TiF4 gel effects on tubular occlusion of eroded/ abraded human dentin
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Microscopy Research and Technique
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This in situ study evaluated the tubular occlusion caused by 4% TiF4 gel on the surface of eroded/
abraded dentin. Sixty human dentin samples were eroded in vitro and assigned into six groups
(n510) according to the in situ surface treatment and number of cycling days: 4% TiF4 gel applied
once (TiF41), twice (TiF42), or three times (TiF43) followed by 2, 4, and 6 days of erosive/abrasive
in situ cycling, respectively. Control groups (no treatment) were subjected to 2 (C1), 4 (C2), and 6
(C3) days of erosive/abrasive in situ cycling only. A seventh group (n510) was comprised by in
vitro uneroded samples (UN), subjected to 6 days of in situ erosive/abrasive cycling. Each cycling
day consisted on six erosive (0.5% citric acid, pH 2.6) and one abrasive events. Environmental
scanning electron microscopy micrographs were taken. For all groups, blinded examiners assessed
dentin tubules occlusion using visual scores (0—unoccluded, 1—partially occluded by granular
deposits, 2—partially occluded by reduction in tubular lumen into diamond shape, 3—completely
occluded) on images captured prior and after the in situ phase. Scheirer-Ray-Hare test demonstrated
that treatments significantly affected tubule occlusion (p<.001). Dunn’s test showed that
tubule occlusion in TiF43 was significantly higher than in C1. Tubule occlusion in remaining groups
did not differ from that observed in groups TiF43 and C1. Tubule occlusion was significantly higher
after in situ phase. It may be suggested that TiF4, when applied three times, was able to positively
change tubule occlusion of dentin samples.
Como referenciar
MANTILLA, TAIS F.; SILVA, CAMILA V. da; RAMOS-OLIVEIRA, THAYANNE M.; TURSSI, CECILIA P.; RIBEIRO, MARTHA S.; FREITAS, PATRICIA M. de. TiF4 gel effects on tubular occlusion of eroded/ abraded human dentin. Microscopy Research and Technique, v. 80, p. 1-7, 2017. DOI: 10.1002/jemt.22915. Disponível em: http://repositorio.ipen.br/handle/123456789/27750. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.