Calcium hydroxide retention in wide root canals with flaring apices

Z. Metzger*, M. Solomonov, E. Mass

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Calcium hydroxide (GH) 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.

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalDental Traumatology
Issue number2
StatePublished - 2001


  • Apexification
  • Barium sulfate
  • Calcium hydroxide
  • Endodontic treatment


Dive into the research topics of 'Calcium hydroxide retention in wide root canals with flaring apices'. Together they form a unique fingerprint.

Cite this