3.

Bego种植系统选择不同的备洞方法留取骨量比较

Comparison of harvest bone volume between two preparing methods with Bego system

Diameter of hole/mm	High speed with irrigation then low speed without irrigation/mg	Low speed without irrigation/mg	P
n=10.
2.8	4.61±3.39	28.95±5.39	<0.001
3.25	5.57±3.75	39.54±7.03	<0.001
3.65	6.92±3.77	48.44±8.14	<0.001
4.0	8.70±4.09	58.45±7.68	<0.001
4.7	13.67±5.53	85.07±12.64	<0.001