A comparison of 18 different x-ray detectors currently used in dentistry

Farman, Allan G.; Farman, Taeko T.

doi:10.1016/j.tripleo.2004.04.002

Cited by 140 publications

(80 citation statements)

References 2 publications

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“…Digital imaging systems have been widely used in Dental Radiology, which, in view of the few studies evaluating radiopacity of these biomaterials in the early stages of bone regeneration, motivated the development of this research. Furthermore, these systems show similar patterns when expressing variation in relation to the thickness of the material evaluated 13 . They can be used not only as a tool for assessing cases of fractures, but also to evaluate procedures that involve bone repair and regeneration 14 , meeting the objective proposed in the present study.…”

Section: Analysis Of Optical Density Within Groupsmentioning

confidence: 82%

Evaluation of optical density of bone defects filled with calcium phosphate cement and bioactive glass in rats

et al. 2011

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Purpose: To evaluate new bone formation, by the analysis of optical density, in rat femoral defects filled with calcium phosphate cement (CPC) and bioactive glass (BG). Methods: Twenty-one rats were divided into three groups, Group I (CPC), Group II (BG), and Group III (control), and assessed after 7, 15, and 30 days. Three bone cavities were made in the left femur and filled with CPC, BG, and no material (control). Digital images were obtained and the results were subjected to statistical analysis of variance (ANOVA), complemented by the Friedman and Kruskal-Wallis nonparametric tests, with a significance level of 5%. Results: Regarding optical density, Group I showed statistical values significantly higher than Group III and also higher, although not statistically significant, than Group II, in all observation periods. When Groups II and III were compared, Group II showed higher optical density values, without statistically significant differences, in all periods. Conclusion: The biomaterials analyzed showed higher optical density in relation to the control group in all observation periods, calcium phosphate cement being the best option in the repair of bone defects, but without statistically significant differences in relation to bioactive glass.

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Section: Analysis Of Optical Density Within Groupsmentioning

confidence: 82%

Evaluation of optical density of bone defects filled with calcium phosphate cement and bioactive glass in rats

et al. 2011

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“…Solid state detectors use a scintillator layer to convert x-rays to light and include a charge-coupled device or a complementary metal oxide semiconductor. [4][5][6][7] PSPs absorb and store energy from x-rays. This energy is then released as phosphorescent when stimulated by another light of an appropriate wavelength.…”

Section: Introductionmentioning

confidence: 99%

Visibility of Artificial Buccal Recurrent Caries Under Restorations Using Different Radiographic Techniques

Murat

Kamburoğlu

Isayev

et al. 2013

Operative Dentistry

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Considering the difficulties in detecting buccal recurrent caries under restorations due to the compression of structures in intraoral radiography and occurrence of metal artifacts in cone beam computed tomography (CBCT), it is clinically useful to assess the performance of intraoral film and digital radiography and two different CBCT systems in terms of the visibility of artificial buccal secondary caries lesions under various restorative materials. SUMMARYThe aim of the present study was to assess intraoral images and two cone beam computed tomography (CBCT) systems for detection of artificial buccal recurrent caries under restorations. Class V cavities were made for composite (30 teeth) and amalgam (30 teeth). Full restorations with thermoplastic polymer (30 teeth) and nickel-chromium metal crown (30 teeth) were constructed. In 60 teeth, artificial buccal recurrent caries were simulated; 60 other teeth served as controls. Intraoral film, intraoral digital, Veraviewepocs 3D, and Kodak 9000 images were scored twice. j Coefficients were calculated and Az values were compared using Z-tests, with a significance level of a=0.05. Higher interobserver agreement was obtained from the CBCT images compared with the intraoral images. The Az values of both readings of all three observers were highest for the Veraviewepocs 3D followed by Kodak 9000 except for the second reading of the third observer. CBCT outperformed intraoral radiography in detection of artificial buccal recurrent caries under restorations.

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“…It must be remembered that technology may also be the limiting factor for any imaging technique. Signals may be received and converted to digital images but the monitor they are viewed on may not resolve adequately, with loss of diagnostic information 54 . The format the images are stored in may lead to loss of data, as well.…”

Section: Discussionmentioning

confidence: 99%