| Abstract | INTRODUCTION: The aim of this investigation was to use quantitative light-induced fluorescence to study the natural behavior of white-spot lesions that developed in orthodontic patients during treatment with fixed orthodontic appliances, after the removal of those appliances. METHODS: The sample comprised 58 consecutively recruited patients who were at least 12 years old and who had been treated with a fixed appliance for at least 1 year in the department of orthodontics at the Academic Center for Dentistry Amsterdam, The Netherlands. They were examined with quantitative light-induced fluorescence for the presence and the extent of caries on the buccal surfaces of their teeth directly after debonding and 6 weeks and 6 months later. The fluorescence loss (DeltaF [%]) and area of lesions (mm2) were determined for all lesions found. RESULTS: A total of 421 carious lesions were recorded at debracketing with an average fluorescence loss (DeltaF(0)) of 10.3% (SD, 5.4%). During the study, 15 lesions were lost from quantitative light-induced fluorescence analysis: 11 lesions (DeltaF(MAX,0) >25%) in 2 subjects were restored, and 4 were not analyzed because they were not imaged properly. Lesions varied from incipient, ie, white spot (DeltaF(0) <10%, n = 257), to advanced, ie, dentinal (DeltaF(0) >25%, n = 12). A small lesion improvement was seen 6 weeks after debracketing (P <.01), and a further lesion improvement was seen after 6 months (P <.01). Incipient lesions on average showed a smaller improvement (relative decrease, 2%; SD, 20%) than lesions with DeltaF(0) >10% (relative decrease, 12%; SD, 20%; P <.01). CONCLUSIONS: The lesions that developed during orthodontic treatment improved once the fixed appliances were removed even when they were advanced, but the overall regression was small. |
| Authors | Monique H van der Veen, Thomas Mattousch, Johan G Boersma
(Affiliation: Department of Cariology Endodontology Pedodontology, Academic Center for Dentistry Amsterdam, The Netherlands. m.vd.veen at acta.nl)
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| Journal | American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics
(Am J Orthod Dentofacial Orthop)
Vol. 131
Issue 2
Pg. 223-8
(Feb 2007)
ISSN: 1097-6752 United States |
| PMID | 17276863
(Publication Type: Journal Article)
|
| Topics |
- Adolescent
- Analysis of Variance
- Child
- Dental Caries
(diagnosis, etiology, physiopathology)
- Diagnosis, Computer-Assisted
(methods)
- Disease Progression
- Female
- Fluorescence
- Follow-Up Studies
- Humans
- Light
(diagnostic use)
- Male
- Orthodontic Appliances
(adverse effects)
- Orthodontics, Corrective
(adverse effects)
- Remission, Spontaneous
- Sex Factors
|
