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https://www.readbyqxmd.com/read/29026702/apical-extrusion-of-intracanal-bacteria-with-single-file-and-multifile-rotary-instrumentation-systems
#1
Eshaghali Saberi, Shahram Shahraki Zahedani, Sediqe Ebrahimipour
AIMS AND OBJECTIVES: Instrumentation techniques may cause extrusion of microorganisms and their products into the periapical region resulting inflammation and treatment failure. The aim of this ex vivo study was comparing the apical bacterial extrusion in canals prepared with single file versus multiple file rotary systems. MATERIALS AND METHODS: Ninety-two human single-rooted mandibular first premolars were used. Endodontic access cavities were prepared, and root canals were contaminated with an Enterococcus faecalis (E...
September 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28937894/microbiologic-evaluation-of-cotton-and-polytetrafluoroethylene-ptfe-tape-as-endodontic-spacer-materials-in-primary-molars-an-in-vivo-study
#2
Attiguppe Ramasetty Prabhakar, Kratika Dixit, O S Raju
OBJECTIVE: PTFE tape, which is commonly used as plumber's tape is an inorganic, non-fibrous, ribbon like material. The aim of this study was to evaluate PTFE tape as endodontic spacer material and to compare it with commonly used spacer material that is cotton, in primary teeth. STUDY DESIGN: Seventeen children undergoing pulpectomy of lower second primary molar bilaterally were included in the study. Cotton and PTFE tape were placed as spacers on each side randomly...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28914253/mineral-trioxide-aggregate-induced-apical-closure-in-nonvital-immature-permanent-maxillary-incisor
#3
Meenu Bhola, Virinder Goyal, Parimala Tyagi, Tarun Kumar
Treatment of nonvital immature permanent teeth with calcium hydroxide is associated with few difficulties such as weakened tooth root, root canal reinfection, and long treatment time. Mineral trioxide aggregate (MTA) apical plug method is an alternative treatment method for open apices and has gained popularity in the recent times. This case report describes the management of a late-referral case of periapically involved, traumatized immature permanent incisor by endodontic treatment and the use of MTA apical plug...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28893051/permanent-maxillary-central-incisor-with-dilacerated-crown-and-root-and-c-shaped-root-canal
#4
Vikas Allwani, Mansing Pawar, Ajinkya Pawar, Sayed Abrar, Sangeeta Ambhore
Dilaceration is a rare disturbance in traumatised permanent teeth, which constitutes about 3% of the injuries to developing teeth. It usually occurs as a result of trauma to the deciduous predecessors and results in non axial displacement of the already formed hard tissue portion of the developing crown. Endodontic treatment of such teeth presents a challenge to clinicians, and careful management is required to successfully address the root canal anatomy and other possible variations. The C-shaped canal configuration is most frequently seen in mandibular second molars, but this variation may also occur in mandibular first molars, mandibular third molars, maxillary molars, mandibular first premolars, and even in maxillary lateral incisors, with rare reports of such variations occurring in the maxillary central incisors...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890612/comparative-evaluation-of-sealing-ability-water-absorption-and-solubility-of-three-temporary-restorative-materials-an-in-vitro-study
#5
A R Prabhakar, N Shantha Rani, Saraswathi V Naik
BACKGROUND: The quality of the coronal seal of root canal filling material is important for periapical health. Absorption of water or saliva by the temporary restorative materials leads to dimensional changes, loss of retention, staining and breaking in margin contours. Hence this study was carried out to evaluate and compare the sealing properties, water absorption and solubility of IRM (intermediate restorative material), Cavit G and GC Caviton. STUDY DESIGN: Experimental, in vitro intergroup randomized control trial...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28890608/coronal-sealing-capacity-of-temporary-restorative-materials-in-pediatric-dentistry-a-comparative-study
#6
Shabnam Milani, Bahman Seraj, Alireza Heidari, Atousa Mirdamadi, Mahdi Shahrabi
AIMS: The aim of this in vitro study is to compare the coronal microleakage of three common temporary restorative materials, namely Coltosol, Compoglass, and Zonalin, used in pediatric dentistry after endodontic treatment at different time intervals (1 week, 1, and 2 months) using dye penetration. MATERIALS AND METHODS: Access cavities were prepared in 72 intact extracted premolar teeth. The samples were divided into three groups (n = 24) and filled with Coltosol, Compoglass, or Zonalin...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28858418/effect-of-access-design-on-intracoronal-bleaching-of-endodontically-treated-teeth-an-ex-vivo-study
#7
Melissa Andreia Marchesan, Christopher Michael James, Adam Lloyd, Brian Ray Morrow, Franklin García-Godoy
OBJECTIVES: To determine the effect of access design on intracoronal bleaching with 35% carbamide peroxide on discolored teeth. MATERIALS AND METHODS: Forty-two intact maxillary central incisors were selected, sectioned and artificially stained using whole blood. Color measurements were performed with a spectrophotometer: before staining (T1), after staining (T2), at 7 (T3), and 14 (T4) days postbleaching. After T1, specimens were stratified and divided randomly into two groups according to access design (N = 20): G1: contracted endodontic cavity (CEC) access performed with a #848-010M bur and G2: traditional endodontic cavity (TEC) access done with a #1157 bur...
August 31, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28855750/evaluation-of-different-fibers-and-biodentine-as-alternates-to-crown-coverage-for-endodontically-treated-molars-an-in-vitro-study
#8
Hemalatha Hiremath, Sadanand Kulkarni, Vishwanath Hiremath, Madhavi Kotipalli
OBJECTIVE: The objective of this study is to evaluate the fracture resistance of newer restorative materials that could serve as an alternate to crown coverage. MATERIALS AND METHODS: Forty extracted human mandibular molar teeth were selected for this study and were divided into four groups (n = 10). All the teeth in the experimental groups (Group 2-4) were subjected to access cavity preparation with roughly 1.5 mm of tooth structure remaining throughout the circumference...
March 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28853504/-clinical-application-of-cone-beam-computed-tomography-combined-with-micro-ultrasound-technique-in-treating-three-mesial-canals-in-mandibular-first-molars
#9
Yang Lili, Zhang Yan, Zhao Shijun, Zhang Shuai, Wang Na, Xu Jie, Hu Shue, Xu Zhiyuan
Objective The aim of this study is to investigate the influence of cone beam computed tomography (CBCT) and micro-ultrasound technique for the treatment of three mesial canals in mandibular first molars. The three mesial canals according to Pomeranz's classification were characterized. Methods A total of 75 permanent mandibular first molars for root canal treatment were randomly selected from patients belonging to the age group of 14-60 years. After preparing the access cavity and locating the main canals, the middle mesial canal orifices in all teeth were determined with an endodontic explorer under direct vision (StageⅠ), under magnification with the aid of micro-ultrasound (Stage Ⅱ), and with the combined use of CBCT and micro-ultrasound to remove the dentin wall and calcifications (Stage Ⅲ)...
August 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28808468/treatment-of-a-maxillary-second-molar-with-one-buccal-and-two-palatal-roots-confirmed-with-cone-beam-computed-tomography
#10
Masoud Parirokh, Mahsa Razifar, Hamed Manochehrifar, Paul V Abbott, Nima Hatami, Nargessaddat Kashi, Aida Farhadi
Root canal configuration is an important subject in endodontic practice and dentists should be familiar with all possible types of root canal configuration. A forty-three year old male was referred for root canal treatment of his maxillary left second molar tooth with symptomatic irreversible pulpitis. Pre-operative radiographs showed a three rooted molar. However, after access cavity preparation two palatal and one buccal orifices were detected. The patient was informed of the unusual root canal anatomy and cone-beam computed tomography (CBCT) was ordered for precise evaluation of the anatomy...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28764303/surgical-management-of-a-separated-endodontic-instrument-using-second-generation-platelet-concentrate-and-hydroxyapatite
#11
S L Satheesh, Shefali Jain, Atul Chandra Bhuyan, Lekshmy S Devi
Fractured endodontic instrument is an unfortunate endodontic mishap which may obstruct thorough cleaning and shaping of the root canals with potential impact on the endodontic prognosis and treatment outcome. When the fractured segment lies apical to canal curvature, overzealous removal of tooth structure is required to gain access to the separated segment which in turn increases the likelihood of root fracture. In infected cases, the stage at which instrument separation occurs is crucial as root canal disinfection is jeopardized...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28756865/influence-of-remaining-coronal-tooth-structure-on-fracture-resistance-and-failure-mode-of-restored-endodontically-treated-maxillary-incisors
#12
Domingo Santos Pantaleón, Brian R Morrow, David R Cagna, Cornelis H Pameijer, Franklin Garcia-Godoy
STATEMENT OF PROBLEM: Limited information is available on the effect of an incomplete ferrule because of the varying residual axial wall heights and the volume of residual tooth structure on the fracture resistance of endodontically treated and restored maxillary incisors. PURPOSE: The purpose of this in vitro investigation was to examine the effect of varying residual axial wall heights, residual coronal tooth structure, and the absence of 1 proximal axial wall on the fracture resistance and failure mode of endodontically treated teeth restored with metal posts...
July 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28748050/assessment-of-facultative-anaerobes-from-the-root-canals-of-deciduous-molars-an-in-vivo-study
#13
Manisha Chandwani, Shweta Chandak
Background. The current research aimed to assess the prevalence of facultative anaerobes isolated from the root canals of deciduous molars. Methods. The present research enrolled 60 children in the 6‒9-year age group based on clinical and radiographic findings. Under aseptic conditions, access cavities were prepared followed by collection of samples from infected root canals with the help of sterile paper points. The samples thus obtained were subjected for microbial assay. Results. It was found that Enterococcus faecalis was isolated in 30% of cases, Escherichia coli in 28...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28739013/influence-of-access-cavity-design-on-root-canal-detection-instrumentation-efficacy-and-fracture-resistance-assessed-in-maxillary-molars
#14
Gabriela Rover, Felipe Gonçalves Belladonna, Eduardo Antunes Bortoluzzi, Gustavo De-Deus, Emmanuel João Nogueira Leal Silva, Cleonice Silveira Teixeira
INTRODUCTION: The aim of this study was to assess the influence of contracted endodontic cavities (CECs) on root canal detection, instrumentation efficacy, and fracture resistance assessed in maxillary molars. Traditional endodontic cavities (TECs) were used as a reference for comparison. METHODS: Thirty extracted intact maxillary first molars were scanned with micro-computed tomographic imaging at a resolution of 21 μm, assigned to the CEC or TEC group (n = 15/group), and accessed accordingly...
October 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28722002/report-of-occurrence-and-endodontic-management-of-three-rooted-maxillary-first-and-second-premolars-in-the-same-individual
#15
Kothandaraman Sathyanarayanan, Manali Ramakrishnan Srinivasan, Sundaresan Balagopal, Lingeswaran Poornima
Anatomical variations should be kept in mind in clinical and carefully looked for in radiographic evaluation during endodontic treatment of maxillary premolars. These teeth have highly variable root canal morphology. Although three separate roots in the maxillary first premolars have been reported, it is a rarity to find both the first and second premolars possessing three separate roots. This case report describes the diagnosis and endodontic management of maxillary first and second premolars with three canals and three separate roots...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28717632/effect-of-different-intracoronal-bleaching-methods-on-shear-bond-strength-of-ceramic-brackets-bonded-to-bleached-enamel-an-in-vitro-study
#16
Vikas Chauhan, Piush Kumar, Payal Sharma, Divya Shetty
OBJECTIVE: To investigate the effect of different intracoronal bleaching methods on the shear bond strength and site of failure of ceramic brackets. MATERIALS AND METHODS: Sixty freshly extracted human maxillary incisors were randomly divided into four groups (n = 15). Endodontic access cavity was prepared and root canals were filled, root fillings were removed 2mm apical to the cementoenamel junction, and a 2-mmthick layer of glass ionomer cement base was applied...
July 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28716472/the-bone-lid-technique-in-oral-surgery-a-case-series-study
#17
S Sivolella, G Brunello, F Fistarol, E Stellini, C Bacci
The aim of this case series study was to illustrate the bone lid technique implemented using piezoelectric surgery to access mandibular alveolar bone diseases and to assess the clinical and radiographic outcomes. The technique was used to treat 21 consecutive patients with various conditions: cysts in six cases, impacted teeth with associated cysts in nine, keratocystic odontogenic tumours in three, impacted teeth in two, and an endodontic lesion in one. The bone lid was fashioned using piezoelectric surgery and a thin osteotomy insert...
July 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28694714/sensitivity-specificity-predictive-values-and-accuracy-of-three-diagnostic-tests-to-predict-inferior-alveolar-nerve-blockade-failure-in-symptomatic-irreversible-pulpitis
#18
Daniel Chavarría-Bolaños, Laura Rodríguez-Wong, Danny Noguera-González, Vicente Esparza-Villalpando, Mauricio Montero-Aguilar, Amaury Pozos-Guillén
INTRODUCTION: The inferior alveolar nerve block (IANB) is the most common anesthetic technique used on mandibular teeth during root canal treatment. Its success in the presence of preoperative inflammation is still controversial. The aim of this study was to evaluate the sensitivity, specificity, predictive values, and accuracy of three diagnostic tests used to predict IANB failure in symptomatic irreversible pulpitis (SIP). METHODOLOGY: A cross-sectional study was carried out on the mandibular molars of 53 patients with SIP...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28681488/endodontic-treatment-of-dens-evaginatus-by-performing-a-splint-guided-access-cavity
#19
Jesús Mena-Álvarez, Cristina Rico-Romano, Ana Belén Lobo-Galindo, Álvaro Zubizarreta-Macho
AIM: Dens evaginatus (DE) is described as an unusual dental malformation. Tooth structure variations attached to this anatomical disturbance complicates the performance of a conservative access cavity for a conventional root canal treatment. Author's purpose is to describe the treatment of a type V DE by using splits as guides to perform access cavity. CLINICAL CONSIDERATIONS: This clinical case shows a root canal treatment of a type V DE diagnosed by using a cone beam computed tomography (CBCT)...
July 6, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28665514/microguided-endodontics-a-method-to-achieve-minimally-invasive-access-cavity-preparation-and-root-canal-location-in-mandibular-incisors-using-a-novel-computer-guided-technique
#20
T Connert, M S Zehnder, M Amato, R Weiger, S Kühl, G Krastl
AIM: To present a novel miniaturized and minimally invasive treatment approach for root canal localization in mandibular incisors with pulp canal calcification and apical periodontitis. SUMMARY: A 51-year-old male patient presented with pain from his mandibular incisors. The patient had a history of severe dental trauma over 30 years ago. Both mandibular central incisors (teeth 31, 41) were tender to percussion and had a yellowish discoloration. They did not respond to thermal and electrical sensitivity tests...
June 30, 2017: International Endodontic Journal
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