ArticleScientific reports2025
Diagnostic accuracy of Transmitted-light plethysmography for the assessment of pulpal circulation in traumatized young permanent incisors.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Transmitted light plethysmography (TLP) is a noninvasive, objective optical method used to assess dental pulp circulation and evaluate pulp vitality. This study aimed to develop a quantitative diagnostic approach for TLP and assess its accuracy through cross-correlation analysis of plethysmographic signals obtained from both the tooth and the finger. A total of 131 maxillary incisors from 97 pediatric patients (aged 6-17 years) were categorized into three groups: nontraumatized teeth, traumatized vital teeth, and traumatized nonvital teeth. Standard diagnostic procedures, including assessments for discoloration, percussion sensitivity, periapical translucency, and electric pulp testing (EPT), were performed alongside TLP evaluation, 3 to 18 months following dental trauma. Tooth plethysmograms were acquired using a 525 nm light-emitting diode directed through the examined teeth, while simultaneous finger plethysmograms were recorded as reference signals. Cross-correlation coefficients (R-values; 0 < R < 1) were calculated between the tooth and finger signals for each tooth, and diagnostic cutoff thresholds were determined using receiver operating characteristic (ROC) curve analysis based on the maximum Youden index. Statistically significant differences in R-values were observed among the three groups. The optimal diagnostic cutoff was identified as 0.40 (95% confidence interval: 0.38-0.45), at which TLP demonstrated a sensitivity of 0.94 and a specificity of 0.88, outperforming EPT. Logistic regression analysis incorporating all pulp testing methods revealed a significant association with pulp vitality status. Furthermore, the area under the ROC curve (AUC) for TLP combined with standard tests was significantly greater than that of any individual model. These results indicate that TLP offers improved diagnostic precision for identifying nonvital pulp and may serve as a valuable adjunct to conventional pulp vitality assessments.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.