Surface roughness and characteristics of CAD/CAM zirconia and glass ceramics after combined treatment procedures

Sibel Dikicier; Cumhur Korkmaz; Arzu Atay

doi:10.1186/s12903-022-02389-7

PMC full text:

BMC Oral Health. 2022; 22: 524.

Published online 2022 Nov 23. doi: 10.1186/s12903-022-02389-7

Copyright/LicenseRequest permission to reuse

Table 2

Surface roughness values (Ra) of various surface treated all-ceramics

Group	Treatment protocol	Material	Mean(SD) Ra (μm)		p*
Group	Treatment protocol	Material	Before treatment	After treatment	p*
Group A (n = 20)	HF + AP	Zirconium oxide	0.2(0.09)^a	0.6(0.01)^b	< 0.05
Group A (n = 20)	HF + AP	Lithium disilicate	0.3(0.05)^a	0.8(0.07)^c	< 0.05
Group B (n = 20)	Er:YAG + AP	Zirconium oxide	0.2(0.05)^a	0.50(0.07)^a	> 0.05
Group B (n = 20)	Er:YAG + AP	Lithium disilicate	0.36(0.09)^a	0.4(0.09)^a	> 0.05
Group C (n = 20)	Er:YAG + HF	Zirconium oxide	0.2(0.07)^a	0.35(0.07)^a	> 0.05
Group C (n = 20)	Er:YAG + HF	Lithium disilicate	0.23(0.09)^a	0.55(0.13)^a	> 0.05

Open in a separate window

*Wilcoxon signed ranks test (p < 0.05)

Within any column and line means with the same superscript letters are not significantly different (p > 0.05). Different letters indicate a significantly difference among the groups (p < 0.05)

HF hydrofluoric acid etching, AP airborne particle abrasion, Er:YAG erbium:yttrium aluminum garnet laser treatment