Discrimination of Dental Caries Using Colorimetric Characteristics of Fluorescence Spectrum

2015 ◽  
Vol 49 (4) ◽  
pp. 401-407 ◽  
Author(s):  
Qingguang Chen ◽  
Haihua Zhu ◽  
Ying Xu ◽  
Bin Lin ◽  
Hui Chen

The feasibility of colorimetric parameters for the discrimination of the stages of dental caries based on a light-induced autofluorescence spectrum at a 405-nm excitation wavelength was investigated. The fluorescence spectra of 4 groups of tooth samples (10 sound, 10 early-stage decay, 14 established decay, and 10 severe decay), which were classified by the International Caries Detection and Assessment System, were experimentally measured in vitro. The carious lesion samples had an additional fluorescence peak at around 627 nm. The mathematical relation of the fluorescence spectrum and human color perception was established and computed. With increasing severity, the fluorescence color changed from green to yellow according to the colorimetric parameters of the CIE 1931 (x, y) chromaticity coordinates and dominant wavelengths. The results from a one-way ANOVA of the dominant wavelength showed a statistically significant difference among the 4 classified groups. The colorimetric parameters of the light-induced fluorescence spectrum can potentially be applied to evaluate the various carious levels.

2017 ◽  
Vol 51 (4) ◽  
pp. 443-450 ◽  
Author(s):  
H. Ashi ◽  
C. Lara-Capi ◽  
G. Campus ◽  
G. Klingberg ◽  
P. Lingström

Dietary habits and, in particular, the intake frequency of sucrose are of major importance for the development of dental caries. The perception of sweet taste is believed to have an influence on sucrose intake and therefore affects the predisposition to dental caries. The aim was to study the caries experience and sweet taste perception and to further analyze the possible relationship between the 2 tested variables in 13- to 15-year-old children from 3 different geographical areas. A cross-sectional survey comprising 669 children (220 Italian, 224 Mexican, and 225 Saudi Arabian) was conducted. The children were examined in their school setting. A sweet taste perception level was determined by the sweet taste threshold (TT) and sweet taste preference (TP). The sweet test was performed with sucrose solutions varying in concentration from 1.63 to 821.52 g/L. The International Caries Detection and Assessment System (ICDAS) and DMFS indices were used to diagnose caries. The highest mean value for TT was found for Italian children followed by Saudi and Mexican. Saudi schoolchildren showed the highest mean values for TP and DMFS, followed by Italian and Mexican. A statistically significant difference for TP, TT, DMFS, and initial caries was found between the 3 countries. A weak yet positive correlation was found between taste perception (TT and TP) versus DMFS and manifest caries in all 3 countries (r = 0.137-0.313). The findings of the present study showed a variation in sweet taste perception between the 3 countries, which may influence the caries outcome of the children in the individual countries.


Author(s):  
Rabia Sannam Khan

Introduction: Dental care for older population is becoming a matter of concern within the National health services (NHS) United Kingdom (UK) due to increasing life expectancy of older people and retention of their natural teeth. The aim of study was to relate the International Caries Detection and Assessment System (ICDAS) scores with severity index in order to detect root caries and DIAGNOdent readings, at an early stage, to manage these lesions non-invasively. Methods: Fresh 95 extracted teeth were collected from Oral Surgery and Dental Emergency Department at Barts and the London, Queen Mary University of London. In this in vitro study, 19 out of 95 teeth had root caries. Prior to recording the readings, extracted teeth were cleaned and polished. Each lesion underwent clinical examination. To detect root caries DIAGNOdent readings (ICDAS), severity index were obtained. Pearson’s correlation coefficients tests were applied. Results: The correlation between cavitation and ICDAS scores shows the significant value of 0.01. The DIAGNOdent reading with momentum and peak values was 45.37 with standard deviation of 32.16 and for peak with the mean value of 49.79 and 31.72 of standard deviation. Regarding, readings of DIAGNOdent and severity index establishment of correlation was difficult to establish. The reason was score of severity index regarding specimen no.1 is 3.3 was illustrative of lesion that is leathery. Conclusion: The DIAGNOdent readings system did not support the detection of root caries. However, the severity index scoring system is in need of greater categories regarding caries of the root.


2015 ◽  
Vol 49 (5) ◽  
pp. 523-530 ◽  
Author(s):  
Mahmoud Jallad ◽  
Domenick Zero ◽  
George Eckert ◽  
Andrea Ferreira Zandona

Background: The paradigm shift towards the nonsurgical management of dental caries relies on the early detection of the disease. Detection of caries at an early stage is of unequivocal importance for early preventive intervention. Objective: The aim of this in vitro study is to evaluate the performance of a visual examination using the International Caries Detection and Assessment System (ICDAS) criteria, two quantitative light-induced fluorescence (QLF) systems - Inspektor™ Pro and QLF-D Biluminator™ 2 (Inspektor Research Systems B.V., Amsterdam, The Netherlands) - and a photothermal radiometry and modulated luminescence, The Canary System® (Quantum Dental Technologies, Toronto, Ont., Canada) on the detection of primary occlusal caries on permanent teeth. Methods: A total of 60 teeth with occlusal surface sites ranging from sound to noncavitated lesions (ICDAS 0-4) were assessed with each detection method twice in a random order. Histological validation was used to compare methods for sensitivity, specificity, percent correct, and the area under the receiver operating characteristic curve (AUC), at standard and optimum sound thresholds. Interexaminer agreement and intraexaminer repeatability were measured using intraclass correlation coefficients. Results: Interexaminer agreement ranged between 0.48 (The Canary System®) and 0.96 (QLF-D Biluminator™ 2). Intraexaminer repeatability ranges were 0.33-0.63 (The Canary System®) and 0.96-0.99 (QLF-D Biluminator™ 2). The sensitivity range was 0.75-0.96 while that of specificity was 0.43-0.89. The AUC were 0.79 (The Canary System®), 0.87 (ICDAS), 0.90 (Inspektor™ Pro), and 0.94 (QLF-D Biluminator™ 2). Conclusion: ICDAS had the best combination of sensitivity and specificity followed by QLF-D Biluminator™ 2 at optimum threshold.


2011 ◽  
Vol 36 (2) ◽  
pp. 133-142 ◽  
Author(s):  
MB Diniz ◽  
LM Lima ◽  
G Eckert ◽  
AG Ferreira Zandona ◽  
RCL Cordeiro ◽  
...  

Clinical RelevanceIt has been suggested that occlusal caries detection has become more difficult due to the widespread use of fluoride, which slows down lesion progression and delays cavitation. The ability to detect caries lesions at an early stage has a significant impact on treatment decisions, improving the possibility for a successful preventive intervention. In this investigation, the authors found that the International Caries Detection and Assessment System associated with radiographic examination has the potential to support treatment decisions for occlusal surfaces.


2018 ◽  
Vol 42 (4) ◽  
pp. 269-272 ◽  
Author(s):  
A Solis-Riggioni ◽  
C Gallardo-Barquero ◽  
D Chavarria-Bolaños

Aim: The aim of this study was to determine the prevalence and severity of dental caries among institutionalized children and adolescents in San José, Costa Rica. Study design: This cross-sectional descriptive study included 201 children and adolescents between the ages of 2 and 17 years. Participants were selected by following pre-established criteria from 33 shelters located in the province of San José, Costa Rica. The International Caries Detection Assessment System (ICDAS) method was used for caries assessment. ANOVA and Student's T-test were used for statistical analysis. Results: Caries prevalence was estimated at 96.35% among participants in the study. No significant difference was found for sex (p=0.653) or age group (p=0.349). Regarding caries severity, it was found that early enamel lesions were the most frequent pathology, representing 79.2% of decayed surfaces. Conclusions: This study found that different risk factors (social, psychological, economic, and personal) may be related to the high prevalence of dental caries in foster-care children and adolescents. Special strategies may need to be developed to prevent and treat dental caries in this vulnerable population.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mirja Methuen ◽  
Sofia Kauppinen ◽  
Anna Liisa Suominen ◽  
Aino-Maija Eloranta ◽  
Juuso Väistö ◽  
...  

Abstract Background An association between childhood anthropometric measurements and dental caries is conflicting. The prevalence and severity of dental caries and its association with anthropometric and behavioural factors, were investigated among Finnish teenagers. Methods The study sample comprised 202 15–17-year-old participants in the Physical Activity and Nutrition in Children (PANIC) Study. Dental caries findings were recorded using International Caries Detection and Assessment System (ICDAS) criteria, including activity estimation; numbers of decayed teeth (DT) and decayed, missing and filled teeth (DMFT) were recorded. Body weight, height and waist circumference were measured and respective body mass index (BMI) was calculated. Body fat percentage was assessed by dual-energy X-ray absorptiometry. Health-related behaviours and consumption of food and drinks were assessed using questionnaires, and intake of nutrients using a 4-day food record. Results Mean DMFT for all the participants was 2.4 (SD = 2.9), DT 0.6 (SD = 1.3), and 36% had DMFT = 0. No difference between genders was observed. In bivariate analyses, use of sugar-sweetened beverages (SSB) three times or less per week and not having used snuff associated significantly, whereas higher carbohydrate intake (E%), toothbrushing less often than twice a day and higher caries experience at baseline almost significantly with DT > 0. In adjusted regression analyses, frequent use of SSB and higher carbohydrate intake increased the odds for DT > 0. Additionally, higher carbohydrate intake (E%) and infrequent tooth brushing significantly associated with a higher number of DT. Conclusion Caries prevalence is still low and similar in Finnish teenage girls and boys. Behavioural factors are, but anthropometric factors are not associated with dental caries.


2019 ◽  
Vol 57 (2) ◽  
pp. 169-176
Author(s):  
Anna Lena Sundell ◽  
Anna-Karin Nilsson ◽  
Agneta Marcusson ◽  
Carl-Johan Törnhage

Objective: Data on the association between body mass index (BMI) and dental caries in children with orofacial clefts are sparse. Therefore, studies on the impact of BMI on caries frequency in children with cleft lip and/or palate (CL/P) are of importance. The aim of the current study was to investigate the association between BMI and frequency of dental caries in children with and without CL/P. Height, weight, and BMI in children with CL/P were also compared to controls. Design: This study used a cross-sectional case-control design. Participants: One hundred and thirty-nine 5- and 10-year-old children with CL/P and 299 age-matched controls. Main Outcome Measures: Caries was recorded according to the International Caries Detection and Assessment System. Height and weight were recorded, and BMI was calculated as weight/height2. Results: There was no correlation between BMI and caries frequency. Weight, height, and BMI were significantly lower in all children with CL/P compared to controls. After adjustment for international adoption, only BMI was significantly lower in CL/P children compared to controls. Non-adopted children with CL/P were significantly heavier and longer than adopted children with CL/P. Conclusions: Five- and 10-year-old children with corrected CL/P seemed to have a lower BMI than controls, but there was no association between BMI and caries frequency. Internationally adopted children with CL/P were lighter and shorter than non-adopted CL/P children and controls.


Author(s):  
Elzbieta Paszynska ◽  
Monika Dmitrzak-Węglarz ◽  
Aleksandra Perczak ◽  
Maria Gawriolek ◽  
Tomasz Hanć ◽  
...  

In recent years, attention has been paid to the co-occurrence of attention deficit hyperactivity disorder (ADHD) and obesity, but results in relation to dental caries outcomes differ. The study was conducted to determine obesity/overweight and dental caries in children suffering from ADHD and to draw comparisons with non-ADHD children. A total of 119 children under 11 years old (8.2 ± 1.2) were enrolled into a cross-sectional study: those with confirmed ADHD (n = 39), and healthy controls (n = 80). The behavioral evaluation included a parent interview directed at sweetened food/drink habits. The clinical evaluation included physical measurements (height, waist, hip circumference, body weight, body mass index (BMI), and dental examination (International Caries Detection and Assessment System—ICDAS). Results showed a higher prevalence of abnormal body weight, hip circumference, and BMI, and a higher frequency of caries (84.6%) in the ADHD group. Significant caries differences for primary (ICDAS 0, 1, 2, 5, 6 scores) and permanent teeth (ICDAS 1, 3 scores) were recorded. The questionnaire pinpointed interplays between sugar consumption and tooth decay, especially for primary dentition. It can be concluded that the consumption of sweetened foods/drinks among ADHD children may lead to an increased rate of overweight, but may also affect oral health. Limiting sugar consumption might be one of the important elements in prevention programmes against dental caries and overweight/obesity.


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