scholarly journals Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alfredo Sierra-Cristancho ◽  
Luis González-Osuna ◽  
Daniela Poblete ◽  
Emilio A. Cafferata ◽  
Paola Carvajal ◽  
...  
Keyword(s):  
Root Canal ◽  
Multiple Root ◽  
Root Anatomy ◽  
Type I ◽  
Micro Computed Tomography ◽  
Canal System ◽  
Root Canals ◽  
Wide Range ◽  
Root Canal System ◽  
Chilean Population

AbstractThis study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertucci’s and Ahmed’s criteria. The radicular grooves were categorized using the ASUDAS system, and the presence of Tomes’ anomalous root was associated with Ahmed’s score. A single root canal was identified in 65.05% of teeth, being configuration type I according to Vertucci’s criteria and code 1MP1 according to Ahmed’s criteria. Radicular grooves were observed in 39.25% of teeth. The ASUDAS scores for radicular grooves were 60.75%, 13.98%, 12.36%, 10.22%, 2.15%, and 0.54%, from grade 0 to grade 5, respectively. The presence of Tomes’ anomalous root was identified only in teeth with multiple root canals, and it was more frequently associated with code 1MP1–2 of Ahmed’s criteria. The root canal system morphology of mandibular first premolars showed a wide range of anatomical variations in the Chilean population. Teeth with multiple root canals had a higher incidence of radicular grooves, which were closely related to more complex internal anatomy. Only teeth with multiple root canals presented Tomes’ anomalous root.

scholarly journals Variations in the Root Form and Root Canal Morphology of Permanent Mandibular First Molars in a Sri Lankan Population

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Roshan Peiris ◽  
Uthpala Malwatte ◽  
Janak Abayakoon ◽  
Anuradha Wettasinghe
Keyword(s):  
Root Canal ◽  
Population Sample ◽  
Type I ◽  
Sri Lankan ◽  
Canal System ◽  
Root Canals ◽  
Type Iv ◽  
Root Canal Morphology ◽  
Root Canal System ◽  
Canal Morphology

The present study was conducted to determine the number of roots and morphology of the root canal system of permanent mandibular first molars (M1) in a Sri Lankan population. Sample of 529 M1 teeth was used. The number of roots was examined and the lengths of the mesial and distal roots were measured to the nearest 0.01 mm. Vacuum injection protocol was used to inject China ink into the root canal system, making it transparent. Root canal morphology was recorded using Vertucci’s classification. Presence of furcation canals, position of lateral canals, intercanal communications, level of bifurcation, and convergence of the root canal system were recorded. M1 showed three roots in 4.1% of the sample. Commonest root canal morphology of the mesial root was type IV and the distal root was type I. The level of bifurcation of the root canals was commonly observed in the cervical one-third of the root while convergence was observed in the apical one-third in both roots. Prevalence of three rooted mandibular first molars is less than 5%. Mesial root showed the most variable canal morphology. Prevalence of furcation canals was 1.5% while that of middle mesial canals was 0.2%.

scholarly journals Analysis of the Morpho-Geometrical Changes of the Root Canal System Produced by TF Adaptive vs. BioRace: A Micro-Computed Tomography Study

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 531
Author(s):  
Loai Alsofi ◽  
Muhannad Al Harbi ◽  
Martin Stauber ◽  
Khaled Balto
Keyword(s):  
Surface Area ◽  
Root Canal ◽  
Type I ◽  
Structure Model ◽  
Canal Surface ◽  
Canal System ◽  
Structure Model Index ◽  
Continuous Rotation ◽  
Before And After ◽  
Root Canal System

We aimed to analyze the morpho-geometric changes of the root canal system created by two rotary systems (TF Adaptive and BioRace) using micro-CT technology. Two concepts of rotary file system kinematics, continuous rotation and adaptive kinematics, were used in root canal preparation. Twenty mandibular molars (n = 20) were selected with the following criteria: the teeth have mesial roots with a single and continuous isthmus connecting the mesiobuccal and mesiolingual canals (Vertucci’s Type I configuration) and distal roots with independent canals. Teeth were scanned at a resolution of 14 μm. Canals were divided equally into two groups and then enlarged sequentially using the BioRace system and TF Adaptive system according to manufacturer protocol. Co-registered images, before and after preparation, were evaluated for morphometric measurements of canal surface area, volume, structure model index, thickness, straightening, and un-instrumented surface area. Before and after preparation, data were statistically analyzed using a paired sample t-test. After preparation, data were analyzed using an unpaired sample test. The preparation by both systems significantly changed canal surface area, volume, structure model index, and thickness in both systems. There were no significant differences between instrument types with respect to these parameters (p > 0.05). TF Adaptive was associated with less straightening (8% compared with 17% for BioRace in the mesial canal, p > 0.05). Both instrumentation systems produced canal preparations with adequate geometrical changes. BioRace straightened the mesial canals more than TF Adaptive.

scholarly journals Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems

2011 ◽  
Vol 12 (5) ◽  
pp. 368-371 ◽  
Author(s):  
Matheus Melo Pithon ◽  
Deyla Duarte Vilela ◽  
Manoel Matos Neto ◽  
Alexandre Mascarenhas Villela
Keyword(s):  
Calcium Hydroxide ◽  
Clinical Significance ◽  
Root Canal ◽  
Canal System ◽  
Root Canals ◽  
Anterior Teeth ◽  
Knowing That ◽  
Group I ◽  
Canal Systems ◽  
Root Canal System

ABSTRACT Aim To evaluate the interference of the intracanal medication Calen® (SSWhite, São Paulo, Brazil) on the filling of simulated lateral canals. Materials and methods Twenty human anterior teeth were used. Before the endodontic filling procedures the access of cavity was made, and after this root canals were made in all the teeth to simulate the presence of lateral canals. After preparation, the teeth were randomly divided into two groups (n=10). In group I, the root canal system was filled directly after chemicalmechanical preparation; in group II, endodontic treatment was performed in multiple sessions, and after preparation the calcium hydroxide-based intracanal medication Calen® was inserted. After the period of 7 days, the root canals were vigorously irrigated and then they were filled. Next, the teeth were radiographed to verify the quality of the filling. Results The results demonstrated that the teeth treated in a single session, without calcium hydroxide medication, presented 47 canals out of 60 with radiographic evidence of filling, whereas the teeth in which intracanal medication was used, only 07 presented a radiographic image compatible with filling (p < 0.05). Conclusion The use of the calcium hydroxide-based medication Calen made it difficult to obtain a hermetic filling of the root canal system. Clinical significance The clinical significance of this work basing on the fact that once the dentist knowing that property obliteration of calcium hydroxide can be taken care when they are used in the presence of lateral canals. How to cite this article Vilela DD, Neto MM, Villela AM, Pithon MM. Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems . J Contemp Dent Pract 2011;12(5):368-371.

scholarly journals COMPARATIVE QUALITY ASSESSMENT OF ROOT CANAL PREPARATION WITH DIFFERENT SYSTEMS OF ENDODONTIC INSTRUMENTS

2020 ◽  
Vol 73 (6) ◽  
pp. 1145-1148
Author(s):  
Maryna A. Goray ◽  
Nataliia G. Gadzhula ◽  
Olena V. Muntian ◽  
Olena L. Cherepakha ◽  
Larysa F. Kurdysh
Keyword(s):  
Root Canal ◽  
Canal System ◽  
Universal Group ◽  
Root Canals ◽  
Root Canal System ◽  
High Degree ◽  
Dentine Surface ◽  
Apical Area

The aim: To compare the quality of root canal system preparation with the use of manual K-files, machine Protaper Universal and Silk files by in vitro studies. Materials and methods: Root canals preparation in 45 extracted premolars was performed in three groups with 15 teeth in each with K-files, Protaper Universal and Silk files. Transverse sections of the dental root were prepared. Histologically were assessed: amount of sawdust and predentin remaining, the purity degree of root canal walls. Results: When calculating the sawdust amount at the distance of 3 mm from an apex, a high degree of contamination was observed in the manual K-file group: 53.3% versus 33.3% in the Protaper Universal group and against 20.0% in the Silk file group. The amount of predentin after root canal treatment with manual files reached 25-30%. At the distance of 5 mm from the apex the root canals with high and medium purity degree were detected in 86.7% with Silk files and 80.0% with Protaper Universal files used. All predentin was removed when working with Protaper Universal and Silk files. Conclusions: In the histological sections of the root canals treated with K-files, the larger amount of dentine particles and predentin has been revealed than when using machine tools. The largest amount of predentin and dentine were removed with Protaper Universal files. Silk endodontic system is better for treatment of the root canals dentine surface in the apical area compared to Protaper Universal and K-files.

scholarly journals Endodontic Irrigation Solutions: A Review

2017 ◽  
Vol 7 (3) ◽  
pp. 54 ◽  
Author(s):  
Celalettin Topbas ◽  
Ozkan Adiguzel
Keyword(s):  
Root Canal ◽  
Native Speakers ◽  
Antimicrobial Properties ◽  
Canal System ◽  
Root Canals ◽  
Native Speakers Of English ◽  
Root Canal System ◽  
Dentin Tubules ◽  
Endodontic Irrigation ◽  
Organic Tissue

The goal of endodontic treatment is to remove all the vital and necrotic tissues, microorganisms and microbial byproducts from root canal system. This goal can be achieved through chemical and mechanical debridement of root canals. This article narrates the specifics and requirements of the irrigation solutions. Sodium hypochlorite is proposed as the primary irrigant by virtue of its organic tissue dissolution capacity and broad antimicrobial properties. On the other hand, chelation solutions are recommended as auxiliary solutions to remove the smear layer or to hinder its formation on dentin surface. Thus, it's hoped that sealers and root canal fillers can penetrate to dentin tubules and obturate the canals hermetically. There are new studies on traditional irrigants especially on some irrigants that can replace sodium hypoclorite. This article reviews the new irrigants which can be used in future endodontic practice, and their advantages and limitations. Moreover, actions and interactions of recently used irrigants are adverted.   How to cite this article: Topbas C, Adiguzel O. Endodontic Irrigation Solutions: A Review. Int Dent Res 2017;7:54-61.  Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Endodontic Retreatment of a Mandibular Second Premolar with Four Roots and Four Canals: A Case Report

2020 ◽  
Author(s):  
Girish Nanjannawar ◽  
Saquib Mulla ◽  
Divya Gupta ◽  
Sharad Kamat
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Accurate Diagnosis ◽  
Clinical Implications ◽  
Canal System ◽  
Root Canals ◽  
Single Root ◽  
Comprehensive Knowledge ◽  
Root Canal System ◽  
Endodontic Retreatment

It is a well-recognised fact that incomplete cleaning, shaping and obturation of root canals will lead to endodontic failure. Mandibular second premolars usually have a single root and a single root canal. The presence of four separate roots and four root canals is quite rare. Hence, a comprehensive knowledge about the normal canal configuration along with its variations becomes an indispensable pre-requisite to achieve the success of endodontic treatment. Authors hereby present a case of a 26-year-old male patient and describe its succesful treatment of the mandibular second premolar with four roots and four root canals. The clinical implications of this paper aim at establishing an accurate diagnosis of the root canal system using diagnostic aids such as angulated radiographs and making use of advanced endodontic instruments for successful retreatment of endodontic therapy (C+ files and NiTi rotary endodontic instruments).

Maxillary Lateral Incisor with 3 Root Canals: A Case Report

2019 ◽  
Vol 10 (2) ◽  
pp. 179-182
Author(s):  
Mario Buonvivere ◽  
Matteo Buonvivere
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Rare Case ◽  
Lateral Incisor ◽  
Complex Root ◽  
Canal System ◽  
Root Canals ◽  
Single Root ◽  
Maxillary Lateral Incisor ◽  
Root Canal System

The proper knowledge of the root canal system anatomy is crucial to perform successful endodontic treatments. Maxillary lateral incisors usually have a single root. However, aberrant canal configurations of this tooth have been reported in the literature. The clinician should be aware of the difficulties arising from this more complex root canal anatomy and should be able to manage them. A rare case of a maxillary lateral incisor with three root canals is presented in this article; the challenge of diagnosis and treatment in similar situations is also discussed.

scholarly journals Removal of Separated Endodontic K-File with the Aid of Hypodermic Needle and Cyanoacrylate

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Luciana Maria Arcanjo Frota ◽  
Bernardo Almeida Aguiar ◽  
Maria Gerusa Brito Aragão ◽  
Bruno Carvalho de Vasconcelos
Keyword(s):  
Low Cost ◽  
Hypodermic Needle ◽  
Alternative Technique ◽  
Canal System ◽  
Root Canals ◽  
Cyanoacrylate Adhesive ◽  
Wide Range ◽  
Simple Alternative ◽  
Root Canal System ◽  
Endodontic Retreatment

A wide range of accidents might happen during the treatment of the root canal system, where the instrument separation is one of the most unpleasant occurrences. Several techniques have been developed to facilitate the removal of the fragments; however, they generally require specific devices that not always are available to the clinician. The aim of this case report is to present a simple alternative technique to remove from the root canals manual instruments fractured during the treatment. The case has its outline based on a 31-year-old patient who sought the clinic to have her maxillary first left premolar rehabilitated. The clinic and radiographic examinations revealed the need of endodontic retreatment and the presence of a fragment of a K-file instrument localized at the apical third of the palatine canal. The retreatment was initiated by the removal of the obturation materials followed by several unsuccessful attempts to take out the fractured instrument. Hence, it was chosen to perform the fragment removal using a hypodermic needle and cyanoacrylate adhesive. The fragment easily came out, which reinforces the technique adopted as a safe, simple, and low cost mean to solve the problem of fractured instruments using only items already present in the endodontic arsenal.

scholarly journals Antimicrobial and Antibiofilm Properties of Bioceramic Materials in Endodontics

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7594
Author(s):  
Zhejun Wang ◽  
Ya Shen ◽  
Markus Haapasalo
Keyword(s):  
Root Canal ◽  
Antimicrobial Agents ◽  
Chemical Properties ◽  
Canal System ◽  
Root Canals ◽  
Physico Chemical ◽  
Infected Root ◽  
Root Canal System ◽  
Dental Applications ◽  
Infected Root Canal

Microbes are prevalent in the root canals of necrotic teeth, and they are the cause of primary and post-treatment apical periodontitis. Bacteria can dwell within the infected root canal system as surface-adherent biofilm structures, which exhibit high resistance to antimicrobial agents. Bioceramic materials, with their biocompatible nature and excellent physico-chemical properties, have been widely used in dental applications, including endodontics. This review focuses on the application of bioceramic technology in endodontic disinfection and the antibiofilm effects of endodontic bioceramic materials. Different bioceramic materials have shown different levels of antibiofilm effects. New supplements have emerged to potentially enhance the antibiofilm properties of bioceramics aiming to achieve the goal of microbial elimination in the root canal system.

scholarly journals Cone Beam Computed Tomography (Cbct) and Endodontic Microscopic Assessment of C-Shaped Canal Systems in Mandibular Second Molars

2020 ◽  
Vol 11 (3) ◽  
pp. 3999-4005
Author(s):  
Sudha Mattigatti
Keyword(s):  
Root Canal ◽  
Root Anatomy ◽  
Root Canals ◽  
Wide Range ◽  
Canal Systems ◽  
Care Outcomes ◽  
Canal Network ◽  
Mapping Techniques ◽  
Network Studies ◽  
Shape Analyses

By knowing the anatomy of the tooth including root canal, dentists also have gathered physiologically anomalous requirements for effective root canal treatment. An exceptional morphology is present in the root canal system known as the C-shaped root network. A substantial volume of evidence already has come out on C-shaped root canal systems. The analysis provides an extensive description of root through root canals in the form of C. Characteristics of this exceptional morphology were studied mainly focused on macroscopic, microscopic and functional measurements including odontogenetic tooth shape analyses. To trying to clarify the clinical nature of C-shaped root canals, we sought to isolate them both. In addition to summarizing existing experiences, another of the objectives of this investigation was to find evidence that supports our interpretation of the C shaped root canal network. In fact, new advances in 3D mapping techniques help clarify the reliable etiology of the physiology of the Cshaped root canal network. Studies of extreme scenarios such as C-shaped root anatomy or morphology with rectangle and squared channels will also help us gain the wide range with root morphologies found in man’s teeth which eventually result in better care outcomes for patients and dentists and their satisfaction.

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