In situ effect of titanium tetrafluoride varnish on enamel demineralization
Braz. oral res. (Online)
; 31: e86, 2017. tab, graf
Article
in En
| LILACS
| ID: biblio-952118
Responsible library:
BR1.1
ABSTRACT
Abstract The effect of a 4% titanium tetrafluoride (TiF 4 ) varnish on enamel demineralization was evaluated. Twelve volunteers participated in this double-blind, randomized crossover study. Six enamel specimens were positioned in intraoral appliances throughout four treatment stages 4% TiF 4 varnish (experimental varnish), 5% sodium fluoride (NaF) varnish (Duraphat ® ), placebo varnish, and negative control (deionized water). After 24 h, the varnishes were removed and plaques were allowed to accumulate. A 20% sucrose solution was dripped onto enamel blocks (10x/day). Enamel alterations were analyzed by surface microhardness (SMH), percentage of surface loss (%SML), cross-sectional microhardness (CSMH), scanning electron microscopy (SEM), and energy dispersive X-ray spectrometry (EDS). Student's paired t-test was used for SMH analysis and repeated-measures analysis of variance (ANOVA) for %SML and CSMH (∆Z) analyses (p-value=0.05). The TiF 4 varnish group had lower %SML than the placebo and control groups (p=0.044 and p=0.003, respectively), thus showing its capacity to inhibit surface demineralization. TiF 4 and NaF varnishes demonstrated a protective effect against mineral loss on the enamel subsurface. Both were statistically different from the control group when CSMH was analyzed (p=0.000). A titanium dioxide film was observed on enamel surfaces of the TiF 4 group SEM images. EDS confirmed the presence of titanium in all TiF 4 samples. The 4% TiF 4 varnish is a promising compound capable of reacting with enamel to protect it against surface and subsurface demineralization.
Key words
Full text:
1
Index:
LILACS
Main subject:
Sodium Fluoride
/
Titanium
/
Cariostatic Agents
/
Tooth Demineralization
/
Dental Enamel
/
Fluorides
Type of study:
Clinical_trials
Limits:
Adult
/
Humans
Language:
En
Journal:
BOR
/
Braz Oral Res
/
Braz oral res
/
Braz. oral res
/
Braz. oral res. (Online)
/
Brazilian Oral Research (Online)
/
Brazilian oral research
/
Brazilian oral research (Impresso)
Journal subject:
ODONTOLOGIA
Year:
2017
Type:
Article