniation, and extracanal herniation and to report outcome and complications. METHODS: PTES was performed to treat 209 cases of intracanal or extracanal herniations with or without extruding or sequestrated fragment, high iliac crest, scoliosis, calcification, or cauda equina syndrome including recurrent herniation after previous surgical intervention at the index level or adjacent disc herniation after decompression and fusion...
February 8, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28174365/assessment-of-coronal-leakage-of-temporary-restorations-in-root-canal-treated-teeth-an-in-vitro-study
#6
Pankaj K Srivastava, Ajay Nagpal, Gaurav Setya, Sunil Kumar, Alankrita Chaudhary, Kuldeep Dhanker
INTRODUCTION: Coronal leakage is one of the constant concerns in routine dental practice. It is one of the factors responsible for the failure of root canal therapy. Permanent restorations should be given as soon as possible after the completion of root canal therapy. If unavoidable, provisional restoration should be given in such a way that it maximally reduced the leakage of microorganisms and fluids from the external environment into the canal space. Hence, we evaluated the effect of saliva on the coronal leakage of temporary restorations...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28168347/local-and-systemic-diffusion-of-antineoplastic-drugs-following-vertebroplasty-using-acrylic-cement-mixed-with-cisplatin-or-methotrexate-experimental-study-in-pigs
#7
Rafael Llombart-Blanco, Carlos Villas, Álvaro Silva, Azucena Aldaz, Iñigo Navarro, Jeronimo Forteza, Salvador Martin Algarra, Matías Alfonso
PURPOSE: To determine the efficacy of cisplatin- or methotrexate-containing acrylic cement for local and systemic antineoplastic drug diffusion. Among the uses of acrylic cement or Polymethylmethacrylate (PMMA), there is the possibility to employ it as vehicle for drug diffusion. This capability is of interest in the treatment of pathological fractures: The curative effects of the cement (cytotoxicity of the monomer and increased temperature) are added to the antineoplastic effect of the drugs...
February 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28168241/intracanal-use-of-heated-rinsing-solutions-a-pilot-study
#8
David Sonntag, Wolfgang H-M Raab, Evelyn Martin, Ralf Keppel
OBJECTIVE: The tissue-dissolving and bactericidal activity of sodium hypochlorite (NaOCl) can be increased by warming the NaOCl solution without concurrently increasing its toxicity. The present study was set up to determine if and to what extent a heated liquid reaches the apical region. METHOD AND MATERIALS: A temperature sensor was introduced from the apical aspect into a human canine 22 mm in length prepared to size 40.04. At 37°C in the incubator the canal was irrigated with water 10 times each at temperatures of 10°C, 21°C, 45°C, 60°C, and 37°C (control group)...
February 6, 2017: Quintessence International
https://www.readbyqxmd.com/read/28154749/incidence-of-deformation-and-fracture-of-twisted-file-adaptive-instruments-after-repeated-clinical-use
#9
Gianluca Gambarini, Lucila Piasecki, Dario Di Nardo, Gabriele Miccoli, Gianni Di Giorgio, Everdan Carneiro, Dina Al-Sudani, Luca Testarelli
OBJECTIVES: The aim of the present study was to investigate the incidence of deformation and fracture of twisted file adaptive nickel-titanium instruments after repeated clinical use and to identify and check whether the three instruments within the small/medium sequence showed similar or different visible signs of metal fatigue. MATERIAL AND METHODS: One-hundred twenty twisted file adaptive (TFA) packs were collected after clinically used to prepare three molars and were inspected for deformations and fracture...
October 2016: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/28141647/surgical-approach-to-foreign-material-within-the-mandibular-canal-due-to-iatrogenic-factors
#10
Bo Li, Lunchang Wang, Zhihe Zhao, Hongbo Qian, Han Cui, Longjiang Li
This clinical report describes a relatively infrequent patient with inferior alveolar nerve damage caused by foreign material within the mandibular canal, which is one of the most severe complications of endodontic therapy. Although the circumstance is uncommon, it can have extremely unfavorable consequences for patients, such as anesthesia and paresthesia. In the present case, a patient suffered pain and severe paresthesia in the corresponding area after routine endodontic therapy. Several treatments were conducted to relieve the patient's symptoms, ranging from medication to tooth extraction, but all were of no avail...
January 30, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28127329/effect-of-etching-time-and-preparation-on-push-out-bond-strength-of-composite-to-intracanal-dentin-of-primary-anterior-teeth
#11
Shahram Mosharrafian, Hossein Afshar, Maryam Farbod, Zahra Baniameri
OBJECTIVES: This in-vitro study aimed to compare the push-out bond strength of composite to prepared and unprepared intracanal dentin using a 5th generation bonding agent in primary anterior teeth after etching for seven and 15 seconds. MATERIALS AND METHODS: Sixty primary anterior teeth were randomly divided into four groups. In groups one and two, intracanal dentin remained intact while in groups three and four it was prepared using a #5 round bur and low-speed handpiece...
September 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28127166/antimicrobial-activity-of-endodontic-medicaments-and-vehicles-using-agar-well-diffusion-method-on-facultative-and-obligate-anaerobes
#12
Triveni M Nalawade, Kishore G Bhat, Suma Sogi
AIMS: The aim of this study was to determine the relative antimicrobial effectiveness of these endodontic medicaments and various vehicles using an agar well diffusion assay. MATERIALS AND METHODS: Double Antibiotic Paste(DAP), modified DAP, 2% Chlorhexidine gluconate and their combination with four vehicles namely Polyethylene glycol 400 (PEG), Propylene glycol (PG), combinations of PG with PEG and lastly Glycerine were tested using agar well diffusion assay. The minimum bactericidal concentration was noted against four standard strains of organisms ie Streptococcus mutans ATCC( American Type Culture Collection) 25175, Staphylococcus aureus ATCC 12598, Enterococcus faecalis ATCC 35550 and Eschericia coli ATCC 25922...
October 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28068207/the-effect-of-diode-laser-on-planktonic-enterococcus-faecalis-in-infected-root-canals-in-an-ex-vivo-model
#13
Gilda Cretella, Carlo Lajolo, Raffaella Castagnola, Francesco Somma, MariaTeresa Inchingolo, Luca Marigo
OBJECTIVE: This study examined the bactericidal effect of diode laser irradiation against intracanal Enterococcus faecalis. METHODS AND MATERIALS: m total of 128 extracted single-rooted and single-canal teeth were treated with ProTaper instruments (Dentsply Maillefer, Ballaigues, Switzerland). A total of 120 root canals were inoculated with E. faecalis for 21 days, and the samples were randomly divided into five groups: Group 1 (n = 24) samples were irrigated with only saline solution (positive controls); Group 2 (n = 24) was treated with only 5...
January 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28042259/comparison-of-compressive-strength-among-three-different-intracanal-post-materials-in-primary-anterior-teeth-an-in-vitro-study
#14
Nilavu Nilavarasan, R Hemalatha, R Vijayakumar, V S Hariharan
OBJECTIVE: The objective of our study was to compare the fracture resistance and the mode of failure among three different post materials in primary anterior teeth. MATERIALS AND METHODS: A total of sixty extracted primary anterior teeth were selected for the study. The samples were divided into three groups of twenty teeth each: Group I (Ribbond), Group II (Omega loop), and Group III (Glass fiber post). Pulp therapy was followed by intracanal post and crown buildup...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28000644/comparative-analysis-of-cleaning-ability-of-three-nickel-titanium-rotary-systems-protaper-universal-k3-and-mtwo-an-in-vitro-scanning-electron-microscopic-study
#15
Ambar W Raut, Vijay Mantri, Aparna Palekar, Rupal Gadodia, Shubham Kala, Radha A Raut
BACKGROUND: Endodontic instruments including the nickel-titanium (NiTi) instruments produce debris and smear layer during instrumentation. The study was carried out to evaluate and compare the cleaning effectiveness of root canal preparation using three different rotary NiTi instrumentation systems - ProTaper Universal, K3 and Mtwo by means of scanning electron microscopy (SEM). METHODS: Thirty-six freshly extracted permanent mandibular molars were randomly divided into four groups: ProTaper Universal, K3, Mtwo system and control group...
October 2016: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/27994320/comparative-assessment-of-efficacy-of-two-different-pretreatment-single-oral-doses-of-betamethasone-on-inter-appointment-and-postoperative-discomfort-an-in-vivo-clinical-evaluation
#16
Hitesh Gyanani, Naveen Chhabra, Ghanshyam R Parmar
AIM: Study aimed to evaluate the efficacy of two different pretreatment single oral doses of betamethasone on the incidence of inter-appointment flare up and postoperative discomfort. MATERIALS AND METHODS: Fifty-four patients aged 18-59 years requiring endodontic treatment were selected and randomly assigned to three groups; single pretreatment oral dose of placebo or betamethasone in two different oral doses of 0.5 mg and 1 mg, respectively. Endodontic therapy was completed in two visits using triple antibiotic paste as intracanal medicament...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27989581/influence-of-temperature-on-cyclic-fatigue-resistance-of-protaper-gold-and-protaper-universal-rotary-files
#17
Gianluca Plotino, Nicola M Grande, Montse Mercadé, Luca Testarelli, Gianluca Gambarini
INTRODUCTION: The aim of this study was to evaluate the cyclic fatigue resistance of ProTaper Universal (PTU; Dentsply Maillefer, Baillagues, Switzerland) and ProTaper Gold (PTG, Dentsply Maillefer) nickel-titanium rotary files at room and intracanal temperatures. METHODS: A total of 120 files were used to test the cyclic fatigue resistance of PTU (S1 and F2) and PTG (S1 and F2) in an artificial canal at room temperature (20°C) and at intracanal temperature (35°C)...
December 15, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27982236/limewater-and-polymyxin-b-associated-with-naocl-for-endotoxin-detoxification-in-root-canal-with-necrotic-pulp
#18
Alessandra Sverberi Carvalho, Luciane Dias de Oliveira, Flávia Goulart da Rosa Cardoso, Felipe Eduardo de Oliveira, Marcia Carneiro Valera, Cláudio Antônio Talge Carvalho
This clinical study investigated the effects of endodontic treatment by using different irrigants (limewater + NaOCl and polymyxin B + NaOCl) and intracanal medication on endotoxins in teeth with primary endodontic infection and radiographically visible apical periodontitis. Thirty-three teeth with necrotic pulp and periapical lesions from different patients were selected for this study. Samples were collected after the coronal opening (S1) and after instrumentation (S2). Root canals were divided in 3 groups (n = 11) according to the irrigant combination used: NaOCl + LW: 2...
September 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27965505/apical-extrusion-of-intracanal-bacteria-following-use-of-two-engine-driven-instrumentation-techniques-an-in-vitro-study
#19
Niyaz Mohammed, M C Noushad, Biji Balan, N Dhanesh, Nishi Jayasheelan, Vanita D Revankar
AIM: The aim of the present study was to compare in vitro the amount of debris extruded apically from extracted teeth, using Twisted files and ProTaper rotary during two different instrumentation systems. MATERIALS AND METHODS: Forty-five human single-rooted mandibular premolar teeth were randomly divided into three groups and contaminated with Enterococcus faecalis. The teeth in experimental groups were instrumented until reaching the working length with ProTaper rotary instruments and Twisted files with XSmart and XSmart Dual groups...
November 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27965485/effect-of-intracanal-cryotherapy-and-negative-irrigation-technique-on-postendodontic-pain
#20
Talal Al-Nahlawi, Talaat Abo Hatab, Mahmoud Abd Alrazak, Ahmad Al-Abdullah
AIM: To evaluate the effect of intracanal cryotherapy with negative pressure irrigation (EndoVac) on postendodontic pain after vital single-visit root canal treatment (RCT). MATERIALS AND METHODS: A total of 75 single-rooted teeth with single root canal were treated endodontically. After root canal preparation with Protaper Universal rotary system and irrigation, teeth were divided randomly into three groups (n = 25) according to additional irrigation protocol as follows: Group I: No additional irrigation was applied (control); group II: A 20 mL of room temperature saline was irrigated during 5 minutes using EndoVac, and group III: A 20 mL of 2 to 4°C cold saline was irrigated during 5 minutes using EndoVac...
December 1, 2016: Journal of Contemporary Dental Practice
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