scholarly journals Morphological Features of the Structure of the Root Canals of Premolars and Molars of the Upper Jaw on the Basis of Cone-Beam Computed Tomography

2021 ◽  
Vol 6 (5) ◽  
pp. 322-328
Author(s):  
E. V. Shott ◽  
◽  
I. O. Pohodenko-Chudakova ◽  

The key issue for dentists of all specialties is the fight against foci of chronic odontogenic infection. Much attention is paid to the introduction of operations that preserve teeth performed at an outpatient surgical appointment, but specialists rarely use them and often remove teeth. The purpose of the study is to determine the morphological features of the structure of the root canals of the premolars and molars of the upper jaw on the basis of cone-beam computed tomography of the jaws, to assess the quality of previously performed endodontic treatment and the frequency of destructive processes in the long-term follow-up. Materials and methods. Anatomical features of the structure of the premolars and molars of the upper jaw were retrospectively studied on the basis of cone-beam computed tomography data in 97 patients aged 26-71 years. 97 teeth (premolars and molars) of the upper jaw were examined in this number of patients. Depending on the belonging to the jaw segments, all the teeth of patients whose anatomical features of the root canals were analyzed, were divided into 4 groups: the first premolars – n=6; the second premolars – n=15; the first molars – n=54; the second molars – n=22. Results and discussion. The study of the morphology of the root canals of the first and second premolars of the upper jaw did not reveal statistically significant differences in the angle of inclination of the root canals, the number of roots and root canals. The analysis of the morphology of the root canals of the first and second molars of the upper jaw also found no significant differences in the angle of inclination of the root canals. At the same time, the share of unsatisfactory endodontic treatment in the analyzed groups of teeth was 82.5%. In addition, destructive bone processes in the periapical region were detected in all molars and premolars of the upper jaw, regardless of the quality of endodontic treatment. Conclusion. Each of the above results as well as all of them together, convincingly demonstrate: 1) insufficient effectiveness of the use of endodontic treatment alone in order to sanitize the foci of chronic odontogenic infection located in the apices of the roots of the molars and premolars of the upper jaw which is largely justified by the features of the anatomical structure of the latter; 2) the need to develop a system of differentiated use of surgical methods of treatment for the rehabilitation of foci of chronic odontogenic infection of the specified localization, taking into account the variant anatomy of the root canals of the premolars and molars of the upper jaw

2019 ◽  
Vol 100 (2) ◽  
pp. 89-94
Author(s):  
V. V. Petrovskaya ◽  
N. N. Potrakhov ◽  
A. Yu. Vasil’ev

Objective. To determine peculiarities when using microfocus cone beam computed tomography (micro-CBCT) and cone beam computed tomography (CBCT) to analyze the anatomy of the teeth and the quality of endodontic treatment.Material and methods. Micro-CBCT and CBCT were experimentally used to examine 8 extracted tooth preparations before and after endodontic root canal treatment using different types of filling material.Results. Micro-CBCT showed the high informative value of determining the type, nature, and quality of canal filling and diagnosed many cracks and accessory canals. According to the micro-CBCT findings, the tooth apexes were not filled; the lumen of the canals was unevenly and loosely filled with endodontic material; the passages of guttapercha points were well traced; the nature of the endodontic material was differentiated.Conclusion. Micro-CBCT opens up new opportunities in dentistry with tooth volume visualization, allowing the minor and low-contrast details of the anatomical structure of the teeth to be seen on the X-ray image.


2019 ◽  
Vol 1 (1) ◽  
pp. 16-18 ◽  
Author(s):  
Norafida Bahari ◽  
Nik Azuan Nik Ismail ◽  
Jegan Thanabalan ◽  
Ahmad Sobri Muda

In this article, we evaluate the effectiveness of Cone Beam Computed Tomography, through a case study, in assessing the complication of intracranial bleeding during an endovascular treatment of brain arteriovenous malformation when compared to Multislice-Detector Computed Tomography performed immediately after the procedure. The image quality of Cone Beam Computed Tomography has enough diagnostic value in differentiating between haemorrhage, embolic materials and the arteriovenous malformation nidus to facilitate physicians to decide for further management of the patient.


Author(s):  
Norafida Bahari ◽  
NikAzuan Nik Ismail ◽  
Jegan Thanabalan ◽  
Ahmad Sobri Muda

In this article, we evaluate the effectiveness of Cone Beam Computed Tomography, through a case study, in assessing the complication of intracranial bleeding during an endovascular treatment of brain arteriovenous malformation when compared to Multislice-Detector Computed Tomography performed immediately after the procedure. The image quality of Cone Beam Computed Tomography has enough diagnostic value in differentiating between haemorrhage, embolic materials and the arteriovenous malformation nidus to facilitate physicians to decide for further management of the patient.


2017 ◽  
Vol 42 (1) ◽  
pp. 60 ◽  
Author(s):  
Evaldo Rodrigues ◽  
Antônio Henrique Braitt ◽  
Bruno Ferraz Galvão ◽  
Emmanuel João Nogueira Leal da Silva

2012 ◽  
Vol 45 (8) ◽  
pp. 724-729 ◽  
Author(s):  
Y.-H. Liang ◽  
M. Yuan ◽  
G. Li ◽  
H. Shemesh ◽  
P. R. Wesselink ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Leila Atash biz Yeganeh ◽  
Mamak Adel ◽  
Reza Vahedi ◽  
Maryam Tofangchiha

Thorough knowledge of root canal morphology is essential for the endodontic therapy. There are rare variations in canal number and configuration in maxillary molars, which could affect treatment outcome. This paper presents the endodontic management of a maxillary first molar with two palatal canals in one root (Vertucci type IV) and a single buccal canal. In this paper cone-beam computed tomography was made to asses this morphology. This paper is intended to reinforce clinician’s awareness of the rare morphology of root canals.


2019 ◽  
Vol 22 (1) ◽  
pp. Process
Author(s):  
Rajamohan Rajakeerthi ◽  
Malli Suresh Babu Nivedhitha

Objective: The complex root canal anatomy is inherently colonised by microbial flora. Endodontic treatment success is always related to adequate disinfection of the root canal space, which ultimately affects the treatment outcome. A thorough understanding of the external and internal root canal anatomy by using adequately imaging modalities is essential before planning any treatment. The aim of this study was to investigate the number and morphology of the root canals of maxillary and mandibular premolars in Chennai population. Material and Methods: Full-size cone-beam computed tomographic images were randomly collected from 100 patients, resulting in a total of 200 first and 200 second maxillary premolars as well as 200 first and 200 second mandibular premolars. All the eight premolars were analysed in single patients, who underwent cone-beam computed tomography scanning during pre-operative assessment (before implant surgery, orthodontic treatment, diagnosis of dental-alveolar trauma or difficult root canal treatment). Total number of roots and root canals, frequency and correlations between men and women were recorded and statistically analysed by using chi-square tests. The root canal configurations were rated according to the Vertucci’s classification. Results: In the maxillary first premolar group (n = 200), 36.3% had 1 root, 56.7% had 2 roots and 7.0% had 3 roots, with most exhibiting a type IV canal configuration. In the maxillary second premolar group (n = 200), 60% had 1 root, 29.8% had 2 roots and 10.2% had 3 roots, with the majority of single-rooted second premolars exhibiting a type I canal configuration. In the mandibular first premolar group (n = 200), 80.5% had 1 root, 9.8% had 2 roots and 5% had 3 roots. In the mandibular second premolar group (n=200), 90.1% had 1 root, 6.4% had 2 roots and 3.5 % had 3 roots, with most exhibiting a type I canal configuration. No statistical correlation was found between number of roots, gender and tooth position. Conclusion: This cone-beam computed tomographic study confirmed previous anatomical and morphological investigations. Therefore, the possibility of additional root canals should be considered when treating premolars. Keywords: Cone-beam computed tomography; Mandibular; Maxillary; Premolar; Root canal; Morphology.


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