Adjunctive Steps for Disinfection of the Mandibular Molar Root Canal System: A Correlative Bacteriologic, Micro–Computed Tomography, and Cryopulverization Approach

2016 ◽  
Vol 42 (11) ◽  
pp. 1667-1672 ◽  
Author(s):  
Flávio R.F. Alves ◽  
Carlos V. Andrade-Junior ◽  
Marília F. Marceliano-Alves ◽  
Alejandro R. Pérez ◽  
Isabela N. Rôças ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Root Canal ◽  
Micro Computed Tomography ◽  
Canal System ◽  
System A ◽  
Mandibular Molar ◽  
Root Canal System

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 Analysis of root canal system of maxillary first and second molars and their correlations by cone beam computed tomography

2020 ◽  
Vol 119 (5) ◽  
pp. 968-973 ◽  
Author(s):  
Li-Ting Tzeng ◽  
Mei-Chi Chang ◽  
Shu-Hui Chang ◽  
Chih-Chia Huang ◽  
Yi-Jane Chen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Cone Beam ◽  
Canal System ◽  
Root Canal System

Comparison of Micro-Computed Tomography and Digital Intraoral Radiography to Determine the Accuracy of Digital Radiographic Measurements of Mandibular Molar Teeth in Dogs

2017 ◽  
Vol 34 (4) ◽  
pp. 248-258
Author(s):  
Louise Marron ◽  
Jennifer Rawlinson ◽  
Kirk McGilvray ◽  
Ben Prytherch
Keyword(s):  
Computed Tomography ◽  
Root Canal ◽  
Intraoral Radiography ◽  
Structural Representation ◽  
Micro Computed Tomography ◽  
Radiographic Measurements ◽  
Canal Width ◽  
Mandibular Molar ◽  
Molar Teeth ◽  
Digital Intraoral Radiography

Introduction: The purpose of this study was to compare root and root canal width measurements between digital intraoral radiography (IOR) and micro-computed tomography (μCT). The accuracy of IOR measurements of canine mandibular molars was scrutinized to assess feasibility of developing a model to estimate animal age based on dentinal thickness. Materials and Methods: Thirty-nine canine mandibular first molars were imaged using μCT and IOR. For each tooth, the root and root canal width of the mesial and distal roots were measured by a single observer at 3 marked sites on μCT and IOR. Two different software programs were used to measure the radiographs. The radiograph measurements were compared to each other and to the μCT measurements. The μCT images were considered the anatomic reference standard for structural representation. Results: The data collected demonstrated IOR bias and variability throughout all measurement sites, with some sites being more affected than others. Neither IOR system produced unbiased measurements that closely reflected the μCT measurements consistently. The overall lack of agreement between measurements demonstrated the difficulties in developing a standardized protocol for measuring root and root canal width for the first molar teeth in dogs. Conclusion: Developing a protocol to accurately measure and compare μCT and IOR measurements is challenging. Designing a measurement system that would allow for universal application to age dogs would require continued research utilizing a standardized approach to overcome the limitations identified in this article.

scholarly journals Effect of QMix irrigant in removal of smear layer in root canal system: a systematic review of in vitro studies

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
Margaret Soo Yee Chia ◽  
Abhishek Parolia ◽  
Benjamin Syek Hur Lim ◽  
Jayakumar Jayaraman ◽  
Isabel Cristina Celerino de Moraes Porto
Keyword(s):  
Systematic Review ◽  
Root Canal ◽  
In Vitro Studies ◽  
Smear Layer ◽  
Canal System ◽  
System A ◽  
Root Canal System

scholarly journals Root canal morphology and variations in mandibular second molars: an in vivo cone-beam computed tomography analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Francisco Gomez ◽  
Gisbeli Brea ◽  
Jose Francisco Gomez-Sosa
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Anatomical Variation ◽  
Cone Beam ◽  
Canal System ◽  
Root Canals ◽  
Single Root ◽  
Significant Difference ◽  
Root Canal System

Abstract Background The purpose of this study was to determine the anatomical variations of the root canal system of mandibular second molars using cone-beam computed tomography (CBCT). Methods 190 mandibular second molars cone-beam computed tomography images were reviewed. The evaluation was performed by a radiologist with endodontic experience and two endodontists trained with CBCT technology. Tooth position, number of root and root canals, C-shaped root canal system configuration, presence of extra root (radix), and radicular grooves were assessed. Data was statistically analyzed using The Chi-square test (α = 0,05) to determine any significant difference between gender and the total number of root and root canals, and any significant difference between gender and root canal anatomical variation. Results Overall, 85.5% showed two separated roots, 12.1% a single root, 2.6% three roots or radix. 87.7% showed three root canals, 12.1% two root canals, 2.6% four root canals, and 1.6% a single root canal. 10% showed a single foramen, 75.3% two foramina, 13.6% three foramina and 1% showed four foramina.19.5% showed C-shaped anatomical variation, 51.4% in male patients, 48.6% in female patients. According to Fan classification: C1 13.6% in cervical third, C2 10% in the middle third, C3 17.3% in middle third, 15.5% in apical third, and C4 12.7% in the apical third. Root canals number in these samples were 5.4% a single canal, 21.6% two canals, 70.3% three canals, and 2.7% four canals. The root showed 46% with one foramen, 46% two foramina, and 8% three foramina. Radicular grooves 83.3% were found in the lingual area and 16.2% towards the buccal area. Conclusions The most prevalent anatomic presentation of the evaluated sample was a mandibular second molars with two roots, three root canals, and two apical foramina. Their variation was C-shaped root canals and Radix Paramolaris.

scholarly journals PREVALENCIA DE SEGUNDOS MOLARES MANDIBULARES CON SISTEMA DE CONDUCTO RADICULAR EN FORMA DE C EN CUENCA ECUADOR

reportaendo ◽  
2019 ◽  
Vol 1 (6) ◽  
Author(s):  
ESTEBAN ASTUDILLO ORTÍZ ◽  
MARTHA A. CORNEJO CÓRDOVA
Keyword(s):  
Computed Tomography ◽  
Root Canal ◽  
Cone Beam ◽  
Canal System ◽  
Female Sex ◽  
Dental Office ◽  
Root Canal System ◽  
The City

Objetivo: Determinar mediante tomografía computarizada de haz cónico (CBCT), la prevalencia de segundos molares mandibulares que presentan sistema de conductos radiculares en C en la base de datos de un consultorio particular de especialidades odontoló-gicas de la ciudad de Cuenca en el período enero 2014 - diciem-bre 2016. Material y métodos: fueron evaluados 348 segundos molares mandibulares, se determinó la prevalencia de conducto radicular en forma de C de acuerdo con el sexo y a la localiza-ción. Resultados: la prevalencia de conducto radicular en forma de C en segundos molares mandibulares fue de 33,05%, esta prevalencia no cambió con respecto a la ubicación.De acuerdo con el sexo, la configuración en C fue más prevalente en mujeres (25,86%) que en varones (7,18%). Conclusiones: la prevalencia de segundos molares mandibulares con conducto radicular en forma de C es alta, fue mayor en el sexo femenino y no hubo variación con respecto a la ubicación. SUMMARYObjective: To determine through Cone Bean Computed Tomography (CBCT) the pre-valence of mandibular second molars that present a C-shaped root canal system in the database of a privatespecialtiesprac-tice dental office in the city of Cuenca in the period January 2014 - December 2016. Methods: 348 mandibular second molars were evaluated; the prevalence of C-sha-ped root canal was determined according to sex and location. Results: the prevalence of C-shaped root canal in mandibular second molars were 33.05%, this prevalence did not change with respect to location. According to sex, the C configuration was more preva-lent in women (25, 86%) than in men (7.18%). Conclusions: The prevalence of mandibular second molars with C-shaped root canal are high, was higher in the female sex and there was no variation with respect to the location.Keywords: Cone beam computed tomogra-phy, C-shaped canal, molar, root canal

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