APICAL THIRD FILLING
SimpliFill Obturation
Calcium Hydroxide Apical Filling.
Ø Mainly used where the apexification is desired
Ø It is thought to provoke the cementogenesis
Calcium-Phosphate Cement Obturation.
Ø More recently, Harbert has suggested using tricalcium phosphate as an apical plug,much like dentin shavings and calcium hydroxide have been used
Ø In testing the sealing ability of CPC when used as a root canal sealer-filler, the Paffenbarger group reported that in most of the specimens there was “no dye penetration into the filler-canal wall interface”
Ø Two calcium phosphate compounds, one acidic and one basic, are unique in that when mixed with water they set into a hardened mass”—hydroxyapatite—the principal mineral in teeth and bones
Ø Another possibility of using hydroxyapatite relates to the laser. A cross-linked collagen-hydroxyapatite mixture has been placed in the root canal and “melted” to place with a laser beam through a fiber optic.
Ø Another possibility of using hydroxyapatite relates to the laser. A cross-linked collagen-hydroxyapatite mixture has been placed in the root canal and “melted” to place with a laser beam through a fiber optic.
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