6533b86dfe1ef96bd12c9662
RESEARCH PRODUCT
Sealing ability of five different retrograde filling materials.
Wilfried WagnerFrank Gerhardssubject
Dye penetrationZinc Phosphate CementMaterials scienceDentistryMandibleGold foilDental AmalgamApicectomyStatistics NonparametricRoot Canal Filling Materialsstomatognathic systemIncisorStereo microscopemedicineMaxillaHumansGeneral DentistryDental Leakagebusiness.industrySignificant differencetechnology industry and agricultureIncisorstomatognathic diseasesDrug Combinationsmedicine.anatomical_structureFilling materialsEvaluation Studies as TopicGlass Ionomer CementsRetrograde ObturationPolyvinylsZinc OxidebusinessBismuthZinc Phosphate Cementdescription
The sealing ability of Amalgam, Harvard-Cement, Diaket, gold-leaf, and Ketac-Endo as retrofilling materials was investigated. Paper cones were fixed with Harvard-Cement in the instrumented roots of 100 extracted human incisors. Apicectomy was performed and a 2-mm-deep retrograde cavity was prepared. Teeth were assigned to five groups (n = 20); each group received a different filling material. Surfaces of the roots were isolated with nail polish. Teeth, were stored in 1% methylene blue dye for 72 h. Roots were sectioned, and the depth of dye penetration was evaluated through a stereomicroscope. Retrofills with Ketac-Endo showed significantly less leakage compared with amalgam. There was no significant difference between the amalgam and Diaket groups. The sealing ability of Harvard-Cement and gold foil was lower than amalgam. It was concluded that retrograde fillings with Ketac-Endo or Diaket can be considered as alternatives for amalgam.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-09-01 | Journal of endodontics |