Tilted versus axial implant distribution in the posterior edentulous maxilla: A CBCT analysis

2021 ◽  
Author(s):  
Adam Hamilton ◽  
Faris Z. Jamjoom ◽  
Muhsen Alnasser ◽  
Jacqueline R. Starr ◽  
Bernard Friedland ◽  
...  
Keyword(s):  
Cbct Analysis

scholarly journals The Role of Cone-Beam Computed Tomography in Diagnostics of Cystic Masses of the Jaw

2017 ◽  
pp. 14-19
Author(s):  
M. A. Batova
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Cone Beam ◽  
Incisive Canal ◽  
Computed Tomographic ◽  
Cystic Masses ◽  
Cbct Analysis ◽  
Tomography Analysis

Research objective. The study aimed to evaluate cone-beam computed tomography (CBCT) capabilities in diagnostics of cystic masses of the jaw.Methods. Over a period of 2015–2016 32 patients age 6 to 67 underwent both panoramic tomography and CBCT (using panoramic tomographic scanner STRATO 2000 and cone-beam computed tomographic scanner i-Cat respectively). 47% (n = 15) of the participants were women, 53% (n = 17) – men. Radiation exposure for a single procedure amounts to 0,05 mSv for panoramic tomography, 0,07 mSv for CBCT (FOV =13 cm), 0,06 mSv for CBCT (FOV =8 cm).Results. Comparative analysis of obtained results demonstrates that CBCT showed 54% (n = 27) more cystic masses of the jaws than panoramic radiography could. CBCT additionally showed the following pathologies: granulomas smaller than4 mm diameter – 85% (n = 23), 83% (n = 23) of said granulomas were found on maxilla, radicular cysts of maxilla – 11% (n = 3), incisive canal cyst – 4% (n = 1). Additionally panoramic tomography analysis misdiagnosed 5 granulomas (80% (n = 4) on mandibular premolar and molar areas) that were not found during CBCT analysis.Conclusion. The low effective dose and high informativity of CBCT enables the method to be used instead of intraoral radiography, panoramic tomography and MSCT as a screening procedure in diagnostics of dento-facial system pathologies, including cystic masses of the jaw. 

scholarly journals Comparison of CGRP distributions in the maxillary sinus and trigeminal ganglion between elderly dentulous and edentulous humans

2021 ◽  
Vol 65 (2) ◽  
Author(s):  
Hiroyuki Matsuda ◽  
Iwao Sato ◽  
Rieko Asaumi ◽  
Takuya Omotehara ◽  
Shinichi Kawata ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Trigeminal Ganglion ◽  
Alveolar Bone ◽  
Cone Beam Ct ◽  
Basal Layer ◽  
Calcitonin Gene ◽  
Cbct Analysis ◽  
The Relationship ◽  
Implant Treatment ◽  
Mucosal Gland

Thickening of the Schneiderian membrane (SM, mucosa of the maxillary sinus) appears in the paranasal sinus. Information on SM thickening is available for patients receiving sinus lift treatments, which is a risk factor for SM excretory dysfunction. However, more information is needed on the structure of the SM and the relationship between the maxilla sinus and palatine with the alveolar bone and the SM for dental implant treatment in the human maxilla. One hundred twenty-six sides of the maxilla from 71 cadavers were subjected to cone-beam CT (CBCT) analysis and macroscopic and immunohistochemical observations in this study. A thickened SM was mainly observed in the middle region of the basal layer of the maxillary sinus (MS). Strong calcitonin gene-related peptide (CGRP)-positive reactions were observed in the alveolar bone, oral mucosa, mucosa of the maxillary sinus, and trigeminal ganglion (TG) cells in dentulous samples compared with edentulous samples. TG cells play important roles in delivering CGRP through axons to the mucosal gland and in regulating the maxilla-related thickening of the SM. These data could help determine CGRP functions in the mucosal gland and bone formation between dentulous and edentulous samples and indicate that CGRP may pass from the TG to the maxillary sinus glands.

scholarly journals Prevalence of complex root canal morphology in the mandibular first and second premolars in Thai population: CBCT analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Paramee Thanaruengrong ◽  
Sirinya Kulvitit ◽  
Mettachit Navachinda ◽  
Pornkawee Charoenlarp
Keyword(s):  
Root Canal ◽  
Horizontal Tube ◽  
Type I ◽  
Complex Root ◽  
Thai Population ◽  
Single Root ◽  
Chi Squared ◽  
Root Canal Morphology ◽  
Cbct Analysis ◽  
Canal Morphology

Abstract Background Mandibular premolars demonstrate high variability in root canal morphology, especially mandibular first premolars. The purposes of this study were to determine the prevalence of root canal configurations of mandibular premolars according to Vertucci classification in a Thai population. Methods Total of 1159 CBCT images of Thai patients who received radiographic imaging at the Department of Radiology, Faculty of Dentistry, Chulalongkorn University in 2017–2018 was evaluated. The data were reported using descriptive statistics and the relationship between the prevalence of the root canal complexities and sex was analyzed using the chi-squared test. Results The most common root canal configuration was Vertucci type I, with a 63.1% and 98% prevalence in the mandibular first and second premolars, respectively. More than 98% of mandibular premolars had a single root. The prevalence of a bifurcation was 28.5% and 1.5% in the mandibular first and second premolars, respectively. The prevalence of a trifurcation was 3.2% in the mandibular first premolar. A C-shaped root canal was observed at 23.7% and 0.7% in the mandibular first and second premolars, respectively. The level of branching was mostly found at the middle 1/3 of the root. Bilateral appearance of the same root canal configuration was identified in 80.3% and 95.9% in the mandibular first and second premolars, respectively. There was no relationship between sex and the prevalence of a bifurcation, trifurcation, or C-shaped root canal. Conclusion Mandibular first premolars have more root canal complexities than mandibular second premolars. Horizontal tube shift x-ray technique, CBCT, dental operating microscope, and knowledge of root canal configurations have an important role in root canal identification in mandibular premolar with suspected complex root canal morphology.

CBCT analysis of haller cells: relationship with accessory maxillary ostium and maxillary sinus pathologies

2020 ◽  
Author(s):  
İlknur Özcan ◽  
Sevde Göksel ◽  
Hülya Çakır-Karabaş ◽  
Gürkan Ünsal
Keyword(s):  
Maxillary Sinus ◽  
Cbct Analysis

scholarly journals Retrospective study of root canal configurations of maxillary third molars in Central India population using cone beam computed tomography Part- I

2016 ◽  
Vol 10 (01) ◽  
pp. 097-102 ◽  
Author(s):  
Manjusha Rawtiya ◽  
Pavithra Somasundaram ◽  
Shefali Wadhwani ◽  
Swapna Munuga ◽  
Manish Agarwal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Central India ◽  
Cone Beam ◽  
Type I ◽  
Third Molars ◽  
Type Iv ◽  
Maxillary Molars ◽  
High Prevalence ◽  
Cbct Analysis

ABSTRACT Objective: The aim of this study was to investigate the root and canal morphology of maxillary third molars in Central India population using cone-beam computed tomography (CBCT) analysis. Materials and Methods: CBCT images of 116 maxillary third molars were observed, and data regarding the number of roots, the number of canals, and Vertucci's Classification in each root was statistically evaluated. Results: Majority of Maxillary third molars had three roots (55.2%) and three canals (37.9%). Most MB root (43.8%), DB root (87.5%), and palatal root (100%) of maxillary third molars had Vertucci Type I. Mesiobuccal root of three-rooted maxillary third molars had Vertucci Type I (43.8%) and Type IV (40.6%) configuration. Overall prevalence of C-shaped canals in maxillary third molars was 3.4%. Conclusion: There was a high prevalence of three-rooted maxillary molars with three canals.

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