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Iranian Endodontic Journal

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https://www.readbyqxmd.com/read/27790270/vital-pulp-therapy-of-a-symptomatic-immature-permanent-molar-with-long-term-success
#1
Sedigheh Sabbagh, Alireza Sarraf Shirazi, Mohammad Jafar Eghbal
Vital pulp therapy (VPT) is the preferred conservative treatment for preservation of symptomatic pulps in immature permanent teeth. The present case report summarizes VPT of an immature permanent molar with irreversible pulpitis associated with apical periodontitis in a 9-year-old boy. Cervical pulpotomy was performed and radicular pulp stumps were covered with calcium-enriched mixture (CEM) cement; the tooth was then restored with stainless steel crown. After a 50-month follow-up period, the pulpotomized molar was clinically functional and asymptomatic...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790269/accidental-contamination-with-oil-during-endodontic-surgery
#2
Hugo Plascencia, Mariana Díaz, Patricia Cholico, Monserrat Del Real, Salvador Márquez-de Alba
The modern surgical endodontic treatment is a safe and predictable procedure with high success rate. However, several factors can retard or impede the proper healing process. Use of a high speed handpiece during hard tissues management (osteotomy and apical resection) can potentially be one of these factors. Formation of metallic debris from the surgical diamond burs, production of necrotic local tissue due to overheating and the direct liberation of air from conventional handpiece into the working area are potential irritants able to delay the tissue healing...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790268/diagnosis-and-treatment-of-a-type-iii-dens-invagination-using-cone-beam-computed-tomography
#3
Mohsen Bahmani, Alireza Adl, Samane Javanmardi, Sina Naghizadeh
A 20-year-old man presented with the history of pain and swelling in the anterior maxillary segment. The periapical radiography was indicative of a dental anomaly in right maxillary lateral incisor. Due to the insufficient information from conventional radiography, cone-beam computed tomography (CBCT) was ordered. CBCT showed apical root resorption, large apical lucency and two separate canals with distinct apical foramen (Oehlers type III dens invagination). The CBCT image was used as a guide for dentine removal with an ultrasonic tip...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790267/apical-sealing-ability-of-mineral-trioxide-aggregate-intermediate-restorative-material-and-calcium-enriched-mixture-cement-a-bacterial-leakage-study
#4
Shahriar Shahriari, Farhad Faramarzi, Mohammad-Yousef Alikhani, Maryam Farhadian, Seyedeh Sareh Hendi
INTRODUCTION: This in vitro study compared the apical sealing ability of three common root end filling materials namely mineral trioxide aggregate (MTA), intermediate restorative material (IRM) and calcium-enriched mixture (CEM) cement using a bacterial leakage model. METHODS AND MATERIALS: The study was conducted on 83 single-rooted human teeth. Tooth crowns were cut and root canals were prepared using the step-back technique. Apical 3 mm of the roots were cut and a three-mm-deep cavity was prepared using an ultrasonic instrument...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790266/comparison-of-marginal-adaptation-of-mta-and-cem-cement-apical-plugs-in-three-different-media
#5
Fatemeh Ayatollahi, Mahdi Tabrizizadeh, Fatemeh Zare Bidoki, Reza Ayatollahi, Milad Hazeri Baqdad Abad
INTRODUCTION: The aim of this study was to compare the marginal adaptation of mineral trioxide aggregate (MTA) and calcium-enriched mixture(CEM) cement apical plugs in open apex teeth in dry, blood- and saliva-contaminated canals. METHODS AND MATERIALS: A total of 120 human extracted single-rooted teeth were used. The teeth were decoronated and canals were cleaned and shaped up to #80 K-Files. After simulating open apex condition, samples were randomly divided into two groups (Group 1: MTA plug and group 2 CEM cement plug) and each group was then further divided into 3 subgroups (dry canal, blood- and saliva-contaminated canals)...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790265/efficacy-of-video-assisted-instruction-on-knowledge-and-performance-of-dental-students-in-access-cavity-preparation
#6
Mandana Naseri, Yazdan Shantiaee, Javid Rasekhi, Saeede Zadsirjan, Maryam Mojtahed Bidabadi, Akbar Khayat
INTRODUCTION: The conventional method of teaching endodontics has some drawbacks. Due to the small size of the oral cavity, students cannot closely observe the clinical procedure. Use of new teaching modalities such as the intraoral camera may obviate this problem. This study assessed the effect of video-assisted clinical instruction in dentistry (VACID) on dental student's knowledge and performance in access cavity preparation during endodontic treatment. METHODS AND MATERIALS: In this interventional study, twenty six undergraduate students were equally divided into two groups and received instructions on access cavity preparation via conventional demonstration (CD) or VACID using intraoral camera plus conventional demonstration...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790264/compressive-strength-of-mineral-trioxide-aggregate-with-propylene-glycol
#7
Negin Ghasemi, Saeed Rahimi, Shahriar Shahi, Amin Salem Milani, Yashar Rezaei, Mahnaz Nobakht
INTRODUCTION: The aim of this study was to evaluate the effect of adding propylene glycol (PG) to mineral trioxide aggregate (MTA) liquid with volume ratio of 20% on the compressive strength (CS) of MTA in two time periods (4 and 21 days) after mixing. METHODS AND MATERIALS: Four groups of steel cylinders (n=15) with an internal diameter of 3 and a height of 6 mm were prepared and MTA (groups 1 and 2) and MTA+PG (80% MTA liquid+20% PG) (groups 3 and 4) were placed in to the cylinders...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790263/the-effect-of-mineral-trioxide-aggregate-mixed-with-chlorhexidine-as-direct-pulp-capping-agent-in-dogs-teeth-a-histologic-study
#8
Hamed Manochehrifar, Masoud Parirokh, Sina Kakooei, Mohammad Mehdi Oloomi, Saeed Asgary, Mohammad Jafar Eghbal, Fatemeh Mashhadi Abbas
INTRODUCTION: The aim of the present investigation was to compare the efficacy of mineral trioxide aggregate (MTA) and 0.2% chlorhexidine (CHX) mixture to pure MTA, as a pulp capping material. METHODS AND MATERIALS: The pulp of 24 lateral incisors and canines from four dogs were exposed and capped either with MTA or MTA+0.2% CHX. After 2 months the animals were sacrificed and the teeth were prepared for histological evaluation in terms of calcified bridge formation, the degree of inflammation and presence of necrosis...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790262/antibacterial-efficacy-of-different-concentrations-of-sodium-hypochlorite-gel-and-solution-on-enterococcus-faecalis-biofilm
#9
Vahid Zand, Mehrdad Lotfi, Mohammad Hosein Soroush, Amir Ardalan Abdollahi, Mehdi Sadeghi, Ali Mojadadi
INTRODUCTION: This in vitro study compared the antibacterial efficacy of 2.5% sodium hypochlorite gel and 2.5% and 5.25% sodium hypochlorite solutions on Enterococcus faecalis (E. faecalis) biofilm. METHODS AND MATERIALS: The root canals of 60 extracted human single-rooted teeth were contaminated with E. faecalis and incubated for 6 weeks. The samples were randomly assigned to three experimental groups and one control group (n=15). The study protocol in the experimental groups consisted of injection of 5 mL of each irrigant into the root canals...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790261/the-effect-of-root-coating-with-titanium-on-prevention-of-root-resorption-in-avulsed-teeth-an-animal-study
#10
Azar Heydari, Soodeh Tahmasbi, Mohammadreza Badiee, SeyedSadra Izadi, Fatemeh Mashhadi Abbas, Sepideh Mokhtari
INTRODUCTION: Tooth avulsion is a real dental emergency. If immediate replantation is not performed, the avulsed tooth may be lost due to inflammatory or replacement resorption. This animal study aimed to evaluate the bone response to the titanium coating of the root surface as an artificial barrier, and prevention of resorption of avulsed teeth. METHODS AND MATERIALS: This experimental study was conducted on four male dogs. The dogs were randomly divided into two groups for assessment at two and eight weeks...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790260/the-in-vitro-antibacterial-efficacy-of-persian-green-tea-extract-as-an-intracanal-irrigant-on-enterococcus-faecalis-biofilm
#11
Fatemeh Ramezanali, Shiva Samimi, Mohammadjavad Kharazifard, Farzaneh Afkhami
INTRODUCTION: The aim of this study was to compare the antibacterial effect of Persian green tea extract (GTE) and 2.5% sodium hypochlorite (NaOCl) against Enterococcus faecalis (E. faecalis) as an intracanal irrigant. METHODS AND MATERIALS: Thirty freshly extracted teeth were instrumented and sectioned into mesial and distal segments. The specimens were put into wells containing 2 mL of E. faecalis-containing medium. After 3 weeks, the specimens were removed and divided randomly into three groups (n=20)...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790259/survey-of-anatomy-and-root-canal-morphology-of-maxillary-first-molars-regarding-age-and-gender-in-an-iranian-population-using-cone-beam-computed-tomography
#12
Mandana Naseri, Yaser Safi, Alireza Akbarzadeh Baghban, Akbar Khayat, Leila Eftekhar
INTRODUCTION: The purpose of this study was to investigate the root and canal morphology of maxillary first molars with regards to patients' age and gender with cone-beam computed tomography (CBCT). METHODS AND MATERIALS: A total of 149 CBCT scans from 92 (67.1%) female and 57 (31.3%) male patients with mean age of 40.5 years were evaluated. Tooth length, presence of root fusion, number of the roots and canals, canal types based on Vertucci's classification, deviation of root and apical foramen in coronal and sagittal planes and the correlation of all items with gender and age were recorded...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790258/evaluation-of-cytotoxic-effects-of-various-endodontic-irrigation-solutions-on-the-survival-of-stem-cell-of-human-apical-papilla
#13
Narges Farhad Mollashahi, Eshaghali Saberi, Hamed Karkehabadi
INTRODUCTION: Root canal disinfection is an important step in regenerative endodontic treatments. An ideal irrigating solution must have high antimicrobial activity and minimum cytotoxicity. This study sought to assess the effect of some irrigating solutions on stem cells from the human apical papilla (SCAP) after different periods of exposure. METHODS AND MATERIALS: Stem cells were isolated from immature, impacted mandibular third molars, transferred to 24-well plates, randomly divided into 6 experimental groups and exposed to BioPure MTAD Cleanser, QMix, 17% EDTA, 2% chlorhexidine (CHX), 5...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790257/evaluation-of-the-fractured-surface-of-five-endodontic-rotary-instruments-a-metallurgical-study
#14
Mohsen Aminsobhani, Mohamad Saleh Khalatbari, Naghmeh Meraji, Abdollah Ghorbanzadeh, Ehsan Sadri
INTRODUCTION: The aim of this study was to compare several metallurgic properties of Neoniti instrument with four other commonly used endodontic rotary files. METHODS AND MATERIALS: Neoniti A1 (25/0.08), RaCe (25/0.06), Mtwo (25/0.06), Twisted file (25/0.06) and ProTaper Next X2 (25/0.06) were examined by differential scanning calorimetry (DSC) before and after heat treatment at 500(°)C. X-ray diffraction (XRD) was also performed on the specimens. Furthermore, scanning electron microscopy (SEM) and x-ray energy-dispersive spectrometric (EDS) analyses were carried out on randomly selected fractured files...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790256/the-effects-of-various-endodontic-irrigants-on-the-push-out-bond-strength-of-calcium-enriched-mixture-cement-and-mineral-trioxide-aggregate
#15
Safoora Sahebi, Fereshte Sobhnamayan, Sina Naghizade
INTRODUCTION: The aim of this in vitro study was to evaluate the effect of various irrigants on the push-out bond strength of calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA). METHODS AND MATERIALS: A total of 140 dentin disks with a thickness of 1.5±0.2 mm and lumen size of 1.3 mm, were randomly divided into 12 groups (n=10) and 4 control groups (n=5). The lumen of disks in groups 1, 2, 3, 7, 8, 9 were filled with CEM and groups 4, 5, 6, 10, 11, 12 were filled with MTA...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790255/comparison-of-manual-and-rotary-instrumentation-on-postoperative-pain-in-teeth-with-asymptomatic-irreversible-pulpitis-a-randomized-clinical-trial
#16
Bita Talebzadeh, Saeed Nezafati, Saeed Rahimi, Shahriar Shahi, Mehrdad Lotfi, Negin Ghasemi
INTRODUCTION: One of the most common complications of root canal treatment is postoperative pain. The aim of the present clinical trial was to compare the severity of postoperative pain after root canal preparation with RaCe rotary system and hand K-Flexofile. METHODS AND MATERIALS: A total of 96 mandibular first and second molars were divided into two groups (n=48) based on root canal preparation technique. The teeth in both groups underwent one-session root canal treatment and the severity of postoperative pain was evaluated using visual analog scale (VAS) at 4-, 8-, 12-, 24- and 48-h and 1-week intervals...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790254/treatment-of-necrotic-teeth-using-two-engine-driven-systems-and-patient-s-postoperative-pain-a-double-blind-clinical-trial
#17
Vahid Zand, Amin Salem Milani, Ayla Hassani Dehkharghani, Mahdi Rahbar, Pardis Tehranchi
INTRODUCTION: One of the most important reasons for postoperative pain is the extrusion of debris from the apical foramen during preparation and shaping of root canals. The aim of this clinical trial was to evaluate the severity of postoperative pain with the use of two different engine-driven NiTi systems. METHODS AND MATERIALS: Ninety mandibular molars were randomly divided into two groups (n=45), and root canal cleaning and shaping was done using either RaCe or Reciproc instruments...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790253/effect-of-dexamethasone-intraligamentary-injection-on-post-endodontic-pain-in-patients-with-symptomatic-irreversible-pulpitis-a-randomized-controlled-clinical-trial
#18
Payman Mehrvarzfar, Ehsan Esnashari, Reyhaneh Salmanzadeh, Mahta Fazlyab, Mahyar Fazlyab
INTRODUCTION: The aim of this randomized-controlled clinical trial was to assess the effect of intraligamentary (PDL) injection of dexamethasone on onset and severity of post-treatment pain in patients with symptomatic irreversible pulpitis. METHODS AND MATERIALS: A total number of 60 volunteers were included according to the inclusion criteria and were assigned to three groups (n=20). After administration of local anesthesia and before treatment, group 1 (control) PDL injection was done with syringe containing empty cartridge, while in groups 2 and 3 the PDL injection was done with 0...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790252/antibacterial-efficacy-of-calcium-hydroxide-and-chlorhexidine-mixture-for-treatment-of-teeth-with-primary-endodontic-lesions-a-randomized-clinical-trial
#19
Zakiyeh Donyavi, Parastoo Ghahari, Mohammad Esmaeilzadeh, Mohammadjavad Kharazifard, Rasoul Yousefi-Mashouf
INTRODUCTION: This study compared the root canal microbial count of necrotic teeth after irrigation with 6% sodium hypochlorite (NaOCl) (single session treatment) and two-session root canal treatment with two-week application of calcium hydroxide (CH) mixed with 0.2% chlorhexidine (CHX) as intracanal medicament. METHODS AND MATERIALS: In this randomized clinical trial, single-rooted necrotic teeth were divided into two groups. Root canal was irrigated with 2 mL of 6% NaOCl in one group, and a mixture of 0...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27790251/discoloration-potential-of-endodontic-sealers-a-brief-review
#20
REVIEW
Sohrab Tour Savadkouhi, Mahta Fazlyab
: Tooth discoloration induced by endodontic sealers, is a common finding that impairs aesthetic outcome of endodontic treatment. The aim of the present mini literature review, was to summarize the existing data on discoloration potential of different endodontic sealers. The research covered the article published in PubMed and Google Scholar from 2000 to 2015. The searched keywords included 'tooth discoloration AND endodontic', 'tooth discoloration AND sealer, 'tooth discoloration AND zinc-oxide eugenol sealer', 'tooth discoloration AND Calcium Hydroxide Sealer', 'tooth discoloration AND Glass Ionomer Sealer', 'tooth discoloration AND epoxy-resin Sealer', 'tooth discoloration AND Silicon Based Sealer', 'tooth discoloration AND Bioceramic Sealer' and 'Spectrophotometry'...
2016: Iranian Endodontic Journal
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