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Órgano Oficial de la Asociación Dental Mexicana

2005, Number 4

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Rev ADM 2005; 62 (4)

Comparison of calcium hydroxide as a temporary filling root canals, utilizing aqueous and viscous vehicles. In vitro studies

Silva-Herzog FD, Andrade VLM, Lainfiesta RJ

Language: Spanish
References: 12
Page: 137-141
PDF size: 85.02 Kb.


ABSTRACT

Calcium Hydroxide [Ca (OH2)] is a chemical compound used in endodontic treatment as a temporary filling inside root canals, there is no criteria that allows professionals in endodontics to identify and use the ideal vehicle for its combination, from it, the properties can be optimized among others; capacity to induce hard tissue formation, incidence to cause intratubular occlusion, antimicrobial action and tissue dissolution capacity. These properties are based in the ionic dissociation property of Calcium Hydroxide in Calcium and Hydroxyl ions. The purpose of this study was to analyze the behavior of Calcium Hydroxide with different vehicles with atomic absorption spectrophotometry and potentiometry, due to the relationship of a slow and sustained dissociation with it’s effect as a therapeutic agent in apicoformation treatments, elimination of microorganisms in infected root canals with peniapical lesions, subjects of concern in endodontics. In the four vehicles studied: propylene glycol, polyethylene glycol 400, glycerol and Physiologic Solution at different time intervals (24 h, 7, 15 and 30 days) was found that combined with Ca (OH2) the better behavior was achieved with propylene glycol, that released the most of Ca ions (580 Ppm) at 7 days followed by polyethylene glycol with 280 Ppm, Physiologic Solution showed 270 Ppm and Glycerol only released 16.6 Ppm. The Ph values were in the 12.07 to 12.78 range during the four time cycles.


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