scholarly journals In‐vitro validation of near‐infrared reflection for proximal caries detection

2019 ◽  
Vol 127 (6) ◽  
pp. 515-522 ◽  
Author(s):  
Alexander Lederer ◽  
Karl‐Heinz Kunzelmann ◽  
Katrin Heck ◽  
Reinhard Hickel ◽  
Friederike Litzenburger
2018 ◽  
Vol 97 (7) ◽  
pp. 844-849 ◽  
Author(s):  
A. Lederer ◽  
K.H. Kunzelmann ◽  
R. Hickel ◽  
F. Litzenburger

The purpose of this study was to develop an in vitro model for the validation of near-infrared transillumination (NIRT) for proximal caries detection, to enhance NIRT with high-dynamic-range imaging (HDRI), and to compare both methods, using micro-computed tomography (µCT) as a reference standard. Both proximal surfaces of 53 healthy or decayed permanent human teeth were examined using the Diagnocam (DC) (KaVo) and NIRT with HDRI (NIRT-HDRI). NIRT was combined with HDRI to improve the diagnostic performance by reducing under- and overexposed image areas. For NIRT-HDRI, an exposure series was captured and merged into a single HDR image. A classification was applied according to lesion depth. All surfaces were assessed twice by 2 trained examiners, and additionally with µCT for validation. The Kappa statistic was used to calculate inter-rater reliability and agreement between DC and NIRT-HDRI. Inter-rater reliability (weighted Kappa, wκ) showed very good agreement for the DC (0.90) and NIRT-HDRI (0.96). The overall agreement (wκ) was almost perfect (0.85). In the individual categories (0 to 4), the agreement (simple Kappa) ranged from almost perfect (category 4) to moderate (1 and 2) to substantial (categories 0 and 3). Sensitivity and specificity of sound surfaces, enamel, and dentin caries ranged from 0.57 to 0.99 and were similar for both methods in the different categories. NIRT-HDRI had a higher sensitivity for sound surfaces and enamel caries, as well as a higher specificity for dentin caries. Regarding the obtained images, HDRI allowed for the detection of caries within a greater range of luminance levels, resulting in a more detailed visualization of structures without under- or overexposure. However, HDRI this did not improve the diagnostics significantly. Distinguishing between a processed demineralized enamel and dentin lesions appears to be a problem specific to NIRT and cannot be balanced using HDRI.


2018 ◽  
pp. 20170292 ◽  
Author(s):  
Friederike Litzenburger ◽  
Katrin Heck ◽  
Vinay Pitchika ◽  
Klaus W Neuhaus ◽  
Fabian N Jost ◽  
...  

2020 ◽  
Vol 32 (4) ◽  
pp. 187-193
Author(s):  
Ayşe Dündar ◽  
Mehmet Ertuğrul Çiftçi ◽  
Özlem İşman ◽  
Ali Murat Aktan

2020 ◽  
Vol 4 ◽  
pp. 100025
Author(s):  
Eirini Stratigaki ◽  
Fabian N. Jost ◽  
Jan Kühnisch ◽  
Friederike Litzenburger ◽  
Adrian Lussi ◽  
...  

2015 ◽  
Vol 7 (4) ◽  
pp. 383-390 ◽  
Author(s):  
Janja Jan ◽  
Wan Zaripah Wan Bakar ◽  
Sapna M. Mathews ◽  
Linda O. Okoye ◽  
Benjamin R. Ehler ◽  
...  

Author(s):  
Sajitha M. Kalathingal ◽  
André Mol ◽  
Donald A. Tyndall ◽  
Daniel J. Caplan ◽  
Chapel Hill

Author(s):  
Friederike Litzenburger ◽  
Katrin Heck ◽  
Dalia Kaisarly ◽  
Karl-Heinz Kunzelmann

Abstract Objectives This in vitro study analysed potential of early proximal caries detection using 3D range data of teeth consisting of near-infrared reflection images at 850 nm (NIRR). Materials and methods Two hundred fifty healthy and carious permanent human teeth were arranged pairwise, examined with bitewing radiography (BWR) and NIRR and validated with micro-computed tomography. NIRR findings were evaluated from buccal, lingual and occlusal (trilateral) views according to yes/no decisions about presence of caries. Reliability assessments included kappa statistics and revealed high agreement for both methods. Statistical analysis included cross tabulation and calculation of sensitivity, specificity and AUC. Results Underestimation of caries was 24.8% for NIRR and 26.4% for BWR. Overestimation was 10.4% for occlusal NIRR and 0% for BWR. Trilateral NIRR had overall accuracy of 64.8%, overestimation of 15.6% and underestimation of 19.6%. NIRR and BWR showed high specificity and low sensitivity for proximal caries detection. Conclusions NIRR achieved diagnostic results comparable to BWR. Trilateral NIRR assessments overestimated presence of proximal caries, revealing stronger sensitivity for initial caries detection than BWR. Clinical relevance NIRR provided valid complement to BWR as diagnostic instrument. Investigation from multiple angles did not substantially improve proximal caries detection with NIRR.


2021 ◽  
pp. 103841
Author(s):  
Stavroula Michou ◽  
Christoph Vannahme ◽  
Azam Bakhshandeh ◽  
Kim R. Ekstrand ◽  
Ana R. Benetti

Author(s):  
Seiedeh Tahereh Mohtavipour ◽  
Fatemeh Shahsavari ◽  
Alieh Sadat Javadzadeh Haghighat ◽  
Seiedeh Saeideh Mohtavipour ◽  
Milad Malekshoar ◽  
...  

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