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Rodrigues JA, Sarti CS, Assunção CM, Arthur RA, Lussi A, Diniz MB. Evaluation of laser fluorescence in monitoring non-cavitated caries lesion progression on smooth surfaces in vitro. Lasers Med Sci 2017; 32:1793-1800. [PMID: 28669068 DOI: 10.1007/s10103-017-2262-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/11/2017] [Indexed: 10/19/2022]
Abstract
The aim of this study was to evaluate the performance of a pen-type laser fluorescence (LF) device (LFpen: DIAGNOdent pen) to detect and monitor the progression of caries-like lesions on smooth surfaces. Fifty-two bovine enamel blocks were submitted to three different demineralisation cycles for caries-like lesion induction using Streptococcus mutans, Lactobacillus casei and Actinomyces naeslundii. At baseline and after each cycle, the enamel blocks were analysed under Knoop surface micro-hardness (SMH) and an LFpen. One enamel block after each cycle was randomly chosen for Raman spectroscopy analysis. Cross-sectional micro-hardness (CSMH) was performed at different depths (20, 40, 60, 80 and 100 μm) in 26 enamel blocks after the second cycle and 26 enamel blocks after the third cycle. Average values of SMH (± standard deviation (SD)) were 319.3 (± 21.5), 80.5 (± 31.9), 39.8 (± 12.7), and 29.77 (± 10.34) at baseline and after the first, second and third cycles, respectively. Statistical significant difference was found among all periods (p < 0.01). The LFpen values were 4.3 (± 1.5), 7.5 (± 9.4), 7.1 (± 7.1) and 5.10 (± 3.58) at baseline and after the first, second, and third cycles, respectively, among all periods (p < 0.05). The CSMH values after the second and third cycles at 20, 40, 60, 80 and 100 μm were 182.8 (± 69.8), 226.1 (± 79.6), 247.20 (± 69.36), 262.35 (± 66.36) and 268.45 (± 65.49), and for the third cycle were 193.7 (± 73.4), 239.5 (± 81.5), 262.64 (± 82.46), 287.10 (± 78.44) and 284.79 (± 72.63) (n = 24 and 23), respectively. No correlation was observed between the LFpen and SMH values (p > 0.05). One sample of each cycle was characterised through Raman spectroscopy analysis. It can be concluded that LF was effective in detecting the first demineralisation on enamel; however, the method did not show any effect in monitoring lesion progression after three cycles of in vitro demineralisation.
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Affiliation(s)
- J A Rodrigues
- Department of Pediatric Dentistry, School of Dentistry of Rio Grande do Sul Federal University - UFRGS, Porto Alegre, RS, Brazil.
| | - C S Sarti
- Department of Pediatric Dentistry, School of Dentistry of Rio Grande do Sul Federal University - UFRGS, Porto Alegre, RS, Brazil
| | - C M Assunção
- Department of Pediatric Dentistry, School of Dentistry of Rio Grande do Sul Federal University - UFRGS, Porto Alegre, RS, Brazil
| | - R A Arthur
- Department of Public Health, School of Dentistry of Rio Grande do Sul Federal University - UFRGS, Porto Alegre, RS, Brazil
| | - A Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - M B Diniz
- Department of Pediatric Dentistry, School of Dentistry of Cruzeiro do Sul University - UNICSUL, São Paulo, SP, Brazil
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Sundfeld D, Machado LS, Franco LM, Salomão FM, Pini NIP, Sundefeld MLMM, Pfeifer CS, Sundfeld RH. Clinical/Photographic/Scanning Electron Microscopy Analysis of Pit and Fissure Sealants After 22 Years: A Case Series. Oper Dent 2017; 42:10-18. [DOI: 10.2341/15-237-c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Pit and fissure sealant is a clinical technique adopted to prevent caries lesion development. Ionomeric and/or resin-based materials are commonly used for this purpose. This article presents a case series of sealed teeth with 22-year follow-up evaluated by clinical, photographic, and microscopic analysis. In 1992, sixteen patients (9-14 years of age) had at least three teeth sealed with one of the following materials: resin-modified glass ionomer cement (RMGIC, Vitrebond or Fuji II LC) or polyacid-modified resin composite (PMRC, VariGlass VLC), totaling 86 sealed permanent teeth. After 22 years, 10 patients were recalled, representing 41 teeth. The retention of sealants was assessed by three methods: clinical analysis by visual inspection; photography; and scanning electron microscope (SEM) images and classified as retained (pits and fissures filled by sealant material); partially retained (pits and fissures partially filled by sealant material); or totally lost (no material was found in pits and fissures). The SEM images provided a higher number of retained sealants when compared with the clinical and photographic evaluations. Also, no totally lost scores were found with SEM analysis, regardless of the sealing material. No caries lesions were found. A fully or partially retained sealant in pits and fissures was capable of preventing caries lesions after 22 years within the patient pool analyzed.
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Affiliation(s)
- D Sundfeld
- Daniel Sundfeld, DDS, MDS, PhD student, Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - LS Machado
- Lucas Silveira Machado, DDS, MDS, PhD, professor, Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - LM Franco
- Laura Molinar Franco, DDS, MDS, PhD student, Department of Restorative Dentistry, Araçatuba Dental School, State University of São Paulo, Araçatuba, Brazil
| | - FM Salomão
- Fabio Martins Salomão, DDS, MDS, PhD student, Department of Restorative Dentistry, Araçatuba Dental School, State University of São Paulo, Araçatuba, Brazil
| | - NIP Pini
- Núbia Inocência Pavesi Pini, DDS, MDS, PhD, temporary professor, Department of Restorative Dentistry, Araçatuba Dental School, State University of São Paulo, Araçatuba, Brazil
| | - MLMM Sundefeld
- Maria Lúcia Marçal Mazza Sundefeld, DDS, MDS, PhD, professor, Department of Pediatric and Community Dentistry, Araçatuba Dental School, State University of São Paulo, Araçatuba, Brazil
| | - CS Pfeifer
- Carmem Silvia Pfeifer, DDS, PhD, professor, Department of Restorative Dentistry, Division of Biomaterials and Biomechanics, Oregon Health and Science University, Portland, OR, USA
| | - RH Sundfeld
- Daniel Sundfeld, DDS, MDS, PhD student, Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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3
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Inhibition of enamel mineral loss by fissure sealant: An in situ study. J Dent 2013; 41:42-50. [DOI: 10.1016/j.jdent.2012.09.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 09/22/2012] [Accepted: 09/28/2012] [Indexed: 11/21/2022] Open
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Lauris JRP, da Silva Bastos R, de Magalhaes Bastos JR. Decline in dental caries among 12-year-old children in Brazil, 1980–2005. Int Dent J 2012; 62:308-14. [DOI: 10.1111/j.1875-595x.2012.00124.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 04/23/2012] [Indexed: 11/26/2022] Open
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Arruda AO, Senthamarai Kannan R, Inglehart MR, Rezende CT, Sohn W. Effect of 5% fluoride varnish application on caries among school children in rural Brazil: a randomized controlled trial. Community Dent Oral Epidemiol 2011; 40:267-76. [DOI: 10.1111/j.1600-0528.2011.00656.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Huew R, Waterhouse PJ, Moynihan PJ, Maguire A. Prevalence and severity of dental caries in Libyan schoolchildren. Int Dent J 2011; 61:217-23. [DOI: 10.1111/j.1875-595x.2011.00060.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Colussi PRG, Haas AN, Oppermann RV, Rösing CK. Consumo de dentifrício e fatores associados em um grupo populacional brasileiro. CAD SAUDE PUBLICA 2011; 27:546-54. [DOI: 10.1590/s0102-311x2011000300014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 01/17/2011] [Indexed: 11/21/2022] Open
Abstract
Este estudo transversal avaliou o consumo de dentifrício fluoretado e fatores associados em Passo Fundo, Rio Grande do Sul, Brasil. Seiscentos e oitenta e oito domicílios foram selecionados. Um questionário estruturado foi respondido pela mãe para obter dados demográficos, hábitos e consumo de dentifrício. O consumo foi avaliado por intermédio da duração de um tubo de dentifrício e considerado baixo (duração > 1 mês) e alto (duração < 1 mês). Modelos de regressão logística avaliaram a associação do consumo com variáveis independentes. Foi observado que 61,2% dos domicílios apresentaram alto consumo de dentifrício. No modelo multivariado, idade da mãe > 50 anos (OR = 1.62; IC95% 1,02-2,61), frequência de escovação da mãe (OR = 2,53; IC95%: 1,53-4,16), número de moradores que utilizam escova (OR = 5,69; IC95%: 3,68-8,81) e motivo cosmético para escolha do dentifrício (OR = 1,64; IC95%:1,03-2,61) representaram maior chance de alto consumo de dentifrício. Conclui-se que a maioria dos domicílios apresenta consumo elevado de dentifrício, associado com idade e frequência de escovação da mãe, número de moradores e motivos de escolha.
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Bastos RS, Silva RPR, Maia-Junior AF, Carvalho FS, Merlini S, Caldana ML, Lauris JRP, Bastos JRM. Dental caries profile in Monte Negro, Amazonian state of Rondônia, Brazil, in 2008. J Appl Oral Sci 2010; 18:437-41. [PMID: 21085797 PMCID: PMC4246372 DOI: 10.1590/s1678-77572010000500002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Accepted: 09/28/2009] [Indexed: 12/04/2022] Open
Abstract
Objective This epidemiological survey assessed the dental caries profile in Monte Negro, a
small town in the Amazonian state of Rondônia, Brazil, and its relationship
with the northern region, national and global goals for oral health in the years
2000 and 2020. Material and Methods The groups randomly examined were composed of individuals aged 5, 12, 15 to 19, 35
to 44, 65 to 74 years, living in both rural and urban areas. Results The means dft (standard deviation) and DMFT (standard deviation) for the groups
were, respectively, 3.15 (3.12), 3.41 (2.69), 5.96 (4.19), 16.00 (7.30) and 25.96
(9.82). Caries-free individuals were 34.42%, 14.81% and 8.16% in the
preschoolchildren, schoolchildren and adolescent groups, respectively. The
Significant Caries Index percentages applied to the two younger groups were 6.65
and 6.70, and they increased to 32.00 in the individuals aged 65 to 74 years. Care
Index percentages for adolescents, adults and elderly groups were, respectively,
29.40, 25.00 and 1.41. The dental caries profile in Monte Negro in 2008 shows
that, 8 years after the year 2000, no FDI/WHO goal for any age settled in 1982 has
been achieved. Dental caries increased with age and the main dental problem of
adult and elderly groups was tooth loss. Conclusion Oral health promotion and prevention of oral disease policies are urgent needs.
Setting of oral health goals and targets to people living in Monte Negro or
Amazonia to be pursuit and achieved in a near future is an important action to do
because of the culture, sanitary conditions and socioeconomic aspects of this
particular population.
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Affiliation(s)
- Roosevelt Silva Bastos
- Department of Pediatric Dentistry, Orthodontics and Community Health, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
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