scholarly journals Imaging Techniques in Endodontics: An Overview

2012 ◽  
Vol 2 ◽  
pp. 13 ◽  
Author(s):  
B. S. Deepak ◽  
T. S. Subash ◽  
V. J. Narmatha ◽  
T. Anamika ◽  
T. K. Snehil ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Techniques ◽  
Cone Beam ◽  
Advantages And Disadvantages

This review provides an overview of the relevance of imaging techniques such as, computed tomography, cone beam computed tomography, and ultrasound, to endodontic practice. Many limitations of the conventional radiographic techniques have been overcome by the newer methods. Advantages and disadvantages of various imaging techniques in endodontic practice are also discussed.

scholarly journals Cone beam computed tomography for the diagnosis of external root resorption associated with orthodontic treatment: A review.

2020 ◽  
Vol 8 (3) ◽  
pp. e037
Author(s):  
Mariela Burgos-Urey ◽  
Jhoana Mercedes Llaguno-Rubio
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Imaging Techniques ◽  
Cone Beam ◽  
Advantages And Disadvantages ◽  
External Root Resorption ◽  
Management Protocol

External root resorption (ERR) is a highly prevalent, multifactorial problem frequently associated with orthodontic treatment. Treatment is complex due to the lack of solid knowledge regarding predisposing factors, systematic management for diagnosis and follow-up protocols or thefundamental theoretical bases of adequate imaging tools for each situation. This review describes the indications of the use of cone beam computed tomography (CBCT) and the factors related to its development and the characteristics of the techniques used in the diagnosisand monitoring of ERR in orthodontics. We compared the advantages and disadvantages of CBCT based on the risk/benefits. Methods: We have reviewed and summarized the information and the risk factors available on ERR in orthodontics and the use of CBCT in the diagnosis and follow-up of ERR with the aim of developing a management protocol. Likewise, CBCT is compared with other imaging techniques frequently used in ERR. The articles reviewed in this study coincide in terms of the advantages of precision of CBCT in the detection and linear and volumetric measurement of ERR associated with orthodontics over two-dimensional techniques. However, CBCT cannot completely replace other imaging techniques since its effectiveness is not significantly greater in cases with moderate ERR compromise. The use of CBCT should be optimized following specific criteria for its application. 

scholarly journals A Rare Presentation of Bilateral Maxillary Dens Invaginatus Diagnosed Using Cone Beam Computed Tomography

2013 ◽  
Vol 3 ◽  
pp. 8 ◽  
Author(s):  
Sainath Dinapadu ◽  
Swathi Aravelli ◽  
Srikanth Pasari ◽  
Narender Reddy Marukala
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Techniques ◽  
Cone Beam ◽  
Advanced Imaging ◽  
Rare Presentation ◽  
Present Case Report ◽  
Developmental Variation ◽  
Complex Morphology ◽  
Dens Invaginatus

Dens invaginatus is a developmental variation in the formation of a tooth that causes changes in the internal anatomy of the tooth. The presence of double dens invaginatus is extremely rare. Understanding the type, extension, and complex morphology of dens invaginatus is essential. Diagnosis of this condition using conventional radiographic techniques is not easy. Advanced imaging techniques, such as cone beam computed tomography (CBCT) are very helpful in diagnosis of these complex anatomic variations. In the present case report, we demonstrate the use of CBCT in the evaluation and treatment planning of bilateral maxillary dens invaginatus, of which one presented as a case of double dens.

scholarly journals Double Retromolar Canal: a Case Report

2019 ◽  
Vol 21 (5) ◽  
pp. 474-476
Author(s):  
Ana Paula Tulio Manfron ◽  
Alessandra Soares Ditzel ◽  
Flávia Gasparini Kiatake Fontão ◽  
Luciana Rei Azevedo-Alanis
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Techniques ◽  
Anatomic Variation ◽  
Anatomical Variation ◽  
Third Molar ◽  
Cone Beam ◽  
Oral Rehabilitation ◽  
Computed Tomography Images ◽  
Retromolar Canal

AbstractThe retromolar canal is an anatomical variation of the mandibular canal. Its neurovascular bundle may extend to areas of the temporalis tendon, and areas of buccinator muscle insertion in the alveolar process at lower third molar region, beside the retromolar fossa. The observation of the retromolar canal in conventional radiographs is limited by the presence of increased bone condensation in the region due to overlapping anatomical structures. The use of three-dimensional imaging techniques, such as cone beam computed tomography can contribute significantly for the treatment planning.Some complications may occur in surgical procedures involving the retromolar area when the retromolar canals are present, such as hemorrhage, failure in anesthesia and injuries to nerve branches. This study reported an unusual case of a double retromolar canal on the left side of the mandible, that led  to the change of the treatment planning in a 54-year-old male patient. Furthermore, the clinical and surgical consequences of these findings in oral rehabilitation were discussed. The cone beam computed tomography was  an important diagnostic tool in the observation of the presence and the exact location of retromolar canal. Retromolar canals may be detected on a panoramic radiograph. However, more precise information about the anatomical variation can be shown on cross sectional cone beam computed tomography images. Keywords: Anatomic Variation. Mandible. Cone-Beam Computed Tomography. ResumoO canal retromolar é uma variação anatômica do canal da mandíbula. Seu feixe vásculo-nervoso pode se estender para áreas do tendão do músculo temporal, áreas de inserção do músculo bucinador e no processo alveolar na região do terceiro molar inferior, além da fossa retromolar. A observação do canal retromolar em radiografias convencionais é limitada pela presença de condensação óssea com sobreposição de estruturas anatômicas. Devido a esse fato o uso de técnicas de imagem tridimensionais, como a tomografia computadorizada de feixe cônico, contribuem significativamente para o planejamento do tratamento. Algumas complicações podem ocorrer em procedimentos cirúrgicos envolvendo a região retromolar quando o canal retromolar está presente, como hemorragia, falha na anestesia e lesões aos ramos nervosos. Este estudo relatou um caso incomum de canal retromolar duplo, do lado esquerdo da mandíbula, causando alterações no planejamento clínico do tratamento de um paciente do sexo masculino de 54 anos de idade. Além disso, as consequências clínicas e cirúrgicas desses achados na reabilitação bucal foram discutidas. Atomografia computadorizada de feixe cônico apresentou-se como importante ferramenta diagnóstica na observação da presença e localização exata do canal retromolar. Canais retromolares podem ser detectados em uma radiografia panorâmica. No entanto, informações mais precisas sobre esta variação anatômica podem ser mostradas em imagens de tomografia computadorizada de feixe cônico. Palavras-chave: Variação Anatômica. Mandíbula. Tomografia Computadorizada de Feixe Cônico.AbstractThe retromolar canal is an anatomical variation of the mandibular canal. Its neurovascular bundle may extend to areas of the temporalis tendon, and areas of buccinator muscle insertion in the alveolar process at lower third molar region, beside the retromolar fossa. The observation of the retromolar canal in conventional radiographs is limited by the presence of increased bone condensation in the region due to overlapping anatomical structures. The use of three-dimensional imaging techniques, such as cone beam computed tomography can contribute significantly for the treatment planning.Some complications may occur in surgical procedures involving the retromolar area when the retromolar canals are present, such as hemorrhage, failure in anesthesia and injuries to nerve branches. This study reported an unusual case of a double retromolar canal on the left side of the mandible, that led  to the change of the treatment planning in a 54-year-old male patient. Furthermore, the clinical and surgical consequences of these findings in oral rehabilitation were discussed. The cone beam computed tomography was  an important diagnostic tool in the observation of the presence and the exact location of retromolar canal. Retromolar canals may be detected on a panoramic radiograph. However, more precise information about the anatomical variation can be shown on cross sectional cone beam computed tomography images. Keywords: Anatomic Variation. Mandible. Cone-Beam Computed Tomography. ResumoO canal retromolar é uma variação anatômica do canal da mandíbula. Seu feixe vásculo-nervoso pode se estender para áreas do tendão do músculo temporal, áreas de inserção do músculo bucinador e no processo alveolar na região do terceiro molar inferior, além da fossa retromolar. A observação do canal retromolar em radiografias convencionais é limitada pela presença de condensação óssea com sobreposição de estruturas anatômicas. Devido a esse fato o uso de técnicas de imagem tridimensionais, como a tomografia computadorizada de feixe cônico, contribuem significativamente para o planejamento do tratamento. Algumas complicações podem ocorrer em procedimentos cirúrgicos envolvendo a região retromolar quando o canal retromolar está presente, como hemorragia, falha na anestesia e lesões aos ramos nervosos. Este estudo relatou um caso incomum de canal retromolar duplo, do lado esquerdo da mandíbula, causando alterações no planejamento clínico do tratamento de um paciente do sexo masculino de 54 anos de idade. Além disso, as consequências clínicas e cirúrgicas desses achados na reabilitação bucal foram discutidas. Atomografia computadorizada de feixe cônico apresentou-se como importante ferramenta diagnóstica na observação da presença e localização exata do canal retromolar. Canais retromolares podem ser detectados em uma radiografia panorâmica. No entanto, informações mais precisas sobre esta variação anatômica podem ser mostradas em imagens de tomografia computadorizada de feixe cônico. Palavras-chave: Variação Anatômica. Mandíbula. Tomografia Computadorizada de Feixe Cônico.

scholarly journals Cone Beam Computed Tomography-guided Management of Cervical Perforative Internal Resorption in Permanent Mandibular First Molar

2016 ◽  
Vol 6 (3) ◽  
pp. 73-77
Author(s):  
Rasika A Naik ◽  
Manoj M Ramugade ◽  
Nilofar B Attar ◽  
Kishor D Sapkale
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Techniques ◽  
Glass Ionomer Cement ◽  
Cone Beam ◽  
Diagnostic Tools ◽  
Resin Modified Glass Ionomer ◽  
Mandibular First Molar ◽  
Ionomer Cement

ABSTRACT Internal resorption in the permanent dentition is a rare pathologic condition. Clinical differentiation of perforative cervical internal resorption from cervical external resorption is considered to be a challenging task. Advanced imaging techniques, such as cone beam computed tomography (CBCT) have proven vital diagnostic tools in the detection and management of these lesions. Management of a perforated internal resorption needs comprehensive endorestorative and periodontal approach. This article describes 1 year follow-up of the successfully managed perforative cervical internal resorption in permanent mandibular first molar. The affected tooth was endodontically treated, and the resorptive defect was restored with resin-modified glass ionomer cement (RMGIC) through periodontal flap surgery. How to cite this article Naik RA, Ramugade MM, Attar NB, Sapkale KD. Cone Beam Computed Tomography-guided Management of Cervical Perforative Internal Resorption in Permanent Mandibular First Molar. Int J Prosthodont Restor Dent 2016;6(3):73-77.

scholarly journals Accuracy of laser-scanned models compared to plaster models and cone-beam computed tomography

2013 ◽  
Vol 84 (3) ◽  
pp. 443-450 ◽  
Author(s):  
Jooseong Kim ◽  
Giseon Heo ◽  
Manuel O. Lagravère
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Cone Beam ◽  
Advantages And Disadvantages ◽  
Accuracy Of Measurements ◽  
Highly Correlated ◽  
Plaster Models

ABSTRACT Objective: To compare the accuracy of measurements obtained from the three-dimensional (3D) laser scans to those taken from the cone-beam computed tomography (CBCT) scans and those obtained from plaster models. Materials and Methods: Eighteen different measurements, encompassing mesiodistal width of teeth and both maxillary and mandibular arch length and width, were selected using various landmarks. CBCT scans and plaster models were prepared from 60 patients. Plaster models were scanned using the Ortho Insight 3D laser scanner, and the selected landmarks were measured using its software. CBCT scans were imported and analyzed using the Avizo software, and the 26 landmarks corresponding to the selected measurements were located and recorded. The plaster models were also measured using a digital caliper. Descriptive statistics and intraclass correlation coefficient (ICC) were used to analyze the data. Results: The ICC result showed that the values obtained by the three different methods were highly correlated in all measurements, all having correlations >0.808. When checking the differences between values and methods, the largest mean difference found was 0.59 mm ± 0.38 mm. Conclusions: In conclusion, plaster models, CBCT models, and laser-scanned models are three different diagnostic records, each with its own advantages and disadvantages. The present results showed that the laser-scanned models are highly accurate to plaster models and CBCT scans. This gives general clinicians an alternative to take into consideration the advantages of laser-scanned models over plaster models and CBCT reconstructions.

scholarly journals Importance of cone beam computed tomography in the diagnosis of root perforation: a case report

2021 ◽  
Vol 10 (2) ◽  
pp. e25010211320
Author(s):  
Sandy Rabelo Lima ◽  
Denise Hélen Imaculada Pereira de Oliveira ◽  
Francisca Damares da Silva Mesquita ◽  
Eduardo José Guerra Seabra ◽  
Patrícia Bittencourt Dutra dos Santos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Techniques ◽  
Correct Diagnosis ◽  
Cone Beam ◽  
Histopathological Analysis ◽  
State University ◽  
Oral Rehabilitation ◽  
Dental Imaging ◽  
Periodontal Tissues

Endodontic perforations are defined as a iatrogenic mechanical communication between the root canal and supporting periodontal tissues. Dental imaging techniques are essential for satisfactory detection of these conditions. The purpose of this study was to describe the clinical case of a patient diagnosed with endo-periodontal cystic lesion by endodontic perforation by cone beam computed tomography (CBCT). A 67-year-old female patient who required oral rehabilitation treatment with an implant-supported denture in the posterior mandible was seen at the Dental Clinic of the State University of Rio Grande do Norte (UERN). Based on the data collected during clinical examination, complementary tests were requested for assessment of his overall dental condition. Periapical radiography revealed the presence of a lesion in the apex of tooth 22, which was associated with an endodontic lesion. CBCT showed a lateral lesion caused by root perforation suffered during prior endodontic treatment. After histopathological analysis, the diagnosis was a radicular cyst. This study highlights the importance of CBCT imaging for establishment of the correct diagnosis, treatment planning, and prevention of complications.

Cone Beam CT equipment compared: PedCat, Planmed CT and CARESTREAM OnSight 3D Extremity System

2020 ◽  
Author(s):  
Sandu Elena Cerasela ◽  
Caravaggi Paolo ◽  
Durante Stefano
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Cone Beam Computed Tomography ◽  
Low Dose ◽  
3D Visualization ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Foot And Ankle ◽  
Advantages And Disadvantages ◽  
Volumetric Images

The purpose of this article is to compare three Cone Beam CT equipment used for 3D visualization of the foot and ankle, highlighting the advantages and disadvantages of each machine. Cone Beam Computed Tomography provides high resolution (3D) volumetric images with a particularly low dose.

scholarly journals Evaluation of Midpalatal Suture Ossification Using Cone-Beam Computed Tomography: A Digital Radiographic Study

2020 ◽  
Vol 63 (4) ◽  
pp. 188-193
Author(s):  
Girish Katti ◽  
Syed Shahbaz ◽  
Chandrika Katti ◽  
Mohd Sabyasachi Rahman
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging Modality ◽  
Imaging Techniques ◽  
Age Groups ◽  
Cone Beam ◽  
Chi Square ◽  
Midpalatal Suture ◽  
Significant Difference ◽  
Mid Palatal Suture

Background: Cone beam computed tomography (CBCT) imaging techniques are the recent rage in the field of oral diagnostic imaging modality. It is noninvasive, faster and lacks anatomic superimposition. Earlier maxillary occlusal radiographs were used to assess and evaluate the mid palatal suture, but being a two dimensional imaging modality it could not assess the ossification process which takes place in multiple planes mostly due to curved nature of the palate. In this study we assessed the mid palatal suture morphology and classify them according to the variants using CBCT images. Materials and methods: A total of 200 CBCT scans (95 males and 105 females) were evaluated in the present study from the archives of an imaging center. As per Angelieri classification the midpalatal suture was classified into five categories (A–E) depending on the degree of ossification that had taken place. Statistical analysis was done by Chi Square test using SPSS version 23.0. Results: There is statistically significant difference present in the stages of maturity of mid palatal suture in various age groups with Stage B is most common in Group 1 (50%), Stage C most common in Group 2 (60%) and Group 3 (40%) and Stage E more common in Group 4 (50%). Conclusion: The results of the present study showed a wide variation in the initiation time and the degree of ossification and morphology of the midpalatal suture in different age groups. Although there was an increase in the closure of the suture with aging, age is not a reliable criterion for determining the open or closed nature of the suture. This finding is important in providing an idea as to how diverse is the ossification of maxillary sutures.

scholarly journals Cone-Beam Computed Tomography in Orthodontics

2019 ◽  
Vol 7 (3) ◽  
pp. 89 ◽  
Author(s):  
Ahmad Abdelkarim
Keyword(s):  
Computed Tomography ◽  
Ionizing Radiation ◽  
Cone Beam Computed Tomography ◽  
Clinical Judgment ◽  
Root Resorption ◽  
Imaging Modality ◽  
Imaging Techniques ◽  
Cone Beam ◽  
Pharyngeal Airway ◽  
Orthodontic Patients

Unlike patients receiving implants or endodontic treatment, most orthodontic patients are children who are particularly sensitive to ionizing radiation. Cone-beam computed tomography (CBCT) carries risks and benefits in orthodontics. The principal risks and limitations include ionizing radiation, the presence of artifacts, higher cost, limited accessibility, and the need for additional training. However, this imaging modality has several recognized indications in orthodontics, such as the assessment of impacted and ectopic teeth, assessment of pharyngeal airway, assessment of mini-implant sites, evaluation of craniofacial abnormalities, evaluation of sinus anatomy or pathology, evaluation of root resorption, evaluation of the cortical bone plate, and orthognathic surgery planning and evaluation. CBCT is particularly justified when it brings a benefit to the patient or changes the outcome of the treatment when compared with conventional imaging techniques. Therefore, CBCT should be considered for clinical orthodontics for selected patients. Prescription of CBCT requires judicious and sound clinical judgment. The central question of this narrative review article is: when does CBCT add value to the practice of orthodontics? To answer this question, this article presents discussion on radiation dosage of CBCT and other imaging techniques used in orthodontics, limitations of CBCT in orthodontics, justifying the use of CBCT in orthodontics, and the benefits and evidence-based indications of CBCT in orthodontics. This review summarizes the central themes and topics in the literature regarding CBCT in orthodontics and presents ten orthodontic cases in which CBCT proved to be valuable.

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