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Panoramic Radiography

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https://www.readbyqxmd.com/read/28293442/cone-beam-ct-in-diagnosis-and-surgical-planning-of-dentigerous-cyst
#1
Naira Figueiredo Deana, Nilton Alves
Diagnosis and preoperative planning are critical in the execution of any surgical procedure. Panoramic radiography is a routine method used in dentistry to assist clinical diagnosis; however, with this technique 3D anatomical structures are compressed into 2D images, resulting in overlapping of structures which are of interest in the diagnosis. In this study we report the case of a patient who presented with a dentigerous cyst of expressive dimensions in the body of the mandible region. The surgery was planned and executed after observing the margins of the lesion by Cone Beam Computed Tomography (CBCT)...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28257745/accuracy-and-head-positioning-effects-on-measurements-of-anterior-tooth-length-using-3-dimensional-and-conventional-dental-panoramic-radiography
#2
Noriyuki Kitai, Manabu Murabayashi, Hiroshi Sugimoto, Atsushi Fujiwara, Wakako Tome, Akitoshi Katsumata
INTRODUCTION: The purposes of this study were to examine the accuracy and the head positioning effects on measurements of anterior tooth length using 3-dimensional (3D) and conventional dental panoramic radiography and to investigate whether 3D panoramic radiography is suitable for the evaluation of anterior tooth length. METHODS: A simulated human head was radiographed at 4, 8, and 12 mm displaced positions, and at 5°, 10°, and 15° tilted positions from the standard head position using 3D and conventional panoramic radiography, and also using cone-beam computed tomography...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28256491/radiographic-findings-of-bisphosphonate-related-osteonecrosis-of-the-jaws-comparison-with-cone-beam-computed-tomography-and-panoramic-radiography
#3
A Demir, F N Pekiner
OBJECTIVE: The aim of this study is to assess radiographic findings of bisphosphonate-related osteonecrosis of the jaws (BRONJ) and to evaluate the efficiency of cone-beam computed tomography (CBCT) and panoramic radiography (PR) by comparing with each other. MATERIALS AND METHODS: The data of 46 patients treated with bisphosphonates for at least 1 to 10 years were retrospectively examined. 27 patients were selected for study group. The first inclusion criteria was an available CBCT or PR...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28228135/comparison-of-digital-panoramic-radiography-versus-cone-beam-computerized-tomography-for-measuring-alveolar-bone
#4
Zunan Tang, Xianchu Liu, Kejia Chen
BACKGROUND: Cone beam computerized tomography (CBCT) has been widely used in dental implanting. However, the local hospitals usually don't have access to CBCT due to the cost and medical investment, especially in West of China. The doctors in local hospitals have to make reasonable dental planting using orthopantomography (OPG) to reduce risks. Therefore, it is clinically meaningful to determine the magnification rate of OPG to obtain correct diagnosis. This study investigated the magnification rate of OPG in measuring different maxillofacial loci compared with CBCT...
February 22, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28210446/differences-between-panoramic-and-cone-beam-ct-in-the-surgical-evaluation-of-lower-third-molars
#5
Ruggero Rodriguez Y Baena, Riccardo Beltrami, Angelo Tagliabo, Silvana Rizzo, Saturnino-Marco Lupi
BACKGROUND: The aim of this study was to evaluate the ability to identify the contiguity between the root of the mandibular third molar and the mandibular canal (MC) in panoramic radiographs compared with Cone Beam-CT. MATERIAL AND METHODS: Panoramic radiographs of 326 third molars and CBCT radiographs of 86 cases indicated for surgery and considered at risk were evaluated. The following signs were assessed in panoramic radiographs as risk factors: radiolucent band, loss of MC border, change in MC direction, MC narrowing, root narrowing, root deviation, bifid apex, superimposition, and contact between the root third molar and the MC...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28208057/vertical-alveolar-distraction-osteogenesis-of-the-atrophic-posterior-mandible-before-dental-implant-insertion
#6
Adi Rachmiel, Dekel Shilo, Dror Aizenbud, Omri Emodi
PURPOSE: Augmentation of deficient mandibular posterior alveolar ridges poses a great challenge because of extensive bone deficiency and the presence of the inferior alveolar nerve. This study sets its focus on vertical alveolar distraction osteogenesis (ADO) at the posterior mandible before dental implant placement. MATERIALS AND METHODS: The study included 21 sites in 18 patients with severe mandibular posterior alveolar ridge deficiency. A trapezoidal osteotomy was performed, and an extraosseous alveolar distraction device was fixed and activated after a 4-day latency period at a rate of 0...
January 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28208055/fate-of-the-coronoid-process-after-coronoidotomy-and-its-effect-on-the-interincisal-opening-a-clinical-and-radiologic-assessment
#7
Sujata Mohanty, Sanchaita Kohli, Jitender Dabas, Rudra Deo Kumar, Ranjeet Bodh, Sandeep Yadav
PURPOSE: Coronoidotomy (surgical detachment of the coronoid process from the mandibular ramus) is used to treat several conditions, including coronoid hyperplasia and temporomandibular joint (TMJ) ankylosis. The stability of the outcome, however, is considered questionable because of the risk of reattachment of the coronoid process. This study aims to radiographically and clinically evaluate the long-term anatomic and physiological outcome after coronoidotomy. MATERIALS AND METHODS: In 17 patients with unilateral TMJ ankylosis, 25 coronoidotomies were performed as an additional maneuver to relieve trismus after ankylosis release...
January 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28194401/clinical-application-of-cone-beam-computed-tomography-of-the-rabbit-head-part-2-dental-disease
#8
G G Riggs, Derek D Cissell, Boaz Arzi, David C Hatcher, Philip H Kass, Amy Zhen, Frank J M Verstraete
Domestic rabbits are increasing in popularity as household pets; therefore, veterinarians need to be familiar with the most common diseases afflicting rabbits including dental disease. Current diagnostic approaches include gross oral examination, endoscopic oral examination, skull radiography, and computed tomography (CT). Cone beam computed tomography (CBCT), a new oral and maxillofacial imaging modality that has the capability to produce high-resolution images, has not yet been described for use in evaluating dental disease in rabbits...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28174060/does-additional-cone-beam-computed-tomography-decrease-the-risk-of-inferior-alveolar-nerve-injury-in-high-risk-cases-undergoing-third-molar-surgery-does-cbct-decrease-the-risk-of-ian-injury
#9
Y T Korkmaz, S Kayıpmaz, F C Senel, K T Atasoy, Z Gumrukcu
The objectives of this study were to evaluate the efficacy of additional cone beam computed tomography (CBCT) imaging on decreasing the risk of inferior alveolar nerve (IAN) injury during third molar removal in patients at high risk and to assess the surgical outcomes. The study sample included patients considered at high risk for IAN injury based on panoramic radiography (PAN) evaluation. The primary predictor was the type of imaging method (PAN only or with additional CBCT). The other variables were demographic and anatomical/radiographic factors...
February 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28163270/morphometric-study-of-a-huge-elongated-styloid-process
#10
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Yoko Tabira, Koh-Ichi Yamaki
An elongated styloid process (ESP) is present in 4% of the general population. It is sometimes found incidentally by panoramic radiography or computed tomography in the clinical setting. Few detailed morphometric studies of this phenomenon have been performed, however, especially regarding its histologic aspects. During anatomic dissection of a 71-year-old man who had died from cardiac failure and whose body had been donated to our department for medical student training, an ESP was found while disconnecting the stylohyoid muscle from the hyoid bone...
February 6, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/28149481/intraosseous-cavernous-hemangioma-in-the-mandible-a-case-report
#11
Bilgir Elif, Yildirim Derya, Kocer Gulperi, Bozova Sevgi
Intraosseous vascular lesions are rare conditions. They are most commonly seen in the vertebral column and skull; nevertheless, the mandible is a quite rare location. In this report, we present a case of intraosseous cavernous hemangioma in the mandible and discuss the clinical and radiological features. A 28-year-old male patient attended to our clinic with a complaint of painless swelling of mandible. Clinical evaluation revealed a bone-hard, smooth-surfaced, immobile mass in the left mandibular lingual area...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28110941/assessment-of-the-trabecular-structure-of-mandibular-condyles-in-patients-with-temporomandibular-disorders-using%C3%A2-fractal-analysis
#12
Belde Arsan, Taha Emre Köse, Erhan Çene, İlknur Özcan
OBJECTIVES: The aim of this study was to evaluate changes in the trabecular structure of the mandibular condyle in patients with temporomandibular disorders (TMDs) using fractal analysis. STUDY DESIGN: A total of 100 patients ages 18 to 73 years were clinically assessed using the Diagnostic Criteria for Temporomandibular Disorders. The control group was age- and sex-matched with the patient group. Panoramic radiographs were obtained using a Kodak 8000 digital device with 73 kVp and 5 mA fixed parameters...
March 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28107028/interrelationship-of-clinical-radiographic-and-haematological-features-in-patients-under-bisphosphonate-therapy
#13
Valesca S Koth, Maria A Figueiredo, Fernanda G Salum, Karen Cherubini
OBJECTIVES: To analyze the clinical, radiographic and haematological aspects of patients under bisphosphonate therapy. METHODS: A retrospective study was conducted where the records of patients taking bisphosphonates were analyzed considering the occurrence of bisphosphonate-related osteonecrosis of the jaw (BRONJ). Evaluation included panoramic and periapical radiographies, haematological examinations and clinical features. Radiographies were analyzed determining the presence or absence of bone sclerosis, osteolysis, persisting alveolar socket, narrowing of the mandibular canal, widening of the periodontal ligament space, periradicular radiolucency, sequestrum and thickening of the lamina dura...
February 17, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28047348/tu-fg-209-09-mathematical-estimation-and-experimental-measurement-of-patient-free-in-air-skin-entrance-exposure-during-a-panoramic-dental-x-ray-procedure
#14
A Errico, R Behrman, B Li
PURPOSE: To develop a simple mathematical model for estimating the patient free-in-air skin entrance exposure (SEE) during a panoramic dental x-ray that does not require the use of a head phantom. This eliminates issues associated with phantom centering and the mounting of a detector on the phantom for routine QC testing. METHODS: We used a Sirona Orthophos XG panoramic radiographic unit and a Radcal Accu-Gold system for this study. A solid state detector was attached over the slit of the Orthophos' sensor with the help of a custom-built jig...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041843/predictive-value-of-panoramic-radiography-for-injury-of-inferior-alveolar-nerve-after-mandibular-third-molar-surgery
#15
Naichuan Su, Arjen van Wijk, Erwin Berkhout, Gerard Sanderink, Jan De Lange, Hang Wang, Geert J M G van der Heijden
PURPOSE: The purpose of the present systematic review was to assess the added value of panoramic radiography in predicting postoperative injury of the inferior alveolar nerve (IAN) in the decision-making before mandibular third molar (MM3) surgery. MATERIALS AND METHODS: MEDLINE and EMBASE were searched electronically to identify the diagnostic accuracy of studies that had assessed the predictive value of 7 panoramic radiographic signs, including root-related signs (darkening of the root, deflection of the root, narrowing of the root, and dark and bifid apex of the root) and canal-related signs (interruption of the white line of the canal, diversion of the canal, and narrowing of the canal) for IAN injury after MM3 surgery...
December 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28025437/diverse-calcification-patterns-of-ameloblastic-fibro-odontoma-on-radiographic-examination
#16
Masao Araki, Shunsuke Namaki, Toshihiko Amemiya, Kunihito Matsumoto, Kazuya Honda, Yoshiyuki Yonehara, Naoyuki Matsumoto, Masatake Asano
The occurrence of ameloblastic fibro-odontoma (AFO) in the oral region is unusual and accounts for 1-3% of all odontogenic tumors. AFO presents mixed radiopaque patterns within the lesion with diverse findings; therefore, it is important to compare this tumor with other odontogenic tumors that radiographically present with calcified bodies. Herein, we observed the calcification patterns within the lesion in seven AFO cases (five males, two females; mean age, 8.3 years; age range, 4-13 years). Periapical and panoramic radiographs were obtained from all seven cases...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27990846/are-different-imaging-methods-affecting-the-treatment-decision-of-extractions-of-mandibular-third-molars
#17
Yifat Manor, Refael Abir, Alex Manor, Israel Kaffe
OBJECTIVES: To find the differences between treatment decisions of lower impacted third molars among experts of oral and maxillofacial surgery according to panoramic radiographic and CBCT findings. METHODS: A retrospective analysis of 62 panoramic radiographs and CBCT of lower third molars evaluated for treatment decisions by 9 independent experts of oral and maxillofacial surgery. RESULTS: Differences in interpretation of the panoramic radiography were found between surgeons...
December 18, 2016: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27979848/unusual-case-of-bilateral-maxillary-fungus-ball
#18
Alessandro Vinciguerra, Alberto Maria Saibene, Paolo Lozza, Alberto Maccari
An otherwise healthy 34-year-old man was referred to our ear, nose and throat (ENT) clinic for a bilateral maxillary radiologic opacity. This condition was accidentally discovered with a panoramic radiography performed during a follow-up visit after a bilateral endodontic treatment. The patient did not report any specific sinonasal symptom such as purulent nasal discharge, loss of smell and cough, apart from an unspecific sinus pressure. The CT scans showed a bilateral inflammatory process into the maxillary-ethmoidal sinuses and an iron-like density within the maxillary sinuses, while nasal endoscopy showed purulent discharge in the ostiomeatal complex...
December 15, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27966515/prevalence-of-idiopathic-osteosclerosis-in-an-iranian-population
#19
Asieh Zamani Naser, Najmeh Roshanzamir
AIM: Idiopathic osteosclerosis (IO) is a localized radiopacity with no associated pain, bony expansion, symptom, or known etiology. The aim of this study was to assess its frequency and distribution according to its location and patient's age and gender and internal structure using panoramic radiography. SUBJECTS AND METHODS: In this retrospective study, 3975 panoramic radiographs (PRs) were used. Radiopaque regions which had no certain relationship to any known sources of hard tissue production were accepted as IO and characteristics such as shape, location, internal structure, and personal information were investigated...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27917674/-giant-sialolithiasis-diagnosis-and-management-case-reports
#20
Bálint Tordai, Nóra Stáczer, László Vajta, József Szalma
Sialolithiasis is one of the most frequent form of calcifications in the maxillofacial area. 0.45% of the population is affected by symptoms caused by salivary calculi, though the estimated frequency including asymptomatic form may exceed 1% in adult population. Radiographs presenting a large portion of the maxillofacial region (panoramic radiography, computed tomography) could detect salivary calculi with high accuracy. The size of the sialoliths is usually less than 10 mm in diameter. Salivary calculi larger than 15 mm (considering the largest diameter) are classified as giant sialoliths and most of them are located in the submandibular gland or in its duct...
December 2016: Orvosi Hetilap
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