Vieira Mayana Soares, Nogueira Caroline Parente Ribeiro, Silva Marcos André dos Santos, Bauer José Roberto de Oliveira, Maia Filho Etevaldo Matos
University Ceuma, Rua Josué Montello No 1, Renascença II, 65075-120 São Luís, MA, Brazil.
School of Dentistry, Federal University of Maranhão, Avenida dos Portugueses, 1966 Bacanga, 65080-805 São Luís, MA, Brazil.
ScientificWorldJournal. 2015;2015:631508. doi: 10.1155/2015/631508. Epub 2015 Jan 27.
The study aimed to compare the sensitivity and specificity of digital radiographic systems for the diagnosis of proximal carious lesions. 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). 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). The chi-squared test was used to determine the frequency of correct diagnoses among the different systems, raters, teeth, and types of lesion. Sensitivity and specificity regarding demineralized areas were calculated for each system. The frequencies of correct diagnoses were found: Schick (70.8%), Kodak (63.9%), Sirona (59.0%), specialists (69.4%), students (62.5%), dentists (61.8%), premolars (70.1%), canines (65.3%), and molars (58.3%). No significant differences were found among the different systems, raters, or teeth (P > 0.05). Sensitivity and specificity were 0.64 and 0.47 (Schick), 0.56 and 0.50 (Sirona), and 0.48 and 0.58 (Kodak). The most correct diagnoses were achieved using the Schick digital system on premolars and evaluated by specialists in radiology. The systems demonstrated low sensitivity and specificity for the diagnosis of demineralized areas.
该研究旨在比较数字射线照相系统对近端龋损诊断的敏感性和特异性。将拔除的人牙（3颗尖牙、3颗前磨牙和3颗磨牙）制成三种类型的近端病变之一（脱矿区域、仅累及釉质的龋洞以及累及釉质和牙本质的龋洞）。从每个系统（西诺德、柯达和施克）获取咬合翼片并由12名评估者（4名牙科学生、4名放射科专家和4名牙医）进行评估。采用卡方检验来确定不同系统、评估者、牙齿和病变类型中正确诊断的频率。计算每个系统对于脱矿区域的敏感性和特异性。发现正确诊断的频率如下：施克（70.8%）、柯达（63.9%）、西诺德（59.0%）、专家（69.4%）、学生（62.5%）、牙医（61.8%）、前磨牙（70.1%）、尖牙（65.3%）和磨牙（58.3%）。在不同系统、评估者或牙齿之间未发现显著差异（P>0.05）。敏感性和特异性分别为：施克（0.64和0.47）、西诺德（0.56和0.50）、柯达（0.48和0.58）。使用施克数字系统对前磨牙进行检查并由放射科专家评估时，正确诊断最多。这些系统对脱矿区域的诊断显示出较低的敏感性和特异性。
