Image quality of two solid-state and three photostimulable phosphor plate digital panoramic systems, and treatment planning of mandibular third molar removal

2003 ◽  
Vol 32 (1) ◽  
pp. 39-44 ◽  
Author(s):  
IS Benediktsdottir ◽  
H Hintze ◽  
JK Petersen ◽  
A Wenzel
Keyword(s):  
Solid State ◽  
Image Quality ◽  
Treatment Planning ◽  
Third Molar ◽  
Mandibular Third Molar ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate

scholarly journals Evaluation of the effects of processing delays and protective plastic cases on image quality of a photostimulable phosphor plate system

2008 ◽  
Vol 16 (5) ◽  
pp. 350-354 ◽  
Author(s):  
Clóvis Monteiro Bramante ◽  
Alexandre Silva Bramante ◽  
Rogério Emílio de Souza ◽  
Ivaldo Gomes Moraes ◽  
Norberti Bernardineli ◽  
...  
Keyword(s):  
Image Quality ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate ◽  
Plate System

Comparison of Efficiency and Image Quality of Photostimulable Phosphor Plate and Charge-Coupled Device Receptors in Dental Radiography

2019 ◽  
Vol 83 (10) ◽  
pp. 1205-1212
Author(s):  
Wenjian Zhang ◽  
Carolyn Huynh ◽  
Aniket Jadhav ◽  
Jose Pinales ◽  
Liliana Arvizu ◽  
...  
Keyword(s):  
Image Quality ◽  
Dental Radiography ◽  
Charge Coupled Device ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate

Influence of cone-beam computed tomography milliamperage settings on image quality of the mandibular third molar region

2013 ◽  
Vol 30 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Frederico Sampaio Neves ◽  
Thaís de Camargo Souza ◽  
Sérgio Lins de-Azevedo-Vaz ◽  
Paulo Sérgio Flores Campos ◽  
Frab Norberto Bóscolo
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Cone Beam Computed Tomography ◽  
Third Molar ◽  
Cone Beam ◽  
Mandibular Third Molar ◽  
Molar Region

Benefits of using a photostimulable phosphor plate protective device

2021 ◽  
pp. 20200339
Author(s):  
Graziela de Moura ◽  
Mariana Boessio Vizzotto ◽  
Priscila Fernanda da Silveira Tiecher ◽  
Nádia Assein Arús ◽  
Heraldo Luis Dias da Silveira
Keyword(s):  
Image Quality ◽  
Compressive Load ◽  
Control Group ◽  
Protective Device ◽  
Photostimulable Phosphor ◽  
Plate Size ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate ◽  
Post Hoc ◽  
Gray Values

Objectives: To develop and test a protective device (PD) to increase the resistance of photostimulable storage phosphor (PSP) plate to compressive load, and assess the resulting image quality. Methods: Two prototypes, polyvinylchloride sheets of 0.3 mm and 0.7 mm each, were developed for PSP plate size 2. The resistance to compressive load was tested using eight new PSPs divided into four test groups: (1) PSP, (2) PSP and paperboard protector, (3) PSP and 0.3 mm PD, and (4) PSP and 0.7 mm PD. The resulting images were analyzed by three oral radiologists, based on the consensus for image artifacts. Additionally, the objective image quality test was performed with four new PSPs, using an 8-step wedge aluminum scale. The mean gray values and standard deviation were measured in a total of 240 images, and the data were analyzed using analysis of variance with Bonferroni post-hoc test. Results: Artifacts were seen in the PSP control group starting at 40 n, and at 150 n, 175 n and 300 n in 0.3 mm PD, paperboard protector and 0.7 mm PD, respectively. Although there was no statistical difference among groups, there were differences between exposure times (0.06–0.25 s, 0.06–0.40 s, and 0.10–0.40 s). Scanning resolution of 20 lp/mm showed higher mean gray value than 25 and 40 lp/mm (p < 0.05) Conclusion: The developed PDs improved the PSP resistance to compressive forces, with low interference on the pixel gray values, regardless of exposure time and spatial resolution. Nevertheless, the 0.7 mm PD could withstand the maximum compressive load.

Subjective image quality of solid-state and photostimulable phosphor systems for digital intra-oral radiography

1999 ◽  
Vol 29 (2) ◽  
pp. 70-75 ◽  
Author(s):  
E Borg ◽  
A Attaelmanan ◽  
H-G Gröndahl
Keyword(s):  
Solid State ◽  
Image Quality ◽  
Subjective Image Quality ◽  
Photostimulable Phosphor

Improved computed radiography image quality from a BaFI:Eu photostimulable phosphor plate

2002 ◽  
Vol 29 (4) ◽  
pp. 592-597 ◽  
Author(s):  
Yasushi Nakano ◽  
Tomonori Gido ◽  
Satoshi Honda ◽  
Akihiro Maezawa ◽  
Hideaki Wakamatsu ◽  
...  
Keyword(s):  
Image Quality ◽  
Computed Radiography ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate

Dose reduction in general radiography for adult patients by use of a dual-side-reading photostimulable phosphor plate in a computed radiography system

2014 ◽  
Vol 7 (2) ◽  
pp. 310-315 ◽  
Author(s):  
Norisato Tsuda ◽  
Nobukazu Tanaka ◽  
Tsutomu Akasaka ◽  
Hidetake Yabuuchi ◽  
Junji Morishita
Keyword(s):  
Dose Reduction ◽  
Computed Radiography ◽  
Adult Patients ◽  
Radiography System ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Photostimulable Phosphor Plate

scholarly journals Submucosal administration of dexamethasone versus methyl prednisolone in management of postoperative sequelae after mandibular third molar impaction - A systematic review

2020 ◽  
Vol 11 (3) ◽  
pp. 4479-4486
Author(s):  
Janani Kandamani ◽  
Divya Sanjeevi Ramakrishnan ◽  
Sudarssan Subramaniam Gouthaman ◽  
Santhosh Kumar M P
Keyword(s):  
Sodium Succinate ◽  
Maxillofacial Surgery ◽  
Third Molar ◽  
Cochrane Library ◽  
Oral And Maxillofacial Surgery ◽  
Third Molar Extraction ◽  
Methylprednisolone Sodium Succinate ◽  
Methyl Prednisolone ◽  
Mandibular Third Molar

Third molar extraction is one of the most commonly performed minor surgical procedure in any dental practice worldwide, often accompanied by various postoperative sequelae such as swelling pain and trismus which intern affects the quality of life of a patient. Over the past few decades, different methods have been proposed in the literature and were clinically evaluated to reduce the postoperative discomfort after mandibular third molar impaction and out of which corticosteroids, have shown promising results. Dexamethasone (administered either orally, submucosally, IV or IM), methylprednisolone acetate and methylprednisolone sodium succinate (IV or IM or submucosal) are most commonly preferred corticosteroids in oral and maxillofacial surgery. The main objective is to systematically review the comparison of the effectiveness of submucosal administration of dexamethasone with methylprednisolone following mandibular third molar impaction in reducing the postoperative sequelae, and its discomfort and searches were performed in the PubMed, Medline, Scopus, and Cochrane Library databases. Two articles were most relevant, and the results of the comparison of the selected articles were analysed. From this deliberate audit, it is very well may be inferred that submucosal injection of dexamethasone plays a promising role in reducing the postoperative sequelae which includes swelling, pain and trismus and its discomfort following mandibular third molar impaction when compared with that of methylprednisolone.

scholarly journals Numerical evaluation of image parameters of ETR-1

2016 ◽  
Vol 2 (1) ◽  
pp. 489-491
Author(s):  
Shamim Ahmed ◽  
Marian Krüger ◽  
Christian Willomitzer ◽  
Golam A. Zakaria
Keyword(s):  
Image Quality ◽  
Treatment Planning ◽  
Numerical Evaluation ◽  
Numerical Estimation ◽  
Low Contrast ◽  
Precise Result ◽  
Test Tool ◽  
Naked Eye ◽  
Pre Treatment

AbstractIn this work, we developed a method to handle the image quality test-tool precisely. This test-tool is important to evaluate the quality of the medical images for pre-treatment planning phase. But the achieved images are estimated by naked eyes, which does not provide the precise result. Our main goal is to get the desired image parameters numerically. This numerical estimation overcomes the limitation of naked eye observation. Hence, it enhances the pre-treatment planning. The ETR-1 test-tool is considered here. The contrast, the low contrast details and line-pairs (lp/mm) were estimated.

scholarly journals Numerical Evaluation of Image Contrast for Thicker and Thinner Objects among Current Intraoral Digital Imaging Systems

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Oyunbat Dashpuntsag ◽  
Midori Yoshida ◽  
Ryosuke Kasai ◽  
Naoki Maeda ◽  
Hidehiko Hosoki ◽  
...  
Keyword(s):  
Digital Imaging ◽  
Imaging Systems ◽  
Diagnostic Purpose ◽  
Metallic Material ◽  
Low Contrast ◽  
Photostimulable Phosphor ◽  
Phosphor Plate ◽  
Digital Imaging Systems ◽  
Photostimulable Phosphor Plate ◽  
Small Bone

The purpose is to evaluate the performance of current intraoral digital detectors in detail using a precise phantom and new method. Two aluminum step wedges in 0.5 mm steps were exposed by two photostimulable phosphor plate (PSP) systems—one with automatic exposure compensation (AEC) and the other without AEC—and a CCD sensor. Images were obtained with 3 doses at 60 kV. The effect of metallic material also was evaluated. The contrast-to-noise ratio (CNR) for thinner steps and the low contrast value (LCV) for thicker steps were obtained. The CCD system was the best under all conditions (P<0.001), although the Gray value was sensitive to the dose, and the Gray value-dose relation varied greatly. The PSP system with AEC was superior to that without AEC for the LCV (P<0.001) but was inferior to it regarding the CNR (P<0.001). CNR and LCV in the PSP system without AEC were not affected by the metallic plate. Intraoral digital imaging systems should be chosen according to their diagnostic purpose. PSP system with AEC may be the best for detecting molar proximal caries, whereas the PSP system without AEC may be better for evaluating small bone regeneration in periodontal disease. The CCD system provided the best performance.

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