Panoramic teeth example for cdr dicom software#

The teeth remained immersed in distilled water until use. Nine extracted human teeth with intact crowns were divided into three groups: canines ( ), premolars ( ), and molars ( ). Informed consent was obtained from all patients for being included in the study. All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. This study was approved by the Human Research Ethics Committee of the MaranhГЈo University Center (Brazil) under process number 00750/10. The aim of the present study was to compare the sensitivity and specificity of three digital radiographic systems for the diagnosis of proximal carious lesions diferente degrees of carious lesions. A number of digital systems are currently available for use in dentistry and it is necessary to evaluate the ability of these systems regarding caries detection, especially lesions in the early stage of development. Moreover, the ability to manipulate the image increases the chance of diagnosing caries. A digital system allows linear and angular measures on the image as well as the adjustment of brightness and contrast, amplification, the application of color, and the correction (within limits) of overexposure or underexposure.

Panoramic teeth example for cdr dicom software#

Дigital radiographs have become a viable alternative to conventional radiographs due to the ease in acquiring, storing, transmitting, and manipulating the image through the use of different software programs. This method also allows estimating the depth and monitoring the behavior of cavities and is indispensable to the detection of small carious lesions located in the proximal region. The bitewing X-ray is more sensitive than a clinical inspection for the detection of proximal and occlusal carious lesions on dentin. ДЄ number of diagnostic methods are currently used for the diagnosis of carious lesions, such as fiber optic transillumination, contrast dyes, and the combination of continuous clinical and radiographic examinations. Thus, early diagnosis is of fundamental importance to the establishment of preventive measures that seek to avoid the need for curative treatment. In the early stages, carious lesions can be controlled with noninvasive treatment. This condition is the localized decay of mineralized dental tissues due to the action of bacteria. IntroductionДental caries has a multifactor etiology and is one of the main oral health problems worldwide. The systems demonstrated low sensitivity and specificity for the diagnosis of demineralized areas.

The most correct diagnoses were achieved using the Schick digital system on premolars and evaluated by specialists in radiology. Sensitivity and specificity were 0.64 and 0.47 (Schick), 0.56 and 0.50 (Sirona), and 0.48 and 0.58 (Kodak).

No significant differences were found among the different systems, raters, or teeth ( ). Sensitivity and specificity regarding demineralized areas were calculated for each system. The chi-squared test was used to determine the frequency of correct diagnoses among the different systems, raters, teeth, and types of lesion. Bitewing radiographs were obtained from each system (Sirona, Kodak, and Schick) and evaluated by 12 raters (4 dental students, 4 radiology specialists, and 4 dentists). Extracted human teeth (3 canines, 3 premolars, and 3 molars) were submitted to one of three types of proximal lesions (demineralized area, cavity affecting the enamel alone, and cavity affecting enamel and dentin). The study aimed to compare the sensitivity and specificity of digital radiographic systems for the diagnosis of proximal carious lesions.