?:definition
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Dental materials designed for sealing during endodontic (i.e., root canal) procedures consisting of calcium hydroxide (CaOH) as the main component. These dental materials are supplied usually in different forms; as a liquid containing CaOH suspended in a solvent, as a paste in which CaOH is suspended in methylcellulose, and as a two-paste system in tubes marked \'catalyst\' and \'base,\' respectively. Calcium hydroxide dental materials usually provide protection to the pulp and promote the formation of secondary dentin. They have easy handling properties and are used in dentists\' offices.
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