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https://www.readbyqxmd.com/read/28912942/efficacy-of-sodium-hypochlorite-activated-with-laser-in-intracanal-smear-layer-removal-an-sem-study
#1
Shahriar Shahriari, Shahin Kasraei, Ghodratollah Roshanaei, Hamed Karkeabadi, Hossein Davanloo
Introduction: The purpose of the present study was to evaluate the different concentrations of sodium hypochlorite activated with laser in removing of the smear layer in the apical, middle, and coronal segments of root canal walls by scanning electron microscopy analysis. Methods: Sixty single-rooted human mandibular teeth were decoronated to a standardized length. The samples were prepared by using Race rotary system to size 40, 0.04 taper and divided into 4 equal groups (n = 15). Group 1, irrigated with EDTA 17% and 5...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28863107/surgical-approach-to-foreign-material-within-the-mandibular-canal-due-to-iatrogenic-factors
#2
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...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28855749/a-cone-beam-computed-tomography-assessment-of-the-efficacy-of-different-irrigation-devices-for-removal-of-silicone-oil-based-calcium-hydroxide-from-root-canal-system
#3
Pradeep Kumar, Ida de Noronha de Ataide, Marina Fernandes, Rajan Lambor
BACKGROUND: Most often used intracanal medicament is calcium hydroxide (Ca(OH)2). Removal of Ca(OH)2 before obturation is mandatory. Different irrigation solutions and devices were tested in the previous study for this purpose. AIM: The aim of this study was to evaluate the comparative efficacy of different irrigation techniques in removing intracanal medicament using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Cleaning and shaping was carried out in 42 freshly extracted single-rooted mandibular first premolars using Protaper Rotary Files...
March 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28852640/modified-revascularization-in-human-teeth-using-an-intracanal-formation-of-treated-dentin-matrix-a-report-of-two-cases
#4
Payman Mehrvarzfar, Paul V Abbott, Hengameh Akhavan, Sohrab Tour Savadkouhi
Ethylenediaminetetraacetic acid (EDTA)-treated dentin matrix (TDM) is an enriched source of bioactive molecules. Therefore, it was hypothesized that fabrication of autogenous TDM on root dentinal walls of necrotic immature permanent teeth may allow more predictable outcome of revascularization treatments. Two young patients with permanent nonvital immature teeth were chosen for revascularization treatment. After appropriate disinfection of root canal system, TDM was fabricated on root dentinal walls using different dilutions of EDTA...
July 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28844307/clinical-evidence-for-regenerative-endodontic-procedures-immediate-versus-delayed-induction
#5
Tatiana M Botero, Xianli Tang, Richard Gardner, Jan C C Hu, James R Boynton, G Rex Holland
Clinicians face many challenges when treating immature permanent teeth in young patients. Immediate blood clot induction can be a successful option as described by some case reports. No experimental studies or clinical trials have addressed this question. We have designed a clinical trial in which we hypothesized that there is no difference in success between immediate or delayed induction protocols. After confirmation of pulpal necrosis, patients were randomized. In the delayed group, 15 teeth were treated following the American Association of Endodontists guidelines, and calcium hydroxide was used as the intracanal medication...
September 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28843405/intracanal-temperature-changes-during-bone-preparations-close-to-and-penetrating-the-inferior-alveolar-canal-drills-versus-piezosurgery
#6
József Szalma, László Vajta, Edina Lempel, Ákos Tóth, Sára Jeges, Lajos Olasz
PURPOSE: The aim of this in vitro study was to investigate temperature increases in the inferior alveolar canal (IAC), when different bone preparation methods approximate and penetrate the IAC. MATERIALS AND METHODS: In pig mandible, buccal bone removals were performed until the neurovascular bundle became visible. Temperatures were registered with thermocouple probes and with infrared thermometer. Preparations were performed with diamond drills (DD), tungsten carbide drills (TCD), piezoelectric diamond sphere (PT_D) and saw (PT_S) tips, and a combined preparation method was also performed whereby the superficial three-fourths of the bone was removed with TCD and the deepest one-fourth of the bone with PT_D (TCD + PT_D_7 °C) or PT_S (TCD + PT_S_7 °C), using cooled irrigation (7 °C)...
July 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28840043/revascularization-in-immature-permanent-teeth-with-necrotic-pulp-and-apical-pathology-case-series
#7
López Carmen, Mendoza Asunción, Solano Beatriz, Yáñez-Vico Rosa
INTRODUCTION: To present and discuss the results of five clinical cases treated using the revascularization protocol, showing clinical and radiographic monitoring. Necrotic immature teeth with periapical pathology present a challenge to dentists because the techniques used in apexification leave the tooth susceptible to fracture, since the root does not continue to grow in length and the canal walls are thin. Revascularization has emerged as an alternative to resolve these deficiencies, enabling apical closure, continued development of the roots, and thickening of the dentinal walls...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28828148/spectrophotometric-analysis-of-crown-discoloration-following-the-use-of-silver-nanoparticles-combined-with-calcium-hydroxide-as-intracanal-medicament
#8
Farzaneh Afkhami, Sadaf Elahy, Alireza Mahmoudi-Nahavandi
BACKGROUND: Optimal antibacterial efficacy of intracanal medicaments containing silver nanoparticles (Ag-NPs) has been well documented. However, concerns remain regarding the effect of Ag-NPs on tooth color. This study aimed to assess the effects of calcium hydroxide (CH) mixed with Ag-NPs as intracanal medicaments on tooth color. The effect of location of application of medicament on the degree of discoloration was evaluated as well. MATERIAL AND METHODS: Fifty extracted single-rooted, single-canal human teeth with straight roots, no caries, no cracks or fractures were collected and accessed...
July 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28828018/effect-of-intracanal-post-space-treatments-on-push-out-bond-strength-of-fiber-posts-to-root-dentin
#9
Hamid Kermanshah, Behnam Bolhari, Faraz Sedaghat, Ladan Ranjbar Omrani
OBJECTIVES: The main disadvantage of fiber posts is their low bond strength to root canal wall. The aim of the present study was to assess the effect of different root canal post space treatments on push-out bond strength of fiber posts to root canal dentin. MATERIALS AND METHODS: After post space preparation in 40 endodontically treated human premolars, the teeth were randomly divided into four experimental groups: Group 1: control group, group 2: Endsolv R, group 3: ultrasonic cleaning, group 4: Clearfil Repair...
January 2017: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28808467/comparison-of-the-penetration-depth-of-conventional-and-nano-particle-calcium-hydroxide-into-dentinal-tubules
#10
Vahid Zand, Hadi Mokhtari, Aila Hasani, Golchin Jabbari
INTRODUCTION: The aim of this in vitro study was to evaluate and compare the penetration depth of conventional (CH) and nano-particle calcium hydroxide (NCH) into dentinal tubules. METHODS AND MATERIALS: Ninety human single-rooted teeth were instrumented by RaCe rotary system and after chemomechanical preparation were randomly divided in two equal groups (n=45). In the first group conventional CH and in the other NCH was used as intracanal medicament. After 2 weeks of incubation all roots were intentionally split at longitudinal axis and prepared for scanning electron microscope (SEM) observation...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808460/the-effect-of-intracanal-medicaments-on-microleakage-of-mineral-trioxide-aggregate-apical-plugs
#11
Mohammadreza Nabavizadeh, Fariborz Moazzami, Mohsen Bahmani, Hossein Mirhadi
INTRODUCTION: The purpose of this in vitro study was to evaluate the effect of calcium hydroxide, double and triple antibiotic paste on the sealing ability of mineral trioxide aggregate (MTA) apical plugs. METHODS AND MATERIALS: A total of 90 extracted teeth with single canals were prepared and randomly divided into four experimental groups (n=20). Intra-canal medicaments were applied for 3 weeks. MTA was placed through the access opening and condensed to the apical area and then fluid filtration technique was utilized to evaluate sealing ability after 1, 7, 14 and 30 days...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28804934/complicated-untreated-apical-periodontitis-causing-paraesthesia-a-case-report
#12
Domenico Ricucci, Simona Loghin, José F Siqueira
The purpose of this article was to report a case of untreated apical periodontitis resulting in severe late complications. A patient with an asymptomatic crowned root canal-treated mandibular molar revealing a radiographic substandard endodontic treatment and a slight periapical radiolucency was made aware of the treatment options and opted for no treatment. The lesion slightly increased in size after 6 years, but the tooth remained asymptomatic and endodontic retreatment was again refused. After 4 more years, the patient presented with an abscess and severe pain, complicated by paraesthesia of the left chin and lip...
August 14, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28800075/biofilms-in-endodontics-current-status-and-future-directions
#13
REVIEW
Prasanna Neelakantan, Monica Romero, Jorge Vera, Umer Daood, Asad U Khan, Aixin Yan, Gary Shun Pan Cheung
Microbiota are found in highly organized and complex entities, known as biofilms, the characteristics of which are fundamentally different from microbes in planktonic suspensions. Root canal infections are biofilm mediated. The complexity and variability of the root canal system, together with the multi-species nature of biofilms, make disinfection of this system extremely challenging. Microbial persistence appears to be the most important factor for failure of root canal treatment and this could further have an impact on pain and quality of life...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28779891/silver-nanoparticles-in-dentistry
#14
REVIEW
Victor T Noronha, Amauri J Paula, Gabriela Durán, Andre Galembeck, Karina Cogo-Müller, Michelle Franz-Montan, Nelson Durán
OBJECTIVE: Silver nanoparticles (AgNPs) have been extensively studied for their antimicrobial properties, which provide an extensive applicability in dentistry. Because of this increasing interest in AgNPs, the objective of this paper was to review their use in nanocomposites; implant coatings; pre-formulation with antimicrobial activity against cariogenic pathogens, periodontal biofilm, fungal pathogens and endodontic bacteria; and other applications such as treatment of oral cancer and local anesthesia...
August 2, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28764283/fabrication-and-appraisal-of-poly-lactic-co-glycolic-acid-moxifloxacin-nanoparticles-using-vitamin-e-tpgs-a-potential-intracanal-drug-delivery-agent
#15
Hardik Makkar, Gaurav Patri
INTRODUCTION: Nanotechnology is gaining momentum in the search for ideal biomaterials by dental researchers. The expansible nature of Endodontology deems exploration, learning and scrutinizing newer avenues which have the potential to be applied and investigated. The popularity of polymers as drug delivery vehicles has opened avenues for their application in the root canal system. This study utilized application of biodegradable polymers as potential drug delivery vehicles against Enterococcus faecalis, one of the main reasons for post treatment disease...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28761256/root-canal-treatment-of-a-fused-mandibular-incisor-using-cone-beam-computed-tomography-as-a-diagnostic-aid
#16
Maura Cristiane Orçati Dorielo, Alcides Gonini-Junior, Durvalino de Oliveira, Renata Tarnoschi Bordignon, Alvaro Henrique Borges
Tooth fusion consists of the union of crowns by the enamel and/or dentin. We describe a case of a patient who presented with a fistula in the apical portion of teeth 32 and 33. Clinically, tooth 32 showed increased crown width in relation to other teeth in the same arch. Radiographic examination evidenced fusion of tooth 32 with a possible supernumerary tooth. Cone-beam computed tomography was used to confirm the radiographic findings and revealed incomplete apex formation of the supernumerary tooth. The fused tooth was subjected to root canal treatment...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28761249/retrievability-of-calcium-hydroxide-intracanal-medicament-with-three-calcium-chelators-ethylenediaminetetraacetic-acid-citric-acid-and-chitosan-from-root-canals-an-in-vitro-cone-beam-computed-tomography-volumetric-analysis
#17
Ramya Raghu, Geethu Pradeep, Ashish Shetty, P M Gautham, P G Puneetha, T V Satyanarayana Reddy
AIM: This study compared the amount of aqueous-based and oil-based calcium hydroxide remaining in the canal, after removal with two different chelators 17% EDTA, 20% Citric acid and 0.2% Chitosan in combination with ultrasonic agitation. METHODS AND MATERIAL: Cleaning and shaping of root canals of 28 mandibular premolar was done and canals were filled either with Metapex or Ca(OH)2 mixed with distilled water. Volumetric analysis was performed utilizing cone beam-computed tomography (CBCT) after seven days of incubation...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28761245/comparison-of-efficiency-of-ethylenediaminetetraacetic-acid-citric-acid-and-etidronate-in-the-removal-of-calcium-hydroxide-intracanal-medicament-using-scanning-electron-microscopic-analysis-an-in-vitro-study
#18
Sherin Jose Chockattu, B S Deepak, K Mallikarjun Goud
CONTEXT: Being integral to root canal therapy, obturation can be performed adequately only after the removal of intracanal medicament. One technique involves the use of chelating agents such as ethylenediaminetetraacetic acid (EDTA) and citric acid. Etidronic acid, a relatively new chelator, has smear layer removal ability and lesser dentinal erosion. It is untested in calcium hydroxide (Ca[OH]2) medicament removal. AIM: The aim of this study was to compare the efficiency of irrigation protocols (EDTA, citric acid, and etidronate) in Ca(OH)2 removal...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28712894/antimicrobial-and-immunomodulatory-activity-of-host-defense-peptides-clavanins-and-ll-37-in-vitro-an-endodontic-perspective
#19
Stella Maris F Lima, Mirna S Freire, Ana Luisa O Gomes, Ana Paula C Cantuária, Flávia Rodrigues P Dutra, Beatriz S Magalhães, Maurício Gonçalves C Sousa, Ludovico Migliolo, Jeeser A Almeida, Octávio L Franco, Taia Maria B Rezende
Endodontic treatment is mainly based on root canal disinfection and its failure may be motivated by microbial resistance. Endodontic therapy can be benefitted by host defense peptides (HDPs), which are multifunctional molecules that act against persistent infection and inflammation. This study aimed to evaluate the antimicrobial, cytotoxic and immunomodulatory activity of several HDPs, namely clavanin A, clavanin A modified (MO) and LL-37, compared to intracanal medication Ca(OH)2. HDPs and Ca(OH)2 were evaluated by: (1) antimicrobial assays against Candida albicans and Enterococcus faecalis, (2) cytotoxicity assays and (3) cytokine tumor necrosis factor (TNF)-α, monocyte chemoattractant protein (MCP)-1, interleukin (IL)-1α, IL-6, IL-10 and IL-12 and nitric oxide (NO) production by RAW 264...
July 14, 2017: Peptides
https://www.readbyqxmd.com/read/28688091/erratum-to-clinical-comparison-of-the-effectiveness-of-7-and-14-day-intracanal-medications-in-root-canal-disinfection-and-inflammatory-cytokines
#20
Frederico C Martinho, Cinthya C Gomes, Gustavo G Nascimento, Ana P M Gomes, Fábio R M Leite
No abstract text is available yet for this article.
July 7, 2017: Clinical Oral Investigations
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