Assessment of ion diffusion from a calcium hydroxide-propolis paste through dentin.
This study evaluated the ability of ions from a non-alcoholic calcium hydroxide-propolis paste to diffuse through dentinal tubules. Thirty-six single-rooted bovine teeth were used. The tooth crowns were removed, and the root canals were instrumented and divided into 3 groups: Group 1 - calcium hydroxide-propylene glycol paste; Group 2 - calcium hydroxide-saline solution paste; Group 3 - calcium hydroxide-propolis paste. After the root canal dressings were applied, the teeth were sealed and placed in containers with deionized water. The pH of the water was measured after 3, 24, 72 and 168 hours to determine the diffusion of calcium hydroxide ions through the dentinal tubules. All of the pastes studied promoted the diffusion of calcium hydroxide ions through the dentinal tubules. Associating propolis to calcium hydroxide resulted in a pH increase, which occurred with greater intensity after 72 hours. The calcium hydroxide-propolis paste was able to diffuse in dentin.
Endodontics Course, São Paulo Dental Association, Presidente Prudente, SP, Brazil.
Janaina Corazza
JC
Montero
Graziela Garrido
GG
Mori
D000818:Animals; D000890:Anti-Infective Agents / Q000737:chemistry / Q000493:pharmacokinetics*; D002126:Calcium Hydroxide / Q000737:chemistry / Q000493:pharmacokinetics*; D002417:Cattle; D003786:Dental Pulp Cavity / Q000737:chemistry / Q000187:drug effects; D003804:Dentin / Q000737:chemistry* / Q000187:drug effects; D004058:Diffusion; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000493:pharmacokinetics; D008422:Materials Testing; D011429:Propolis / Q000737:chemistry / Q000493:pharmacokinetics*; D018915:Root Canal Preparation; D013997:Time Factors
D000890:Anti-Infective Agents; D007477:Ions; D011429:Propolis; D002126:Calcium Hydroxide