PubTransformer

A site to transform Pubmed publications into these bibliographic reference formats: ADS, BibTeX, EndNote, ISI used by the Web of Knowledge, RIS, MEDLINE, Microsoft's Word 2007 XML.

TiF4 varnish protects the retention of brackets to enamel after in vitro mild erosive challenge.

Abstract The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets to enamel and on the enamel microhardness around brackets under erosive challenge. Brackets were bonded to bovine incisors. Five groups were formed according to fluoride application (n=10): TiF4 varnish, TiF4 solution, NaF varnish, NaF solution and control (without application). The specimens were submitted to erosive challenge (90 s cola drink/2h artificial saliva, 4x per day for 7 days). Solutions were applied before each erosive cycle and varnishes were applied once. Vickers Microhardness (VHN) was obtained before and after all cycles of erosion and the percentage of microhardness loss was calculated. Shear bond strength, adhesive remnant index and polarized light microscopy were conducted after erosion. The data were analyzed by ANOVA, Tukey, Kruskal-Wallis and Mann-Whitney U tests (α=0.05). The %VHN had no statistically significant differences among the experimental groups. However, considering the comparisons of all groups with the control group, TiF4 varnish showed the highest protection from enamel demineralization (effect size of 2.94, while the effect size for the other groups was >2.4). The TiF4 varnish group had significantly higher shear bond strength compared to other groups. There was no difference among groups for adhesive remnant index. Polarized light microscopy showed higher demineralization depth for the control group. Application of NaF and TiF4 agents during mild erosive challenge minimized the enamel mineral loss around brackets, however only the experimental TiF4 varnish was able to prevent the reduction of shear bond strength of brackets to enamel.
PMID
Related Publications

TiF4 and NaF varnishes as anti-erosive agents on enamel and dentin erosion progression in vitro.

Evaluation of fluoride release from experimental TiF4 and NaF varnishes in vitro.

Effect of a Single Application of TiF4 Varnish versus Daily Use of a Low-Concentrated TiF4/NaF Solution on Tooth Erosion Prevention in vitro.

The effect of an experimental 4% Tif4 varnish compared to NaF varnishes and 4% TiF4 solution on dental erosion in vitro.

Thickness and nanomechanical properties of protective layer formed by TiF4 varnish on enamel after erosion.

Authors

Mayor MeshTerms

Orthodontic Brackets

Keywords
Journal Title journal of applied oral science : revista fob
Publication Year Start




PMID- 29768522
OWN - NLM
STAT- MEDLINE
DCOM- 20180529
LR  - 20180529
IS  - 1678-7765 (Electronic)
IS  - 1678-7757 (Linking)
VI  - 26
DP  - 2018 May 14
TI  - TiF4 varnish protects the retention of brackets to enamel after in vitro mild
      erosive challenge.
PG  - e20170222
LID - S1678-77572018000100451 [pii]
LID - 10.1590/1678-7757-2017-0222 [doi]
AB  - The effect of fluoride agents on the retention of orthodontic brackets to enamel 
      under erosive challenge is little investigated. The aim of this study was to
      evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF)
      agents on the shear bond strength of brackets to enamel and on the enamel
      microhardness around brackets under erosive challenge. Brackets were bonded to
      bovine incisors. Five groups were formed according to fluoride application
      (n=10): TiF4 varnish, TiF4 solution, NaF varnish, NaF solution and control
      (without application). The specimens were submitted to erosive challenge (90 s
      cola drink/2h artificial saliva, 4x per day for 7 days). Solutions were applied
      before each erosive cycle and varnishes were applied once. Vickers Microhardness 
      (VHN) was obtained before and after all cycles of erosion and the percentage of
      microhardness loss was calculated. Shear bond strength, adhesive remnant index
      and polarized light microscopy were conducted after erosion. The data were
      analyzed by ANOVA, Tukey, Kruskal-Wallis and Mann-Whitney U tests (alpha=0.05).
      The %VHN had no statistically significant differences among the experimental
      groups. However, considering the comparisons of all groups with the control
      group, TiF4 varnish showed the highest protection from enamel demineralization
      (effect size of 2.94, while the effect size for the other groups was >2.4). The
      TiF4 varnish group had significantly higher shear bond strength compared to other
      groups. There was no difference among groups for adhesive remnant index.
      Polarized light microscopy showed higher demineralization depth for the control
      group. Application of NaF and TiF4 agents during mild erosive challenge minimized
      the enamel mineral loss around brackets, however only the experimental TiF4
      varnish was able to prevent the reduction of shear bond strength of brackets to
      enamel.
FAU - Medeiros, Maria Isabel Dantas de
AU  - Medeiros MID
AD  - Universidade Federal da Paraiba, Programa de Pos-Graduacao em Odontologia, Joao
      Pessoa, Paraiba, Brasil.
FAU - Carlo, Hugo Lemes
AU  - Carlo HL
AD  - Universidade Federal de Juiz de Fora, Departamento de Odontologia, Governador
      Valadares, Minas Gerais, Brasil.
FAU - Santos, Rogerio Lacerda Dos
AU  - Santos RLD
AD  - Universidade Federal de Juiz de Fora, Departamento de Odontologia, Governador
      Valadares, Minas Gerais, Brasil.
FAU - Sousa, Frederico Barbosa
AU  - Sousa FB
AD  - Universidade Federal da Paraiba, Programa de Pos-Graduacao em Odontologia, Joao
      Pessoa, Paraiba, Brasil.
FAU - Castro, Ricardo Dias de
AU  - Castro RD
AD  - Universidade Federal da Paraiba, Programa de Pos-Graduacao em Odontologia, Joao
      Pessoa, Paraiba, Brasil.
FAU - Franca, Renata Cristina Sobreira
AU  - Franca RCS
AD  - Universidade Federal da Paraiba, Programa de Pos-Graduacao em Odontologia, Joao
      Pessoa, Paraiba, Brasil.
FAU - Carvalho, Fabiola Galbiatti de
AU  - Carvalho FG
AD  - Universidade Federal de Juiz de Fora, Departamento de Odontologia, Governador
      Valadares, Minas Gerais, Brasil.
LA  - eng
PT  - Evaluation Studies
PT  - Journal Article
DEP - 20180514
PL  - Brazil
TA  - J Appl Oral Sci
JT  - Journal of applied oral science : revista FOB
JID - 101189774
RN  - 0 (Cariostatic Agents)
RN  - 0 (Saliva, Artificial)
RN  - 8ZYQ1474W7 (Sodium Fluoride)
RN  - D1JT611TNE (Titanium)
RN  - Q80VPU408O (Fluorides)
RN  - T08RW8YRG1 (titanium tetrafluoride)
SB  - D
SB  - IM
MH  - Analysis of Variance
MH  - Animals
MH  - Cariostatic Agents/*chemistry
MH  - Cattle
MH  - Dental Bonding/*methods
MH  - Dental Enamel/chemistry/*drug effects
MH  - Fluorides/*chemistry
MH  - Hardness Tests
MH  - Materials Testing
MH  - Microscopy, Polarization
MH  - *Orthodontic Brackets
MH  - Reference Values
MH  - Reproducibility of Results
MH  - Saliva, Artificial/chemistry
MH  - Shear Strength
MH  - Sodium Fluoride/*chemistry
MH  - Statistics, Nonparametric
MH  - Surface Properties
MH  - Titanium/*chemistry
MH  - Tooth Demineralization/prevention & control
MH  - Tooth Erosion/*prevention & control
PMC - PMC5958938
EDAT- 2018/05/17 06:00
MHDA- 2018/05/31 06:00
CRDT- 2018/05/17 06:00
PHST- 2017/05/31 00:00 [received]
PHST- 2017/11/13 00:00 [accepted]
PHST- 2018/05/17 06:00 [entrez]
PHST- 2018/05/17 06:00 [pubmed]
PHST- 2018/05/31 06:00 [medline]
AID - S1678-77572018000100451 [pii]
AID - 10.1590/1678-7757-2017-0222 [doi]
PST - epublish
SO  - J Appl Oral Sci. 2018 May 14;26:e20170222. doi: 10.1590/1678-7757-2017-0222.