Highly Acid SnF₂and TiF₄Solutions

Abstract

In a previous in vitro study, a considerable fluoride uptake was found in scaled root surfaces following treatment with a TiF₄ solution (1.1 M F, pH 1.0). In spite of the low pH of the solution, no demineralization could be detected in the root tissue. This led to speculation that certain cations, known to act as complexers, might inhibit such demineralization. In the present experiment a SnF₂ solution (1.6 MF, pH 1,0) resulted in an even greater deposition of F in scaled root surfaces than the TiF₄ solution, but unlike the TiF₄ solution caused a marked subsurface demineralization. A hypothesis to explain this difference in interaction with the root tissue is offered.

The Effect of an Experimental 4% TiF₄Varnish Compared to NaF Varnishes and 4% TiF₄Solution on Dental Erosion in vitro

“…Enamel treated with the TiF 4 solution showed an etched appearance which is consistent with the small profilometric loss after treatment observed both in this study ( table 1 ) and also by Magalhães et al [2008]. This contrasts with the layer produced by treatment with the TiF 4 varnish, which probably provides a mechanical and chemical barrier, even though it has cracks [Tveit et al, 1983;Büyükyilmaz et al, 1997;Hove et al, 2006;Vieira et al, 2006]. Besides the layer on the enamel surface, TiF 4 -varnish-treated enamel had a higher surface concentration of both Ti and F than the TiF 4 -solution-treated surface.…”

“…Most studies focusing on the preventive effect of fluoride on erosion used fluoride compounds which have been applied over years in caries prevention, such as NaF, AmF, SnF 2 or acidulated phosphate fluoride. More recently, other agents, such as titanium tetrafluoride (TiF 4 ), have been investigated for erosion prevention [Tveit et al, 1983;Büyükyilmaz et al, 1997;van Rijkom et al, 2003;Vieira et al, 2005Vieira et al, , 2006Hove et al, 2006Hove et al, , 2007Schlueter et al, 2007;Magalhães et al, 2008].…”

Effect of an experimental 4% titanium tetrafluoride varnish on dental erosion by a soft drink

“…According to the literature, the beneficial action of TiF 4 solution on dental erosion has been attributed to its low pH (around 1.2), favoring the linking between titanium and oxygen of the group phosphate, thus leading to the formation of a titanium dioxide glaze-like layer on the surface. 18,21,22 It is probable that in the present study this protective layer have been rapidly removed due to the high erosive challenge, thus not allowing the observation of such a protective effect.…”

“…More recently, other agents such as titanium tetrafluoride (TiF 4 ) have been investigated for erosion prevention. [18][19][20][21][22][23][24][25] In respect to TiF 4 solution, in vitro studies have shown its inhibitory effect on erosion. 18,19,22,23 However, other studies have shown the opposite.…”

Protection of short-time enamel erosion by different tetrafluoride compounds

“…This might enhance the depth of penetration of fluoride ions and promote the formation of CaF 2 . The titanium ions might play an important role as they might substitute calcium in the apatite lattice and show a strong tendency to complex with phosphate groups, forming stable titanium dioxide layer [14][15][16] . Moreover, it is suggested that titanium interacts with organic components of the enamel surface, leading to an increased fluoride uptake by enamel.…”