Introduction: The study examined mandibular premolars' root and canal distribution across genders and sides.
Materials And Methods: Cone-beam computed tomography (CBCT) imaging of mandibular premolars was performed using SINORA ORTHOPHOS XG 3D, with specific parameters set.
Results: Cone-beam computed tomography (CBCT) imaging of 100 participants revealed mostly single-rooted premolars, with slight variations, notably among females. Mandibular first premolars predominantly had single canals and roots, with a higher occurrence of two canals in females. Statistical analysis showed no significant gender- or side-based differences in root distribution. The findings underscore gender-specific variations in premolar morphology, highlighting the importance of tailored treatment planning, especially for the left side.
Conclusion: While CBCT proves valuable, further research is needed to optimize its utility in endodontic decision-making.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11426840 | PMC |
http://dx.doi.org/10.4103/jpbs.jpbs_248_24 | DOI Listing |
Am J Orthod Dentofacial Orthop
December 2024
Discipline of Orthodontics, School of Dentistry, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia; Department of Orthodontics, Sydney Dental Hospital, Sydney Local Health District, Sydney, Australia; Division of Orthodontics, University Clinics of Dental Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland. Electronic address:
Introduction: The dentoskeletal effects of clear aligner treatment (CAT) with Invisalign vs temporary skeletal anchorage device-anchored Sydney intrusion spring (SIS) were compared in consecutively treated growing patients with anterior open bite using cone-beam computed tomography scans.
Methods: Fifteen adolescents treated exclusively with Invisalign, and 14 with SIS (first-phase treatment) were assessed retrospectively. Rigid-wise, voxel-based registration of pretreatment and posttreatment cone-beam computed tomography scans were performed using the anterior cranial base, maxillary plane, and mandibular body as reference regions.
Dent Res J (Isfahan)
November 2024
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.
Background: The ethmoid roof separates the ethmoid cells from the anterior cranial fossa. From the medial side, the roof of the ethmoid is connected to the lateral lamella of the ethmoid plate, which is the thinnest bone at the base of the skull and is most vulnerable to damage during endoscopic surgeries. The purpose of this study is to investigate the height of the lateral lamella in patients with hypoplasia/aplasia of the paranasal sinuses and deviation of the nasal septum using reconstructed multiplanar images by cone-beam computed tomography (CBCT).
View Article and Find Full Text PDFBMC Oral Health
December 2024
Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Background: Dens invaginatus is a developmental abnormality originating from tooth development, including coronal invaginatus and radicular invaginatus. The reported incidence varies greatly due to diagnostic techniques, classification criteria and race. The incidence of dens invaginatus in China was not clear, and the impact of dens invaginatus on periodontal support tissue were rarely reported.
View Article and Find Full Text PDFPract Radiat Oncol
December 2024
Department of Radiation Oncology, Willis Knighton Cancer Center, 2600 Kings Highway, Shreveport, Louisiana, USA 71103 &, Department of Clinical Research, University of Jamestown, Fargo, ND, USA. Electronic address:
Purpose: Motion management presents a significant challenge in thoracic stereotactic ablative radiotherapy (SABR). Currently, a 5.0 mm standard planning target volume (PTV) margin is widely used to ensure adequate dose to the tumor.
View Article and Find Full Text PDFJ Dent
December 2024
Professor and Clinic director, Clinic of General-, Special Care- and Geriatric Dentistry, Center for Dental Medicine, University of Zurich, Zurich Switzerland. Electronic address:
Objectives: This double-blind randomised crossover trial aimed to compare the aesthetic outcomes of CAD-CAM manufactured provisional restorations created using cone beam computed tomography (CBCT) and intraoral scanners (IOS) acquisition methods.
Methods: Twelve participants (mean-age: 38 ± 5 years) requiring full mouth rehabilitation were included in this crossover trial. Two sets of identical CAD-CAM provisional restorations, differing only in the method of data acquisition (A: CBCT, B: IOS), were fabricated.
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