This article describes and discusses a method to determine root curvature radius by using cone-beam computed tomography (CBCT). The severity of root canal curvature is essential to select instrument and instrumentation technique. The diagnosis and planning of root canal treatment have traditionally been made based on periapical radiography. However, the higher accuracy of CBCT images to identify anatomic and pathologic alterations compared to panoramic and periapical radiographs has been shown to reduce the incidence of false-negative results. In high-resolution images, the measurement of root curvature radius can be obtained by circumcenter. Based on 3 mathematical points determined with the working tools of Planimp software, it is possible to calculate root curvature radius in both apical and coronal directions. The CBCT-aided method for determination of root curvature radius presented in this article is easy to perform, reproducible and allows a more reliable and predictable endodontic planning, which reflects directly on a more efficacious preparation of curved root canals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/s0103-64402008000200005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Continuous Chelation Reduces Instrumentation Time and Straightening of Double-curved Simulated Root Canals in Bovine Dentin.
J Endod
December 2024
Division of Endodontology, Department of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland. Electronic address:
Introduction: Adding a compatible chelator to the sodium hypochlorite (NaOCl) solution applied during instrumentation may affect shaping efficacy and canal transportation. This was studied in simulated double-curved root canals.
Methods: High-precision computer numerical control milling was used to recreate standardized S-shaped canals from a resin training block in longitudinally sectioned bovine incisor roots.
Repair of the Bulbospongiosus Muscle to Suspend the Penis to the Pubic Bones in Proximal Hypospadias.
J Pediatr Surg
November 2024
Paediatric Urology Department, Royal Manchester Children's Hospital, Oxford Road, Manchester, M13 9WL, United Kingdom.
Background: In proximal hypospadias, ventral curvature is invariable and most have penoscrotal transposition, and we observed that the base of the penis (BOP) was located on the inferior aspect of the pubic bones in those, in contrast to the location of the BOP at the anterior end in normal penises. We also observed an unfused bulbospongiosus muscle (BSM) at surgery in those. The aim was to assess the impact of repairing the unfused BSM or transection and straightening of the urethral plate at the first operation on the low BOP.
View Article and Find Full Text PDFClinical Evaluation of Root Canal Shaping Ability of a Stainless-steel File System Compared to Two Nickel-titanium Single-file Systems.
J Clin Exp Dent
November 2024
Division of Endodontics, Department of Dentistry, University of North Carolina, Chapel Hill, USA. On leave from Tanta University, Egypt.
Background: Root canal shaping is an important phase in endodontic treatment to preserve the integrity of root structures. This clinical study used cone-beam computed tomography (CBCT) to assess the shaping ability of Tornado compared to WaveOne (WO), and OneShape (OS) rotary systems.
Material And Methods: MesioBuccal canals of lower molars with curving angles ranging from 15° to 45° were used in 30 patients to evaluate the apical transportation and centering ability of Tornado, WO, and OS.
Research on Fine-Grained Phenotypic Analysis of Temporal Root Systems - Improved YoloV8seg Applied for Fine-Grained Analysis of In Situ Root Temporal Phenotypes.
Adv Sci (Weinh)
December 2024
State Key Laboratory of North China Crop Improvement and Regulation, College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding, 071000, China.
Root systems are crucial organs for crops to absorb water and nutrients. Conducting phenotypic analysis on roots is of great importance. To date, methods for root system phenotypic analysis have predominantly focused on semantic segmentation, integrating phenotypic extraction software to achieve comprehensive root phenotype analysis.
View Article and Find Full Text PDFRadicular Dentin Thickness and Root Canal Morphology of Mandibular Incisors in Indian Subpopulation Using Cone Beam Computed Tomography.
Cureus
November 2024
Department of Conservative Dentistry and Endodontics, Vokkaligara Sangha Dental College and Hospital, Bengaluru, IND.
Aim Using two classifications, this study assessed root morphology and canal configuration and measured the Dentin thickness (DT) and canal shapes. Methods Cone beam computed tomography (CBCT) with 400 Mandibular Incisors was collected and assessed for the number, length, curvature of roots, number of canals, bifurcation level, configurations based on Vertucci's and Ahmed's classification, DT and canal shape at 3, 6, 9 mm from the apex. The collected data was subjected to statistical analysis with a level of significance at p<0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!