Cone beam computed tomography: Adding three dimensions to endodontics

Author(s):  
Swarooparani Patil ◽  
B. S. Keshava Prasad ◽  
K. Shashikala
2017 ◽  
Vol 87 (5) ◽  
pp. 733-738 ◽  
Author(s):  
Min-Hee Oh ◽  
Hyeon-Shik Hwang ◽  
Kyung-Min Lee ◽  
Jin-Hyoung Cho

ABSTRACT Objective: To compare the condylar displacement following sagittal split ramus osteotomy (SSRO) in asymmetric setback patients between the conventional approach and surgery-first approach and to determine whether the condylar displacement is affected by asymmetric setback in SSRO patients. Materials and Methods: This was a retrospective study. The subjects consisted of patients with facial asymmetry who underwent SSRO and had cone-beam computed tomography taken before and 1 month after surgery. They were allocated into the conventional (n = 18) and surgery-first (SF) groups (n = 20). Descriptive, independent t-tests and Pearson correlation analysis were computed. Results: The amount of condylar displacement in x-, y-, and z-directions and Euclidean distance showed no statistically significant differences between the conventional and SF groups. Comparing the postoperative condylar position with the preoperative position, the condylar displacement occurred in posterior (P < .05) and downward (P < .05) directions in both groups except on the deviated side in the conventional group. The condylar displacement occurred in a posterior (P < .05) direction on the deviated side of the conventional group. However, the condylar displacement in three dimensions showed no statistically significant differences between the two groups. In the correlation analysis, the condylar displacement in both the deviated and contralateral sides showed no significant correlation with asymmetric setback in either group. Conclusion: The condylar displacement in three dimensions and the distance of condylar displacement in SSRO patients with facial asymmetry showed no significant difference between conventional and SF groups. Condylar displacement was not associated with asymmetric setback.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Aslıhan Akbulut ◽  
Beyza Ballı Akgöl ◽  
Kaan Orhan ◽  
Merve Bayram

Objectives: To define the prevalence of dehiscence and fenestration and classify them in terms of the localization of fenestrations in a random sampled group of children and adolescent patients using cone-beam computed tomography (CBCT).Methods:  CBCT performed at the Department of Oral and Maxillofacial Radiology of patients referred by the paediatric dentistry clinic were included in this retrospective study. Image evaluations were performed by dentomaxillofacial radiologist (AA, asst. prof.), and these images were examined in three dimensions of the axial, coronal, and sagittal planes. Intraexaminer agreement for the evaluations were found acceptable. The presence/absence of dehiscence and/or fenestration, fenestration’s classification type, and localization of defects were recorded. Moreover, the presence/absence of periapical lesion in related root with dehiscence and fenestration was noted. For statistical analysis, The Chi-Square test, Fisher Freeman Halton Test, and Yates' Continuity of Correction were used.Results: 3061 roots in 1801 teeth of 120 cases were analyzed. The mean age was 9.97±2.22 years. Dehiscence was detected in 261(8.5%) roots of 161(8.9%) teeth, and fenestration was detected 63(2%) roots of 36(2%) teeth. The most common fenestration type was Type I, followed by Type II and IV. Dehiscence was observed more frequently in primary teeth than permanent teeth, and the difference was statistically significant (p:0.000). Dehiscence and fenestration incidence in maxillary teeth was significantly higher than in the mandibular teeth (pdehiscence:0.000, pfenestration:0.004). Apical lesions were observed more in primary teeth than permanent teeth for both defects.Conclusions: This study concludes that alveolar dehiscence and fenestrations are more common in primary teeth than permanent teeth. Moreover, these defects were detected more for the teeth in the maxilla. Concerning endodontic and orthodontic therapies in maxilla, use of CBCT is useful in determining the region's anatomical structure accurately in suspected cases of child and adolescent patients.


2021 ◽  
Vol 5 (1) ◽  
pp. 17
Author(s):  
Anak Agung Gde Dananjaya Agung ◽  
Ni Ketut Ayu Lestarini

Objectives: To analyze idiopathic osteosclerosis radiographs associated with impacted third molars (M3) on cone beam computed tomography (CBCT). Case Report: A 36-year-old woman came to the Dentology Clinic complaining that the right mandibular third molar area often felt sore. The patient was referred for CBCT examination and incidentally, a radiopaque image with clear boundaries, irregular shape was found on the periapical impacted third molar without caries in the tooth crown. The treatment plan that will be carried out on the tooth is extraction. Conclusion: Idiopathic osteosclerosis lesions are lesions that occur in vital teeth that have the characteristics of a well-defined radiopaque appearance and are asymptomatic. Characteristics of idiopathic osteosclerosis lesions can be visualized by CBCT well. CBCT has the advantage of being able to display a detailed picture of the lesion in three dimensions (3D) with a fairly good image resolution.


2020 ◽  
Vol 23 (3) ◽  
Author(s):  
Shishir Ram Shetty ◽  
Sesha Reddy ◽  
Hossam Abdelatty Abdelmagyd ◽  
Hesham Marei ◽  
Raghavendra Shetty ◽  
...  

The advent of CBCT has contributed significantly to dental imaging. In the field of periodontics, CBCT provides a multiplanar view to assess the alveolar bone in three dimensions. This helps the dentist to make measurements at any location that could significantly improve periodontal diagnosis. Objective- The aim of this systematic review is to evaluate the accuracy of using CBCT in the assessment of alveolar bone level and furcation involvement in periodontal diseases. Materials and Methods- PubMed and Google Scholar databases were searched for literature related to the application of CBCT in periodontal diseases.  Keywords used for the search were CBCT, furcation involvement, measurement and their synonyms. Results-Fifteen full-text English language research papers were eligible for the systematic review using the PRISMA guidelines. Conclusion- From the results of the systematic review it can be conclude that cone-beam computed tomography imaging technique offers significantly reliable images of the furcation involvement and height of the alveolar bone.KeywordsCone Beam Computed tomography, furcation defects, alveolar bone loss 


2016 ◽  
Vol 7 (1) ◽  
pp. 47-50
Author(s):  
Abhay Taranath Kamath ◽  
Swathi Pai ◽  
Manish Bhagania ◽  
M Vidya Saraswathi

ABSTRACT Surgical enucleation of a radicular cyst is a common treatment in endodontics but the pretreatment planning and assessment of the post-treatment healing in the cystic cavity is of utmost importance. The advantage of cone beam computed tomography (CBCT) in endodontics is that it demonstrates anatomic features in three dimensions that is not possible with intraoral periapical (IOPA) and panoramic radiographic images. In this case report, a CBCT was done to evaluate the size and extent of the radicular cyst in the maxillary anterior region and was enucleated. Apicoectomy was done and the hollow cavity was filled with platelet rich fibrin. A postoperative CBCT was done 2 years later to assess the healing. Specific situations, both pre- and postoperatively, where the understanding of spatial relationships afforded by CBCT facilitates diagnosis, influences treatment and assess healing. How to cite this article Pai S, Kamath AT, Bhagania M, Shenoy N, Saraswathi MV. Assessment of Healing of a Large Radicular Cyst using Cone Beam Computed Tomography: Two Years Follow-up. World J Dent 2016;7(1):47-50.


2015 ◽  
Vol 14 (1) ◽  
pp. 50
Author(s):  
Farina Pramanik ◽  
Ria N. Firman

Radiographic examination is one of the examinations required in determining the treatment plan and evaluating thesuccess of dental implant placement. Cone beamcomputed tomography3D(CBCT 3D)is a tool that produce radiographicimaging in three dimensions that can meet the information needed by dentists/specialists in dental implant placement.This report discusses the role of interpretating the CBCT 3D bone area, indication of dental implant with give a sight3D, measure the distance and position of the implant and to assess the quality of the bone at dental implant placement.Interpretation of CBCT 3D case is the size of the dental implant alveolar bone morphometric teeth region 46 and 37qualified radiographically for dental implants. The conclusion of this paper is a CBCT 3D can be a determinant of thesuccess of dental implant placement as capable of being able to analyze a complete, clear and more accurate measurementthrough a 3D picture, the analysis of the size/3D morphometric, density analysis, and histogram/ trabecular analysis.


2019 ◽  
Vol 55 (04) ◽  
pp. 202-209
Author(s):  
Rajiv Balachandran ◽  
Om Prakash Kharbanda ◽  
Karthik Sennimalai ◽  
Bala Chakravarthy Neelapu

Abstract Objective This study aimed to evaluate the reproducibility of nine reference planes used in orientation of as-received cone-beam computed tomography (CBCT) images in all three dimensions. Materials and Methods The study was conducted on CBCT images of 15 adult subjects (mean age 21.2 ± 5.8 years). The anonymized CBCT images were oriented using five different methods created from nine reference planes by two experienced orthodontists. For each subject, pitch, yaw, and roll changes with five orientation methods were recorded twice by each observer. Statistical Analysis The inter- and intraobserver agreement was tested using intraclass correlation (ICC) and Bland–Altman plot. The intra- and interobserver error was analyzed using paired t-test. Analysis of variance and paired t-test were used to analyze the differences among the various pitch, roll, and yaw orientation planes. Results Inter- and intraobserver agreement (ICC, 0.9) was excellent for all the nine reference planes. The interobserver reliability showed statistically significant differences for four planes namely Frankfort horizontal plane constructed on right side (p = 0.014) and left side (p = 0.000), transorbital plane (p = 0.001), and midsagittal plane on top view (p = 0.036); however, the mean differences were clinically insignificant. Conclusion The landmark-based nine reference planes used in this study to orient CBCT images showed good reproducibility. Therefore, these reference planes can be used to orient CBCT images and can be incorporated into automated software.


2013 ◽  
Vol 07 (01) ◽  
pp. 035-040 ◽  
Author(s):  
Atakan Kalender ◽  
Umut Aksoy ◽  
Fatma Basmaci ◽  
Kaan Orhan ◽  
Orhan Ayse Isil

ABSTRACTObjective: The aim of this study was to evaluate the anatomical distance between apices of the palatine root of the maxillary first molars to the buccal bone plate to identify the vestibular surgical pathway in a Turkish adult population using cone-beam computed tomography (CBCT) images.Methods: CBCT scans of 107 (48 male and 59 female) patients were retrospectively analyzed. The overall mean age was 38.6 years. The distance between the vestibular cortex and vestibular side of the palatine root was measured for 192 maxillary first molars both on axial images parallel to the palatal plane and on reformatted cross-sectional images. A Pearson’s chi square test and Mann- Whitney U-test were performed to evaluate differences among age, localization, and measurements. Differences were considered statistically significant at P<.05.Results: The mean distance between the buccal cortex and the buccal side of the palatine root of the superior first molar in both male and female patients was 10.13 and 9.70 mm, respectively. The incidence of interposition of the lateral recess of the maxillary sinus between the roots was 42.2% and 49% in men and women, respectively. Statistically significant sex-related differences were found in the vestibular surgical pathway (P<.05).Conclusions: For precise planning of endodontic surgery, it is crucial to determine the exact dimensions and location of the periapical lesion, as well as its relationship with the roots and other neighboring anatomical structures. CBCT can be a powerful tool for the evaluation of surgical cases in three dimensions with less ionizing radiation and better avoidance of complications during surgery. (Eur J Dent 2013;7:35-40)


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.


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