scholarly journals Fracture Incidence of Kedo-S Square Pediatric Rotary Files: A Prospective Clinical Study

2021 ◽  
Author(s):  
Lakshimi Lakshmanan ◽  
Ganesh Jeevanandan ◽  
Prabhadevi C Maganur ◽  
Satish Vishwanathaiah
Keyword(s):  
Clinical Study ◽  
Root Canal ◽  
Prospective Clinical Study ◽  
Fracture Rate ◽  
Root Canals ◽  
Maxillary Molars ◽  
Standardized Protocol ◽  
Maxillary Molar ◽  
Group A ◽  
Primary Focus

Abstract Objective The primary focus of this clinical study was to analyze the probability of occurrence of instrument fracture after root canal preparation of primary molars with the help of Kedo-S Square pediatric rotary file. Materials and Methods Three experienced specialists treated 100 primary maxillary and mandibular molars (335 root canals) using a standardized protocol over 2 months. Biomechanical preparations were carried out using Kedo-S Square file, as per the suggestions given by the manufacturer. Every instrument in Group A helped handle three clinical cases, while for groups B, C and D, they helped in handling 5, 9, and 12 cases, respectively. Making use of an operational microscope, the rotary files, after being pulled out from the canal, were observed. The values were tabulated, and descriptive statistics were performed. Results There were two fractures (2%), of which 1 occurred in group C in the apical 1/3rd of distobuccal canal of maxillary molar, and the other occurred in group D in the apical 1/3rd of mesiobuccal canal of maxillary molar. Conclusions The fracture rate of Kedo-S Square rotary file is quite low. It is primarily in the buccal canals of the maxillary molars and the apical third of the root canal that the instrument has a greater probability of separation.

scholarly journals A Rare Root Canal Configuration of Maxillary Second Molar: A Case Report

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Gautam P. Badole ◽  
Rakesh N. Bahadure ◽  
M. M. Warhadpande ◽  
Rajesh Kubde
Keyword(s):  
Root Canal ◽  
Normal Anatomy ◽  
Canal System ◽  
Second Molar ◽  
Root Canals ◽  
Maxillary Molars ◽  
Maxillary Molar ◽  
Root Canal Morphology ◽  
Root Canal System ◽  
Canal Morphology

A thorough knowledge of root canal morphology is a prerequisite for the endodontic therapy. The maxillary molars, especially the second molars, have the most complicated root canal system in permanent dentition. There are many variations in canal number and configuration in maxillary molars. Treatment may be unsuccessful because the dentist may fail to recognize the unusual canal configuration. The present paper describes a case of a right maxillary second molar with a canal configuration rarely reported in the literature. The tooth had four roots with four root canals, two individual palatal roots (mesiopalatal and distopalatal) with their own separate canals. The mesiobuccal and distobuccal root had normal anatomy. This paper may intensify the complexity of maxillary molar variation and is intended to reinforce clinician’s awareness of the rare morphology of root canals.

Fracture Incidence of WaveOne and Reciproc Files during Root Canal Preparation of up to 3 Posterior Teeth: A Prospective Clinical Study

2017 ◽  
Vol 43 (5) ◽  
pp. 705-708 ◽  
Author(s):  
Clóvis Stephano Pereira Bueno ◽  
Daniel Pinto de Oliveira ◽  
Rina Andrea Pelegrine ◽  
Carlos Eduardo Fontana ◽  
Daniel Guimarães Pedro Rocha ◽  
...  
Keyword(s):  
Clinical Study ◽  
Root Canal ◽  
Fracture Incidence ◽  
Prospective Clinical Study ◽  
Root Canal Preparation ◽  
Posterior Teeth

scholarly journals The ability of Reciproc instruments to reach full working length without glide path preparation: a clinical retrospective study

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3583 ◽  
Author(s):  
Andreas Bartols ◽  
Bernt-Peter Robra ◽  
Winfried Walther
Keyword(s):  
Retrospective Study ◽  
Root Canal ◽  
Primary Root ◽  
Primary Treatment ◽  
Endodontic Treatment ◽  
Binary Logistic Regression Model ◽  
Root Canals ◽  
Maxillary Molars ◽  
Glide Path ◽  
Working Length

Background Reciproc instruments are the only contemporary root canal instruments where glide path preparation is no longer strictly demanded by the manufacturer. As the complete preparation of root canals is associated with success in endodontic treatment we wanted to assess the ability and find predictors for Reciproc instruments to reach full working length (RFWL) in root canals of maxillary molars in primary root canal treatment (1°RCTx) and retreatment (2°RCTx) cases. Methods This retrospective study evaluated 255 endodontic treatment cases of maxillary molars. 180 were 1°RCTx and 75 2°RCTx. All root canals were prepared with Reciproc instruments. The groups were compared and in a binary logistic regression model predictors for RFWL were evaluated. Results A total of 926 root canals were treated with Reciproc without glide path preparation. This was possible in 885 canals (95.6%). In 1°RCTx cases 625 of 649 (96.3%) canals were RFWL and in 2°RCTx cases 260 of 277 (93.9%). In second and third mesiobuccal canals (MB2/3) 90 out of 101 (89.1%) were RFWL with Reciproc in 1°RCTx and in the 2°RCTx treatment group 49 out of 51 cases (96.1%). In mesio-buccal (MB1) canals “2°RCTx” was identified as negative predictor for RFWL (OR 0.24 (CI [0.08–0.77])). In MB2/3 canals full working length was reached less often (OR 0.04 (CI [0.01–0.31])) if the tooth was constricted and more often if MB2/3 and MB1 canals were convergent (OR 4.60 (CI [1.07–19.61])). Discussion Using Reciproc instruments, the vast majority of root canals in primary treatment and retreatment cases can be prepared without glide path preparation.

scholarly journals A short review on the root canal configuration of primary maxillary molars

2020 ◽  
Vol 16 (12) ◽  
pp. 1033-1036
Author(s):  
Deepa Gurunathan ◽  
Keyword(s):  
Root Canal ◽  
Short Review ◽  
Type I ◽  
Cochrane Central Register ◽  
Population Number ◽  
Second Molar ◽  
Root Canals ◽  
Maxillary Molars ◽  
Root Canal Morphology ◽  
Canal Morphology

It is of interest to compile available information on the root canal morphology of primary maxillary molars from known literature. The literature resources used to collect data include Medline/PubMed, The Cochrane Central Register of Clinical Trials, SIGLE and Science Direct. Data consists of type of population, number of teeth per study, number of root canals, canal length and type of root canal configuration. We used data from a total of 13 studies (951 primary maxillary molars). Maxillary molars (1st and 2nd) are dominant for two roots variant. The first molar the mean root length ranges from 7.9mm – 8.1mm. The second molar ranges from 7.2mm-8.5mm. Type I (explain in a phrase) canal morphology is the common variant in both the molars. Data shows that Root Canal morphology shows variations with the diagnostic aid (example micro CT) used and in different ethnic populations.

Influence of preoperative pain intensity on postoperative pain after root canal treatment: A prospective clinical study

2016 ◽  
Vol 45 ◽  
pp. 39-42 ◽  
Author(s):  
Akram Alí ◽  
Juan Gonzalo Olivieri ◽  
Fernando Duran-Sindreu ◽  
Francesc Abella ◽  
Miguel Roig ◽  
...  
Keyword(s):  
Clinical Study ◽  
Postoperative Pain ◽  
Pain Intensity ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Prospective Clinical Study ◽  
Preoperative Pain

scholarly journals Predictive models of pain following root canal treatment: a prospective clinical study

2013 ◽  
Vol 46 (8) ◽  
pp. 784-793 ◽  
Author(s):  
A. Arias ◽  
J. C. de la Macorra ◽  
J. J. Hidalgo ◽  
M. Azabal
Keyword(s):  
Clinical Study ◽  
Predictive Models ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Prospective Clinical Study

scholarly journals In vivo analysis of post space sealing with different adhesive materials

2003 ◽  
Vol 11 (3) ◽  
pp. 168-174 ◽  
Author(s):  
Carlos Alexandre Souza Bier ◽  
José Antônio Poli de Figueiredo ◽  
Álvaro Della Bona ◽  
Patrícia Maria Poli Kopper ◽  
José Roberto Vanni ◽  
...  
Keyword(s):  
Root Canal ◽  
Adhesive System ◽  
Control Group ◽  
Filling Material ◽  
Root Canals ◽  
India Ink ◽  
Group A ◽  
Provisional Restoration ◽  
Post Space

This in vivo study analyzed the sealing ability of two adhesives in post spaces, cyanoacrylate (Super Bonder® - Henkel Loctite Adesivos Ltda., Itapevi, SP, Brazil) and ScotchbondTM Multi-Purpose (3M Dental Products, St. Paul, MN, USA), testing the hypothesis that their use would result in a decreased leakage through the remaining filling material. Forty extracted premolars (80 root canals) of dogs were used. The root canals were cleaned, shaped and filled by the lateral condensation technique using Sealer 26TM. The post space was created removing two thirds of the filling material within the root canal. The canals were randomly divided in three groups, which were treated as follows: Group A received the ScotchbondTM Multi-Purpose adhesive system; for Group B the cyanoacrylate adhesive, Super BonderTM, was employed; and no adhesive was applied into the post space for Group C (control group). A glass ionomer provisional restoration was placed allowing the sealer to set for 72 hours. Then the restoration was removed and the root canal was exposed to the oral environment for 45 days. The dogs were then killed and their jaws were removed. The post spaces were filled with India ink and the teeth were restored for 96 hours. Afterwards, the teeth were extracted and the roots were sectioned at the furcation for allocation to their specific groups. The teeth were turned transparent and the quantitative analysis of leakage was performed using light microscopy. The results showed no significant differences between groups, rejecting the initial hypothesis. Leakage occurred in a great extent in all specimens. Therefore, sealing post spaces with the adhesives used in this study was not an effective method to prevent microleakage.

scholarly journals Fracture strength of roots instrumented with three different single file systems in curved root canals

2015 ◽  
Vol 09 (02) ◽  
pp. 189-193 ◽  
Author(s):  
Bilge Gulsum Nur ◽  
Evren Ok ◽  
Mustafa Altunsoy ◽  
Mehmet Tanriver ◽  
Ismail Davut Capar
Keyword(s):  
Fracture Strength ◽  
File Systems ◽  
Fracture Load ◽  
Control Group ◽  
Root Canals ◽  
Maxillary Molars ◽  
Single File ◽  
Maxillary Molar ◽  
Molar Teeth ◽  
The Mean

ABSTRACT Objective: The aim of this study was to compare the fracture strength of roots instrumented with three different single file rotary systems in curved mesial root canals of maxillary molars. Materials and Methods: Curvatures of 25°–35° on mesial roots of 60 maxillary molar teeth were sectioned below the cementoenamel junction to obtain roots 11 mm in length. The roots were balanced with respect to buccolingual and mesiodistal diameter and weight. They were distributed into three experimental groups and one control group (no instrumentation) (n = 15): Reciproc rotary file (R25, VDW, Munich, Germany), WaveOne Primary rotary file (Dentsply Tulsa Dental Specialties, Tulsa, UK) and OneShape (Micro-Mega, Besancon, France) rotary file. Vertical load was applied until fracture occurred. Data were statistically analyzed using one-way analysis of variance test (P < 0.05). Results: The mean fracture load was 412 ± 72 Newton (N) for the control group, 395 ± 69 N for the Reciproc group, 373 ± 63 N for the WaveOne group and 332 ± 68 N for the OneShape group. The fracture load differences among three experimental groups were not statistically significant (P > 0.05.) Whereas, the fracture loads of control and OneShape groups were significantly different (P = 0.012). Conclusions: Fracture resistance of the roots instrumented with WaveOne and Reciproc file systems were similar to the control group whereas it was observed that OneShape rotary file systems enhance the fracture strength of standardized curved roots when compared with the control group.

scholarly journals Nonvibrating segment predicting glottis carcinoma

2009 ◽  
Vol 56 (3) ◽  
pp. 61-64 ◽  
Author(s):  
M.M. Vukasinovic ◽  
V.B. Djukic ◽  
P.D. Stankovic ◽  
S.B. Krejovic-Trivic ◽  
J.P. Milovanovic ◽  
...  
Keyword(s):  
Clinical Study ◽  
Interpersonal Communication ◽  
Vocal Fold ◽  
Multidimensional Analysis ◽  
Prospective Clinical Study ◽  
Communication Disorder ◽  
Evaluation Tool ◽  
Standardized Protocol ◽  
Golden Standard ◽  
First Interview

Endovideolaryngostroboscopy is the obliged evaluation tool in our everyday practice. Standardized protocol in management of broad spectrum of vocal pathology is useful in clinical, scientific and educational evaluation of patient from the first interview till the end of the treatment. Using of contemporary computerized multidimensional analysis of stroboscopic image we are approaching to optimum evaluation of any kind of interpersonal communication disorder. There were 66 patients in prospective clinical study of correlation between suspect endovideolaryngostroboscopic findings and histo-pathology verification of glottis carcinoma. Asymmetric and irregular vibrations with absent mucosal wave or absent vibrations of one part or of the whole vocal fold was improved as carcinoma in 85% of patients. The most frequent diagnosis was Ca planocellularae invasivum G2 NG 2, with subsequent open chordectomy. In every case of hoarseness longer more than 14 days, endovideolaryngostroboscopy is the golden standard for evaluating the need for microlaryngoscopy and biopsy.

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