Application of quantitative light-induced fluorescence to monitor incipient lesions in caries-active children. A comparative study of remineralisation by fluoride varnish and professional cleaning.

The aim of this study was to apply the quantitative light-induced fluorescence (QLF) method in a randomised controlled study, comparing treatment with fluoride varnish and professional tooth cleaning for remineralisation of white spot lesions in caries-active adolescents. In the fluoride varnish group (n = 13; 32 lesions), professional tooth-cleaning was followed by application of fluoride varnish at the beginning of the study, after 1 wk, and then once every 6 wk for 6 months. The other group (n = 18; 30 lesions) underwent professional tooth-cleaning once every 6 wk for 6 months. Enamel fluorescence was measured at baseline and at each visit. In the fluoride varnish group there was a significant change over time (baseline: 6 months) for both lesion area: and average change in fluorescence (decreased lesion area and increased fluorescence radiance). The corresponding changes in the professional tooth-cleaning group were not significant. There was a significant difference in average change in fluorescence between the two test groups. For lesion area, there was no significant difference, but a tendency towards a difference between the test groups. It was concluded that (a) the QLF method is a sensitive method, suitable for longitudinal quantification of incipient caries lesions on smooth surfaces; and (b) that repeated fluoride applications had a favourable effect on the remineralisation of white spot lesions as measured after 6 months.

[1]  M. Larsen,et al.  Some notes on the diffusion of acidic and alkaline agents into natural human caries lesions in vitro. , 1992, Archives of oral biology.

[2]  B. Angmar-Månsson,et al.  A longitudinal laser fluorescence study of white spot lesions in orthodontic patients. , 1998, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[3]  H. Sundberg,et al.  Changes in the prevalence of caries in children and adolescents in Sweden 1985-1994. , 1996, European journal of oral sciences.

[4]  J. T. ten Bosch,et al.  Invited Review: A Review of Quantitative Methods for Studies of Mineral Content of Intra-oral Incipient Caries Lesions , 1991 .

[5]  F. Sundström,et al.  Mineral loss in incipient caries lesions quantified with laser fluorescence and longitudinal microradiography. A methodologic study. , 1996, Acta odontologica Scandinavica.

[6]  C. Robinson,et al.  Assimilation of fluoride by enamel throughout the life of the tooth. , 1977, Caries research.

[7]  B Angmar-Månsson,et al.  Early detection of enamel caries by the luminescence excited by visible laser light. , 1982, Swedish dental journal.

[8]  F. Sundström,et al.  Comparison of laser fluorescence and longitudinal microradiography for quantitative assessment of in vitro enamel caries. , 1992, Caries research.

[9]  T. Fujiwara,et al.  Caries status in Europe and predictions of future trends. , 1990, Caries research.

[10]  B Angmar-Månsson,et al.  Laser fluorescence quantification of remineralisation in situ of incipient enamel lesions: influence of fluoride supplements. , 1997, Caries research.

[11]  J. M. ten Cate,et al.  Quantification of Formation and Remineralization of Artificial Enamel Lesions with a New Portable Fluorescence Device , 1997, Advances in dental research.

[12]  J. T. ten Bosch,et al.  Optical Methods for the Detection and Quantification of Caries , 1987, Advances in dental research.

[13]  M. Holbrook,et al.  Enamel fluoride uptake, distribution and retention from topical fluoride agents. , 1983, Caries research.

[14]  B Angmar-Månsson,et al.  A new method for in vivo quantification of changes in initial enamel caries with laser fluorescence. , 1995, Caries research.

[15]  J. Featherstone,et al.  Prevention and reversal of dental caries: role of low level fluoride. , 1999, Community dentistry and oral epidemiology.

[16]  B. Angmar-Mansson,et al.  Advances in Methods for Diagnosing Coronal Caries-a Review , 1993, Advances in dental research.