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Dentinal wall adaptation of thermoplasticized gutta-percha in the absence or presence of smear layer: a scanning electron microscopic study.

AbstractThe dentinal adaptation of injected thermoplasticized gutta-percha and thermoplasticized gutta-percha resulting from Ultrafil and Thermafil systems was evaluated by scanning electron microscopy and compared with adaptation obtained with the lateral condensation of gutta-percha. Each method was evaluated with and without the smear layer removed. Scanning electron microscopic observations showed the thermoplasticized gutta-percha resulting from either system to have better dentinal wall adaptation than lateral condensation of gutta-percha in either the absence or presence of the smear layer. In the absence of smear layer, the adaptation of gutta-percha was improved in all groups. Although sealer was used, removing the smear layer was found to enhance the ability of the thermoplasticized gutta-percha to enter the patent tubules.
AuthorsN Gençoğlu, S Samani, M Günday (Affiliation: Department of Endodontics, Marmara University, Faculty of Dentistry, Istanbul, Turkey.)
JournalJournal of endodontics (J Endod) Vol. 19 Issue 11 Pg. 558-62 (Nov 1993) ISSN: 0099-2399 UNITED STATES
PMID8151244 (Publication Type: Journal Article)
Chemical References
  • Gutta-Percha
Topics
  • Dental Pulp Cavity (ultrastructure)
  • Dentin (ultrastructure)
  • Gutta-Percha (chemistry)
  • Humans
  • Microscopy, Electron, Scanning
  • Root Canal Obturation (methods)
  • Smear Layer
  • Surface Properties