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Yelken İA, Oz AZ. Evaluation of the effects of 2 different adhesive-coated bracket systems on white spot lesion formation. Am J Orthod Dentofacial Orthop 2023; 164:862-867. [PMID: 37656071 DOI: 10.1016/j.ajodo.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 09/02/2023]
Abstract
INTRODUCTION This study evaluated the effects of 2 different adhesive-precoated (APC) bracket systems on white spot lesions (WSLs). METHODS The study had a split-mouth design, and 34 patients were included. The APC Flash-Free (FF) and APC II system brackets were used. At the end of the treatment, digital photographs of each tooth were taken, the WSLs were scored, and lesion areas were calculated. In the same session, the mineralization level of the teeth was measured by DIAGNOdent. The 2 bracket systems were compared in terms of bonding time. RESULTS There was no difference between the 2 groups regarding the number of WSLs or the size of the lesion areas. In the maxillary arch, 55.3% of the teeth in the FF group and 61.2% in the control group were healthy. In the mandibular arch, no lesions occurred in 61.2% of the teeth in the FF group and 64.7% of the control group. In the evaluation of DIAGNOdent measurements, WSL formation was detected in 3 teeth in the FF group and 4 in the control group. No statistically significant difference was found between the 2 groups. There was a significant difference between the 2 groups in the evaluation of bonding times. CONCLUSIONS The effects did not differ between FF and conventional brackets in patients undergoing fixed orthodontic treatment. The use of FF brackets significantly shortened the bonding time.
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Affiliation(s)
| | - Aslihan Zeynep Oz
- Department of Orthodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
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Sin JHM, Hamlet S, Walsh LJ, Love RM, George R. Oxidising agents and its effect on human dentine fluorescence diagnostic measurements. Photodiagnosis Photodyn Ther 2020; 31:101950. [DOI: 10.1016/j.pdpdt.2020.101950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/16/2020] [Accepted: 08/03/2020] [Indexed: 11/28/2022]
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Vinod D, Gopalakrishnan A, Subramani SM, Balachandran M, Manoharan V, Joy A. A Comparative Evaluation of Remineralizing Potential of Three Commercially Available Remineralizing Agents: An In Vitro Study. Int J Clin Pediatr Dent 2020; 13:61-65. [PMID: 32581482 PMCID: PMC7299886 DOI: 10.5005/jp-journals-10005-1715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim An in vitro study to evaluate and compare the remineralization potential of commercially available remineralizing agents containing silver diamine fluoride (SDF), casein sucrose phosphate (CSP), casein phospho peptide-amorphous calcium phosphate (CPP-ACP) using DIAGNOdent. Materials and methods Thirty freshly extracted premolars for orthodontic treatment were collected. Specimens were randomly divided into 3 groups of 10 each: group I: SDF, group II: CSP, group III: CPP-ACP. The samples were subjected to DIAGNOdent analysis for recording the baseline values. Specimens were placed in demineralizing solution incubated at 37°C for 72 hours. DIAGNOdent values were recorded after demineralization. Following this, remineralization procedure was carried out using 3 different remineralizing agents: group I samples with SDF, group II with CSP, and group III with CPP-ACP. The remineralization procedure was performed to group I once and repeated for 14 days for group II and group III and storage solution was changed every 24 hours. The samples were subjected to DIAGNOdent analysis after 72 hours, 7 days, and 14 days and values were recorded. Results The data were analysed using Statistical Package for the Social Sciences (SPSS) with analysis of variance (ANOVA) and post hoc test. Intragroup comparison of DIAGNOdent readings showed a highly significant difference between baseline, postdemineralization, and postremineralization values. Among intergroup comparison, SDF showed maximum remineralization values followed by CSP and CPP-ACP, respectively. Conclusion Silver diamine fluoride, CSP, and CPP-ACP are proven to possess remineralization potential. Clinical significance A comparative evaluation of these three remineralizing agents will aid in identifying most potent and effective agent in treating initial caries lesions in an effective noninvasive and child-friendly manner. How to cite this article Vinod D, Gopalakrishnan A, Subramani SM, et al. A Comparative Evaluation of Remineralizing Potential of Three Commercially Available Remineralizing Agents: An In Vitro Study. Int J Clin Pediatr Dent 2020;13(1):61–65.
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Affiliation(s)
- Darshana Vinod
- Department of Pediatric and Preventive Dentistry, Royal Dental College, Palakkad, Kerala, India
| | - Anjana Gopalakrishnan
- Department of Pediatric and Preventive Dentistry, Royal Dental College, Palakkad, Kerala, India
| | | | | | - Vidya Manoharan
- Department of Pediatric and Preventive Dentistry, Royal Dental College, Palakkad, Kerala, India
| | - Amrutha Joy
- Department of Pediatric and Preventive Dentistry, Royal Dental College, Palakkad, Kerala, India
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Al-Obaidi R, Salehi H, Collart-Dutilleul PY, Jacquot B, Tassery H, Cuisinier FJG, Gergely C, Cloitre T. Relationship between Changes in Chemical Composition of Enamel Subsurface Lesions and the Emitted Nonlinear Optical Signals: An in vitro Study. Caries Res 2020; 54:144-153. [PMID: 32107346 DOI: 10.1159/000505904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 01/10/2020] [Indexed: 02/05/2023] Open
Abstract
The development of new diagnostic technologies based on the light scattering and autofluorescence properties of dental tissues is required to improve the diagnostic ability of initial caries lesions earlier than previously done and promoting the potential of treatment without surgical intervention. The aim of this study is to correlate fluorescence-based results provided by multiphoton microscopy (MPM) with confocal Raman microscopy records using phosphate level at 960 cm-1 and the organic matrix at ∼2,931 cm-1 in healthy and demineralized human enamel. Measurements on 14 teeth were made using two incident lights of different wavelengths, released by confocal Raman microscopy and MPM. Raman phosphate peak intensity at 960 cm-1 along with organic to mineral ratio at (2,931/430 cm-1) and nonlinear optical signals (second harmonic generation [SHG] and intrinsic two-photon excited fluorescence [I2PEF]) were recorded from the demineralized and healthy enamel sites. Raman spectral maps showed that the higher the organic/mineral ratio in the demineralized enamel, the lower the intensity of mineral component in the same zone. MPM revealed new optical indicators of carious lesion as shown by the presence of a red-shifted fluorescence peak in the 650- to 750-nm area of the fluorescence spectrum of demineralized enamel. Moreover, on sample regions with insignificant autofluorescence, the emergence of the SHG signal could be noted. By comparing I2PEF images with the structural motifs observed by the confocal Raman imaging system, the morphological similarity of the acquired images was quite evident. Any change in the I2PEF spectra reflects alterations in the chemical composition of enamel. These findings may provide an important basis for potentially valuable applications of photonic tools in the clinical diagnosis of tooth pathological conditions, besides exposing the fundamental role of organic matrix in enamel integrity and reparation.
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Affiliation(s)
- Rand Al-Obaidi
- Laboratoire Bioingénierie et Nanosciences (LBN), University of Montpellier, Montpellier, France, .,University of Mustansiriyah, Baghdad, Iraq,
| | - Hamideh Salehi
- Laboratoire Bioingénierie et Nanosciences (LBN), University of Montpellier, Montpellier, France
| | | | | | - Hervé Tassery
- Laboratoire Bioingénierie et Nanosciences (LBN), University of Montpellier, Montpellier, France.,Aix Marseille University, Marseille, France
| | - Frederic J G Cuisinier
- Laboratoire Bioingénierie et Nanosciences (LBN), University of Montpellier, Montpellier, France
| | - Csilla Gergely
- Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, Montpellier, France
| | - Thierry Cloitre
- Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, Montpellier, France
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Improved detection of subgingival calculus by laser fluorescence over differential reflectometry. Lasers Med Sci 2019; 34:1807-1811. [DOI: 10.1007/s10103-019-02777-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/18/2019] [Indexed: 10/27/2022]
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Kobayashi TY, Vitor LLR, Carrara CFC, Silva TC, Rios D, Machado MAAM, Oliveira TM. Dental enamel defect diagnosis through different technology-based devices. Int Dent J 2018; 68:138-143. [DOI: 10.1111/idj.12350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Olivan SRG, Deana AM, Pinto MM, Sfalcin RA, Fernandes KPS, Mesquita-Ferrari RA, Prates RA, Bussadori SK. Diagnosis of occlusal caries lesions in deciduous molars by coherent light scattering pattern speckle. Photodiagnosis Photodyn Ther 2017; 18:221-225. [PMID: 28300725 DOI: 10.1016/j.pdpdt.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/30/2017] [Accepted: 03/09/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND This study presents the correlation between laser speckle images and detection of incipient caries lesions from changs in the microstructure of the surface of tooth enamel. METHODS We used 30 healthy deciduous molar teeth collected from the Biobank Human Teeth, Faculty of Dentistry, University of São Paulo who had carious lesions induced by the pH cycling method. The samples were evaluated for the diagnosis of caries by two methods ICDAS and speckle pattern of coherent light scattering after 5, 10 and 15days and the results were statistically analyzed using α=0.05 significance level. RESULTS A significant difference was observed between the image of the speckle scattering of healthy and injured areas within the 3 study groups, but not when comparing the three groups, showing us that it is an innovative technique that needs further study, but can be used as a diagnostic method for the detection of early caries lesions. CONCLUSION It can be concluded that the analysis of scattering speckle pattern is a diagnostic technique that provides information on the microstructure of the surface of tooth enamel which has sensitivity for detection of incipient caries lesions.
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Affiliation(s)
- Silvia Regina Garcia Olivan
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Alessandro Melo Deana
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil
| | | | - Ravana Angelini Sfalcin
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Kristianne Porta Santos Fernandes
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil
| | | | - Renato Araujo Prates
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Sandra Kalil Bussadori
- Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
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8
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Novaes TF, Moriyama CM, De Benedetto MS, Kohara EK, Braga MM, Mendes FM. Performance of fluorescence-based methods for detecting and quantifying smooth-surface caries lesions in primary teeth: an in vitro study. Int J Paediatr Dent 2016; 26:13-9. [PMID: 25614929 DOI: 10.1111/ipd.12152] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Although smooth-surface caries can be subjectively assessed by visual inspection, quantitative methods would improve the monitoring of these lesions. AIM To evaluate the in vitro performance of laser fluorescence devices, namely DIAGNOdent (LF) and DIAGNOdent pen (LFpen), and a fluorescence camera (VistaProof; FC) in the detection and quantification of smooth-surface caries in primary teeth. DESIGN Two examiners evaluated 99 smooth surfaces of 65 extracted primary molars using FC, LF, and LFpen. As a reference standard, the actual and relative lesion depths were determined using stereomicroscopy and polarized light microscopy. Reproducibilities were assessed, and correlation analyses were performed. The sensitivities, specificities, and accuracies of the methods were calculated and compared. RESULTS There was a significant correlation between the values obtained using the fluorescence-based devices and the actual and relative lesion depths, although the correlation coefficient values were not higher than 0.7 (LF, 0.673; LFpen, 0.646; FC, 0.663). The sensitivities of the devices were similar for the detection of enamel caries, although LFpen was superior in detecting dentin lesions. The reliabilities of all methods were moderate to low, with similar accuracies at all depths. CONCLUSION Although the fluorescence-based devices showed similar performance in the detection of enamel and dentin lesions, the reliability of these devices and the correlation of their findings with the actual and relative lesion depths were moderate with regard to smooth-surface caries in primary molars.
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Affiliation(s)
- Tatiane Fernandes Novaes
- Department of Pediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil.,School of Dentistry, Universidade Cruzeiro do Sul, São Paulo, Brazil
| | - Caroline Moraes Moriyama
- Department of Pediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Eduardo Kazuo Kohara
- Department of Pediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Mariana Minatel Braga
- Department of Pediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Fausto Medeiros Mendes
- Department of Pediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Kaul R, Kaul V, Farooq R, Wazir ND, Khateeb SU, Malik AH, Masoodi AA. Cut off values of laser fluorescence for different storage methods at different time intervals in comparison to frozen condition: A 1 year in vitro study. J Conserv Dent 2014; 17:124-8. [PMID: 24778506 PMCID: PMC4001266 DOI: 10.4103/0972-0707.128043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 12/04/2013] [Accepted: 12/18/2014] [Indexed: 11/17/2022] Open
Abstract
Aims: The aim of the following study is to evaluate the change in laser fluorescence (LF) values for extracted teeth stored in different solutions over 1 year period, to give cut-off values for different storage media at different time intervals to get them at par with the in vivo conditions and to see which medium gives best results with the least change in LF values and while enhancing the validity of DIAGNOdent in research. Materials and Methods: Ninety extracted teeth selected, from a pool of frozen teeth, were divided into nine groups of 10 each. Specimens in Groups 1-8 were stored in 1% chloramine, 10% formalin, 10% buffered formalin, 0.02% thymol, 0.12% chlorhexidine, 3% sodium hypochlorite, a commercially available saliva substitute-Wet Mouth (ICPA Pharmaceuticals) and normal saline respectively at 4°C. The last group was stored under frozen condition at −20°C without contact with any storage solution. DIAGNOdent was used to measure the change the LF values at day 30, 45, 60, 160 and 365. Statistical Analysis Used: The mean change in LF values in different storage mediums at different time intervals were compared using two-way ANOVA. Results: At the end of 1 year, significant decrease in fluorescence (P < 0.05) was observed in Groups 1-8. Maximum drop in LF values occurred between day 1 and 30. Group 9 (frozen specimens) did not significantly change their fluorescence response. Conclusions: An inevitable change in LF takes place due to various storage media commonly used in dental research at different time intervals. The values obtained from our study can remove the bias caused by the storage media and the values of LF thus obtained can hence be conveniently extrapolated to the in vivo condition.
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Affiliation(s)
- Rudra Kaul
- Departments of Conservative & Endodontics, Institute of Dental Sciences, Jammu and Kashmir, India
| | - Vibhuti Kaul
- Departments of Oral Medicine and Radiology, Government Dental College, Srinagar, Jammu and Kashmir, India
| | - Riyaz Farooq
- Departments of Conservative Dentistry & Endodontics, Government Dental College, Srinagar, Jammu and Kashmir, India
| | - Nikhil Dev Wazir
- Departments of Conservative & Endodontics, Institute of Dental Sciences, Jammu and Kashmir, India
| | - Shafayat Ullah Khateeb
- Departments of Conservative Dentistry & Endodontics, Government Dental College, Srinagar, Jammu and Kashmir, India
| | - Altaf H Malik
- Departments of Oral and Maxillofacial Surgery, Government Dental College, Srinagar, Jammu and Kashmir, India
| | - Ajaz Amin Masoodi
- Departments of Conservative & Endodontics, Government Dental College, Jammu and Kashmir, India
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Carvalho FBD, Barbosa AFS, Zanin FAA, Brugnera Júnior A, Silveira Júnior L, Pinheiro ALB. Use of laser fluorescence in dental caries diagnosis: a fluorescence x biomolecular vibrational spectroscopic comparative study. Braz Dent J 2014; 24:59-63. [PMID: 23657415 DOI: 10.1590/0103-6440201302123] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 12/04/2012] [Indexed: 11/22/2022] Open
Abstract
The aim of this work was to verify the existence of correlation between Raman spectroscopy readings of phosphate apatite (~960 cm-1), fluoridated apatite (~575 cm-1) and organic matrix (~1450 cm-1) levels and Diagnodent® readings at different stages of dental caries in extracted human teeth. The mean peak value of fluorescence in the carious area was recorded and teeth were divided in enamel caries, dentin caries and sound dental structure. After fluorescence readings, Raman spectroscopy was carried out on the same sites. The results showed significant difference (ANOVA, p<0.05) between the fluorescence readings for enamel (16.4 ± 2.3) and dentin (57.6 ± 23.7) on carious teeth. Raman peaks of enamel and dentin revealed that ~575 and ~960 cm-1 peaks were more intense in enamel caries. There was significant negative correlation (p<0.05) between the ~575 and ~960 cm-1 peaks and dentin caries. It may be concluded that the higher the fluorescence detected by Diagnodent the lower the peaks of phosphate apatite and fluoridated apatite. As the early diagnosis of caries is directly related to the identification of changes in the inorganic tooth components, Raman spectroscopy was more sensitive to variations of these components than Diagnodent.
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11
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Reyes A, Ferreira GE, Santos J, Mendes FM, Imparato JCP, Braga MM. Can the individual calibration be modified when laser fluorescence method is used for caries detection? Int J Paediatr Dent 2013; 23:138-44. [PMID: 22512546 DOI: 10.1111/j.1365-263x.2012.01236.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Individual calibration (IC) for caries detection methods based on fluorescence is time-consuming, especially for paediatric dentists, if the calibration has to be performed tooth-by-tooth. However, it is not clear how this calibration actually interfere in laser fluorescence (LF) readings. AIM This in vivo study was to verify the influence of different modes of IC on laser fluorescence (LF) readings. DESIGN Ninety six occlusal and 95 buccal surfaces of 1st permanent molars were examined using LF device after IC performed on control (no IC), the examined teeth, a permanent incisor, a 1st primary molar or a 2nd primary molar. All modes of IC were performed in the same child. Wilcoxon test and Bland-Altman analysis were used to compare the readings. Intraclass correlation coefficients (ICC) were calculated. RESULTS Laser fluorescence readings without prior calibration were higher than readings performed after any mode of IC and resulted in different values of ICC. After other IC modes, the LF readings were statistically similar. CONCLUSION The absence of IC influences LF readings and LF reproducibility, but different IC methods can be considered in clinical practice.
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Affiliation(s)
- Alessandra Reyes
- Departmento de Ortodontia e Odontopediatria, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, Brazil
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12
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Pinheiro AL, Lopes CB, Pacheco MT, Brugnera A, Zanin FAA, Cangussú MCT, Silveira L. Raman Spectroscopy Validation of DIAGNOdent-Assisted Fluorescence Readings on Tibial Fractures Treated with Laser Phototherapy, BMPs, Guided Bone Regeneration, and Miniplates. Photomed Laser Surg 2010; 28 Suppl 2:S89-97. [DOI: 10.1089/pho.2009.2674] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Antonio L.B. Pinheiro
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Salvador, BA, Brazil
- Universidade Camilo Castelo Branco, São José dos Campos, SP, Brazil
- Instituto Nacional de Ciência e Tecnologia de Óptica e Fotônica, São Carlos, SP, Brazil
| | | | | | - Aldo Brugnera
- Universidade Camilo Castelo Branco, São José dos Campos, SP, Brazil
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Braga MM, de Benedetto MS, Imparato JCP, Mendes FM. New methodology to assess activity status of occlusal caries in primary teeth using laser fluorescence device. JOURNAL OF BIOMEDICAL OPTICS 2010; 15:047005. [PMID: 20799836 DOI: 10.1117/1.3463007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
An in vivo study was conducted to verify the ability of laser fluorescence (LF) to assess the activity status of occlusal caries in primary teeth, using different air-drying times. Occlusal sites (707) were examined using LF (DIAGNOdent) after air-drying for 3 s and 15 s, and the difference between readings (DIF15 s-3 s) was calculated. For concurrent validation of LF, visual criteria-Nyvad (NY) and Lesion Activity Assessment associated with the International Caries Detection and Assessment System (LAA-ICDAS)-were the reference standards for lesion activity. Histological exam using a pH-indicator dye (0.1% methyl red) was performed in 46 exfoliated/extracted teeth for criterion validation. LF readings and DIF15 s-3 s were compared using Kruskall-Wallis and Mann-Whitney tests. Receiver operating characteristic analyses were performed and validity parameters calculated, considering the caries activity assessment. Using NY, active lesions (3 s: 30.0+/-29.3; 15 s: 34.2+/-30.6) presented higher LF readings than inactive lesions (3 s: 17.0+/-16.3; 15 s: 19.2+/-17.3; p<0.05), different from LAA-ICDAS. Active cavitated caries resulted in higher LF readings (3 s: 50.3+/-3.5; 15 s: 54.7+/-30.2) than inactive cavitated caries (3 s: 19.9+/-16.3; 15 s: 22.8+/-16.8). Therefore, LF can distinguish cavitated active and inactive lesions classified by NY, but not by LAA-ICDAS; however, this difference might be related to the visual system rather than to LF. The air-drying time could be an alternative to improve the caries activity assessment; however, longer air-drying time is suggested to be tested subsequently.
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Affiliation(s)
- Mariana Minatel Braga
- Departmento de Ortodontia e Odontopediatria, Faculdade de Odontologia da Sao Paulo, Sao Paulo, SO, Brazil.
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14
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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. Lasers Med Sci 2010; 26:157-62. [PMID: 20157753 DOI: 10.1007/s10103-010-0757-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
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15
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Braga MM, Morais CC, Nakama RCS, Leamari VM, Siqueira WL, Mendes FM. In vitro performance of methods of approximal caries detection in primary molars. ACTA ACUST UNITED AC 2009; 108:e35-41. [DOI: 10.1016/j.tripleo.2009.05.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Revised: 05/25/2009] [Accepted: 05/26/2009] [Indexed: 11/17/2022]
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16
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Chu CH, Lo ECM, You DSH. Clinical diagnosis of fissure caries with conventional and laser-induced fluorescence techniques. Lasers Med Sci 2009; 25:355-62. [PMID: 19259758 PMCID: PMC2946546 DOI: 10.1007/s10103-009-0655-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2008] [Accepted: 02/05/2009] [Indexed: 11/30/2022]
Abstract
We studied the in vivo validity of dentinal fissure caries diagnosis by visual examination, bitewing radiography, and use of a laser-induced fluorescence device (DIAGNOdent). A total of 144 and second molars with macroscopically intact occlusal surfaces in 41 Chinese young adults were examined visually, by bitewing radiography, and by DIAGNOdent. Visual examination after pit and fissure opening was used as the reference standard. The sensitivity and specificity of detecting caries that had extended into the dentin were, respectively, 0.89 and 0.44 by visual detection of opacity or discoloration after air drying, 0.13 and 1.00 by bitewing radiography to detect radiolucency extending into the dentin, and 0.70 and 0.84 by DIAGNOdent testing with a cut-off score of 40. Caries detection by a combination of visual examination and DIAGNOdent had a sensitivity of 0.67 and specificity of 0.94. Receiver operating characteristic analysis showed that this combined approach was superior to the other methods.
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Affiliation(s)
- C H Chu
- The University of Hong Kong, 34 Hospital Road, Hong Kong, SAR, China.
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Francescut P, Zimmerli B, Lussi A. Influence of Different Storage Methods on Laser Fluorescence Values: A Two-Year Study. Caries Res 2006; 40:181-5. [PMID: 16707864 DOI: 10.1159/000092223] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2005] [Accepted: 07/19/2005] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to assess the influence on the infrared laser fluorescence response of some storage methods commonly used in dental research. Forty extracted permanent teeth, selected from a pool of frozen teeth, were divided into four groups of 10. Three groups were stored at 4 degrees C in 1% chloramine, 10% formalin or 0.02% thymol solution. The fourth group was stored at -20 degrees C (no storage solution added). Fluorescence measurements were performed at 14, 77, 113, 168, 232, 486 and 737 days. After 2 years, significant decreases in fluorescence (p<0.01) for the samples in formalin (-60%), chloramine (-72%) and thymol (-54%) were observed. The frozen teeth showed a slight but non-significant increase in fluorescence of 5% (p>0.01). Storing solutions have a significant influence on the fluorescence yield. Samples used for in vitro purposes stored frozen do not significantly change their fluorescence response. Thus, cut-off values obtained under the latter conditions could be extrapolated to the in vivo situation.
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Affiliation(s)
- P Francescut
- Department of Operative, Paediatric and Preventive Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.
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Angnes G, Angnes V, Grande RHM, Battistella M, Loguercio AD, Reis A. Occlusal caries diagnosis in permanent teeth: an in vitro study. Braz Oral Res 2006; 19:243-8. [PMID: 16491250 DOI: 10.1590/s1806-83242005000400002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reduction in caries prevalence has not occurred uniformly for all dental surfaces. As the occlusal surfaces are still the most likely sites for the development of lesions, new methods of diagnosis are still being evaluated. This study compared a laser fluorescence (LF) system (DIAGNOdent) with the Ekstrands visual system for in vitro detection of occlusal caries. A total of 57 extracted molars with macroscopically intact occlusal surfaces were selected. Two-examiners assessed 110 sites by visual inspection (VI) and LF. After ten days from the first measurement, all teeth were re-evaluated through the same methods by each examiner. Caries extension was histologically assessed (X 40). The methods were compared by means of sensitivity, specificity, intra- and inter-examiner reproducibility and area under the ROC curve. The kappas test showed good intra- and inter-examiner reproducibility for both methods. VI and LF showed similar sensitivities for both examiners, however, VI showed higher specificities than LF. The overall analysis, as demonstrated by the area under the ROC curve, showed that VI had a better performance than the LF device. It was concluded that the Ekstrands visual system is more reliable than the LF device. LF should be considered only as an adjuvant for occlusal caries diagnosis.
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Angnes V, Angnes G, Batisttella M, Grande RHM, Loguercio AD, Reis A. Clinical effectiveness of laser fluorescence, visual inspection and radiography in the detection of occlusal caries. Caries Res 2005; 39:490-5. [PMID: 16251794 DOI: 10.1159/000088185] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2004] [Accepted: 02/18/2005] [Indexed: 11/19/2022] Open
Abstract
The aim of this in vivo study was to compare a laser fluorescence (LF) device with Ekstrand's visual scoring system and radiographic assessment for detection of occlusal caries. Thirty-eight adults aged 19-35 years participated in the study; a total of 57 third molars with macroscopically intact occlusal surfaces were selected. Two examiners assessed 110 sites by visual inspection (VI), bitewing radiography (BW) and LF. Teeth were then extracted and caries extent assessed by histology. The detection methods were compared by means of sensitivity, specificity, inter-examiner reproducibility (kappa statistics) and area under the ROC curve. VI and LF had similar (p > 0.05) and superior sensitivities than BW (p < 0.05). VI and BW showed similar specificities, which was superior to LF. The inter-examiner reproducibility was good for VI and BW and moderate for LF. The area under ROC curves showed that VI was better than LF. It was concluded that Ekstrand's visual scoring system is the most valid method for caries diagnosis. LF should be considered an adjunct to caries diagnosis.
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Affiliation(s)
- V Angnes
- Department of Dental Materials and Operative Dentistry, University of Oeste de Santa Catarina (UNOESC), Joaçaba, Brazil
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