scholarly journals Dye-enhanced laser fluorescence detection on natural caries lesions in primary teeth

2015 ◽  
Vol 21 (3) ◽  
pp. 145
Author(s):  
Fausto Medeiros Mendes ◽  
Victor Moreira Leamari ◽  
Márcia Turolla Wanderley ◽  
Mariana Minatel Braga ◽  
Juliana Mattos-Silveira ◽  
...  
Keyword(s):  
Primary Teeth ◽  
Fluorescent Dyes ◽  
Protoporphyrin Ix ◽  
Polarized Light ◽  
Laser Fluorescence ◽  
Primary Molars ◽  
Smooth Surfaces ◽  
Occlusal Caries ◽  
Occlusal Surfaces ◽  
Caries Lesions

Objective: This study aimed to investigate the association of two fluorescent dyes and Laser Fluorescence (LF) device in detecting smooth and occlusal natural caries in primary teeth in vitro.Methods: Measurements were performed with the LF and with LF associated with tetrakis (N-methylpyridyl)porphyrin (LF TMPyP) and protoporphyrin IX (LF PPIX) in 72 smooth (63 primary molars) and 134 occlusal sites (81 primary molars). For validation, surfaces were sectioned and sections obtained were evaluated under stereomicroscope. Smooth surfaces were also evaluated using polarized light microscopy and Knoop microhardness. For both smooth and occlusal surfaces, ROC analyses were performed, and sensitivities, specificities and accuracies were assessed. In smooth surfaces, Pearson’s correlation coefficients between LF values and lesions hardness or lesions depth were calculated.Results: LF TMPyP presented higher correlation with hardness and lesion depth than other methods in smooth surfaces. No differences were observed in other parameters among the methods, in both smooth and occlusal surfaces.Relevance: The LF TMPyP might improve performance in quantifying smooth-surface caries lesions in primary teeth. However, the sensitivity is improved at D2 (caries extending into inner half of the enamel but not to amelodentinal junction) threshold when using PPIX in smooth caries lesions. The association of LF with fluorescent dyes does not improve the performance on occlusal caries.

The influence of pvc seal wrap and probe tips autoclaving on the in vitro performance of laser fluorescence device in occlusal caries in primary teeth

2006 ◽  
Vol 30 (4) ◽  
pp. 306-309 ◽  
Author(s):  
Renata Maciel e Rocha Cabral ◽  
Fausto Medeiros Mendes ◽  
José Nicolau ◽  
Denise Maria Zezell
Keyword(s):  
Clinical Significance ◽  
Clinical Setting ◽  
Primary Teeth ◽  
Laser Fluorescence ◽  
Occlusal Caries ◽  
Caries Lesions ◽  
In Vitro Performance

The goal of this study was to evaluate the influence of a PVC Seal Wrap as barrier protection and the influence of autoclaving on the in vitro performance of a laser fluorescence device in detecting occlusal caries lesions in primary teeth. The clinical significance of the experiment is to create a protocol to avoid the possibility of underestimating caries in clinical setting.

Influence of cross-infection control methods on performance of pen-type laser fluorescence in detecting occlusal caries lesions in primary teeth

2012 ◽  
Vol 28 (1) ◽  
pp. 185-192 ◽  
Author(s):  
Ronilza Matos ◽  
Tatiane Fernandes Novaes ◽  
Alessandra Reyes ◽  
Monique Saveriano De Benedetto ◽  
Fausto Medeiros Mendes ◽  
...  
Keyword(s):  
Infection Control ◽  
Primary Teeth ◽  
Cross Infection ◽  
Laser Fluorescence ◽  
Control Methods ◽  
Occlusal Caries ◽  
Caries Lesions

scholarly journals Detection of Non-Cavitated Occlusal Caries with Impedance Spectroscopy and Laser Fluorescence: an In Vitro Study

2014 ◽  
Vol 8 (1) ◽  
pp. 28-32 ◽  
Author(s):  
Diana Mortensen ◽  
Katrine Dannemand ◽  
Svante Twetman ◽  
Mette Kirstine Keller
Keyword(s):  
Impedance Spectroscopy ◽  
Laser Fluorescence ◽  
In Vivo Studies ◽  
Permanent Teeth ◽  
Occlusal Caries ◽  
Posterior Teeth ◽  
Diagnodent Pen ◽  
Occlusal Surfaces ◽  
Caries Lesions

Objective: To evaluate the performance of an impedance spectroscopy technology for detecting non-cavitated occlusal caries lesions in permanent teeth in vitro. The method was compared with a commonly used laser fluorescence device and validated against histology. Material and Methodology: A non-cavitated sample of 100 extracted posterior teeth was randomly selected and assessed for caries on enamel and dentin level with aid of CarioScan PRO (ACIS) and DIAGNOdent pen (LF pen) by three examiners. After the measurements, the extension of the lesion was histologically determined as gold standard. Sensitivity, specificity, accuracy and receiver-operating curves were calculated. Intra- and inter-examiner reproducibility was expressed by intra class correlation coefficients. Results: The histological caries prevalence was 99% and 41% exhibited dentin caries. The ACIS technique displayed high specificities but almost negligible sensitivities at readings >50. A similar pattern was noted for the LF pen at readings >30. The intra- and inter-examiner reproducibility varied between 0.47 and 0.98 and the values were generally lower for the ACIS technique than for the LF pen. The inter-examiner agreement reached excellent levels with both methods. Conclusions: In vitro, the ACIS technique showed a low ability to disclose occlusal caries lesions in the enamel and/or dentin of non-cavitated permanent molars. However, further in vivo studies of permanent occlusal surfaces are needed to mirror the clinical situation.

Sealant versus Fluoride in Primary Molars of Kindergarten Children Regularly Receiving Fluoride Varnish: One-Year Randomized Clinical Trial Follow-Up

2015 ◽  
Vol 49 (4) ◽  
pp. 458-466 ◽  
Author(s):  
Sisko Honkala ◽  
Mohamed ElSalhy ◽  
Maddi Shyama ◽  
Sabiha A. Al-Mutawa ◽  
Hanan Boodai ◽  
...  
Keyword(s):  
Retention Rate ◽  
First Grade ◽  
Assessment System ◽  
Fluoride Varnish ◽  
Caries Detection ◽  
Primary Molars ◽  
Occlusal Caries ◽  
Occlusal Surfaces ◽  
Caries Lesions

Objectives: The objectives of this study were to measure the caries preventive effect of sealants applied to occlusal surfaces of primary molars compared to fluoride varnish applications, and to assess the retention rate of sealants after 1 year. Methods: 147 first-grade pupils from two kindergarten schools in Kuwait, whose parents gave their written consent, were included. The children were examined by one dentist using the International Caries Detection and Assessment System. After the examination, sealants and fluoride varnish were applied on the selected occlusal surfaces of primary molars by another dentist. The jaw quadrant for intervention was selected randomly; molars on the contralateral side of the mouth received the contralateral intervention. Examinations and intervention were provided on the school premises in the mobile dental unit with a portable spotlight. Moisture was controlled by cotton rolls, suction and air drying. The follow-up examinations were conducted after 1 year. All children received fluoride varnish before and 6 months after the intervention. Results: From 267 matched pairs of occlusal surfaces of primary molars, varnished surfaces were significantly more likely to develop new caries lesions than the sealed ones (odds ratio = 2.92; 95% confidence interval = 1.82-4.71) during the 1-year follow-up. The majority (73.0%) of the sealants were completely retained and 15.1% partially. Conclusions: Sealing fissures seems to be better in preventing occlusal caries lesions in primary molars than applying only fluoride varnish. After 1 year, the majority of sealants were retained sound.

Comparing the reliability of a new fluorescence camera with conventional laser fluorescence devices in detecting caries lesions in occlusal and smooth surfaces of primary teeth

2010 ◽  
Vol 26 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Monique Saveriano De Benedetto ◽  
Caroline Carvalho Morais ◽  
Tatiane Fernandes Novaes ◽  
Jonas de Almeida Rodrigues ◽  
Mariana Minatel Braga ◽  
...  
Keyword(s):  
Primary Teeth ◽  
Laser Fluorescence ◽  
Smooth Surfaces ◽  
Fluorescence Camera ◽  
Caries Lesions ◽  
Conventional Laser

scholarly journals How combining different caries lesions characteristics may be helpful in short-term caries progression prediction: model development on occlusal surfaces of primary teeth

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Isabela Floriano ◽  
Elizabeth Souza Rocha ◽  
Ronilza Matos ◽  
Juliana Mattos-Silveira ◽  
Kim Rud Ekstrand ◽  
...  
Keyword(s):  
Goodness Of Fit ◽  
Primary Teeth ◽  
Clinical Parameters ◽  
Short Term ◽  
Caries Lesion ◽  
Occlusal Surfaces ◽  
Caries Progression ◽  
One Year ◽  
Caries Lesions ◽  
Cavitated Lesions

Abstract Background Few studies have addressed the clinical parameters' predictive power related to caries lesion associated with their progression. This study assessed the predictive validity and proposed simplified models to predict short-term caries progression using clinical parameters related to caries lesion activity status. Methods The occlusal surfaces of primary molars, presenting no frank cavitation, were examined according to the following clinical predictors: colour, luster, cavitation, texture, and clinical depth. After one year, children were re-evaluated using the International Caries Detection and Assessment System to assess caries lesion progression. Progression was set as the outcome to be predicted. Univariate multilevel Poisson models were fitted to test each of the independent variables (clinical features) as predictors of short-term caries progression. The multimodel inference was made based on the Akaike Information Criteria and C statistic. Afterwards, plausible interactions among some of the variables were tested in the models to evaluate the benefit of combining these variables when assessing caries lesions. Results 205 children (750 surfaces) presented no frank cavitations at the baseline. After one year, 147 children were reassessed (70%). Finally, 128 children (733 surfaces) presented complete baseline data and had included primary teeth to be reassessed. Approximately 9% of the reassessed surfaces showed caries progression. Among the univariate models created with each one of these variables, the model containing the surface integrity as a predictor had the lowest AIC (364.5). Univariate predictive models tended to present better goodness-of-fit (AICs < 388) and discrimination (C:0.959–0.966) than those combining parameters (AIC:365–393, C:0.958–0.961). When only non-cavitated surfaces were considered, roughness compounded the model that better predicted the lesions' progression (AIC = 217.7, C:0.91). Conclusions Univariate model fitted considering the presence of cavitation show the best predictive goodness-of-fit and discrimination. For non-cavitated lesions, the simplest way to predict those lesions that tend to progress is by assessing enamel roughness. In general, the evaluation of other conjoint parameters seems unnecessary for all non-frankly cavitated lesions.

scholarly journals The Performance of ICDAS-II Using Low-Powered Magnification with Light-Emitting Diode Headlight and Alternating Current Impedance Spectroscopy Device for Detection of Occlusal Caries on Primary Molars

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Timucin Ari ◽  
Nilgun Ari
Keyword(s):  
Impedance Spectroscopy ◽  
Light Emitting Diode ◽  
Clinical Diagnostics ◽  
Caries Detection ◽  
Primary Molars ◽  
Occlusal Caries ◽  
Light Emitting ◽  
Occlusal Surfaces ◽  
Icdas Ii

Early detection of occlusal caries in children is challenging for the dentists, because of the morphology of pit and fissures. The aim of this study was to compare in vitro the diagnostic performance of low-powered magnification with light-emitting diode headlight (LPMLED) using ICDAS-II criteria and AC Impedance Spectroscopy (ACIS) device, on occlusal surfaces of primary molars. The occlusal surfaces of 18 extracted primary molars were examined blindly by two examiners. The teeth were sectioned and examined under light microscopy using Downer’s histological criteria as gold standard. Good to excellent inter- and intraexaminer reproducibility, higher sensitivity, specificity, and AUC values were achieved by LPMLED at D1 threshold. Also the relationship between histology and LPMLED was statistically significant. In conclusion visual aids have the potential to improve the performance of early caries detection and clinical diagnostics in children. Despite its potential, ACIS device should be considered as an adjunct method in detecting caries on primary teeth.

Effectiveness of Silver Diamine Fluoride in Preventing Occlusal Caries in Primary Teeth of Preschool Children: a Study Protocol for a Randomized Clinical Trial (Preprint)

2021 ◽  
Author(s):  
Duangporn Duangthip ◽  
SHUYANG HE ◽  
Sherry Shiqian Gao ◽  
Chun Hung Chu ◽  
Edward Chin Man Lo
Keyword(s):  
Logistic Regression ◽  
Preschool Children ◽  
Oral Health ◽  
Primary Teeth ◽  
Controlled Trial ◽  
Public Health Problem ◽  
Placebo Control ◽  
Occlusal Caries ◽  
Silver Diamine Fluoride ◽  
Occlusal Surfaces

BACKGROUND Tooth decay is a significant public health problem globally. The caries-arrest effectiveness of 38% silver diamine fluoride (SDF) has been well documented. However, information on the caries preventive effect of SDF on primary teeth is insufficient. OBJECTIVE The aim of this trial is to investigate the effectiveness of semi-annual application of 38% SDF and that of 5% sodium fluoride (NaF) varnish when compared to placebo control in preventing occlusal caries in primary molars of preschool children over 30 months. METHODS This three-arm, parallel design, double-blind, randomised controlled trial involves 791 preschool children. Children are randomly allocated to receive one of the three interventions as follows; Group 1) 38% SDF, Group 2) 5% NaF varnish, and Group 3) placebo control with tonic water. The intervention and dental examination will be carried out every 6 months. A parent-administered questionnaire including the children’s demographic background and oral health-related behaviours has been collected at baseline. Follow-up examinations to detect new caries development will be conducted every 6 months by a masked examiner. Caries development will be diagnosed at the cavitation level. Chi-square tests and logistic regression analyses will be adopted. A two-level logistic regression analysis will be performed to investigate the effects of the study interventions and other potential confounding factors on the development of occlusal caries. RESULTS Result: To date, a total of 791 children are participating in the study. CONCLUSIONS If SDF application is more effective than NaF varnish in preventing caries on occlusal surfaces of primary teeth, it can be a preferred choice for caries prevention in a kindergarten-based program. Results of this trial will provide valuable clinical evidence for the development of oral health strategies and policy on promotion of child oral health CLINICALTRIAL ClinicalTrials.gov NCT05084001

scholarly journals Performance of Laser Fluorescence for Residual Caries Detection in Primary Teeth

2008 ◽  
Vol 02 (03) ◽  
pp. 176-184 ◽  
Author(s):  
Taskin Gurbuz ◽  
Yucel Yilmaz ◽  
Fatih Sengul
Keyword(s):  
Light Microscopy ◽  
Gold Standard ◽  
Primary Teeth ◽  
Polarized Light ◽  
Laser Fluorescence ◽  
Caries Detection ◽  
Sem Images ◽  
Significant Difference ◽  
Residual Caries ◽  
Cavity Floor

ABSTRACTObjectives: The aim of this study was to evaluate the performance of a visual-tactile examination and a laser fluorescence device for detecting residual dentinal caries after carious dentin removal with bur excavation, hand excavation and chemomechanical excavation (Carisolv™].Methods: Thirty extracted coronal caries primary second molars were used. The caries infected dentin has been removed. A blinded examiner checked all cavities for residual caries using a visualtactile examination and laser fluorescence. Then the teeth were sectioned through the prepared cavities andthe two halves of each tooth were processed for light microscopy and Scanning Electron Microscopy (SEM). The presence or absence of residual caries was verified using polarized light microscopy as the gold standard. The cavity floor dentin after removing carious dentin was examined using SEM.Results: In among all groups a significant difference is determined between visual-tactile examination and laser fluorescence (P<.05). There was an agreement between laser fluorescence or visual-tactile examination and histological gold standard (P>.05). In addition, SEM images of the surfaces with the caries removed have shown that a vast majority of the tubule openings is observed to be open in the samples of the Carisolv group in opposition to the other groups.Conclusions: The laser fluorescence system could be effective in checking the removal by other methods, such as bur or Carisolv and avoid excessive removal of the sound dentin. (Eur J Dent 2008;2:176-184)

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