Following completion of canal shaping with rotary instrumentation and irrigation using 5 mL of 2.5% sodium hypochlorite (NaOCl), canals were flushed sequentially with 5 mL distilled water, 5 mL of 17% ethylenediaminetetraacetic acid (EDTA), another 5 mL of distilled water, 5 mL of 2.5% NaOCl, and finally 5 mL of distilled water. Canals were then dried using sterile paper points. Conventional calcium hydroxide (CH) paste was introduced into the canal using a Lentulo spiral. A sterile cotton pellet was placed in the pulp chamber, and the cavity was sealed with glass ionomer cement.

Following completion of canal shaping with rotary instrumentation and irrigation using 5 mL of 2.5% sodium hypochlorite (NaOCl), canals were flushed sequentially with 5 mL distilled water, 5 mL of 17% ethylenediaminetetraacetic acid (EDTA), another 5 mL of distilled water, 5 mL of 2.5% NaOCl, and finally 5 mL of distilled water. Canals were then dried using sterile paper points. Nanocalcium hydroxide (NCH) paste was placed into the canal using a Lentulo spiral to ensure uniform distribution. The access cavity was temporarily restored with a sterile cotton pellet and glass ionomer cement.

Following completion of canal shaping with rotary instrumentation and irrigation using 5 mL of 2.5% sodium hypochlorite (NaOCl), canals were flushed sequentially with 5 mL distilled water, 5 mL of 17% ethylenediaminetetraacetic acid (EDTA), another 5 mL of distilled water, 5 mL of 2.5% NaOCl, and finally 5 mL of distilled water. The cavity was sealed temporarily with a sterile cotton pellet and glass ionomer cement. Conventional calcium hydroxide was retained for 7 days before final obturation.

The visual analog scale for pain is a straight line with one end meaning no pain (0) and the other end meaning the worst pain (10) imaginable. A patient marks a point on the line that matches the amount of pain he or she feels. It may be used to help choose the right dose of pain medicine. Also called VAS.