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Keratibumrungpong K, Trairatvorakul C, Jirakran K, Govitvattana N. A Comparison of the Fluoride 'Paint- On' vs Tray Application Techniques for Enamel Remineralisation. Int Dent J 2024:S0020-6539(24)00085-6. [PMID: 38614880 DOI: 10.1016/j.identj.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/28/2024] [Accepted: 03/03/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Fluoride gel treatment is not recommended for children < 6 years old due to its potential toxicity. Hence the aim of this study was to compare the effect of 1.23% acidulated-phosphate fluoride (APF) gel paint-on and the conventional tray application techniques on artificial, deciduous enamel carious lesions embedded on wearable appliances. METHODS In a randomised crossover study, the volunteer children (n = 29) wore mandibular removable appliances containing embedded tooth specimens with artificial carious lesions. The volunteers had 3 different treatment protocols: (I) 0.4 mL non-fluoride (control) gel, (II) 0.4 mL paint-on 1.23% APF gel or (III) 5 mL 1.23% APF gel, 4 minutes tray application. After 1 hour, the appliances were removed and the specimens underwent an in vitro, 14 days of pH-cycling. The mean percentage reduction in fluorescence (ΔF, %) at baseline (ΔF0) and after the pH-cycling (ΔF1) were determined using quantitative light-induced fluorescence-digital analysis. The mean ΔΔF (ΔF1-ΔF0) was calculated to compare the differences between groups. RESULTS The mean ΔΔF of groups I to III were -1.42 ± 1.49, 1.06 ± 2.11, and 1.12 ± 3.57 and -1.25 ± 1.44, 1.13 ± 1.84 and 1.44 ± 3.62 for the smooth surface and proximal surface lesions, respectively. The mean ΔΔF in the 2 treatment groups were significantly greater compared with the control group (P < .001). There was no significant difference in ΔΔF between the APF gel tray and paint-on groups either in the smooth surfaces, or the proximal surfaces (P = .629 and P = .613, respectively). CONCLUSION Our study, for the first time, indicates that the paint-on application of APF gel or the tray application of APF had a similar enamel remineralisation effect. Clinically, this implies that, particularly in younger children, the paint-on application of fluoride is less cumbersome, and possibly more tolerable with a lesser likelihood of fluoride ingestion than the tray application technique. TRIAL REGISTRATION Thai Clinical Trial Registry (https://www.thaiclinicaltrials.org/show/TCTR20190724001).
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Affiliation(s)
- Keratiporn Keratibumrungpong
- Department of Pediatric Dentistry, Faculty of Dentistry, Pediatric Dentistry Residency Program, Chulalongkorn University, Bangkok, Thailand
| | - Chutima Trairatvorakul
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Ketsupar Jirakran
- Department of Pediatrics, Center of Excellence for Maximizing Children's Developmental Potential, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nattanan Govitvattana
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
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Jung K, Choi SM, Jung HI, Kim E, Kim S. Evaluation of residual dentin thickness using quantitative light-induced fluorescence technology. Odontology 2024:10.1007/s10266-024-00922-4. [PMID: 38509319 DOI: 10.1007/s10266-024-00922-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/18/2024] [Indexed: 03/22/2024]
Abstract
This study aimed to determine whether a correlation exists between residual dentin thickness and quantitative light-induced fluorescence (QLF) values and, if so, to analyze its tendencies. Forty extracted sound human molars were assigned to filled and unfilled groups. The teeth were submerged in a mold with clear acrylic resin. Red utility wax was inserted into the pulp chamber space in the filled group to simulate vital pulp. The specimen was sectioned longitudinally to observe the inside of the pulp space. The samples were cut horizontally from the highest point of the pulp space 2 mm apart. QLF images were then taken of 2 mm, 1 mm, and 0.5 mm samples using the QLF-D Biluminator™ 2 + system. Three operators independently evaluated the QLF images, and the statistical analysis was conducted using one-way analysis of variance, Pearson correlation coefficients, and intraclass correlation coefficients. In the filled group, the mean ΔF values for residual dentin thicknesses of 2 mm, 1 mm, and 0.5 mm were - 3.22, - 7.84, and - 11.52, respectively. In the unfilled group, the mean ΔF values were 0, - 6.90, and - 10.14, respectively. A positive correlation was found between residual dentin thickness and ΔF values (P < 0.05). The intraclass correlation coefficients for observations made by the three operators for the filled and unfilled groups were 0.831 and 0.917, respectively (P < 0.05). In conclusion, residual dentin thickness and ΔF values were significantly correlated and had a highly positive correlation regardless of the QLF device operator.
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Affiliation(s)
- Kiljoo Jung
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Stephanie Myeong Choi
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Hoi-In Jung
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Euiseong Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Sunil Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
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Red Marine Algae Lithothamnion calcareum Supports Dental Enamel Mineralization. Mar Drugs 2023; 21:md21020109. [PMID: 36827150 PMCID: PMC9963885 DOI: 10.3390/md21020109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
The current management of oral conditions such as dental caries and erosion mostly relies on fluoride-based formulations. Herein, we proposed the use of the remaining skeleton of Lithothamnion calcareum (LC) as an alternative to fluorides. LC is a red macroalgae of the Corallinales order, occurring in the northeast coast of Brazil, whose unique feature is the abundant presence of calcium carbonates in its cell walls. Two experimental approaches tested the general hypothesis that LC could mediate enamel de-remineralization dynamics as efficiently as fluorides. Firstly, the effect of LC on enamel de-mineralization was determined in vitro by microhardness and gravimetric measurements to test the hypothesis that LC could either prevent calcium/phosphate release from intact enamel or facilitate calcium/phosphate reprecipitation on an artificially demineralized enamel surface. Subsequently, an in situ/ex vivo co-twin control study measured the effect of LC on the remineralization of chemical-demineralized enamel using microhardness and quantitative light-induced fluorescence. With this second experiment, we wanted to test whether outcomes obtained in experiment 1 would be confirmed by an in situ/ex vivo co-twin control model. Both experiments showed that LC exhibited equivalent or superior ability to modulate enamel de-remineralization when compared to fluoride solution. LC should be explored as an alternative to manage oral conditions involving the enamel demineralization.
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Fernandes NLS, Silva JGVC, de Sousa EBG, D'Alpino PHP, de Oliveira AFB, de Jong EDJ, Sampaio FC. Effectiveness of fluoride-containing toothpastes associated with different technologies to remineralize enamel after pH cycling: an in vitro study. BMC Oral Health 2022; 22:489. [PMID: 36376830 PMCID: PMC9664592 DOI: 10.1186/s12903-022-02429-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND To evaluate the efficacy of fluoride-containing toothpastes with different technologies to remineralize artificial caries lesions in enamel. METHODS Bovine enamel blocks were divided into three thirds: intact (untreated), demineralized (artificial caries lesion), and treated (caries lesion, pH cycling with dentifrices). Enamel blocks were randomly distributed into five groups (n = 12): Fluoride-free toothpaste, Colgate Oral Care (NC); Arginine-containing toothpaste, Colgate Total Daily Repair (PC); Silicate-based fluoride toothpaste: REFIX technology, regenerador + sensitive (RDC), NR-5 technology, Regenerate Enamel Science (RES), and NOVAMIN technology, Sensodyne Repair and Protect (SRP). The specimens were submitted to a pH cycling model for 6 days. The efficacy of the toothpastes was estimated by calculating the surface microhardness recovery (%SMHR) and the fluorescence recovery (ΔFRE) with quantitative light-induced fluorescence. The cross-sectional micromorphology of the enamel surface was also assessed using scanning electron microscopy. Elemental analyses (weight%) were determined with an energy-dispersive X-ray spectrometer (EDS). The results were compared to that of the control (NC). Data were statistically analyzed (5%). RESULTS %SMHR could be ranked as follows: RDC = PC = RES = SRP > NC. Significantly higher %SMHR and ΔFRE means were observed after enamel treatment with RDC (22.7 and 46.9, respectively). PC (%SMHR = 18.8) was as efficacious as RDC to recover the surface microhardness with a significantly lower mean of ΔFRE (19.5). Only RDC was able to promote the formation of a mineralized layer on the surface of enamel enriched with silicon on the surface. CONCLUSIONS The silicate-based fluoride toothpaste containing REFIX technology demonstrated greater efficacy in the remineralizing artificial caries than the other products.
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Affiliation(s)
- Nayanna Lana Soares Fernandes
- Stricto Sensu Post-Graduate Program in Dentistry, Department of Clinical and Community Dentistry, Health Science Center, Federal University of Paraiba (UFPB), João Pessoa, PB, Brazil
| | | | | | - Paulo Henrique Perlatti D'Alpino
- Triplet Biotechnology Solution, São Paulo, SP, Brazil
- POSMAT - Post-Graduate Program in Materials Science and Technology, School of Sciences, São Paulo State University (UNESP), Bauru, SP, Brazil
| | | | | | - Fábio Correia Sampaio
- Stricto Sensu Post-Graduate Program in Dentistry, Department of Clinical and Community Dentistry, Health Science Center, Federal University of Paraiba (UFPB), João Pessoa, PB, Brazil.
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Kreher D, Park KJ, Schmalz G, Schulz-Kornas E, Haak R, Ziebolz D. Evaluation of quantitative light-induced fluorescence to assess lesion depth in cavitated and non-cavitated root caries lesions - An in vitro study. Photodiagnosis Photodyn Ther 2021; 37:102675. [PMID: 34906738 DOI: 10.1016/j.pdpdt.2021.102675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/21/2021] [Accepted: 12/06/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND This in vitro study aimed to assess carious lesions on root surfaces using quantitative light-induced fluorescence (QLF) and to compare the readings with axial lesion depth on µCT. METHODS The root surfaces of 107 extracted human teeth were included after visual-tactile inspection. For further analysis, the following parameters were assessed: clinical findings (non-cavitated: leathery or hard, cavitated), QLF- (QLF-D Biluminator 2+), and µCT-images (Bruker Skyscan 1172). The shape of the undamaged tooth surface of the cavitated lesions was virtually re-constructed during µCT analysis. Clinical surface texture,% fluorescence loss, and lesion depth (µCT) were determined. STATISTICAL ANALYSIS chi²-test, Spearman-Rho test, regression analysis. RESULTS ∆F was significantly lower in non-cavitated leathery (-50.37 ± 15.10) and cavitated (-61.23 ± 9.92) compared to non-cavitated surfaces with a hard texture (-17.04 ± 16.10, p < 0.01). For non-cavitated surfaces, a negative correlation was observed between ∆F and lesion depth in µCT images regardless of texture (-0.748, p < 0.01). Regression analysis revealed that ∆F predicted lesion depth in µCT for non-cavitated surfaces (β: 0.703, CI95: 0.67--0.43, p < 0.01). CONCLUSION The percentage of fluorescence loss (∆F) in QLF predicted lesion depth of non-cavitated demineralized root surfaces. Therefore, QLF can be recommended for estimating the lesion depth of carious root lesions and seems to expand the possibilities of follow-up and lesion monitoring, especially for non-cavitated surfaces.
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Affiliation(s)
- Deborah Kreher
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Kyung-Jin Park
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Gerhard Schmalz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Ellen Schulz-Kornas
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Rainer Haak
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, Leipzig 04103, Germany.
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Prevention of non-cavitated lesions with fluoride and xylitol varnishes during orthodontic treatment: a randomized clinical trial. Clin Oral Investig 2021; 25:3421-3430. [PMID: 33835256 DOI: 10.1007/s00784-021-03930-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 03/30/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Fixed orthodontic appliances impair oral hygiene increasing the risk of non-cavitated lesions (NCLs) and tooth decay. The aim of this study was to compare the outcomes of fluoride and xylitol varnishes in preventing NCLs during comprehensive orthodontic treatment. MATERIALS AND METHODS The sample comprised 55 volunteers from 15 to 20 years of age under orthodontic treatment that were randomly divided into three groups: Fluoride Group (FG; n=17), Xylitol Group (XG; n=19), and Placebo Group (PG; n=19). The patients in each group received two applications of the following varnishes: DuraphatTM (5% NaF), 20% xylitol, and placebo (no F/Xylitol) in the three groups, respectively. The varnishes were applied in the first appointment (T0) and 3 months later (T1). Clinical examinations were carried out at T0 and 6 months after (T2) using the ICDAS index and the QLF system (fluorescence difference). The intergroup comparisons were performed by ANOVA/Tukey's or Kruskal-Wallis/Dunn's tests (P<0.05). RESULTS There was no significant intergroup difference regarding ICDAS index changes from T0 to T2. Fluoride varnish produced significantly greater increase in fluorescence of NCLs (mean change of -0.65 +0.78 and -0.56 +0.83, for maxilla and mandible, respectively) in comparison to the other groups. The majority of non-cavitated lesions improved in the fluoride and xylitol varnish groups. CONCLUSIONS Fluoride varnish produced significantly greater increase in enamel fluorescence compared to xylitol and placebo varnishes. In short term, both fluoride and xylitol varnishes produced remineralization of NCLs in orthodontic patients. CLINICAL RELEVANCE Non-cavitated lesions can be effectively controlled in high-risk orthodontic patients by means of fluoride varnishes. CLINICAL TRIAL REGISTRATION ReBEC Identifier: RBR-6mdxfq; Date of Register: March 19th, 2020. Retrospectively Registered.
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Zheng W, Ding L, Wang Y, Han S, Zheng S, Guo Q, Li W, Zhou X, Zhang L. The effects of 8DSS peptide on remineralization in a rat model of enamel caries evaluated by two nondestructive techniques. J Appl Biomater Funct Mater 2019; 17:2280800019827798. [PMID: 30808229 DOI: 10.1177/2280800019827798] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Nowadays, dental caries is one of the most common oral health problems, affecting most individuals. It has been found that, by remineralizing enamel at an early stage in the formation of enamel caries, teeth can be effectively protected from dental caries. In this work, a peptide with eight repetitive sequences of aspartate-serine-serine (8DSS) is applied as the bio-mineralizer in an in-vivo rat enamel caries model. Nondestructive quantitative light-induced fluorescence-digital (QLF-D) imaging and micro-computed tomography (micro-CT) are used to evaluate the remineralization of enamel carious lesions by measuring the total fluorescence radiance loss of the molar area (Δ QTotal), acquired using QLF-D imaging, and the mineral density and residual molar enamel volume, acquired using micro-CT. Correlations are explored between Δ QTotal and mineral density (strong correlation, r = 0.8000, p < 0.001) and Δ QTotal and residual molar enamel volume (moderate correlation, r = 0.6375, p < 0.001). Our results demonstrate that 8DSS is a promising in-vivo remineralization agent that exhibits comparable effects to NaF ( p < 0.05), which has been verified using the classical Keyes method. Moreover, the nondestructive QLF-D and micro-CT methods can be combined to quantify the remineralization of enamel carious lesions three-dimensionally in vivo, making them broadly applicable in quantifying hard tissues.
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Affiliation(s)
- Wenyue Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Longjiang Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yufei Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sili Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sainan Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Yu Y, Wang X, Ge C, Wang B, Cheng C, Gan YH. Effects of rinsing with arginine bicarbonate and urea solutions on initial enamel lesionsin situ. Oral Dis 2017; 23:353-359. [PMID: 27917567 DOI: 10.1111/odi.12618] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/25/2016] [Accepted: 11/24/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Y Yu
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing Haidian District China
| | - X Wang
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing Haidian District China
| | - C Ge
- Department of Prosthodontics; Peking University School and Hospital of Stomatology; Beijing Haidian District China
| | - B Wang
- Department of Prosthodontics; Peking University School and Hospital of Stomatology; Beijing Haidian District China
| | - C Cheng
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing Haidian District China
| | - Y-H Gan
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing Haidian District China
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Gambetta-Tessini K, Mariño R, Ghanim A, Adams GG, Manton DJ. Validation of quantitative light-induced fluorescence-digital in the quantification of demarcated hypomineralized lesions of enamel. ACTA ACUST UNITED AC 2017; 8. [DOI: 10.1111/jicd.12259] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 11/17/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Karla Gambetta-Tessini
- Oral Health Cooperative Research Centre; Melbourne Dental School; The University of Melbourne; Melbourne Victoria Australia
| | - Rodrigo Mariño
- Oral Health Cooperative Research Centre; Melbourne Dental School; The University of Melbourne; Melbourne Victoria Australia
| | - Aghareed Ghanim
- Oral Health Cooperative Research Centre; Melbourne Dental School; The University of Melbourne; Melbourne Victoria Australia
| | - Geoffrey G. Adams
- Oral Health Cooperative Research Centre; Melbourne Dental School; The University of Melbourne; Melbourne Victoria Australia
| | - David J. Manton
- Oral Health Cooperative Research Centre; Melbourne Dental School; The University of Melbourne; Melbourne Victoria Australia
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Effect of Fluoride Varnish on Enamel Remineralization in Anterior Teeth with Molar Incisor Hypomineralization. J Clin Pediatr Dent 2017; 40:207-10. [PMID: 27472567 DOI: 10.17796/1053-4628-40.3.207] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate the effect of fluoride varnish on remineralization of anterior teeth affected by Molar-Incisor Hypomineralization (MIH) by means of Quantitative Light-Induced Fluorescence- QLF. STUDY DESIGN Fifty-one healthy 9 - 12- year-old children were selected according to different clinically diagnosed levels of MIH, proposed by the European Academy of Pediatric Dentistry (2003) (considering the most severe lesion per patient, n= 51 lesions), and randomly divided into two groups: (1) four applications of 5% NaF varnish, with one-week interval, and (2) usual home care- control. At each visit, the mean change in fluorescence and area of lesion were measured by QLF. The data were analyzed by repeated measures ANOVA and Tukey's test. RESULTS All patients showed enamel alterations in first permanent molars and incisors, frequently with two molars affected by MIH (41.1%). There was no statically significant difference in the mean of fluorescence and area of lesion between groups over the studied time. CONCLUSION We observed no favorable effect on the remineralization of MIH lesions in anterior teeth after four applications of fluoride varnish.
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Han S, Fan Y, Zhou Z, Tu H, Li D, Lv X, Ding L, Zhang L. Promotion of enamel caries remineralization by an amelogenin-derived peptide in a rat model. Arch Oral Biol 2017; 73:66-71. [DOI: 10.1016/j.archoralbio.2016.09.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 09/10/2016] [Accepted: 09/24/2016] [Indexed: 10/20/2022]
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Maia AMA, de Freitas AZ, de L Campello S, Gomes ASL, Karlsson L. Evaluation of dental enamel caries assessment using Quantitative Light Induced Fluorescence and Optical Coherence Tomography. JOURNAL OF BIOPHOTONICS 2016; 9:596-602. [PMID: 26351155 DOI: 10.1002/jbio.201500111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 07/26/2015] [Accepted: 07/27/2015] [Indexed: 06/05/2023]
Abstract
An in vitro study of morphological alterations between sound dental structure and artificially induced white spot lesions in human teeth, was performed through the loss of fluorescence by Quantitative Light-Induced Fluorescence (QLF) and the alterations of the light attenuation coefficient by Optical Coherence Tomography (OCT). To analyze the OCT images using a commercially available system, a special algorithm was applied, whereas the QLF images were analyzed using the software available in the commercial system employed. When analyzing the sound region against white spot lesions region by QLF, a reduction in the fluorescence intensity was observed, whilst an increase of light attenuation by the OCT system occurred. Comparison of the percentage of alteration between optical properties of sound and artificial enamel caries regions showed that OCT processed images through the attenuation of light enhanced the tooth optical alterations more than fluorescence detected by QLF System. QLF versus OCT imaging of enamel caries: a photonics assessment.
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Affiliation(s)
- Ana Marly Araújo Maia
- Faculty of Dentistry, Universidade Estadual da Paraíba, Av. Coronel Pedro Targino S/N, Araruna, Paraíba, CEP 58233-000, Brazil.
- Department of Prosthodonticsand Oral and Facial Surgery, Universidade Federal de Pernambuco, Recife, PE, Brazil.
| | | | - Sergio de L Campello
- Centro Acadêmico do Agreste, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brazil
| | | | - Lena Karlsson
- Departamentof Dental Medicine, Karolinska Institutet, Sweden
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BOLDIERI T, DINIZ MB, SANABE ME, RODRIGUES JA, CORDEIRO RDCL. Desempenho de métodos baseados em indução de fluorescência na avaliação da remoção de dentina cariada. REVISTA DE ODONTOLOGIA DA UNESP 2016. [DOI: 10.1590/1807-2577.12615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Introdução Critérios clínicos vêm sendo utilizados para determinação da presença de tecido cariado remanescente, mas geram dúvidas, tornando-se relevante a utilização de métodos que auxiliem na determinação da presença de cárie dentária remanescente. Objetivo Avaliar in vitro a eficácia de métodos de indução de fluorescência no diagnóstico da remoção de tecido cariado artificial dentinário. Material e método O esmalte oclusal de 94 terceiros molares humanos hígidos foi removido, expondo a dentina subjacente, para indução microbiológica de lesão de cárie artificial. Após a remoção do tecido cariado induzido, o remanescente dentinário foi avaliado por dois examinadores com DIAGNOdent, DIAGNOdent pen e Quantitative Light-Induced Fluorescence (QLF). Após todas as avaliações, secções dos dentes foram observadas e fotografadas em lupa estereoscópica com 30× de aumento por um examinador independente. As imagens foram analisadas no software Image J, permitindo a quantificação de tecido remanescente em milímetros quadrados. Foi calculada a reprodutibilidade interexaminador através de coeficiente intraclasse, sensibilidade, especificidade e área sob a curva ROC, e o teste de McNemar (p<0,05) foi aplicado para comparação dos diferentes métodos. Resultado Dos 94 dentes, 51 (54,2%) apresentaram remanescente de tecido cariado. Os valores de sensibilidade, especificidade e área sobre a curva ROC foram semelhantes para os três grupos (p>0,05). Os valores de reprodutibilidade variaram entre 0,952 e 0,978. Conclusão Dentre os métodos utilizados, o DIAGNOdent e o DIAGNOdent pen apresentaram melhor desempenho na avaliação da presença de cárie artificial remanescente quando comparados ao QLF.
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Salomão PMA, Comar LP, Buzalaf MAR, Magalhães AC. In situ remineralisation response of different artificial caries-like enamel lesions to home-care and professional fluoride treatments. BMC Oral Health 2016; 16:2. [PMID: 26746199 PMCID: PMC4706651 DOI: 10.1186/s12903-016-0160-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 01/04/2016] [Indexed: 11/10/2022] Open
Abstract
Background Artificial lesions produced by different protocols might directly influence the response to different remineralising treatments. This study compared the response of different artificial caries-like enamel lesions to home-care and professional fluoride based-remineralising treatments in situ. Methods The tested demineralising protocols were methylcellulose- MC gel, polyacrylic acid - PA gel, tetraethyl methylene diphosphanate - TEMDP solution, and acetate- Buffer solution. The lesions were remineralised using an in situ model, following a crossover and double blind design. Twelve subjects wore intra-oral appliances during 3 phases (3 d each): control (C) (saliva); home-care F− treatment (FD) (1,100 ppm F− dentifrice, 2x1 min/day); and professional (FVD) (22,600 ppm F− varnish) plus FD. The de-remineralisation was measured by transverse microradiography-TMR and hardness (surface hardness/cross-sectional hardness, SH/CSH, respectively). Results For SH, lesions produced by PA gel were the only one showing significant differences among the remineralising treatments (C x FD x FVD); while the TEMDP lesion were not responsive to any fluoride treatment (for both SH/CSH). For TMR, there were no differences among the remineralising treatments, regardless of the type of lesion. Generally, the most responsive lesions to fluoride were the less demineralised lesions (considering hardness: PA gel and Buffer). Conclusions The type of lesion has influence on the surface remineralisation degree induced by home-care and professional fluoride treatments using this in situ model.
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Affiliation(s)
- Priscila Maria Aranda Salomão
- Department of Biological Sciences, Bauru School of Dentistry - University of São Paulo, Al. Dr. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
| | - Lívia Picchi Comar
- Department of Biological Sciences, Bauru School of Dentistry - University of São Paulo, Al. Dr. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry - University of São Paulo, Al. Dr. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
| | - Ana Carolina Magalhães
- Department of Biological Sciences, Bauru School of Dentistry - University of São Paulo, Al. Dr. Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
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Control of white spot lesion adjacent to orthodontic bracket with use of fluoride varnish or chlorhexidine gel. ScientificWorldJournal 2015; 2015:218452. [PMID: 25973442 PMCID: PMC4417997 DOI: 10.1155/2015/218452] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 04/02/2015] [Indexed: 12/12/2022] Open
Abstract
The aims of this study were to compare the effectiveness of fluoride varnish and chlorhexidine gel in controlling white spot lesions (WSLs) adjacent to orthodontic brackets and to compare the ability of Quantitative Light-Induced Fluorescence (QLF) to measure mineral uptake with that of transverse microradiography (TMR). Thirty premolars with artificially induced WSLs were randomly assigned to three groups: (1) two applications of 5% NaF-varnish (F), with one-week interval, (2) two applications of 2% chlorhexidine gel (CHX), with one-week interval, and (3) control (CO), no treatment. QLF was used to measure changes in fluorescence before and after caries induction, 1 week after each application and 1, 2, and 3 months after the last application of F or CHX. TMR was performed to quantify lesion depth and mineral content after caries induction to evaluate the effects of F, CHX, and CO 3 months after the last application of agents. The data were analyzed by repeated measures ANOVA and Tukey's test. All treatments increased the mineral content during the experimental period; however, F induced faster remineralization than CHX. The correlation between QLF and TMR was significantly moderate. Two applications of fluoride varnish or 2% chlorhexidine gel at one-week intervals were effective in controlling WSLs.
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De Campos PH, Sanabe ME, Rodrigues JA, Duarte DA, Santos MTBR, Guaré RO, Duque C, Lussi A, Diniz MB. Different bacterial models forin vitroinduction of non-cavitated enamel caries-like lesions: Microhardness and polarized light miscroscopy analyses. Microsc Res Tech 2015; 78:444-51. [DOI: 10.1002/jemt.22493] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 03/01/2015] [Indexed: 11/10/2022]
Affiliation(s)
| | - Mariane Emi Sanabe
- Department of Pediatric Dentistry; Camilo Castelo Branco University-UNICATELO; São Paulo-SP 04204-002 Brazil
| | - Jonas Almeida Rodrigues
- Department of Pediatric Dentistry, School of Dentistry; Rio Grande Do Sul Federal University-UFRGS; Porto Alegre RS 90035-003 Brazil
| | - Danilo Antonio Duarte
- Department of Pediatric Dentistry; Cruzeiro Do Sul University-UNICSUL; São Paulo-SP 01506-000 Brazil
| | | | - Renata Oliveira Guaré
- Department of Pediatric Dentistry; Cruzeiro Do Sul University-UNICSUL; São Paulo-SP 01506-000 Brazil
| | - cristiane Duque
- Department of Pediatric Dentistry, Araçatuba School of Dentistry; São Paulo State University - UNESP; Araçatuba SP 16015-050 Brazil
| | - Adrian Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine; University of Bern-UNIBE; Bern CH 3010 Switzerland
| | - Michele Baffi Diniz
- Department of Pediatric Dentistry; Cruzeiro Do Sul University-UNICSUL; São Paulo-SP 01506-000 Brazil
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Do bonding agents protect the bracket-periphery?—Evaluation by consecutive μCT scans and fluorescence measurements. Clin Oral Investig 2014; 19:159-68. [DOI: 10.1007/s00784-014-1378-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 11/21/2014] [Indexed: 10/24/2022]
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