With regard to the site of F action, it is now considered most likely that F operates primarily on the dynamics of demineralisation and remineralisation
in the carious lesion [Wood et al., 2000].
Other studies reported that LF methods for occlusal caries are more efficient in primary than in permanent teeth, but concluded that laser fluorescence was not able either to detect in vitro remineralisation
of natural incipient caries lesions of primary teeth nor to monitor the quantification of mineral loss in caries lesions development in primary teeth [Mendes et al., 2003].
Another structural change it can induce is vitrification, a useful phenomenon because it increases hard tissue resistance to acid and dental abrasion and promotes remineralisation
of the dental tissue, increasing its hardness.
An ideal dental material would have, as one of its properties, the ability to prevent demineralisation and/or promote remineralisation
[Mjor and Toffenetti, 2000].
It was not possible to positively conclude that remineralisation
Therefore, the next layer of affected dentine, which has a lower number of microorganisms, but where the collagen fibers are intact, is left in the cavity as it can be repaired through remineralisation
[Fusayama, 1979; Massara et al., 2002].
(a better term may be mineralisation; the tooth was never 'completely' mineralised during development although there may also be an element of demineralisation from enamel caries, superimposed upon the hypomineralised areas) and desensitisation,
With these ions, demineralisation could be facilitated and remineralisation
could be more difficult results in a more stable crystal that is less soluble in acid.
Three in ten (30%) claimed the toothpaste aided remineralisation
, strengthening or fortification of the teeth, just over a quarter (28%) that it was low abrasiveness, nearly half it had a capacity for detoxification (46%) or antibacterial or antiseptic properties (44%), and an eighth (12%) it possessed antifungal benefits.