Each specimen was individually placed in a plastic container which contained buffered formalin 100 mL formalin at 37%, 900 mL distilled water, 0.4 mL monobasic sodium phosphate and 0.65 dibasic sodium phosphate. A periapical X-ray was taken before subjecting specimens to high temperatures.
Cada espécimen fue depositado de forma individual en un recipiente plástico que contenía formol buferado 100 mL de formol al 37%, 900 mL de agua destilada, 0.4 mL de sodio-fosfato monobásico y 0.65 mL de sodio-fosfato dibásico.