Clinical applications and performance of intelligent systems in dental and maxillofacial radiology: A review.
Authors: Nagi R, Aravinda K, Rakesh N, Gupta R, Pal A, Mann AK Abstract Intelligent systems (i.e., artificial intelligence), particularly deep learning, are machines able to mimic the cognitive functions of humans to perform tasks of problem-solving and learning. This field deals with computational models that can think and act intelligently, like the human brain, and construct algorithms that can learn from data to make predictions. Artificial intelligence is becoming important in radiology due to its ability to detect abnormalities in radiographic images that are unnoticed by the naked human eye. These systems ha...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Correlation between magnetic resonance imaging and cone-beam computed tomography for maxillary sinus graft assessment.
Authors: Laurino FAR, Choi IGG, Kim JH, Gialain IO, Ferraço R, Haetinger RG, Pinhata-Baptista OH, Abdala-Junior R, Costa C, Cortes ARG Abstract Purpose: Little is known regarding the accuracy of clinical magnetic resonance imaging (MRI) protocols with acceptable scan times in sinus graft assessment. The aim of this study was to evaluate the correlations between MRI and cone-beam computed tomographic (CBCT) measurements of maxillary sinus grafts using 2 different clinical MRI imaging protocols. Materials and Methods: A total of 15 patients who underwent unilateral sinus lift surgery with biphasic calcium ...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Intra-articular calcifications of the temporomandibular joint and associations with degenerative bone alterations.
Authors: de Almeida D, de Souza PSAP, de Mendonça LP, Verner FS, Devito KL Abstract Purpose: The purpose of this study was to use cone-beam computed tomography (CBCT) images to determine the prevalence of calcifications in the temporomandibular joint (TMJ) and to evaluate any associations between the presence of such calcifications and degenerative bone alterations of the TMJ, sex, or age. Materials and Methods: In this retrospective study, 1,058 CBCT exams were analyzed, and data regarding the presence and quantity of calcifications, the affected side, any degenerative alterations of the condyle, sex, a...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Position of the hyoid bone and its correlation with airway dimensions in different classes of skeletal malocclusion using cone-beam computed tomography.
This study investigated the position of the hyoid bone and its relationship with airway dimensions in different skeletal malocclusion classes using cone-beam computed tomography (CBCT). Materials and Methods: CBCT scans of 180 participants were categorized based on the A point-nasion-B point angle into class I, class II, and class III malocclusions. Eight linear and 2 angular hyoid parameters (H-C3, H-EB, H-PNS, H-Me, H-X, H-Y, H-[C3-Me], C3-Me, H-S-Ba, and H-N-S) were measured. A 3-dimensional airway model was designed to measure the minimum cross-sectional area, volume, and total and upper airway length. The mean cro...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Sex determination by radiographic localization of the inferior alveolar canal using cone-beam computed tomography in an Egyptian population.
Conclusion: The location of the inferior alveolar canal in the Egyptian population varies significantly by sex; accordingly, this anatomic landmark could be used as a reliable indicator of sexual dimorphism. PMID: 32601586 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Cone-beam computed tomography of mandibular foramen and lingula for mandibular anesthesia.
The objective of this study was to investigate aspects of the MnF and the lingula relevant for mandibular block anesthesia using cone-beam computed tomography (CBCT). Materials and Methods: Fifty CBCT scans were collected from a picture archiving and communications system. All scans were taken using an Alphard Vega 3030 (Asahi Roentgen Co. Ltd., Kyoto, Japan). Fifty-eight MnFs of 30 subjects were included in the study. The position of the MnF, the size of the MnF, the position of the lingula, the size of the lingula, and the shape of the lingula were measured and recorded. All data were statistically analyzed at a significance level of P
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Comparison between different cone-beam computed tomography devices in the detection of mechanically simulated peri-implant bone defects.
This study compared 2 cone-beam computed tomography (CBCT) systems in the detection of mechanically simulated peri-implant buccal bone defects in dry human mandibles. Materials and Methods: Twenty-four implants were placed in 7 dry human mandibles. Peri-implant bone defects were created in the buccal plates of 16 implants using spherical burs. All mandibles were scanned using 2 CBCT systems with their commonly used acquisition protocols: i-CAT Gendex CB-500 (Imaging Sciences, Hatfield, PA, USA; field of view [FOV], 8 cm×8 cm; voxel size, 0.125 mm; 120 kVp; 5 mA; 23 s) and Orthopantomograph OP300 (Intrumentarium, ...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Influence of tooth position within the field of view on the intensity of cone-beam computed tomographic imaging artifacts when assessing teeth restored with various intracanal materials.
This study aimed to quantify the influence of tooth position within the field-of-view (FOV) on cone-beam computed tomography (CBCT) imaging artifacts' intensity when assessing teeth restored with various intracanal materials. Materials and Methods: Seventy single-rooted teeth were divided into 7 groups (10 teeth per group): NiCr post (NC), AgPd post (AP), metal core fiberglass post (MCFG), fiberglass post (FG), anatomical fiberglass post (AFG), fiberglass post cemented with core build-up cement (FGCo), and anatomical fiberglass post cemented with core build-up cement (AFGCo). All posts were cemented using a regular dua...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Influence of reconstruction parameters of micro-computed tomography on the analysis of bone mineral density.
This study was conducted evaluate the influence of reconstruction parameters of micro-computed tomography (micro-CT) images on bone mineral density (BMD) analyses. Materials and Methods: The sample consisted of micro-CT images of the maxillae of 5 Wistar rats, acquired using a SkyScan 1174 unit (Bruker, Kontich, Belgium). Each acquisition was reconstructed following the manufacturer's recommendations (standard protocol; SP) for the application of artifact correction tools (beam hardening correction [BHC], 45%; smoothing filter, degree 2; and ring artifact correction [RAC], level 5). Additionally, images were reconstruc...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

How image-processing parameters can influence the assessment of dental materials using micro-CT.
Authors: Torres FFE, Jacobs R, EzEldeen M, de Faria-Vasconcelos K, Guerreiro-Tanomaru JM, Dos Santos BC, Tanomaru-Filho M Abstract Purpose: The aim of this study was to evaluate the influence of voxel size and different post-processing algorithms on the analysis of dental materials using micro-computed tomography (micro-CT). Materials and Methods: Root-end cavities were prepared in extracted maxillary premolars, filled with mineral trioxide aggregate (MTA), Biodentine, and Intermediate Restorative Material (IRM), and scanned using micro-CT. The volume and porosity of materials were evaluated and compared using ...
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Automatic detection of periodontal compromised teeth in digital panoramic radiographs using faster regional convolutional neural networks.
Conclusion: The faster R-CNN trained on a limited amount of labeled imaging data performed satisfactorily in detecting periodontally compromised teeth. The application of a faster R-CNN to assist in the detection of periodontally compromised teeth may reduce diagnostic effort by saving assessment time and allowing automated screening documentation. PMID: 32601592 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Ultrasonography for long-term evaluation of hyaluronic acid filler in the face: A technical report of 180 days of follow-up.
Conclusion: Based on these 2 cases, ultrasonography can be a complementary tool used to monitor facial fillers over the long term, allowing for the dynamic observation of different fillers. PMID: 32601593 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

COVID-19 and oral radiology.
Authors: Cral WG, Lima CAS, Queluz DP PMID: 32601594 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 2, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Magnitude of beam-hardening artifacts produced by gutta-percha and metal posts on cone-beam computed tomography with varying tube current.
This study was performed to evaluate the magnitude of artifacts produced by gutta-percha and metal posts on cone-beam computed tomography (CBCT) scans obtained with different tube currents and with or without metal artifact reduction (MAR). Materials and Methods: A tooth was inserted in a dry human mandible socket, and CBCT scans were acquired after root canal instrumentation, root canal filling, and metal post placement with various tube currents with and without MAR activation. The artifact magnitude was assessed by the standard deviation (SD) of gray values and the contrast-to-noise ratio (CNR) at the various distan...
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study.
This study also aimed to evaluate the periodontal condition of class III malocclusion patients who had not undergone orthodontic treatment. Materials and Methods: The sample included cone-beam computed tomography scans of 24 Korean subjects (3 male and 21 female). Alveolar bone thickness (ABT), alveolar bone area (ABA), alveolar bone loss (ABL), and fenestration of the maxillary and mandibular incisors were measured using 3-dimensional imaging software. Results: All incisors displayed an ABT of less than 1.0 mm from the labial surface to root level 7 (70% of the root length). A statistically significant difference ...
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Accuracy and reliability of 2-dimensional photography versus 3-dimensional soft tissue imaging.
Conclusion: SPG was found to a reliable and accurate tool for the morphological evaluation of soft tissue in comparison to 2D imaging and laser scanning. PMID: 32206616 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Does the metal artifact reduction algorithm activation mode influence the magnitude of artifacts in CBCT images?
Conclusion: Both modes of MAR activation were effective in decreasing the magnitude of CBCT artifacts, especially when the effects of the artifacts were more noticeable. PMID: 32206617 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Impact of radiotherapy on mandibular bone: A retrospective study of digital panoramic radiographs.
Conclusion: The results suggest that 3D conformational radiotherapy for head and neck cancer negatively affected the trabecular microarchitecture and mandibular bone mass. PMID: 32206618 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Effect of slice inclination and object position within the field of view on the measurement accuracy of potential implant sites on cone-beam computed tomography.
Authors: Vadiati Saberi B, Khosravifard N, Nourzadeh A Abstract Purpose: The purpose of this study was to evaluate the accuracy of linear measurements in the horizontal and vertical dimensions based on object position and slice inclination in cone-beam computed tomography (CBCT) images. Materials and Methods: Ten dry sheep hemi-mandibles, each with 4 sites (incisor, canine, premolar, and molar), were evaluated when either centrally or peripherally positioned within the field of view (FOV) with the image slices subjected to either oblique or orthogonal inclinations. Four types of images were created of each regi...
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Development of an evidence-based clinical imaging diagnostic guideline for implant planning: Joint recommendations of the Korean Academy of Oral and Maxillofacial Radiology and National Evidence-based Healthcare Collaborating Agency.
Conclusion: We recommend radiography or cone-beam computed tomography (CBCT) scanning for individual patients judged to require a cross-sectional image after reading of a panoramic X-ray image and a conventional intraoral radiological image. Various steps should be taken to raise awareness of these recommendations among clinicians and the public, and K-CIG should be regularly reviewed and revised. PMID: 32206620 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Incidental findings in a consecutive series of digital panoramic radiographs.
Conclusion: The observed prevalence of 32.1% for IFs of any type underscores the need for a dental practitioner to review the entire DPR when a patient presents for an initial dental examination (or check-up) or for dental hygiene. Only a single IF (a central giant cell granuloma) provoked alarm, as it was initially considered malignant. Similarly, impacted teeth and suspected cysts need careful evaluation upon discovery to determine how they may be optimally managed. PMID: 32206621 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Three types of ossifying fibroma: A report of 4 cases with an analysis of CBCT features.
Authors: Jih MK, Kim JS Abstract Ossifying fibroma is a slow-growing benign neoplasm that occurs most often in the jaws, especially the mandible. The tumor is composed of bone that develops within fibrous connective tissue. Some ossifying fibromas consist of cementum-like calcifications, while others contain only bony material; however, a mixture of these calcification types is commonly seen in a single lesion. Of the craniofacial bones, the mandible is the most commonly involved site, with the lesion typically inferior to the premolars and molars. Ossifying fibroma of the jaw shows a female predominance. Some repo...
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Strain elastography of palatal tumors in conjunction with intraoral ultrasonography, computed tomography, and magnetic resonance imaging: 2 case reports.
This report describes 2 clinical cases in which strain elastography was used to assess palatal tumors in conjunction with intraoral ultrasonography, CT, and MRI. In the first case, diagnosed as a myoepithelioma, the strain was determined to be 0.000% (strain of normal tissue, 0.556%). In the second case, diagnosed as an adenoid cystic carcinoma, the determined strain was 0.000% (strain of normal tissue, 1.077%). Therefore, we conclude that intraoral strain elastography can be useful for evaluating palatal lesions. PMID: 32206623 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - March 26, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Three-dimensional comparison of 2 digital models obtained from cone-beam computed tomographic scans of polyvinyl siloxane impressions and plaster models.
Conclusion: There was no statistically significant difference in most of the measurements. The maximum tooth size difference was 0.15 mm, and the average difference in model overlap was 53 µm. Digital models produced by scanning impressions at a high resolution using CBCT can be used in clinical practice. PMID: 31915610 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Detection of peri-implant bone defects using cone-beam computed tomography and digital periapical radiography with parallel and oblique projection.
Authors: Vadiati Saberi B, Khosravifard N, Ghandari F, Hadinezhad A Abstract Purpose: To compare the diagnostic accuracy of cone-beam computed tomography (CBCT) with that of parallel (PPA) and oblique projected periapical (OPA) radiography for the detection of different types of peri-implant bone defects. Materials and Methods: Forty implants inserted into bovine rib blocks were used. Thirty had standardized bone defects (10 each of angular, fenestration, and dehiscence defects), and 10 were defect-free controls. CBCT, PPA, and OPA images of the samples were acquired. The images were evaluated twice by each of ...
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Effects of energy level, reconstruction kernel, and tube rotation time on Hounsfield units of hydroxyapatite in virtual monochromatic images obtained with dual-energy CT.
This study was performed to investigate the effects of energy level, reconstruction kernel, and tube rotation time on Hounsfield unit (HU) values of hydroxyapatite (HA) in virtual monochromatic images (VMIs) obtained with dual-energy computed tomography (DECT) (Siemens Healthineers, Erlangen, Germany). Materials and Methods: A bone density calibration phantom with 3 HA inserts of different densities (CTWATER®; 0, 100, and 200 mg of HA/cm3) was scanned using a twin-beam DECT scanner at 120 kVp with tube rotation times of 0.5 and 1.0 seconds. The VMIs were reconstructed by changing the energy level (with options of 4...
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Computer programme to assess mandibular cortex morphology in cases of medication-related osteonecrosis of the jaw with osteoporosis or bone metastases.
Conclusion: The use of a computer programme to assess mandibular cortex morphology may be an effective technique for the objective and quantitative evaluation of the MCI in MRONJ patients with osteoporosis or bone metastases. PMID: 31915613 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Clinical and panoramic radiographic features of osteomyelitis of the jaw: A comparison between antiresorptive medication-related and medication-unrelated conditions.
Conclusion: We observed some differences in imaging features as shown on panoramic radiography according to the history of antiresorptive medication use. This study may help elucidate the predictive imaging features of medication-related osteonecrosis of the jaw. PMID: 31915614 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

A clinical pilot study of jawbone mineral density measured by the newly developed dual-energy cone-beam computed tomography method compared to calibrated multislice computed tomography.
Authors: Kim HJ, Kim JE, Choo J, Min J, Chang S, Lee SC, Pyun WB, Seo KS, Karm MH, Koo KT, Rhyu IC, Myoung H, Heo MS Abstract Purpose: This clinical pilot study was performed to determine the effectiveness of dual-energy cone-beam computed tomography (DE-CBCT) in measuring bone mineral density (BMD). Materials and Methods: The BMD values obtained using DE-CBCT were compared to those obtained using calibrated multislice computed tomography (MSCT). After BMD calibration with specially designed phantoms, both DE-CBCT and MSCT scanning were performed in 15 adult dental patients. Three-dimensional (3D) Digital Imagi...
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Power Doppler ultrasound-guided sialography using the phenomenon of increased blood flow: A technical report.
Conclusion: Power Doppler ultrasound was found to be a simple, safe, and effective tool for real-time sialography monitoring. PMID: 31915616 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Case series of cleidocranial dysplasia: Radiographic follow-up study of delayed eruption of impacted permanent teeth.
This report describes 3 cases of cleidocranial dysplasia (CCD) and presents relevant findings on long-term follow-up radiographic images of impacted permanent teeth with delayed eruption. Radiographic images of 3 CCD patients were reviewed retrospectively. These images were mainly composed of panoramic and skull radiographs, and the follow-up periods were 3, 13, and 13 years, respectively. The distinct features revealed by the images were described, and the eruption state of impacted permanent teeth was evaluated. The features common to the 3 cases were multiple supernumerary teeth, the presence of Wormian bone, underdevel...
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Steatocystoma multiplex: A case report of a rare entity.
This report describes a case of steatocystoma multiplex of both sides of the neck and multiple dental anomalies, with a focus on its clinical, radiological, and histopathological characteristics, as well as the possibility that the patient exhibited the familial type of this condition. PMID: 31915618 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Pierre Robin sequence with severe scoliosis in an adult: A case report of clinical and radiological features.
This report presents the case of a 35-year-old woman with PRS and scoliosis. Among the syndromes related to PRS, cerebro-costo-mandibular syndrome (CCMS), which is characterized by posterior rib gap defects and vertebral anomalies, was suspected in this patient. However, no posterior rib gap defect was detected on radiological examinations. Although over 80 cases of CCMS have been reported to date, few cases of PRS with scoliosis alone have been reported. Therefore, this report demonstrated the clinical, radiological, and cephalometric characteristics of an adult patient with PRS and scoliosis, but without rib anomalies. ...
Source: Imaging Science in Dentistry - January 11, 2020 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

New evolution of cone-beam computed tomography in dentistry: Combining digital technologies.
Authors: Jain S, Choudhary K, Nagi R, Shukla S, Kaur N, Grover D Abstract Panoramic radiographs and computed tomography (CT) play a paramount role in the accurate diagnosis, treatment planning, and prognostic evaluation of various complex dental pathologies. The advent of cone-beam computed tomography (CBCT) has revolutionized the practice of dentistry, and this technique is now considered the gold standard for imaging the oral and maxillofacial area due to its numerous advantages, including reductions in exposure time, radiation dose, and cost in comparison to other imaging modalities. This review highlights the b...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Dental students' ability to detect maxillary sinus abnormalities: A comparison between panoramic radiography and cone-beam computed tomography.
Authors: Rosado LPL, Barbosa IS, de Aquino SN, Junqueira RB, Verner FS Abstract Purpose: To compare the diagnostic ability of undergraduate dental students to detect maxillary sinus abnormalities in panoramic radiographs (PR) and cone-beam computed tomography (CBCT). Materials and Methods: This was a retrospective study based on the evaluation of PR and CBCT images. A pilot study was conducted to determine the number of students eligible to participate in the study. The images were evaluated by 2 students, and 280 maxillary sinuses were assessed using the following categories: normal, mucosal thickening, sinus ...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Evaluation of oral and maxillofacial swellings using ultrasonographic features.
Authors: Abdelsalam TA, Amer ME, Mahrous A, Abdelkader M Abstract Purpose: The aim of this study was to evaluate the characteristic features of oral and maxillofacial swellings that could be seen on ultrasonographic examinations. Materials and Methods: Fifty patients with oral and/or maxillofacial swellings were randomly selected, thorough case histories and clinical examinations were done, ultrasonographic examinations with Doppler imaging were performed, and the features of every group were studied. Finally, histopathological evaluations were performed to identify the final diagnosis, according to which patie...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Evaluation of morphometric features of fossa navicularis using cone-beam computed tomography in a Turkish subpopulation.
Conclusion: Fossa navicularis was found to be rare (27.5%). Anatomical variants of the skull base can also be clearly identified on CBCT images. The results of this study may be useful to radiologists, anatomists, and surgeons interested in the skull base. PMID: 31583203 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Diversion of the mandibular canal: Is it the best predictor of inferior alveolar nerve damage during mandibular third molar surgery on panoramic radiographs?
Authors: Tassoker M Abstract Purpose: The aim of this study was to evaluate the relationship between the mandibular canal and impacted mandibular third molars using cone-beam computed tomography (CBCT) and to compare the CBCT findings with signs on panoramic radiographs (PRs). Materials and Methods: This retrospective study consisted of 200 mandibular third molars from 200 patients who showed a close relationship between the mandibular canal and impacted third molars on PRs and were referred for a CBCT examination of the position of the mandibular canal. The sample consisted of 124 females and 76 males, with ag...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Determination and classification of intraoral phosphor storage plate artifacts and errors.
Conclusion: Identification of image artifacts can help to improve the quality of the radiographic image and control the radiation dose. Knowledge of the basic physics and technology of PSP systems could aid to reduce the need for repeated radiography. PMID: 31583205 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Diagnostic considerations in central odontogenic fibroma of the maxilla: 2 case reports.
This report describes 2 clinical cases of middle-aged women with COF. Clinical examination revealed palatal mucosal depression; additionally, oral examination, as well as panoramic radiographs, intraoral radiographs, and computed tomography scans, revealed severe root resorption. This report highlights the clinical and radiological imaging features of COF, with the goal of enabling straightforward differential diagnosis of the lesion by the clinician and thereby appropriate treatment of the patient. PMID: 31583206 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Radiographic manifestations of fibroblastic osteosarcoma: A diagnostic challenge.
Authors: Tahmasbi-Arashlow M, Barnts KL, Nair MK, Cheng YL, Reddy LV Abstract Osteosarcoma is the most common primary bone tumor after plasma cell neoplasms. Osteosarcoma has diverse histological features and is characterized by the presence of malignant spindle cells and pluripotent neoplastic mesenchymal cells that produce immature bone, cartilage, and fibrous tissue. Osteosarcoma most frequently develops in the extremities of long bones, but can occur in the jaw in rare cases. The clinical and biological behavior of osteosarcoma of the jaw slightly differs from that of long-bone osteosarcoma. The incidence of ja...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Maxillary ameloblastoma in an 8-year-old child: A case report with a review of the literature.
This report presents a case of plexiform ameloblastoma in an uncommon location in an 8-year-old child. The lesion was initially thought to be a dentigerous cyst, based on its location and radiographic appearance. The clinical and radiographic features, histopathology, and treatment of solid, plexiform, maxillary ameloblastoma are reviewed, with an added emphasis on a literature review of ameloblastoma in children. This report emphasize the importance of long-term follow-up, since recurrence may occur many years after initial tumor removal. PMID: 31583208 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Condylar jugular diverticulum: A report of 3 cases.
This report details 3 cases of condylar jugular diverticulum. Extension of the jugular bulb into the ipsilateral occipital condyle was noted as an incidental finding on cone-beam computed tomographic (CBCT) images of 3 patients. All 3 patients were asymptomatic, and this finding was unrelated to the initial area of interest. CBCT use is becoming ubiquitous in dentistry, as it allows 3-dimensional evaluation, unlike conventional radiography. Proper interpretation of the entire CBCT is essential, and recognition of the indicators of condylar jugular diverticulum may prevent misdiagnosis of this rare entity. PMID: 3158320...
Source: Imaging Science in Dentistry - October 5, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Common conditions associated with displacement of the inferior alveolar nerve canal: A radiographic diagnostic aid.
Conclusion: When clinicians encounter a lesion associated with displaced mandibular canal, they should first consider these entities in the differential diagnosis. This review would help dentists make more accurate diagnoses and develop better treatment plans according to patients' radiographs. PMID: 31281784 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Common conditions associated with mandibular canal widening: A literature review.
Conclusion: When clinicians encounter a lesion associated with mandibular canal widening, they should immediately consider these entities in the differential diagnosis. Doing so will help dentists make more accurate diagnoses and develop better treatment plans based on patients' radiographs. PMID: 31281785 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

The influence of different scan resolutions on the detection of proximal caries lesions.
Conclusion: Spatial resolution may influence the accuracy of the detection of incipient caries lesions in radiographs with PSP plates. Images with low spatial resolution seem to be more appropriate for this purpose. PMID: 31281786 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Correlations between anatomical variations of the nasal cavity and ethmoidal sinuses on cone-beam computed tomography scans.
Conclusion: Radiologists and surgeons must pay close attention to the anatomical variations of the sinonasal region in the preoperative assessment to prevent perioperative complications. PMID: 31281787 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Comparison of cone-beam computed tomography and panoramic radiography in the evaluation of maxillary sinus pathology related to maxillary posterior teeth: Do apical lesions increase the risk of maxillary sinus pathology?
Authors: Terlemez A, Tassoker M, Kizilcakaya M, Gulec M Abstract Purpose: The aims of this study were first, to compare panoramic radiography with cone-beam computed tomography (CBCT) for evaluating topographic relationships, such as the classification of maxillary posterior teeth and their distance to the maxillary sinus floor; and second, to determine the relationship between maxillary sinus pathology and the presence of apical lesions. Materials and Methods: In total, 285 paired CBCT and panoramic radiography records of patients (570 maxillary sinuses) were retrospectively analyzed. Both imaging modalities w...
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Influence of the anterior arch shape and root position on root angulation in the maxillary esthetic area.
This study was conducted to characterize the relationship of the angulation between the tooth root axis and alveolar bone axis with anterior alveolar (AA) arch forms and sagittal root position (SRP) in the anterior esthetic region using cone-beam computed tomography (CBCT) images. Materials and Methods: CBCT images that met the inclusion and exclusion criteria were categorized using a recent classification of AA arch forms and a SRP classification. Then, the angulation of the root axis and the alveolar bone axis was measured using mid-sagittal CBCT images of each tooth. The relationships of the angulation with each AA ...
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research

Factors affecting modulation transfer function measurements in cone-beam computed tomographic images.
Conclusion: To measure more accurate and stable MTF values, it is better to measure MTF 10 values in small-voxel images. In large-voxel images, the proper oversampling technique is required. MTF values from the radial and tangential directions may be different, and MTF values vary depending on the measured area. PMID: 31281790 [PubMed] (Source: Imaging Science in Dentistry)
Source: Imaging Science in Dentistry - July 12, 2019 Category: Dentistry Tags: Imaging Sci Dent Source Type: research