A 5 years follow-up for ischemic cardiac outcomes in patients with carotid artery calcification on panoramic radiographs confirmed by doppler ultrasonography in Turkish population.
Authors: Akkemik O, Kazaz H, Tamsel S, Dündar N, Sahinalp S, Ellidokuz H Abstract OBJECTIVE: To evaluate the diagnostic accuracy of digital panoramic radiograph (DPR) for detection of carotid artery calcification (CAC) confirmed by Doppler Ultrasonography (DUSG) and to clarify the relationship between between CAC identified by DPR and cardiovascular events through a 5 year follow-up period. METHODS: Of 3600 consecutive patients examined, 158 patients presented with CAC as detected by DPR. The final study group was composed of 96 patients who had CAC confirmed by DUSG or CT angiogram. The control gro...
Source: Dentomaxillofacial Radiology - February 15, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Relationship between CNR and visibility of anatomical structures of cone-beam computed tomography images under different exposure parameters.
CONCLUSIONS: Although CNR decrease under a lower exposure parameter, the image quality often remained acceptable at exposure levels below the manufacture's recommended settings. It is possible to standardize subjective image quality by physical factors. Currently, it is not possible to predetermine a change point CNR value due to different CBCT machine and variation of diagnostic tasks. PMID: 32045279 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - February 13, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Does the addition of a lead foil to digital radiographic receptors influence image contrast and approximal caries lesions diagnosis?
Authors: Fontenele RC, Nejaim Y, Farias Gomes A, Gaêta-Araujo H, Haiter-Neto F, Freitas DQ Abstract OBJECTIVES: To access the influence of the addition of a lead foil to intraoral digital radiographic receptors on image contrast and approximal caries lesions diagnosis. METHODS: 40 posterior teeth were distributed in silicone phantoms composed of two premolars, two molars and a non-test canine. Radiographic images of the phantoms were obtained with and without the incorporation of a lead foil, using the Digora Optime and Digora Toto systems. Four observers scored the images for the presence of caries lesio...
Source: Dentomaxillofacial Radiology - February 8, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Computer-aided diagnosis system for osteoporosis based on quantitative evaluation of mandibular lower border porosity using panoramic radiographs.
Authors: Nakamoto T, Hatsuta S, Yagi S, Taguchi A, Verdonschot RG, Kakimoto N Abstract OBJECTIVES: A new computer-aided screening system for osteoporosis using panoramic radiographs was developed. The conventional system could detect porotic changes within the lower border of the mandible, but its severity could not be evaluated. Our aim was to enable the system to measure severity by implementing a linear bone resorption severity index (BRSI) based on the cortical bone shape. METHODS: The participants were 68 females (>50 years) who underwent panoramic radiography and lumbar spine bone density measurements....
Source: Dentomaxillofacial Radiology - February 7, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Ultrasonography for diagnosis of peri-implant diseases and conditions: a detailed scanning protocol and case demonstration.
CONCLUSIONS: High-frequency ultrasonography could be another cross-sectional imaging modality in adjunct to radiographs for diagnosing imminent peri-implant diseases and conditions that negatively influence quality of life of millions of patients with implants. This case study provides a framework for future related research work and clinical scanning guidelines. PMID: 32017634 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - February 5, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Through the quality kaleidoscope: reflections on research in dentomaxillofacial imaging.
Authors: Rohlin M, Horner K, Lindh C, Wenzel A Abstract The REWARD statement has highlighted how weaknesses in health research can produce misleading results and waste valuable resources. Research on diagnostic efficacy in the field of dentomaxillofacial radiology (DMFR) is no exception to these criticisms and could be strengthened by more robust study designs, consistent use of a core set of outcome measures and completeness in reporting. Furthermore, we advocate that everyone participating in collaborative research on clinical interventions subscribes to the importance of methodological quality in how imaging met...
Source: Dentomaxillofacial Radiology - January 25, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

The correlation between the three-dimensional radiolucency area around the crown of impacted maxillary canines and dentigerous cysts.
This study aimed to reveal the correlation between the radiolucency area around the crown of impacted maxillary canines and dentigerous cysts using cone-beam computed tomography (CBCT). CBCT data were obtained from patients with impacted maxillary canines. Three points of five areas (tooth cusp area and buccal, lingual, mesial and distal areas of the crown) were randomly selected, and the distance between the point and the surrounding hard tissue was measured respectively. The mean values were recorded as the radiolucency area. These results were compared with the occurrence of dentigerous cysts during surgery. 58 patients...
Source: Dentomaxillofacial Radiology - January 18, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Stafne's bone cyst revisited and renamed: The benign mandibular concavity.
CONCLUSION: This study illustrates the wide variation of SBC locations across the mandible and leads us to conclude that the differential diagnosis of every asymptomatic, oval or round, well-defined, uniform radiolucent lesion on two dimensional radiographs of the mandible should include "a benign mandibular concavity", formerly known as Stafne's bone cyst. PMID: 31944858 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - January 18, 2020 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Mandibular radiomorphometric parameters of women with cemento-osseous dysplasia.
CONCLUSION: Females with COD had lower values of radiomorphometric parameters in mandibular cortical bone than females of the same age without COD. These results suggest that, in addition to the dental care recommended in the literature, COD females also require more attention and screening for low bone mineral density. PMID: 31846355 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - December 19, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Dentomaxillofacial Radiology in 2020-Exciting developments ahead.
Authors: Schulze RK PMID: 31829058 [PubMed - in process] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - December 13, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Examination of new parameters for sex determination of mandible using japanese computer tomography data.
In this study, we used the homologous model technique and principal component analysis to determine gender difference from morphology of the mandible. METHODS AND MATERIALS: Forty-five patients (23 males and 22 females) of CT imaging for tooth extraction from January 2018 to March 2019 at Department of oral surgery, Osaka Medical College. The mean age was 43.1 ± 14.6. Patients with less than 14 remaining teeth were excluded because the number of remaining teeth may affect the shape of the mandible. 3D images were constructed, and 20 landmarks plotting on the 3D model surfaces. We generated template models of the...
Source: Dentomaxillofacial Radiology - December 12, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Usefulness of a deep learning system for diagnosing Sj ögren's syndrome using ultrasonography images.
CONCLUSIONS: The deep learning system had a high diagnostic ability for SjS. This suggests that deep learning could be used for diagnostic support when interpreting US images. PMID: 31804146 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - December 6, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Infrared thermography assessment of patients with temporomandibular disorders.
CONCLUSION: Infrared Thermography resulted in low AUC, making it difficult to differentiate TMD via thermographic analysis. The intensity of pain upon palpation in patients with TMD may be accompanied by a decrease in local temperature. PMID: 31794257 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - December 5, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Cone beam CT and treatment decision of mandibular third molars: removal vs. coronectomy - a 3-year audit.
Authors: Matzen LH, Villefrance JS, Nørholt SE, Bak J, Wenzel A Abstract OBJECTIVE: to assess 1)the work-flow in the treatment decision process of mandibular third molars based on a panoramic image and CBCT and 2)the impact of radiographic markers in CBCT on the decision to perform coronectomy. METHODS: 1437 teeth in 917 patients (mean age 27.8 years, range 18-72) underwent clinical and panoramic examination. If there was an indication for removal of the tooth, and signs of a close relation to the inferior alveolar nerve (IAN) were present in the panoramic image, a CBCT was performed. Treatment decision ...
Source: Dentomaxillofacial Radiology - November 30, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Head position classification of medical imaging studies: an assessment and development of a protocol.
CONCLUSION: This study established a novel head position classification protocol that uses multiple measures accounting for both head and neck positions to reliably classify head positions in imaging studies as: flexion, neutral, or extension. Given the limitation that no single measure reliably classified head position, this protocol is strongly recommended to researchers who need to account for head position to reach valid conclusions. PMID: 31778320 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 30, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Reliability and accuracy of segmentation of mandibular condyles from different three-dimensional imaging modalities: a systematic review.
CONCLUSION: A definitive conclusion with regards to which current technique is most reliable and accurate to efficiently segment the mandibular condyle cannot be made with the currently available evidence. This is especially true in terms of non-CBCT imaging modalities with very limited literature available. PMID: 31778321 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 30, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Strain and shear wave ultrasound elastography in evaluation of chronic inflammatory disorders of major salivary glands.
Authors: Elbeblawy YM, Eshaq Amer Mohamed M Abstract OBJECTIVE: The aim of this study was to assess chronic inflammatory conditions of major salivary glands by ultrasound elastography. METHODS: 21 patients with chronic inflammatory conditions of major salivary glands and 21 healthy adult volunteers were included in this study. All participants underwent B-mode sonography and ultrasound elastography. The diagnostic performance of strain ratio and shear wave velocity was evaluated by sensitivity and specificity at the optimum cutoff point and the area under the receiver operating characteristic curve. RESULTS...
Source: Dentomaxillofacial Radiology - November 28, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Panoramic versus CBCT used to reduce inferior alveolar nerve paresthesia after third molar extractions: a systematic review and meta-analysis.
CONCLUSIONS: We concluded that both interventions had a similar ability to reduce temporary paresthesia of the IAN after third molar surgery with moderate certainty of evidence. PMID: 31724883 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 16, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Measurements of volumetric bone mineral density in the mandible do not predict spinal osteoporosis.
The objective of this study was to determine whether the trabecular volumetric Bone Mineral Density (vBMD) of the middle, body and angle of the mandible correlates with vBMD of the cervical and lumbar vertebrae in a Chinese population. METHODS AND MATERIALS: Six hundred and sixty one subjects (270 males, 391 females), ranging from 20 to 59 years of age, were recruited for vBMD measurements by quantitative computed tomography (QCT). Basic information (age, height and weight), vBMD of the mandible (middle, body and angle sites), and vBMD of the cervical and lumbar vertebrae were recorded. Spearman's rank correlation test...
Source: Dentomaxillofacial Radiology - November 15, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Validity of micro-CT for in vitro caries detection: a systematic review and meta-analysis.
CONCLUSIONS: This study demonstrated the validity of micro-CT for in vitro caries detection in comparison with histology. PMID: 31709810 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 13, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Accuracy of computer-assisted image analysis in the diagnosis of maxillofacial radiolucent lesions: A systematic review and meta-analysis.
CONCLUSIONS: The overall evaluation showed all studies presented high accuracy rates of computer-aided diagnosis systems in classifying radiolucent maxillofacial lesions compared to histopathological biopsy. However, due to the moderate heterogeneity found among the studies included in this meta-analysis, a pragmatic recommendation about the use of computer-assisted analysis is not possible. PMID: 31709811 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 13, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

An overview of radiological manifestations of acquired dental developmental disturbances in paediatric head and neck cancer survivors.
CONCLUSIONS: This paper presents five cases and a radiographic inventory to illustrate disturbances of dental development associated with chemotherapy and radiotherapy therapy in children. Medical and dental professionals involved in the treatment of cancer survivors are relatively unaware of the dental consequences of radiation therapy and the age dependency of specific regional effects. These effects can be severe, with great impact on quality of life. Further research in this area could help improve planning of radiation therapy for children, potentially preventing or limiting dental or maxillofacial sequelae. PMID:...
Source: Dentomaxillofacial Radiology - November 13, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Mandibular cortical indices and their relation to gender and age in the cone-beam computed tomography.
Authors: Goyushov S, Dursun E, Tözüm TF Abstract OBJECTIVES: The purpose of this study is to evaluate normal ranges of cortical bone Hounsfield units (HU) indices through cone beam computed tomography (CBCT) images, and to investigate their relationships with age and sex. METHODS: Seven hundred adult human CBCT images were evaluated retrospectively, and divided into 4 age groups. Six different cortical bone HU measurements were applied bilaterally, where gender and age were recorded. Collected data were subjected to statistical analysis and ANOVA tests were used for various comparisons. RESULTS: T...
Source: Dentomaxillofacial Radiology - November 13, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Image-stitching artefacts and distortion in CCD-based cephalograms and their association with sensor type and head movement: ex vivo study.
CONCLUSION: Sensor type, movement type, distance, and pattern affected presence and severity of image-stitching artefacts and distortion in CCD-based cephalograms. PMID: 31697180 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 9, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Bisphophonate alterations of the jaw bones in individuals with multiple myeloma.
Authors: Feitosa EF, Vasconcellos MM, Magalhães RJP, Domingos-Vieira AC, Visconti MAPG, Guedes FR, Maiolino A, Torres SR Abstract OBJECTIVE: To verify quantitative differences of the mandibular cortical and trabecular bone between patients with multiple myeloma (MM) under bisphosphonate (BP) therapy and a control group never exposed to BP. METHODS: Clinical and demographic characteristics were collected through medical records and interviews. Mandibular cortical thickness (MCT) and fractal dimension (FD) were measured on cone beam computed tomography (CBCT) images, on the molar region, in both groups. Ad...
Source: Dentomaxillofacial Radiology - November 3, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

CT-like MR imaging using the zero-TE technique for osseous changes of the TMJ.
CONCLUSIONS: It is suggested that ZTE-MRI provides clinically reliable images for bone assessment in TMJ disorder. MRI may become a beneficial diagnostic tool for patients with both TMJ disc and bone pathology, with advantages involving medical costs and radiation dose. PMID: 31670578 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - November 3, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Validation of a 3d CBCT-based protocol for the follow-up of mandibular condyle remodeling.
Authors: Verhelst PJ, Shaheen E, de Faria Vasconcelos K, Van der Cruyssen F, Shujaat S, Coudyzer W, Salmon B, Swennen G, Politis C, Jacobs R Abstract OBJECTIVES: Three-dimensional models of mandibular condyles provide a way for condylar remodeling follow-up. The overall aim was to develop and validate a user-friendly workflow for CBCT-based semi-automatic condylar registration and segmentation. METHODS: A rigid voxel-based registration (VBR) technique for registration of two postoperative CBCT-scans was tested. Two modified mandibular rami, with or without gonial angle, were investigated as the volume of intere...
Source: Dentomaxillofacial Radiology - November 3, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Head and neck osteosarcoma: CT and MR imaging features.
CONCLUSIONS: HNO is a rare condition and is commonly associated with previous radiation exposure. This study provides age, sex distribution, location, CT and MRI features of HNO. PMID: 31642708 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - October 24, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Implementation of a modified quality assurance protocol for CBCT machines within UT health San antonio school of dentistry.
CONCLUSION: This newly-developed QA protocol established image quality baseline values. Recommended tests, frequency, and actions levels have been updated and control charts established for future trend analysis to enable proper implementation of a QA protocol monitoring CBCT machines at our institution. PMID: 31642713 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - October 24, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Evaluation of treatment response in oral chronic graft-versus-host patients by power doppler ultrasound: a prospective study.
Authors: Liu Y, Jiaan Z, Guo H, Li W, Wang X, Chen Z, Liu F, Bilig A Abstract OBJECTIVE: To date, imaging and non-invasive examination methods for evaluating the oral tissue of patients who with oral chronic graft-versus-host disease (GVHD) are still lacking. Herein, we assessed the ultrasonography imaging characteristics of chronic GVHD patients' buccal soft tissue and evaluated the response to treatment using gray-scale and power Doppler (PD) ultrasound. The overall objective of the study was to determine the potential of ultrasonography to provide an early and objective indication of a therapeutic response to tr...
Source: Dentomaxillofacial Radiology - October 17, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Correction to influence of VistaScan image enhancement filters on diagnosis of simulated periapical lesions on intraoral radiographs.
Authors: Brasil DM, Yamasaki MC, Santaella GM, Guido MCZ, Freitas DQ, Haiter-Neto F PMID: 31592696 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - October 10, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Can the lower rate of CT- or MRI-related adverse drug reactions to contrast media due to stricter limitations on patients undergoing contrast-enhanced CT or MRI?
CONCLUSIONS: The lower occurrence rate of ADRs to contrast media in dental hospitals could be due to the adoption of appropriate criteria for patients with some diseases undergoing enhanced CT or MRI. Complete suppression of ADRs to contrast media for CT or MRI is unrealistic, so attention is warranted for patients with decreased liver function when performing enhanced CT, and for patients with digestive disorders when performing enhanced MRI. PMID: 31596128 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - October 10, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

The accuracy of panoramic radiographs as a screening of bone mineral density in women: a meta-analysis.
CONCLUSION: The Mandibular Cortical Index (MCI) can be recommended as a feasible tool to screen initial BMD loss (osteopenia) in females above 30 years old using PR exams. PMID: 31596133 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - October 10, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Solitary plasmacytoma of maxillofacial bones: correlation of CT features with pathological findings.
Authors: Liu Y, Li K Abstract OBJECTIVE: To explore the CT features of solitary plasmacytoma (SP) of maxillofacial bones and correlation with pathological findings. METHODS AND MATERIALS: We retrospectively reviewed the clinical, CT and pathological features of SP in the maxillofacial bones. 16 patients with clinically and histologically proven SP of maxillofacial bones were involved. They were aged from 27 to 79 years old (median 55.5 years old), and included 12 males and four females (males vs females: 3:1). All patients performed CT examination, in whom 13 patients underwent enhanced scanning and three plain...
Source: Dentomaxillofacial Radiology - September 29, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Selection and application of coils in temporomandibular joint MRI.
CONCLUSION: Both the phased array head coil and dS Flex M surface coil can be used for temporomandibular joint MRI. PMID: 31559845 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 29, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Radiological diagnostic features of uremic leontiasis ossea: a case report.
Authors: Wang J, Zhao X, Shi H, Zhu L, Tao X Abstract Uremic leontiasis ossea (ULO), which occurs in the craniomaxillofacial region, is a sign of terminal stage osteitis fibrosa cystica or brown tumors and primarily caused by secondary hyperparathyroidism induced by renal failure. Pathophysiological changes include osteoclasts or osteoblasts proliferation, bone resorption, bone decalcification, and connective tissue proliferation. In this paper, we report a case of a 24-year-old female patient, who was diagnosed with ULO and presented with multiple facial swellings. Imaging features included zonal patterns with alt...
Source: Dentomaxillofacial Radiology - September 29, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

IAEA survey of dental cone beam computed tomography practice and related patient exposure in nine central and eastern european countries.
CONCLUSIONS: The results emphasize the need for a cautious approach to using dental CBCT. Imaging only when the clinical indications are clear, accompanied with the appropriate radiographic techniques and the optimum imaging protocol, will help reduce radiation dose to patients. PMID: 31530009 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 20, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Impact of movement and motion-artefact correction on image quality and interpretability in CBCT units with aligned and lateral-offset detectors.
CONCLUSION: Motion-artefact correction systems enhanced image quality and interpretability for units with aligned detectors but were less effective for those with lateral-offset detectors. PMID: 31530012 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 20, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Imaging of root canal treatment using ultra high field 9.4T UTE-MRI - a preliminary study.
CONCLUSIONS: 9.4T UTE-MRI is suitable for visualization of root canal anatomy, the evaluation of root canal preparation and obturation with a high spatial resolution and may provide a versatile tool for dental material research in endodontics. PMID: 31530016 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 20, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Antiresorptive drug-related changes of the mandibular bone densitiy in medication-related osteonecrosis of the jaw patients.
CONCLUSION: The findings from this study suggest that that bisphosphonates change the microarchitecture of the alveolar bone by being embedded in the mandible, which may subsequently lead to a bp-specific corticalization, and a decrease in vascularization of the lower jaw. This process may be distinctive for bp-treatment and seems to induce the congestion of cancellous bone rather rapidly after the first administrations. This effect could not be determined in denosumab-treated patients. PMID: 31530019 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 20, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Radiographic changes in TMJ in relation to serology and disease activity in RA patients.
CONCLUSION: DAS28 score and disease activity are strong indicators of TMJ affection in RA patients when compared to RF and ACCP. ACCP is a better indicator of changes in condylar measurements than TMJ osteoarthritic changes. While RF is the least efficient indicator of TMJ involvement in RA patients. PMID: 31530023 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 20, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Correction to The maxillary sinus: physiology, development and imaging anatomy.
Authors: PMID: 31502867 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - September 12, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Quantitative assessment of variation in CBCT image technical parameters related to CBCT detector lateral-offset position.
CONCLUSION: Lateral-offset detectors to acquire CBCT images significantly change SDVV distribution within the field-of-view, and lead to MVVD with increased range, compared to aligned detectors. This must be taken in consideration in the clinic, if voxel-value dependent measurements are to be performed. PMID: 31469317 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - August 31, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Impact of CBCT on treatment decision related to surgical removal of impacted maxillary third molars: does CBCT change the surgical approach?
Authors: Hermann L, Wenzel A, Schropp L, Matzen LH Abstract OBJECTIVES: To assess factors influencing treatment decision for maxillary third molars referred for cone beam CT (CBCT). Parameters influencing the decision to treat and to remove either the maxillary second molar or third molar were pursued. METHODS: 111 impacted maxillary third molars, clinically examined including a panoramic image, in 86 patients (mean age 26 years, range 15-55) were referred for CBCT on suspicion of pathology/root resorption in the second molar, based on information in the panoramic image. The following parameters were assessed f...
Source: Dentomaxillofacial Radiology - August 28, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Use of fractal analysis in dental images: a systematic review.
CONCLUSIONS: FA in Dentistry has been widely applied to the study of images. Panoramic and periapical radiographs were those most frequently used. The Image J software and the box-counting method were extensively adopted in the studies reviewed herein. Further studies are encouraged to improve clarification of the parameters that directly influence FA. PMID: 31429597 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - August 21, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Optical coherence tomography imaging of oral mucosa bullous diseases: a preliminary study.
CONCLUSION: This exploratory study suggests that the OCT is able to distinguish epithelial and subepithelial layer in vivo images of healthy oral mucosa from those with bullous diseases, assisting the clinicians in differential diagnosis.The presented data are in accordance with the scientific literature, although a wider pool of cases is needed to increase statistical power. Histological examination and immunofluorescence methods remain the gold standard for the diagnosis of oral bullous diseases. In this context, the OCT can provide the clinician with a valuable aid both as an additional diagnostic tool and in the follow...
Source: Dentomaxillofacial Radiology - August 21, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Effect of micro-computed tomography reconstruction protocols on bone fractal dimension analysis.
Authors: Gaêta-Araujo H, Oliveira-Santos N, Brasil DM, do Nascimento EHL, Madlum DV, Haiter-Neto F, Oliveira-Santos C Abstract OBJECTIVES: To evaluate the influence of the level of three micro-CT reconstruction tools: beam-hardening correction (BHC), smoothing filter (SF), and ring artefact correction (RAC) on the fractal dimension (FD) analysis of trabecular bone. METHODS: Five Wistar rats' maxillae were individually scanned in a SkyScan 1174 micro-CT device, under the following settings: 50 kV, 800 µA, 10.2 µm voxel size, 0.5 mm Al filter, rotation step 0.5°, two frames average, 180°...
Source: Dentomaxillofacial Radiology - August 14, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

Estimation of contrast-to-noise ratio in CT and cbctCBCT images with varying scan settings in presence of different implant materials.
Authors: Kursun S, Demirtürk-Kocasaraç H, Bayrak S, Ustaoğlu G, Noujeim M Abstract OBJECTIVES: To assess the contrast-to-noise ratio (CNR) of four different types of dental implant materials in CT and cone beam CT (CBCT) images with varying scan settings. METHODS: Four different types of implants: zirconium (Zr), titanium (Ti) Grade 4 and 5 and titanium-zirconium (Ti-ZrO2) alloy were placed in a 3% gelatin phantom in a cylindrical plastic container and scanned with two different CT machines (GE Medical systems and Toshiba Medical Systems) and one CBCT machine (I-CAT, Imaging Sciences International)...
Source: Dentomaxillofacial Radiology - August 8, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

The use and performance of artificial intelligence applications in dental and maxillofacial radiology: A systematic review.
CONCLUSION: The AI models proposed in the studies included exhibited wide clinical applications in DMFR. Nevertheless, it is still necessary to further verify the reliability and applicability of the AI models prior to transferring these models into clinical practice. PMID: 31386555 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - August 8, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research

The maxillary sinus: physiology, development and imaging anatomy.
CONCLUSIONS: An understanding of the fundamental principles of the development, physiology, anatomy and relationships of the maxillary sinus as depicted by multi-modality imaging is essential for radiologists reporting imaging involving the paranasal sinuses and midface. PMID: 31386556 [PubMed - as supplied by publisher] (Source: Dentomaxillofacial Radiology)
Source: Dentomaxillofacial Radiology - August 8, 2019 Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research