title: Chemical treatment of the intra-canal dentin surface: a new approach to modify dentin hydrophobicity.
abstract: OBJECTIVE
  This study evaluated the hydrophobicity of dentin surfaces that were modified through chemical silanization with octadecyltrichlorosilane (OTS).
  
  
  METHODS
  An in vitro experimental study was performed using 40 human permanent incisors that were divided into the following two groups: non-silanized and silanized. The specimens were pretreated and chemically modified with OTS. After the chemical modification, the dentin hydrophobicity was examined using a water contact angle measurement (WCA). The effectiveness of the modification of hydrophobicity was verified by the fluid permeability test (FPT).
  
  
  CONCLUSIONS
  Statistically significant differences were found in the values of WCA and FPT between the two groups. After silanization, the hydrophobic intraradicular dentin surface exhibited in vitro properties that limit fluid penetration into the sealed root canal. This chemical treatment is a new approach for improving the sealing of the root canal system.
authors.affiliation: Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
authors.forename: Cesar
authors.initials: C
authors.lastname: Gaitan-Fonseca
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Collart-Dutilleul
authors.forename: Vincent
authors.initials: V
authors.lastname: Semetey
authors.forename: Olivier
authors.initials: O
authors.lastname: Romieu
authors.forename: Roel
authors.initials: R
authors.lastname: Cruz
authors.forename: Hector
authors.initials: H
authors.lastname: Flores
authors.forename: Frédéric
authors.initials: F
authors.lastname: Cuisinier
authors.forename: Elías
authors.initials: E
authors.lastname: Pérez
authors.forename: Amaury
authors.initials: A
authors.lastname: Pozos-Guillen
mesh_terms: D003763:Dental Leakage; D003786:Dental Pulp Cavity / Q000737:chemistry / Q000187:drug effects*; D003804:Dentin / Q000737:chemistry / Q000187:drug effects*; D003806:Dentin Permeability / Q000187:drug effects; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions / Q000187:drug effects*; D008855:Microscopy, Electron, Scanning; D015203:Reproducibility of Results; D012390:Root Canal Therapy / Q000379:methods*; D012821:Silanes / Q000737:chemistry*; D016369:Smear Layer; D013499:Surface Properties / Q000187:drug effects; D013997:Time Factors; D014092:Tooth Root / Q000737:chemistry / Q000187:drug effects
chemical_list: D012821:Silanes; C061189:octadecyltrichlorosilane
references.citation: Crit Rev Oral Biol Med. 2004 Nov 01;15(6):348-81
references.pmid: 15574679
references.citation: J Endod. 2006 Jul;32(7):601-23
references.pmid: 16793466
references.citation: J Biomed Mater Res B Appl Biomater. 2013 Jul;101(5):721-8
references.pmid: 23359546
references.citation: J Endod. 2007 Apr;33(4):391-8
references.pmid: 17368325
references.citation: Proc Natl Acad Sci U S A. 2009 Sep 8;106(36):15148-53
references.pmid: 19706483
references.citation: Int Endod J. 2002 Dec;35(12):979-84
references.pmid: 12653315
references.citation: Int Endod J. 2001 Jan;34(1):1-10
references.pmid: 11307374
references.citation: J Can Dent Assoc. 2009 Mar;75(2):123
references.pmid: 19267963
references.citation: J Prosthet Dent. 1988 Sep;60(3):292-7
references.pmid: 3050047
references.citation: Aust Endod J. 2007 Apr;33(1):18-22
references.pmid: 17461836
references.citation: Dent Mater. 2009 Sep;25(9):1116-21
references.pmid: 19376572
references.citation: J Endod. 2001 Jan;27(1):36-9
references.pmid: 11487161
references.citation: J Appl Oral Sci. 2011 Oct;19(5):517-20
references.pmid: 21986657
references.citation: J Oral Sci. 2006 Sep;48(3):93-8
references.pmid: 17023739
references.citation: Eur J Dent. 2007 Apr;1(2):97-103
references.pmid: 19212484
references.citation: Braz Dent J. 2007;18(1):20-3
references.pmid: 17639195
references.citation: Dent Mater. 2006 Feb;22(2):189-94
references.pmid: 16039707
references.citation: Crit Rev Oral Biol Med. 2004 Jan 1;15(2):99-114
references.pmid: 15059945
references.citation: Int J Prosthodont. 2004 Mar-Apr;17(2):155-64
references.pmid: 15119865
references.citation: J Am Dent Assoc. 2005 Feb;136(2):187-93; quiz 231
references.pmid: 15782522
references.citation: J Mater Sci Mater Med. 2009 Mar;20(3):667-72
references.pmid: 18941869
references.citation: Br Dent J. 2011 Jul 22;211(2):81-8
references.pmid: 21779066
references.citation: J Conserv Dent. 2011 Apr;14(2):173-7
references.pmid: 21814361
references.citation: J Conserv Dent. 2012 Apr;15(2):109-12
references.pmid: 22557805
references.citation: J Endod. 2010 Jan;36(1):105-9
references.pmid: 20003945
references.citation: Philos Trans A Math Phys Eng Sci. 2009 Apr 28;367(1893):1487-509
references.pmid: 19324720
references.citation: Gen Dent. 2008 Jan-Feb;56(1):56-9
references.pmid: 18254561
references.citation: Dent Mater. 2010 Sep;26(9):881-90
references.pmid: 20580419