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Softening Efficacy of Various Solvents on Gutta-percha and Root Canal Sealer
Umeå University, Faculty of Medicine, Department of Odontology.
Umeå University, Faculty of Medicine, Department of Odontology, School of Dentistry.
2016 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Solvents have been used in endodontic retreatment for a long time and the dissolving effect is well proven. Latterly chloroform has come in a bad light due to its possible carcinogenicity. Despite the negative health effect it is still used in dental environment. Other more biocompatible solvents have now reached the market and tests should be performed to evaluate the softening efficacy. The purpose of this in-vitro study was to evaluate the softening efficacy of four different solvents used in endodontics; chloroform, eucalyptol, tetrachloroethylene, orange-oil and a control group. 100 simulated canals filled with gutta-percha, epoxy amine resin based sealer, zinc oxide eugenol based sealer and non eugenolcalcium hydroxide based sealer were tested with hardness measurement before and after two minutes exposure time of medicament. Non-eugenol calcium hydroxide failed to set and was excluded from the test. A Shore A durometer was used to evaluate the hardness of the materials and all data was first analyzed with Kruskal-Wallis test and then Mann-Whitney test to compare with control group. With a digital camera connected to a microscope we also took pictures to compare the impressions with the different medicaments. The result showed that chloroform and tetrachloroethylene is significant better to soften gutta-percha than control group (p < 0.05) but only chloroform significant better than control group to soften epoxy amine resin based sealer and zinc oxide eugenol based sealer (p < 0.05). Even if the result was significant, we cannot draw any conclusions due to small sample size.

Place, publisher, year, edition, pages
2016. , 15 p.
Keyword [en]
Endodontic treatment, endodontic retreatment, gutta-percha solvent, chloroform endodontic, sealer antimicrobial
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:umu:diva-129389OAI: oai:DiVA.org:umu-129389DiVA: diva2:1059819
External cooperation
VLL
Educational program
Dentistry Programme
Supervisors
Examiners
Available from: 2017-01-11 Created: 2016-12-23 Last updated: 2017-01-11Bibliographically approved

Open Access in DiVA

Exarbete(800 kB)100 downloads
File information
File name FULLTEXT01.pdfFile size 800 kBChecksum SHA-512
a98e078f26a72bd7fa113d277eab3a06a94bd4335ac81dd09e597ad6a6abed52be519cea2fca099264421621c75a346d9e2ae014c9805f2a537c6a5d0ca49788
Type fulltextMimetype application/pdf

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Department of OdontologySchool of Dentistry
Medical and Health Sciences

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf