Reinforcement of immature roots with a new resin filling material.
The purpose of this study was to compare the reinforcement and strengthening ability of Resilon, gutta-percha, and a self-curing composite resin (Bisfil 2B) in endodontically treated roots of immature teeth. Sixty single rooted teeth were divided into five groups of 12 teeth each. Teeth in all groups except the negative controls were prepared with a #5 Peeso (1.5 mm) through the apex (simulating immature roots) and root ends were filled with a 4 mm barrier of MTA. After smear layer removal, canals in the three experimental groups were backfilled with gutta-percha, Resilon, or Bisfil 2B. The remaining canal space in the positive control group was left unfilled. Negative controls received no treatment. A horizontal fracture was created in the root of each specimen using an Instron and the mean peak loads to fracture were recorded. ANOVA revealed no significant difference between any of the treatment groups. Based on the results of this study, canal wall reinforcement of teeth with a canal diameter of 1.5 mm or less may not be necessary.
Stuart
Charles H
CH
Department of Endodontics, Wilford Hall Medical Center, Lackland AFB, Texas 78236-5346, USA. charles.stuart@lackland.af.mil
Schwartz
Scott A
SA
Beeson
Thomas J
TJ
D000704:Analysis of Variance; D003188:Composite Resins; D003799:Dental Stress Analysis; D006171:Gutta-Percha; D006801:Humans; D008422:Materials Testing; D019279:Resin Cements; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials; D014082:Tooth Fractures / Q000517:prevention & control*; D014092:Tooth Root / Q000254:growth & development
D003188:Composite Resins; D019279:Resin Cements; D012387:Root Canal Filling Materials; C089258:Thermaseal Silverfree; C486892:resilon sealer; C078905:Bisfil; D006171:Gutta-Percha