ADS Calcium Hydroxide powder 1lb - #S883-10-5
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Description
ADS - CALCIUM HYDROXIDE POWDER - 1 lb
Lab. Accessories# 117702 - Mfg # S883-10
Features:
* POWDER of CALCIUM HYDROXIDE chemically pure
Quantity: 1 lb
CALCIUM HYDROXIDE was originally introduced to the field of endodontics by Herman1 in 1930 as a pulp-capping agent, but its uses today are widespread in endodontic therapy. It is the most commonly used dressing for treatment of the vital pulp.
Materials and therapeutic agents containing CALCIUM HYDROXIDE are used extensively in a variety of treatment modalities within endodontics and dental traumatology. The main purpose of this article is to review the properties and clinical applications of CALCIUM HYDROXIDE in endodontics and dental traumatology including its antibacterial activity, antifungal activity, effect on bacterial biofilms, the synergism between CALCIUM HYDROXIDE and other agents, its effects on the properties of dentine, the diffusion of hydroxyl ions through dentine, and its toxicity. The paper sets out initially to provide the background to the main clinical applications of CALCIUM HYDROXIDE (Ca(OH)2) and then focuses on its specific properties and more detailed uses.
CALCIUM HYDROXIDE
CALCIUM HYDROXIDE Cements are supplied in a visible light–cured system (Fig. 21.1A) and a two-paste system (Fig. 21.1B). A catalyst paste containing CALCIUM HYDROXIDE, zinc oxide, and zinc stearate in ethylene toluene sulfonamide reacts with a base paste containing CALCIUM tungstate, CALCIUM phosphate, and zinc oxide in glycol salicylate to form an amorphous CALCIUM disalicylate. The alkaline pH aids in preventing bacterial invasion. Studies have shown that CALCIUM HYDROXIDE “softens” under amalgam and resin-based composite restorations.1,2 The results are attributed to hydrolysis of the CALCIUM HYDROXIDE by fluid contamination from dentinal tubules and microleakage. As hydrolysis occurs, occlusal forces cause apical displacement of the restoration, leading to discrepancies and breakdown at the restoration margin. Visible light–cured CALCIUM HYDROXIDE preparations have demonstrated clinical success3 and may be less susceptible to hydrolysis. When CALCIUM HYDROXIDE is used, a less soluble high-strength base material such as glass ionomer may be placed to overlie the CALCIUM HYDROXIDE.
Endodontic sealers
Sealers are responsible for the principal functions of root fillings, which aim to prevent reinfection. That is, sealing the root canal system by entombing remaining bacteria and filling of irregularities in the prepared canal system. The rationale for the addition of CALCIUM HYDROXIDE to root canal sealers emanates from observations of Liners and bases containing Ca(OH)2 and their antibacterial and tissue repair abilities