Fig. 6
From: Heat reduction during bone drilling using a two-stage drilling strategy
Comparison of drilling time versus bone temperature variation during pilot hole drilling with and without pre-drilling. (A) Pre-drilled hole: 2.5 mm; pilot hole: 3.2 mm (Dpre/Dpilot = 0.78); (B) Pre-drilled hole: 2.5 mm; pilot hole: 4.5 mm (Dpre/Dpilot = 0.55); (C) Pre-drilled hole: 3.2 mm; pilot hole: 4.5 mm (Dpre/Dpilot = 0.71).
