Comparison of the Bone Harvesting Capacity of an Intraoral Bone Harvesting Device and Three Different Implant Drills

Table 1

Characteristics of each drill group.

Group	Drill shape	Flute number	Diameter (mm)	Length (mm)
1	Straight	2	4.0	14 (stopper 4 mm)
2	Parallel, twist	2	2.5	11
	Parallel, twist	2	3.2	11
	Parallel, twist	2	3.7	11
3	Parallel, twist	3	2.2	10
	Parallel, twist	3	2.8	10
	Parallel, twist	3	3.5	10
4	Parallel, twist	2	2	11
	Tapered, straight	5	3.3	11
	Tapered, straight	5	3.8	11