Pulp tissue dissolution capacity of sodium hypochlorite combined with cetrimide and polypropylene glycol. 2013

Luiza Helena Silva de Almeida, and Natália Gomes e Silva Leonardo, and Ana Paula Neutzling Gomes, and Luciano Giardino, and Erick Miranda Souza, and Fernanda Geraldo Pappen
Department of Semiology and Clinics, School of Dentistry, UNIPel - Federal University of Pelotas, PelotasRS, Brazil.

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.

UI MeSH Term Description Entries
D011108 Polymers Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS). Polymer
D011409 Propylene Glycols Derivatives of propylene glycol (1,2-propanediol). They are used as humectants and solvents in pharmaceutical preparations. Propanediols,Glycols, Propylene
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002593 Cetrimonium Compounds Cetyltrimethylammonium compounds that have cationic detergent, antiseptic, and disinfectant activities. They are used in pharmaceuticals, foods, and cosmetics as preservatives; on skin, mucous membranes, etc., as antiseptics or cleansers, and also as emulsifiers. These compounds are toxic when used orally due to neuromuscular blockade. Cetyltrimethylammonium Compounds,Cetrimides,Compounds, Cetrimonium,Compounds, Cetyltrimethylammonium
D003782 Dental Pulp A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992) Dental Pulps,Pulp, Dental,Pulps, Dental
D000077286 Cetrimonium Cetyltrimethylammonium compound whose salts and derivatives are used primarily as topical antiseptics. 1-Hexadecyltrimethylammonium Chloride,CTAB,CTAOH,Cetavlon,Cetrimide,Cetriminium,Cetrimonium Bromide,Cetrimonium Chloride,Cetrimonium Hydroxide,Cetrimonium Iodide,Cetrimonium Methosulfate,Cetrimonium Methyl Sulfate,Cetrimonium Monosulfate,Cetyltrimethylammonium Bromide,Cetyltrimethylammonium Chloride,HTAB Cpd,Hexadecyl Trimethyl Ammonium Bromide,Hexadecyl(trimethyl)azanium,Hexadecyltrimethylammonium Bromide,Hexadecyltrimethylammonium Octylsulfonate,Octylsulfonate, Hexadecyltrimethylammonium
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012973 Sodium Hypochlorite It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed) Antiformin,Clorox,Sodium Hypochlorite (Solution),Hypochlorite, Sodium
D012995 Solubility The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Solubilities

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