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In vitro solubility of human pulp tissue in calcium hydroxide and sodium hypochlorite
Author(s) -
Andersen M.,
Lund A.,
Andreasen J. O.,
Andreasen F. M.
Publication year - 1992
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/j.1600-9657.1992.tb00445.x
Subject(s) - sodium hypochlorite , calcium hydroxide , pulp (tooth) , chemistry , sodium hydroxide , hypochlorite , root canal , solubility , calcium , brine , sodium , nuclear chemistry , solvent , pulp and paper industry , dentistry , biochemistry , inorganic chemistry , organic chemistry , medicine , engineering
The tissue solvent capacity of a 2% stabilized sodium hypochlorite solution (Milton®) and a commercial calcium hydroxide solution (Calasept®) was examined under in vitro conditions where autolyzed human pulp fragments weighing approximately 0.0065 g were immersed in these solutions at 37°C for periods of up to 10 days. It appeared that sodium hypochlorite was able to dissolve half the volume of pulp tissue within 1 h and the remaining tissue after 2–2 1/2 h. Calcium hydroxide dissolved half the pulp volume within 2 h, whereas it took 1 week for the remaining tissue to dissolve. These findings support the use of sodium hypochlorite as an irrigation solution during canal preparation and calcium hydroxide as a canal dressing for the purpose of creating a canal free of pulp remnants before root filling.