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A Modified Pretreatment with Deproteinization for Resin Infiltration in Early Childhood Caries

  • Journal of the Korean academy of pediatric dentistry
  • Abbr : J Korean Acad Pediatr Dent
  • 2018, 45(3), pp.290-298
  • DOI : 10.5933/JKAPD.2018.45.3.290
  • Publisher : The Korean Academy Of Pediatric Dentistry
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : December 1, 2017
  • Accepted : January 25, 2018
  • Published : August 31, 2018

Siyeon Nam 1 Shin, Jonghyun ORD ID 2 Tae-sung Jeong ORD ID 3 Shin Kim 3 Jiyeon Kim 3

1부산대학교 치과대학 소아치과학교실
2부산대학교 치의학전문대학원 소아치과학교실
3부산대학교

Accredited

ABSTRACT

This study aimed to evaluate surface morphology and resin tag penetration of resin infiltration into primary anterior teeth after enamel deproteinization with sodium hypochlorite (NaOCl) prior to phosphoric acid (H3PO4) etching. Ninety primary anterior teeth with non-cavitated caries lesion were devided five groups according to enamel pretreatment as follows, group Ⅰ-15% hydrochloric acid (HCl) 2min. ; group Ⅱ-5.25% NaOCl 1min., 35% H3PO4 1min. ; group Ⅲ-5.25% NaOCl 2min., 35% H3PO4 1min. ; group Ⅳ-5.25% NaOCl 1min., 35% H3PO4 2min. ; group Ⅴ-5.25% NaOCl 2min., 35% H3PO4 2min. Fifteen teeth were examined etched surface structure using field emission-scanning electron microscope. Seventy five teeth were infiltrated with resin, maximum penetration depth and percentage penetration were analysed using dual fluorescence confocal microscopy. As the application time of NaOCl increased, ratio of enamel type Ⅰ, Ⅱ were increased. Percentage penetration (PP) was higher in group Ⅴ than group Ⅱ, Ⅲ (p < 0.05). PP of group Ⅳ, Ⅴ did not show any differences. Non-cavitated caries of primary anterior teeth can be treated with resin infiltration. Enamel deproteinization with NaOCl prior to 35% H3PO4 etching could be an alternative of 15% HCl etching in resin infiltration.

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