Evaluation of the Effect of Anti-COVID-19 Mouthwashes on Shear Bond Strength of Composite Resin Restorations to Dentin and Enamel: An “In Vitro Study”

Table 2

Fracture strength values in different study groups.

Group	Substrate	Mean (MPa)	Std. deviation	Std. error mean		df	Sig.	Upper bond (MPa)	Lower bond (MPa)
Cetylpyridinium chloride	Enamel	33.4460^a	6.62433	1.71039	6.332	14	.000	37.1144	29.7776
	Dentin	21.1853^b	7.06013	1.82292				25.0951	17.2756
Povidone-iodine	Enamel	32.9620^a	7.09081	1.83084	5.254	14	.000	36.8888	29.0352
	Dentin	18.7427^b	5.39910	1.39404				21.7326	15.7527
Hydrogen peroxide	Enamel	27.9007^a	7.04100	1.88179	3.152	13	.008	31.9661	23.8354
	Dentin	19.1600^b	8.29973	2.28719				23.7562	14.5638
Chlorhexidine	Enamel	30.6114^a	7.41184	1.98090	2.829	13	.014	34.8909	26.3320
	Dentin	22.8467^b	7.83380	2.16950				27.1849	18.5085
Control	Enamel	32.0540^a	5.78642	1.25605	4.805	12	.000	35.2584	28.8496
	Dentin	17.9108^b	6.35785	1.76335				21.7528	14.0688

Numerical values with dissimilar power are significantly different from each other.