Pulp tissue dissolution capacity of sodium hypochlorite combined with cetrimide and polypropylene glycol.
This study evaluated the influence of the addition of cetrimide and polypropylene glycol to sodium hypochlorite (NaOCl) on its capacity to dissolve pulp tissue. Bovine pulp fragments with standardized weight and volume were immersed for 5, 15 and 30 min in 2 mL of NaOCl and Hypoclean (NaOCl added with cetrimide and polypropylene glycol) solutions at 5.25%, 2.5%, 1%, 0.5% and 0.25% and afterwards re-weighted. Distilled water was used as a control. The percentage of tissue loss was considered for statistical analysis (univariate ANOVA, SPSS, v. 17.0) at 5% significance level. There was no tissue dissolution in the control group. NaOCl added with surfactants (Hypoclean) dissolved more pulp tissue (p<0.05) than NaOCl alone. Tissue dissolution was directly dependent on the concentration of solutions (p<0.05), and also on the time range (p<0.05). The combination of NaOCl at high and low concentrations with the surfactants cetrimide and polypropylene glycol increased significantly its capacity to dissolve pulp tissue.
Department of Semiology and Clinics, School of Dentistry, UNIPel - Federal University of Pelotas, PelotasRS, Brazil.
Luiza Helena Silva
LH
de Almeida
Department of Semiology and Clinics, School of Dentistry, UNIPel - Federal University of Pelotas, PelotasRS, Brazil.
Natália Gomes e Silva
NG
Leonardo
Department of Semiology and Clinics, School of Dentistry, UNIPel - Federal University of Pelotas, PelotasRS, Brazil.
Ana Paula Neutzling
AP
Gomes
Department of Endodontics, School of Dentistry, University of Torino, Italy.
Luciano
L
Giardino
School of Dentistry, Florence Institute, São LuisMA, Brazil.
Erick Miranda
EM
Souza
Department of Semiology and Clinics, School of Dentistry, UNIPel - Federal University of Pelotas, PelotasRS, Brazil.
Fernanda Geraldo
FG
Pappen
D000818:Animals; D002417:Cattle; D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry*; D003782:Dental Pulp / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011409:Propylene Glycols / Q000737:chemistry*; D012973:Sodium Hypochlorite / Q000737:chemistry*; D012995:Solubility
D002593:Cetrimonium Compounds; D011108:Polymers; D011409:Propylene Glycols; C012504:polypropylene glycol; D012973:Sodium Hypochlorite; D000077286:Cetrimonium