表 2.

后牙区印模与标准参考模型间RMS偏差(x±s)

RMS of the posterior region between impression and master model(x±s)  /μm

Group	BC	GD	CC	P value
BC, blank control; GD, glutaraldehyde; CC, Cavicide; VSE, vinylpolysiloxane; POE, polyether; ALG, alginate.
VSE	27.1±6.7	29.2±10.0	26.4±7.7	0.733
POE	43.0±20.9	40.2±24.2	45.4±19.4	0.827
ALG	43.3±23.2	60.9±20.4	47.2±21.4	0.037