Perception of Pain With Bitewing, DIAGNOcam, and Teeth Separation Amongst Children

BACKGROUND

This study evaluated the pain and discomfort associated with 3 diagnostic techniques for proximal carious lesions in children aged 5 to 8 years: bitewing (BW) radiographs, DIAGNOcam, and temporary teeth separation.

METHODS

The study included 60 healthy children between the ages of 5 and 8 years who had no prior history of dry mouth or mouth breathing, were definitely positive or positive based on Frankl Behavioral Rating Scale, had at least one pair of matched bilateral primary molars and/or permanent first molars in close contact with the adjacent tooth, and were free of restorations and frank cavitation. Each patient evaluated all 3 techniques. The pain and discomfort ratings were obtained by the Wong-Baker FACES Pain Rating Scale immediately after taking 2 standardised BW radiographs or undergoing use of DIAGNOcam and 2 days after temporary teeth separation with elastic separators by a single trained and experienced paediatric dentist.

RESULTS

The DIAGNOcam procedure resulted in much higher pain and discomfort (3.69 ± 3.10) than the other 2 diagnostic techniques. Within-participant pain and discomfort scored significantly higher with DIAGNOcam compared to BW radiographs (P < .001) and temporary teeth separation (P = .002).

CONCLUSIONS

The DIAGNOcam diagnostic technique caused much more pain and discomfort than BW radiographs and temporary teeth separation using orthodontic elastic separators. The report is part of a randomised clinical trial that was registered at www.

CLINICALTRIALS

gov under the identifier NCT03685058.

Effect of resin composite shade on digital fiber-optic transillumination imaging in vitro

Digital imaging fiber-optic transillumination (DIFOTI) devices have been used to detect caries, a technique without using X-rays. However, the effects of resin composites (RCs) shades on the images acquired with DIFOTI devices have not been investigated. Thus, this study aimed to elucidate the influence of RC shade on the images obtained with DIFOTI technique. Three shades (A1, A3, and Opaque) for each of four flowable RCs were filled on a cavity prepared in a left mandibular first premolar obtained from a donated body. Then, transmission images with a DIFOTI device (DIAGNOcam; KaVo, Biberach, Germany) were acquired, and the average lightness values of the images in the RC and enamel were used to calculate differences between those areas. To clarify the influence of the optical translucency and color on DIFOTI images, the color parameters (L*, a* and b*) of each RC were obtained with black and white backgrounds. The color differences between the backgrounds were calculated as transparency parameter (TP) values. The number of repetitions was set to 10. Differences in the lightness value of the shades varied in each RC. The difference in lightness was significantly associated with the TP value and color parameters of L* (p < 0.01), with negative (R = - 0.81) and positive (R = 0.84) correlations, respectively. In conclusion, DIFOTI images of RCs with high optical translucency resembled those of the natural tooth structure.

In vivo correlation of near-infrared transillumination and visual inspection with bitewing radiography for the detection of interproximal caries in permanent and primary teeth

PURPOSE

To evaluate near-infrared light transillumination (NILT) for interproximal caries detection in children by comparing the correlation between both NILT and visual inspection (ICDAS) with bitewing (BW) radiography and by investigating possible differences in caries detection with NILT between primary and permanent teeth.

METHODS

From 35 patients, 121 and 63 interproximal surfaces in, respectively, primary and permanent teeth were included. NILT images were obtained using DIAGNOcam™ (KaVo) and scored by two calibrated raters. A consensus diagnosis was reached for BW radiography; whereas, the ICDAS scores were obtained by one calibrated rater. Weighted Kappa (wκ) was used to evaluate inter- and intra-rater reliability of NILT and to evaluate the correlation between NILT, ICDAS and BW radiography.

RESULTS

The correlation between NILT and BW radiography was moderate to substantial for primary teeth [Rater 1: wκ = 0.61 (95% CI = 0.49-0.75), Rater 2: wκ = 0.55 (95% CI = 0.41-0.69)] and fair for permanent teeth [Rater 1: wκ = 0.34 (95% CI = 0.15-0.53), Rater 2: wκ = 0.33 (95% CI = 0.08-0.58)]. The correlation between ICDAS and BW radiography was moderate for primary teeth [wκ = 0.49 (95% CI = 0.35-0.63)] and substantial for permanent teeth [wκ = 0.62 (95% CI = 0.32-0.92)]. No significant differences were found between primary and permanent teeth.

CONCLUSION

NILT cannot be recommended as a single diagnostic tool for interproximal caries detection in primary teeth. The number of false negatives for dentine caries, especially in first primary molars, was too high. For the use in permanent teeth, NILT could be more accurate than BW radiography.

Effect of resin composite filler on digital imaging fiber-optic transillumination

Using a trans-illumination device that applies digital imaging fiber-optic transillumination (DIFOTI) technology, which involves the use of transmitted near-infrared laser light for inspection, the effect of composite resin (CR) restoration of a tooth on caries detection was evaluated. A cavity was formed in a tooth of the lower jaw cut from the specimen, experimental CRs with various filler rates were filled, and the influence of the filler on the obtained image was investigated. On the near-infrared images, the lightness differences between the CR-restored portion and the tooth portion were measured. The translucency parameter (TP) value and the correlation between the lightness differences and TP value of the CRs were investigated. The experimental results showed that the greater rate of macro-filler is, the lighter image and larger TP value. In other words, CR with hybrid filler to increase the TP value is less likely to affect caries detection by DIFOTI.