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Root canal retreatment

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https://www.readbyqxmd.com/read/30305881/evaluation-of-the-time-required-to-perform-three-retreatment-techniques-with-dental-microscope-and-ultrasonic-activation-for-removing-filling-material-from-the-oval-root-canal
#1
Tarek-Fahed Alakabani, Vicente Faus-Llácer, Vicente Faus-Matoses
Background: When endodontic treatment fails, retreatment consists of the complete removal of the root canal filling material for thorough cleaning and reobturation. Various techniques are available for the filling removal procedure, which present varying degrees of efficacy, and take a varying length of time to perform. The aim of this study was to compare the time required to carry out reciprocating, rotary, and manual techniques with dental microscope and ultrasonic activation for removing filling material from root canals...
August 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/30294114/effect-of-root-canal-preparation-obturation-and-retreatment-on-the-induction-of-dentinal-microcracks-a-microcomputed-tomography-study
#2
Apoorva Jain, Vineeta Nikhil, Parul Bansal
Introduction: This study evaluated the effect of root canal preparation, obturation, and different techniques of retreatment on the percentage increase in the number of dentinal microcracks using microcomputed tomography (CT) analysis. Materials and Methods: Forty-five mandibular premolars after micro-CT scanning were prepared using Protaper universal files up to F4 and obturated. After the second micro-CT scanning again, the samples were randomly divided into three groups ( n = 15) for retreatment procedure...
September 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/30243662/comparison-between-single-file-rotary-systems-part-1-efficiency-effectiveness-and-adverse-effects-in-endodontic-retreatment
#3
Adham A Azim, Howard H Wang, Mohamed Tarrosh, Katharina A Azim, Lucila Piasecki
INTRODUCTION: The aim of this study was to evaluate in vitro the performance of 3 single-file systems: WaveOne Gold Primary (WOG; Dentsply Sirona, Ballaigues, Switzerland), Hyflex EDM "one file" (EDM; Coltene/Whaledent, Alstatten, Switzerland), and XP Shaper (XP; FKG, La Chaux de Fonds, Switzerland), for nonsurgical endodontic retreatment on mandibular anterior teeth in regard to the amount of remaining filling material inside the canal, debris extrusion, and operation time...
September 19, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/30231174/evaluation-of-the-efficacy-of-filling-material-removal-and-re-filling-after-different-retreatment-procedures
#4
Roberta Fonseca de Castro, Juliana do Socorro Soares Melo, Luiz Carlos de Lima Dias, Emmanuel João Nogueira Leal Silva, Juliana Melo da Silva Brandão
This study analyzed the influence of different retreatment protocols on amount of remaining filling material and amount of new sealer after endodontic retreatment. Forty mandibular molars with curved mesial roots were prepared with ProTaper Universal system, and filled with AH Plus sealer mixed with 0.1% rhodamine B and gutta-percha. After 7 days, the specimens were randomized according to the retreatment protocol (n = 10): ProTaper Retreatment System (PTR); PTR+Orange Oil (PTR+OO); PTR+Passive Ultrasonic Irrigation (PTR+PUI)...
2018: Brazilian Oral Research
https://www.readbyqxmd.com/read/30174106/periapical-microsurgery-do-root-canal-retreated-teeth-have-more-dentinal-defects
#5
Peter Z Tawil, Elisa K Arnarsdottir, Ceib Phillips, Sigurdur R Saemundsson
INTRODUCTION: This microsurgical clinical study evaluated if teeth that have undergone endodontic retreatment are associated with more dentinal defects than primary root canal-treated teeth. METHODS: One hundred fifty-five patients who underwent periapical microsurgery treatment in a private practice setting were evaluated. The root ends were resected, and the roots were inspected for the presence of dentinal defects through the surgical operating microscope with the help of a 0...
October 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/30166873/comparing-profile-vortex-to-protaper-next-for-the-efficacy-of-removal-of-root-filling-material-an-ex-vivo-micro-computed-tomography-study
#6
Emad AlShwaimi
Aim: This study compared the efficacy of ProFile Vortex (PV) with that of ProTaper Next (PTN) for the removal of root canal filling material. Materials and methods: Twenty-six mesial canals of extracted mandibular first molars were instrumented, obturated with gutta-percha and sealant, and randomly allocated to a PTN (X3, X2, or X1) or PV group. The percentage of remaining material, amount of dentin removed, and extent of transportation were assessed using micro-computed tomography...
January 2018: Saudi Dental Journal
https://www.readbyqxmd.com/read/30150498/efficacy-of-rotary-and-hand-instrument-in-removing-gutta-percha-and-sealer-from-root-canals-of-endodontically-treated-teeth
#7
Amit Patil, Sheetal Mali, Deepak Hegde, Himmat Jaiswal, Hrishikesh Saoji, Dhairaysheel N Edake
AIM: One of the common dental procedures employed these days in patients with irreversible pulpitis is root canal therapy. In retreatment cases, it is necessary for complete removal of obturate gutta-percha (GP) from obturate root canal system. Various methods and techniques are available these days for this purpose. This study was aimed to assess the efficacy of D-RaCe files, ProTaper retreatment files, Mtwo retreatment files, and manual Hedstrom files (H-files) in removing filling materials from the root canals of the endodontically treated teeth...
August 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/30147404/diffusion-of-calcium-hydroxide-through-dentinal-tubules-of-retreated-root-canals-an-in-vitro-study
#8
Mohammed Mustafa, Wafa Hassan Alaajam, Ahmed Abdul Azeim, Najla Aedh Alfayi, Rahaif Misfer Alqobty, Shahad Alghannam
Objective: Studies about the dispersion of hydroxyl ions through dentin of endodontically retreated teeth are scarce. The present study aims at examining the diffusion of calcium hydroxide in vitro by recording the pH changes of retreated root canal using two types of calcium hydroxide preparations. Materials and Methods: A total of 45 recently extracted single-rooted mandibular first premolars were collected and cleaned from calculus and remains of periodontal tissue...
July 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/30122812/efficacy-of-rotary-and-reciprocating-single-file-systems-on-different-access-outlines-for-gutta-percha-removal-in-retreatment-an-in-vitro-study
#9
Kainath Fatima, Rohit Nair, Sandhya Khasnis, Saritha Vallabhaneni, Jayaprakash D Patil
Introduction: The aim of this study is to compare the effectiveness of reciprocating and continuous rotary nickel-titanium instruments during retreatment performed through two different access outlines. Methodology: A total of 48 freshly extracted mandibular first and second premolars with single root and canal were selected. Initial root canal treatment was completed through a contracted endodontic cavity (CEC) design. Canals were instrumented with F2 ProTaper instrument, obturated with warm lateral condensation of gutta-percha with AH Plus sealer, and allowed to set for 30 days at 37°C and 100% humidity...
July 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/30107035/indications-for-root-canal-treatment-in-a-swedish-county-dental-service-patient-and-tooth-specific-characteristics
#10
E Wigsten, P Jonasson, T Kvist
AIM: To study patient- and tooth-specific characteristics of teeth indicated for root canal treatment, in the public dental service of the county of Västra Götaland, Sweden. METHODOLOGY: During a designated 8-week period, general dental practitioners working at 20 different public dental clinics consecutively registered indications for undertaking root canal treatment. The patients' subjective level of pain was also registered (visual analogue scale) at the very first appointment...
August 14, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/30091141/effectiveness-of-reciproc-blue-in-removing-canal-filling-material-and-regaining-apical-patency
#11
G De-Deus, F G Belladonna, A S Zuolo, M Simões-Carvalho, C B Santos, D S Oliveira, D M Cavalcante, E J N L Silva
AIM: To compare the efficiency of M-Wire Reciproc and Reciproc Blue instruments in the removal of root filling material and in their ability to regain apical patency through micro-computed tomographic (micro-CT) analysis. METHODOLOGY: Ten anatomically matched pairs of teeth, with a single oval-shaped straight canal, were selected and scanned in a micro-CT device. The root canals were prepared with M-Wire Reciproc R25 instruments and filled with gutta-percha and AH Plus sealer...
August 9, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/30083219/partial-necrosis-consequence-of-the-infection-spreading-from-an-adjacent-apical-periodontitis-a-case-report
#12
Saeed Asgary, Leyla Roghanizadeh
As the dental pulp could not be directly inspected before endodontic treatment, indirect evaluation of the pulp status via (para)/clinical tests should be performed which need careful inspection. This report presents a root-treated right maxillary first molar with recurrent abscess formation and a radiolucent periradicular lesion surrounding the distobuccal root of the right maxillary second molar. The patient underwent surgical retreatment, employing CEM root-end filling, which resulted in no relief from sign/symptoms...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083218/combined-endodontic-and-surgical-management-of-twin-rooted-maxillary-lateral-incisor-with-a-palatogingival-groove
#13
Arshad Hasan, Javeria Ali Khan
A case of unusual anatomy in a maxillary lateral incisor is presented. A 20-year old female presented with failing endodontics. Clinical examination and radiographs revealed poorly obturated maxillary left lateral incisor with an untreated patent second root and a palatogingival groove. A decision was made to treat the tooth non-surgically. After removing gutta-percha from main canal, the orifice of second root could not be located from inside the chamber. After determining the position of this root to be mesial and palatal to main canal, gingival tissue was removed from mesio-palatal side and access was extended to include the cingulum and orifice was located mesio-palatally...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083205/regaining-apical-patency-with-manual-and-reciprocating-instrumentation-during-retreatment
#14
Rafaela Cristina Trierveiler Paiva, Caroline Solda, Felipe Vendramini, José Roberto Vanni, Flávia Baldissarelli Marcon, Volmir João Fornari, Mateus Silveira Martins Hartmann
Introduction: Different techniques have been proposed to help achieving apical patency during endodontic treatment and retreatment. The objective of this in vitro study was to compare reestablishment of apical patency in teeth previously subjected to root canal treatment using manual and reciprocating instruments. Methods and Materials: A total of 40 single-rooted extracted human mandibular incisors were selected and prepared using the Hero 642 sequence to 45/0...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30078575/healing-of-apical-periodontitis-after-nonsurgical-root-canal-treatment-the-role-of-statin-intake
#15
Maha Alghofaily, Patricia Tordik, Elaine Romberg, Frederico Martinho, Ashraf F Fouad
INTRODUCTION: Numerous previously undocumented factors may influence the healing of apical periodontitis (AP). The aim of this cohort study was to analyze the association between statin medication intake during the follow-up period and healing of AP. METHODS: Patients who self-reported being on statins during nonsurgical root canal treatment or retreatment and patients who reported never taking statins were included. All patients who received treatment on a tooth with periapical radiolucency in the postgraduate endodontics clinic at the University of Maryland School of Dentistry (2011-2014) were invited for follow-up 2 to 5 years after treatment...
September 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/30054099/postoperative-pain-intensity-after-single-versus-two-visit-nonsurgical-endodontic-retreatment-a-randomized-clinical-trial
#16
Yelda Erdem Hepsenoglu, Tan F Eyuboglu, Mutlu Özcan
INTRODUCTION: The aim of this study was to evaluate postoperative pain after single-visit and 2-visit non-surgical endodontic retreatments with 2 different intracanal medicaments. METHODS: A total of 150 patients with asymptomatic root canal-treated teeth in need of nonsurgical endodontic retreatment were randomly divided into 3 groups (n = 50). Patients were selected randomly from among those without preoperative pain. Patients in group 1 (single visit) were treated in a single visit...
September 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29985524/comparison-of-the-effectiveness-of-various-rotary-and-reciprocating-systems-with-different-surface-treatments-to-remove-gutta-percha-and-an-epoxy-resin-based-sealer-from-straight-root-canals
#17
I Bago, M Suk, M Katić, D Gabrić, I Anić
AIM: To compare the Reciproc Blue, Reciproc and ProTaper Universal Retreatment systems with regard to the effective removal of epoxy resin-based sealer and gutta-percha during the retreatment of oval, straight root canals. METHODOLOGY: Forty-five extracted, human mandibular first premolars with single straight oval canals were selected on the basis of cone beam computed tomography evaluations. The root canals were instrumented with the ProTaper Next system up to the X2 file, and filled with gutta-percha and epoxy resin-based sealer using the cold lateral condensation technique...
July 9, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29962783/comparison-between-the-outcomes-of-two-platelet-rich-concentrates-on-apexogenesis-in-young-permanent-incisors-requiring-endodontic-retreatment
#18
Jaya Prasad, Ida de Noronha de Ataide, Paul Chalakkal, Lalit Kumar Likhyani
Platelet-rich fibrin (PRF) and platelet-rich plasma (PRP) have been successfully used for inducing pulp regeneration in nonvital teeth. This case report highlights the difference between the outcomes of using PRF and PRP for pulp regeneration in a 13-year-old male patient, who had reported with endodontic treatment failure in his upper incisors. Gutta-percha and sealant were removed, and triple antibiotic paste (TAP) was placed in all the root canals and sealed with cavit. Subsequently, after TAP removal, 11 and 12 were treated with PRF, while 21 and 22 were treated with PRP...
June 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29930783/root-canal-treatment-of-dilacerated-second-maxillary-premolars-planning-the-shaping-procedure
#19
Davide Mancino, Naji Kharouf
This article aims at investigating endodontic anatomical variants in the human maxillary premolars allowing the planning of safer and faster shaping procedures. Endodontic literature describes maxillary 2nd premolars as some of the easiest teeth to treat, as they have either one or two straight canals. Rarely they may sometimes have two dilacerated canals. This paper reports two clinical cases of maxillary premolars whose anatomy is quite unusual. In the first case report we describe a maxillary 2nd premolar with a single root and two dilacerated merged canals...
June 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29930782/management-of-a-crown-root-fracture-a-novel-technique-with-interdisciplinary-approach
#20
Amaia Artieda-Estanga, Pablo Castelo-Baz, Alba Bello-Castro, Isabel Ramos-Barbosa, Benjamin Martin-Biedma, Juan Blanco-Carrion
Anterior teeth with subgingival fractures require a complex treatment plan that addresses biologic, functional and aesthetic factors. This case report describes the management of a crown-root fractured maxillary left central incisor. An interdisciplinary approach was used to restore the tooth due to the complex nature of the treatment. Orthodontic extrusion was performed to move the fracture line above the alveolar bone and periodontal surgery to recontour the altered gingival margin. Finally, the incisor was restored performing a root canal retreatment with a fiber post and a full ceramic crown...
June 2018: Journal of Clinical and Experimental Dentistry
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