Techniques for Gutta Percha (GP) removal in retreatodontics (Part 1)

A nonsurgical technique for the removal of overextended gutta-percha.

AIM The present report describes and discusses a nonsurgical technique for the removal of overextended gutta-percha. BACKGROUND Mechanical irritation results from overextension and the overextended material used during root canal obturation could produce an inflammatory reaction with an area of rarefaction in the periapical tissues. The healing process is not affected by the presence of filli...

omparison Between Gutta-Percha and Resilon Removal sing Two Different Techniques in Endodontic etreatment

d f n w u t 3 E w M c a s c g bstract his study compared the remaining filling material and orking time when removing gutta-percha/AH 26 and esilon/Epiphany from root filled extracted teeth. The oot fillings were removed using chloroform and two ifferent rotary systems (K3 and Liberator files). The mount of residual filling material on the canal walls as imaged and measured using image analyzer...

The efficacy of gutta-percha removal using ProFiles.

AIM The purpose of this study was to compare the efficacy in vitro of gutta-percha removal from obturated root canals using ProFiles. METHODOLOGY Forty-eight human root canals with curvatures ranging between 25 and 45 degrees were instrumented by a standardized method to an apical ISO size 30 and 0.04 taper. They were obturated with vertically condensed gutta-percha. Retreatment was performed...

Long-Retained Gutta Percha Pessary

The thermomechanical properties of gutta-percha. I. The compressibility of gutta-percha.

Sample wafers of compounded dental gutta-percha and uncompounded dental-grade gutta-percha were compression tested to 20,000 pounds in uniaxial and triaxial systerns. Unrestrained flow in the uniaxial series prevented development of stress levels sufficient to produce molecular compression. Negligible molecular compression did occur in the triaxial series but only above a stress level of approx...