Presença do canal mésio-vestibular 2 em primeiros molares superiores – série de casos

2021 ◽  
Vol 12 (46) ◽  
pp. 111-116
Author(s):  
Letícia Tainá de Oliveira Lemes ◽  
Wellington Fernandes Falcão ◽  
Tais Kich ◽  
Tiago Lange dos Santos
Keyword(s):  
Sodium Hypochlorite ◽  
Spontaneous Pain ◽  
Radiographic Analysis ◽  
Thermal Tests ◽  
Root Canals ◽  
Maxillary Molars ◽  
Maxillary Molar ◽  
History Of ◽  
Ah Plus ◽  
System File

The aim of this study was to report a series of clinical cases that show how the presence of the mesiovestibular 2 canal l(MV2) in the first maxillary molar is truly found. Patients complained of spontaneous pain with a history of element 26 or 16, some with deep caries and extensive restorations. Vertical and horizontal percussion tests, thermal tests. and radiographic analysis were performed. The canal was disinfected with abundant irrigation of 2.5% sodium hypochlorite. After, the root canals were located with files # 8 and #10, then the foraminal patency was performed with the EASY system file #25.01, root canal preparations were performed with EASY files from the Logic series #25.05, #40.05 and files #25.04, #30.03, #35.03. After using each file, irrigation with sodium hypochlorite was performed. After the canals were prepared, the cone test was carried out. After drying the canals, the final filling was performed with calibrated Tanari cones and AH plus cement. It was concluded that the occurrence of MV2 canal is high in the first maxillary molars and their location for disinfection is of paramount importance.

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 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 Management of Calcific metamorphosis by conventional Root Canal Treatment. A case report

2020 ◽  
Vol 10 (2) ◽  
pp. 21-25
Author(s):  
Kazi Hossain Mahmud ◽  
Md Ashif Iqbal ◽  
Fida Hasan Talukder
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Traumatic Injury ◽  
Operating Time ◽  
Signs And Symptoms ◽  
Conventional Technique ◽  
Root Canal Treatment ◽  
Spontaneous Pain ◽  
Root Canals ◽  
History Of

The calcified root canals cause many problems during endodontic treatment due to difficulty in canal orifice location, negotiation, preparation as well as consideration of operating time. Most serious problem may arise during any phase of root canal treatment procedure even taking a lot of precaution. Partial or total obliteration of pulpal chamber or root canal space is the most common consequences of a tooth which is exposed to traumatic injury. The most common presentation of such a tooth is complete or partial loss of the pulp space radiographically and discoloration particularly yellow discoloration of the clinical crown. Around 7–27% of teeth having the feature of partial canal calcification shows features of pulp necrosis accompanied by radiographic signs of chronic periapical periodontitis. Very low numbers of teeth( 2-3%) may present with total obliteration of pulp chamber and the root canal system . Teeth with such features is challenging to provide a successful root canal treatment; . In this case report a 21 years old female patient attended with complaints of discoloration , mild spontaneous pain , and several episodes of gingival swelling with history of trauma four years back in her both maxillary central incisors. The case was evaluated clinico radiographically and the diagnosis was a case of calcification both maxillary central incisors. Root canal treatment to manage the calcified canals following conventional technique was planned . After treatment patient was free from subjective and objective signs and symptoms and she was advised for periodic follow-up Update Dent. Coll. j: 2020; 10 (2): 21-25

scholarly journals Morphological characteristics of mesiobuccal root canals of the first maxillary molars

2010 ◽  
Vol 138 (7-8) ◽  
pp. 414-419 ◽  
Author(s):  
Katarina Beljic-Ivanovic ◽  
Nevenka Teodorovic
Keyword(s):  
Human Subjects ◽  
Morphological Characteristics ◽  
Type Ii ◽  
Statistical Parameters ◽  
Root Canals ◽  
Type Iv ◽  
Maxillary Molars ◽  
Maxillary Molar ◽  
In Series ◽  
Treatment Objective

Introduction. The first maxillary molar is a tooth with three roots, and mesiobuccal one is with the most complex canal morphology. Factors influencing variations of its morphology are numerous, and may significantly complicate endodontic treatment. Objective. The objective was to investigate the number, configuration and curvature orientation of the mesiobuccal root canals in the maxillary first molars. Methods. The study was conducted on 200 mesiobuccal (MB) roots of extracted first molars in human subjects using radiography. In each canal Flexofile was introduced until reaching the apical foramen and the root was then radiographed in series from two projections. Number of root canals (MB1, MB2 and MB3), configuration according to Vertucci classification, and the orientation of the curvature were established. Relevant statistical parameters and the significance of differences were computed (p<0.05). Results. Of total 200 mesiobuccal roots 86.5% were with two, 9% with three, and 4.5% with a single canal. Most frequent configurations were type IV (36%) and II (34.5%). From the clinical projection all MB1 canals were oriented distally, from the proximal 78% palatally and 22% buccally. The orientation of all MB2 canals was distal from the clinical projection, from the proximal projection 76% were oriented palatally, and 24% buccally. The MB3 canal was always oriented distally from the clinical projection, and buccally from the proximal aspect. Conclusion. The mesiobuccal roots of the first maxillary molars showed multiple canals in 96%, with dominant Vertucci type II and IV of configuration. All canals were curved.

scholarly journals Effect of different rotary instrumentation techniques and thermoplastic filling on apical sealing

2004 ◽  
Vol 12 (1) ◽  
pp. 89-92 ◽  
Author(s):  
Mario Roberto Leonardo ◽  
Devanir de Araújo Cervi ◽  
Juliane Maria Guerreiro Tanomaru ◽  
Léa Assed Bezerra da Silva
Keyword(s):  
Methylene Blue ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Sodium Hypochlorite Solution ◽  
Root Canal Filling ◽  
Hypochlorite Solution ◽  
Root Canals ◽  
Working Length ◽  
Ah Plus

The aim of this study was to evaluate apical sealing after root canal treatment using two different rotary instrumentation techniques and two thermoplastic root canal filling techniques. The study was performed in 115 human extracted mandibular premolars. After coronary access the apical foramen was opened with a # 15 K file 1 mm beyond the apex. Cleaning and shaping was subsequently carried out at the working length, 1 mm from the apex, with ProFile .04/.06 system (Dentsply/Maillefer), Quantec (Analytic Endodontics/Kerr) or by the step-back technique with 1% sodium hypochlorite solution as irrigating solution. The root canals were filled with Thermafil (Dentsply/Maillefer) or Microseal (Analytic Endodontics/Kerr) or by lateral condensation technique using AH Plus sealer (epoxy type). The teeth were immersed in 2% methylene blue under vacuum. Then, they were longitudinally sectioned. The results showed that the association of Profile and Thermafil Plus provide the best results (p<0.05). In conclusion, the association of different rotary instrumentation techniques and different filling systems influenced the apical sealing.

scholarly journals A Comparative study to quantify the area of obturating material, sealer and voids in root canals obturated with Resilon/Epiphany and gutta-percha with different sealers

2014 ◽  
Vol 3 (1) ◽  
pp. 8-13
Author(s):  
M Vikram ◽  
N Shetty ◽  
VP Singh
Keyword(s):  
Comparative Study ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Filling Material ◽  
Bonferroni Correction ◽  
Medical Sciences ◽  
Root Canals ◽  
Gutta Percha ◽  
Ah Plus

Background: Complete obturation of the root canal with an inert filling material and creation of a fluid-tight seal are among the major goals of successful endodontic treatment. Methods: Extracted mandibular premolar teeth were decoronated, prepared in a crown-down fashion and irrigated with 2.5% sodium hypochlorite and 17% EDTA. The specimens were randomly assigned into 4groups (n=10/each) and obturated with gutta-percha and Resilon/Epiphanywith different sealers. Horizontal sections were obtained of the coronal, middle and apical third at levels of 14-mm, 8-mm and 2-mm from the apex respectively and were viewed under magnification. The area of obturating material, sealer and voids were calculated using Image Jsoftware. Statistical comparisons between the Resilon and gutta-percha groups were made with Kruskal-Wallis Test and intergroup comparisions were made by Mann-Whitney U test with Bonferroni correction. Results: The results of this study showed that root canals obturated with gutta-percha or Resilon with Epiphany as sealer had significantly less area of sealer plus voids and voids alone as compared to root canals obturated with gutta-percha and AH Plus as sealer or gutta-percha and GuttaFlow. Conclusion: From the results of this study it can be concluded that methacrylate resin-based sealer Epiphany will lead to a better obturation of the root canals and adhesive sealers hold a better prospective. Nepal Journal of Medical Sciences | Volume 03 | Number 01 | January-June 2014 | Page 8-13 DOI: http://dx.doi.org/10.3126/njms.v3i1.10342

scholarly journals Apical and periapical repair of dogs' teeth with periapical lesions after endodontic treatment with different root canal sealers

2003 ◽  
Vol 17 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Mário Roberto Leonardo ◽  
Antônio Alberto Medeiros Salgado ◽  
Léa Assed Bezerra da Silva ◽  
Mário Tanomaru Filho
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Microscopic Analysis ◽  
Periapical Lesion ◽  
Periapical Lesions ◽  
Root Canals ◽  
Gutta Percha ◽  
Ah Plus ◽  
Root Canal Sealers ◽  
Hematoxylin Eosin

The aim of this study was to evaluate the apical and periapical repair after root canal treatment of dogs' teeth with pulp necrosis and chronic periapical lesion using different root canal sealers. After periapical lesion induction, forty-four root canals of 3 dogs were submitted to biomechanical preparation using 5.25% sodium hypochlorite as an irrigating solution. A calcium hydroxide dressing (Calen PMCC) was applied for 15 days and the root canals were filled using the lateral condensation technique with gutta-percha points and Sealapex, AH Plus or Sealer Plus for sealing. After 180 days, the animals were sacrificed by anesthetic overdose and the obtained histological sections were stained with hematoxylin-eosin for optical microscopic analysis of the apical and periapical repair. The groups filled with Sealapex and AH Plus had better histological repair (p < 0.05) than the group filled with Sealer Plus, that had unsatisfactory results.

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.

scholarly journals Evaluation of the Bond Strength of AH Plus Sealer after Irrigation of the Root Canals Using Nano-Silver and Sodium Hypochlorite

2019 ◽  
Vol 65 (2) ◽  
pp. 1517-1526
Author(s):  
Yousra Nashaat ◽  
Hadil Sabry ◽  
Nada Omar ◽  
Ahmed Negm ◽  
Walaa Ghoneim
Keyword(s):  
Bond Strength ◽  
Sodium Hypochlorite ◽  
Nano Silver ◽  
Root Canals ◽  
Ah Plus

scholarly journals Geminated Maxillary Lateral Incisor with Two Root Canals

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Nayara Romano ◽  
Luis Eduardo Souza-Flamini ◽  
Isabela Lima Mendonça ◽  
Ricardo Gariba Silva ◽  
Antonio Miranda Cruz-Filho
Keyword(s):  
Lateral Incisor ◽  
Spontaneous Pain ◽  
Root Canals ◽  
Periodontal Tissues ◽  
Crown Root ◽  
Gutta Percha ◽  
Patient Reported ◽  
Vitality Test ◽  
Ah Plus ◽  
Maxillary Lateral Incisor

This paper reports a case of gemination in a maxillary lateral incisor with two root canals and crown-root dilaceration. A 16-year-old male patient was referred for endodontic treatment of the maxillary left lateral incisor and evaluation of esthetic and functional complaints in the anterior region. The patient reported trauma to the anterior primary teeth. There was no spontaneous pain, but the tooth responded positively to the vertical percussion test and negatively to the pulp vitality test. Clinical examination showed esthetic and functional alterations and normal periodontal tissues. CBCT imaging confirmed the suspicion of gemination and crown-root dilaceration and also revealed the presence of two root canals and periapical bone rarefaction. The root canals were instrumented with Reciproc R40 and 1% NaOCl irrigation and were filled by lateral condensation of gutta-percha and AH Plus sealer. The tooth was definitely restored with composite resin to recover esthetics. Continued follow-up over 6 months has shown absence of pain or clinical alterations as well as radiographic image suggestive of apical repair.

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