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Objectives <p>To assess the influence of a handheld X-ray unit in the diagnosis of proximal caries lesions using different digital systems by comparing with a wall-mounted unit.</p> Methods <p>Radiographs of 40 human teeth were acquired using the Eagle X-ray handheld unit (Alliage, São Paulo, Brazil) set at 2.5&#xa0;mA, 60 kVp and an exposure time of 0.45&#xa0;s. Then, new radiographs of the teeth were acquired using the Focus X-ray wall-mounted unit (Instrumentarium, Tuusula, Finland) set at 7&#xa0;mA, 60 kVp, and exposure time of 0.16&#xa0;s. Three digital systems were used: a photostimulable phosphor plate receptor (Express system) and two complementary metal oxide semiconductor sensors (Digora Toto and SnapShot systems). Five oral and maxillofacial radiologists individually assessed the radiographs. Area under the receiver-operating characteristic curve (AUC), sensitivity, and specificity were calculated from the responses of the examiners and compared using Analysis of Variance at a significance level of 5%. The weighted Kappa index evaluated the intra- and inter-examiner agreements for caries lesions diagnosis.</p> Results <p>The handheld X-ray unit did not influence on the diagnostic metrics for the three digital systems used when compared with the wall-mounted unit <i>(p</i> &gt; <i>0.05)</i>. The SnapShot showed higher AUC value than Digora Toto <i>(p</i> &lt; <i>0.05)</i>. The mean values of intra- and inter-examiner agreements were 0.654 (substantial) and 0.365 (fair), respectively.</p> Conclusions <p>The diagnostic accuracy for detecting proximal caries lesions is not influenced by the use of a handheld X-ray unit, regardless of the digital system used.</p>

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Influence of a handheld X-ray unit in the diagnosis of proximal caries lesions using different digital systems

  • 期刊论文

  • 发表日期：

    2025年1月21日

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  • Débora Costa Ruiz,
  • Rocharles Cavalcante Fontenele,
  • Hugo Gaêta-Araujo,
  • Amanda Farias-Gomes,
  • Matheus L. Oliveira,
  • Deborah Queiroz Freitas,
  • Francisco Haiter-Neto

摘要

Objectives

To assess the influence of a handheld X-ray unit in the diagnosis of proximal caries lesions using different digital systems by comparing with a wall-mounted unit.

Methods

Radiographs of 40 human teeth were acquired using the Eagle X-ray handheld unit (Alliage, São Paulo, Brazil) set at 2.5 mA, 60 kVp and an exposure time of 0.45 s. Then, new radiographs of the teeth were acquired using the Focus X-ray wall-mounted unit (Instrumentarium, Tuusula, Finland) set at 7 mA, 60 kVp, and exposure time of 0.16 s. Three digital systems were used: a photostimulable phosphor plate receptor (Express system) and two complementary metal oxide semiconductor sensors (Digora Toto and SnapShot systems). Five oral and maxillofacial radiologists individually assessed the radiographs. Area under the receiver-operating characteristic curve (AUC), sensitivity, and specificity were calculated from the responses of the examiners and compared using Analysis of Variance at a significance level of 5%. The weighted Kappa index evaluated the intra- and inter-examiner agreements for caries lesions diagnosis.

Results

The handheld X-ray unit did not influence on the diagnostic metrics for the three digital systems used when compared with the wall-mounted unit (p > 0.05). The SnapShot showed higher AUC value than Digora Toto (p < 0.05). The mean values of intra- and inter-examiner agreements were 0.654 (substantial) and 0.365 (fair), respectively.

Conclusions

The diagnostic accuracy for detecting proximal caries lesions is not influenced by the use of a handheld X-ray unit, regardless of the digital system used.