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https://www.readbyqxmd.com/read/28638552/efficacy-of-three-methods-for-inserting-calcium-hydroxide-based-paste-in-root-canals
#1
Thales Galvão, Bernardo Camargo, Luciana Armada, Flávio Alves
BACKGROUND: To compare the quality of calcium hydroxide paste fillings performed by three different techniques. MATERIAL AND METHODS: Sixty extracted maxillary central incisors, with previous root canal treatment, were decoronated and the gutta-percha was completely removed from the root canals. Subsequently, the canals were filled with a calcium hydroxide-based paste composed of calcium hydroxide, bismuth carbonate, and glycerin. The study samples were divided into the following three groups on the basis of three insertion techniques (n = 20, each): conventional technique using a hand instrument (MAN), rotary Lentulo spiral (LEN) technique, and a combined technique combining conventional hand files with sonic activation through the EndoActivator device (EA)...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28620636/a-scanning-electron-microscopic-evaluation-of-the-effectiveness-of-etidronic-acid-smearclear-and-mtad-in-removing-the-intracanal-smear-layer
#2
Hemant Kumar Yadav, Rakesh Kumar Yadav, Anil Chandra, Aseem Prakash Tikku
STATEMENT OF THE PROBLEM: Root canal therapy should not simply be the extirpation of the pulp and widening of the canal. But one should also focus on how to completely remove the loosely-attached smear layer because it has adverse effects on the final outcome of the treatment. PURPOSE: This study compared the efficacy of Etidronic acid, SmearClear and MTAD to remove the smear layer created during instrumentation in different regions of the root canal. MATERIALS AND METHOD: Fifty single-rooted mandibular premolars were decoronated from the cementoenamel junction and instrumented using the ProTaper universal rotary file system along with copious irrigation by 1...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28589472/clinical-comparison-of-the-effectiveness-of-7-and-14-day-intracanal-medications-in-root-canal-disinfection-and-inflammatory-cytokines
#3
Frederico C Martinho, Cinthya C Gomes, Gustavo N Nascimento, Ana P M Gomes, Fábio R M Leite
OBJECTIVE: This clinical study compared the effectiveness of 7- and 14-day intracanal medications in the reduction of bacteria/endotoxins from primarily infected root canals and determined their antigenicity against macrophages through the levels of cytokines. METHODS: Seventy-two primarily infected teeth were randomly divided into six groups according to medication and time of application: 7-day groups = G1, Ca(OH)2 + saline solution (SSL); G2, Ca(OH)2 + 2% chlorhexidine (CHX) gel; and G3, 2% CHX gel and 14-day groups = G4, Ca(OH)2 + SSL; G5, Ca(OH)2 + 2% CHX gel; and G6, 2% CHX gel (all groups, n = 12)...
June 6, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28578888/comparative-evaluation-of-chemotactic-factor-effect-on-migration-and-differentiation-of-stem-cells-of-the-apical-papilla
#4
Sara Fayazi, Koyo Takimoto, Anibal Diogenes
INTRODUCTION: Cell homing strategies could potentially be used in regenerative endodontic procedures (REPs) to promote the progressive coronal migration of stem cells, including stem cells of the apical papilla (SCAPs), along with formation of a new vascular network without the need for intentional apical trauma and intracanal bleeding. Although many chemotactic factors have been investigated for different mesenchymal stem cells, their effect on SCAP migration and differentiation is not fully understood...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28578886/antibacterial-properties-of-chitosan-nanoparticles-and-propolis-associated-with-calcium-hydroxide-against-single-and-multispecies-biofilms-an-in%C3%A2-vitro-and-in-situ-study
#5
Aldo Del Carpio-Perochena, Anil Kishen, Rafael Felitti, Anjali Y Bhagirath, Manoj R Medapati, Christopher Lai, Rodrigo S Cunha
INTRODUCTION: The aim of this study was to evaluate the efficacy of chitosan nanoparticles (CNPs) and ethanolic propolis extract (EPE) incorporated into a calcium hydroxide paste (Ca[OH]2) to kill bacterial biofilms. METHODS: Human root canal dentin was infected with Enterococcus faecalis for 21 days and also intraorally for 48 hours followed by incubation in brain-heart infusion for 48 hours to standardize biofilm growth. Ca(OH)2 pastes associated or not with CNPs or EPE were tested on biofilms for 7 and 14 days...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28577961/histologic-evaluation-of-regenerative-endodontic-procedures-with-the-use-of-chitosan-scaffolds-in-immature-dog-teeth-with-apical-periodontitis
#6
Paulo J Palma, João C Ramos, João B Martins, Anibal Diogenes, Maria H Figueiredo, Paula Ferreira, Carlos Viegas, João M Santos
INTRODUCTION: The aim of this study was to evaluate histologically the newly formed tissues after regenerative endodontic procedures (REPs) in dogs using either a blood clot (BC) or 2 different formulations of a chitosan hydrogel as scaffolds. METHODS: Apical periodontitis was induced by inoculating immature teeth with oral plaque in 4 beagle dogs. Teeth (n = 96) were divided into 2 control (n = 20) and 4 test groups (n = 76) according to the treatment: apexification and REPs with BC, sodium hyaluronate:chitosan (HA:CS) scaffolds, or pectin:chitosan (P:CS) scaffolds...
May 31, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28571266/formulation-and-evaluation-of-sol-gel-drug-delivery-system-for-intracanal-ph-sensitive-controlled-delivery-of-chlorhexidine
#7
Kapil Gandhi, Radha Srikrishna Maganti, Harsimran Kaur, K S Vinod, Pratik Verma
INTRODUCTION: Persistence of viable micro-organisms even after thorough chemomechanical debridement has been cited as a major cause for endodontic failure. Chlorhexidine is a drug, which has shown marked efficacy against Enterococcus faecalis and Candida spp., which are mostly accounted for endodontic failure and it has demonstrated high degree of substantivity to dentin by adsorption. Another issue with chlorhexidine and other intracanal medicaments is the excessive or premature peaking of the drug leading to possible side effects...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28545965/comparative-evaluation-of-micron-and-nano-sized-intracanal-medicaments-on-penetration-and-fracture-resistance-of-root-dentin-an-in-vitro-study
#8
Abburi Sireesha, R Jayasree, Sampath Vidhya, Sekar Mahalaxmi, V Sujatha, T S Sampath Kumar
Intracanal medicaments play a vital role in disinfection of root canal system. The aim of this study was to evaluate intratubular penetration and fracture resistance of roots filled with micron- and nano-sized intracanal medicaments: calcium hydroxide (CH), nanocalcium hydroxide (NCH), chitosan (CS) and nanochitosan (NCS). Their antibacterial effect on E. faecalis was tested using agar diffusion method. NCH and NCS were prepared by precipitation method and ionic crosslinking respectively. NCH and NCS particles were spherical, with an average particle size of 102±11...
May 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28527853/influence-of-intracanal-materials-in-vertical-root-fracture-pathway-detection-with-cone-beam-computed-tomography
#9
Kamile Leonardi Dutra, Camila Pachêco-Pereira, Eduardo Antunes Bortoluzzi, Carlos Flores-Mir, Manuel O Lagravère, Márcio Corrêa
INTRODUCTION: Investigating the vertical root fracture (VRF) pathway under different clinical scenarios may help to diagnose this condition properly. We aimed to determine the capability and intrareliability of VRF pathway detection through cone-beam computed tomographic (CBCT) imaging as well as analyze the influence of different intracanal and crown materials. METHODS: VRFs were mechanically induced in 30 teeth, and 4 clinical situations were reproduced in vitro: no filling, gutta-percha, post, and metal crown...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28511520/effect-of-trauma-to-primary-tooth-on-permanent-maxillary-incisors-a-clinical-case-report
#10
Bhawana Gupta, Sachin Gupta, Jitesh Wadhwa, Alpa Gupta
Trauma to primary tooth leads to abnormal variations in crown and root canals of permanent teeth that presents a challenge in diagnosis and clinical management to the practitioner. This article presents a detailed case report of the endodontic treatment of a three canalled maxillary central incisor and maxillary lateral incisor having single canal with open apex linked with periodontal defect. Root canals were prepared with hand files and canals were irrigated with 2.5% sodium hypochlorite solution. Calcium hydroxide was placed as an intracanal medicament...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28494599/a-combined-approach-with-passive-and-active-repositioning-of-a-traumatically-intruded-immature-permanent-incisor
#11
H J Kim, Y I Kim, K S Min
BACKGROUND: Severe damage to the tooth, periodontal ligament, and pulpal tissue often occurs with intrusive luxation, and outcomes are quite unpredictable because of the variable ways in which the injury may occur, which influences both the choice of treatment and prognosis. CASE REPORT: This case presents a novel method for the management of an intruded permanent maxillary central incisor with an immature apex. At first, watchful waiting for spontaneous re-eruption was the chosen treatment option...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28484231/effect-of-canal-anastomosis-on-periapical-fluid-pressure-build-up-during-needle-irrigation-in-single-roots-with-double-canals-using-a-polycarbonate-model
#12
Qi Huang, Jonathan B Barnes, G John Schoeffel, Bing Fan, Candice Tay, Brian E Bergeron, Lisiane F Susin, Jun-Qi Ling, Li-Na Niu, Franklin R Tay
Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28483164/influence-of-the-apical-preparation-size-and-the-irrigant-type-on-bacterial-reduction-in-root-canal-treated-teeth-with-apical-periodontitis
#13
Renata Costa Val Rodrigues, Homan Zandi, Anne Karin Kristoffersen, Morten Enersen, Ibrahimu Mdala, Dag Ørstavik, Isabela N Rôças, José F Siqueira
INTRODUCTION: This clinical study evaluated the influence of the apical preparation size using nickel-titanium rotary instrumentation and the effect of a disinfectant on bacterial reduction in root canal-treated teeth with apical periodontitis. METHODS: Forty-three teeth with posttreatment apical periodontitis were selected for retreatment. Teeth were randomly divided into 2 groups according to the irrigant used (2.5% sodium hypochlorite [NaOCl], n = 22; saline, n = 21)...
May 5, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28475093/traumatic-periapical-lesion-only-identified-through-cone-beam-computed-tomography-a-case-report
#14
Leopoldo Cosme-Silva, Ana Flávia Oliveira Marcos, Júlia Fernandes Ferreira, João Eduardo Gomes Filho, Naiana Viana Viola
This case report describes the diagnosis of a traumatic periapical lesion, caused by parafunctional habits (bruxism) and associated with bone rarefaction, that had not been identified by periapical radiography. Slight edema was observed clinically at the apical region of the maxillary left canine; however, the tooth demonstrated only physiologic mobility, and the results of a pulpal sensitivity test were inconclusive. A cone beam computed tomogram (CBCT) showed the presence of a periapical lesion. After preparation of the root canal, intracanal medication (calcium hydroxide and paramonochlorophenol) was placed and changed once a month for 2 months...
May 2017: General Dentistry
https://www.readbyqxmd.com/read/28439928/effect-of-ultrasonic-activation-on-the-reduction-of-bacteria-and-endotoxins-in-root-canals-a-randomized-clinical-trial
#15
V C Nakamura, E T Pinheiro, L C Prado, A C Silveira, A P L Carvalho, M P A Mayer, G Gavini
AIM: This randomized clinical trial aimed to compare the effectiveness of ultrasonic activation with that of nonactivated irrigation on the removal of bacteria and endotoxin from root canals. METHODOLOGY: Fifty patients with necrotic pulps and asymptomatic apical periodontitis were randomly allocated into two groups according to the final irrigation protocol after root canal preparation: Group UI - ultrasonic irrigation (n = 25) and Group NI - needle irrigation (n = 25)...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28416316/effect-of-passive-ultrasonic-activation-on-organic-tissue-dissolution-from-simulated-grooves-in-root-canals-using-sodium-hypochlorite-with-or-without-surfactants-and-edta
#16
Roberto Estevez, Antonio J Conde, Oliver Valencia de Pablo, Francisco de la Torre, Giampiero Rossi-Fedele, Rafael Cisneros
INTRODUCTION: The aim of this study was to evaluate the porcine palatal mucosa dissolution from artificial grooves using a final rinse with sodium hypochlorite (NaOCl) with or without a surfactant or ultrasonic activation (PUI). METHODS: The root canals of 130 human maxillary central incisors were chemomechanically prepared and the teeth split. A standardized longitudinal intracanal groove was created in 1 of the root halves. One hundred thirty porcine palatal mucosa samples were collected, adapted in order to fit into the grooves, and weighed...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28403365/crown-discoloration-promoted-by-materials-used-in-regenerative-endodontic-procedures-and-effect-of-dental-bleaching-spectrophotometric-analysis
#17
Luciane Geanini Pena Dos Santos, Wilson Tadeu Felippe, Beatriz Dulcineia Mendes de Souza, Andrea Cristina Konrath, Mabel Mariela Rodríguez Cordeiro, Mara Cristina Santos Felippe
Objectives: To assess tooth crown's color after intracanal treatment with triple antibiotic paste (TAP) or calcium hydroxide (CH); cervical sealing with glass ionomer cement (GIC) or mineral trioxide aggregate (MTA); and bleaching with carbamide peroxide. Material and Methods: After pulp removal and color spectrophotometer measurement, 50 bovine incisors were divided into 4 experimental groups and one control (untreated). Experiments were performed in phases (Ph)...
March 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28393816/a-comparative-assessment-of-different-techniques-for-obturation-with-endoflas-in-primary-molars-an-in-vivo-study
#18
Jayalakshmi Pandranki, Radha Rani Chitturi, Narsimha Rao V Vanga, Srinivas Kumar Chandrabhatla
PURPOSE: The rationale of this in vivo study was to evaluate and compare different obturation techniques for the intracanal conveyance of Endoflas in the primary molars using conventional radiography. MATERIALS AND METHODS: Thirty-eight children (4-9 years old) with total of 45 pulpally infected primary mandibular molars indicated for pulpectomy were categorized into three groups (i) endodontic pluggers, (ii) lentulospirals, and (iii) NaviTips, respectively, for obturation with Endoflas...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28392818/comparison-of-push-out-bond-strength-of-two-bulk-fill-and-one-conventional-composite-to-intracanal-dentin-in-severely-damaged-primary-anterior-teeth
#19
Shahram Mosharrafian, Zeynab Sharifi
OBJECTIVES: This study sought to compare the push-out bond strength of two bulk-fill and one conventional composite to intracanal dentin in primary anterior teeth. MATERIALS AND METHODS: This in vitro, experimental study was conducted on 39 primary anterior teeth, which were randomly divided into three groups. After cleaning and shaping, the root canals were filled with Metapex in such a way that after the application of 1mm light-cure liner on top of it, the coronal 3mm of the canal remained empty for composite post space...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28377655/efficacy-of-various-intracanal-medicaments-in-human-primary-teeth-with-necrotic-pulp-against-candida-biofilms-an-in-vivo-study
#20
Jophie V Paikkatt, Sheela Sreedharan, Beena Philomina, V P Kannan, Madhu Santhakumar, Tv Anupam Kumar
BACKGROUND: Candida has been associated with cases of secondary and persistent root canal infections. The purpose of this study was to evaluate and compare the effectiveness of commonly used intracanal medicament against Candida biofilms found in root canals of human primary teeth with necrotic pulp. MATERIALS AND METHODS: Pulp canals of 45 single-rooted primary maxillary anterior teeth with pulp necrosis in 34 children were included in the study. They were divided into three groups of 15 samples each - group I: Ca(OH)2 (calcium hydroxide); group II: 1% chlorhexidine gel (CHX); and group III: 1% metronidazole gel...
January 2017: International Journal of Clinical Pediatric Dentistry
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