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Calcium hydroxide retention in wide root canals with flaring apices
Author(s) -
Metzger Z.,
Solomonov M.,
Mass E.
Publication year - 2001
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1034/j.1600-9657.2001.017002086.x
Subject(s) - apexification , calcium hydroxide , radiodensity , root canal , barium sulfate , dentistry , barium , chemistry , calcium , barium sulphate , barium hydroxide , materials science , radiography , medicine , surgery , inorganic chemistry , radiochemistry , organic chemistry
– Calcium hydroxide (CH) is used to induce apexification in immature, pulpless teeth with wide root canals and flaring apices. Three placement methods of CH were compared in vitro , for their ability to enhance CH retention in the canal. Barium sulfate (BS), added as radiopacifier, was studied for its effects on the radiographic follow up of CH retention, as well as on the ability to detect voids in the CH. Calcium hydroxide filled teeth were kept in phosphate buffered saline‐containing tubes in a shaker water bath. Radiographs were taken weekly to follow the retention or loss of the material; they were scanned and stored as digitized images. Quantitative evaluations were done on these images, using a computerized gray scale. Condensed CH was better retained in root canals than either lentulo‐placed paste or commercial injected paste. Barium sulfate in the CH paste enabled better detection of voids in the paste filling the canal, however, it obscured the disappearance of CH from the canal, due to a residual radiopacity effect. The results supported (a) condensation of calcium hydroxide as a preferred method that improves its retention in wide root canals, and (b) discontinuing the use of barium sulfate as a radiopacifier in apexification procedures.