PMID: 9558510Apr 29, 1998Paper

Effect of calcium hydroxide dressing on seal of permanent root filling

Endodontics & Dental Traumatology
E G KontakiotisP R Wesselink

Abstract

Low apical leakage along root fillings following an application of calcium hydroxide was reported in a few methylene blue dye penetration studies. It has been found recently that methylene blue is decolored by calcium hydroxide, indicating that the short penetration of methylene blue may not be due to a tight seal only. Of the 80 roots of human maxillary central incisors used in this study, 40 roots (group 1) received calcium hydroxide root canal dressing whereas another 40 roots (group 2) did not. All the roots were then obturated with gutta-percha and Tubli-Seal sealer. Leakage along 20 filled roots in each group was measured using a modified fluid transport model at 48 h, 2, 4, 8 and 16 weeks after obturation; whereas leakage of another 20 filled roots in each group was measured using dye penetration with 1% methylene blue. Using the fluid transport model, no significant difference was found between the two groups at any time interval (P = 0.4847, 0.3875, 0.9490, 0.4786, 0.9148 respectively after 48 h, 2, 4, 8 and 16 weeks); using the methylene blue penetration method, leakage in group 1 (with root canal dressing) was significantly less than that in group 2 (without root canal dressing) (P = 0.0374). The contradiction in res...Continue Reading

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Citations

Jul 10, 1999·Journal of Dentistry·C J WhittersD Wood
Aug 11, 2009·Dental Materials Journal·Toshiko OzawaHarold H Messer
Mar 11, 2004·International Endodontic Journal·N HosoyaT Arai
Jan 27, 2012·Microscopy Research and Technique·Norberto Batista De Faria-JúniorMilton Carlos Kuga
Jun 12, 2010·International Endodontic Journal·T RödigM Hülsmann
May 27, 2006·Journal of Endodontics·David M KeneeBrian K Nichol
Aug 23, 2002·International Endodontic Journal·S K Kim, Y O Kim
Sep 15, 2001·International Endodontic Journal·F PérezJ F Péli
Jul 10, 2014·Brazilian Oral Research·Flávia Angélica GuiottiGisele Faria
Mar 12, 2015·Journal of Applied Oral Science : Revista FOB·Mark PhillipsWalter Bowles
Nov 18, 2005·Brazilian Oral Research·Mário Tanomaru FilhoJuliane Maria Guerreiro Tanomaru
Sep 1, 2005·Journal of Applied Oral Science : Revista FOB·Ivaldo Gomes de MoraesSilvana Beltrami Gonçalves
Mar 18, 2004·Journal of Oral Rehabilitation·S SevimayD Dalat
Dec 23, 2004·Journal of Endodontics·Stephen J CwiklaFrank J Vertucci
Sep 27, 2021·Microscopy Research and Technique·Patrícia Maria EscobarManoel Damião Sousa-Neto

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