Effect of Silicon, Titanium, and Zirconium Ion Implantation on NiTi Biocompatibility

Table 4

Efficiency of the formation of colonies of MSCs cultivated on the surface of the NiTi specimens differing in chemical compositions and roughness. Summarized data for three specimens of each type.

Specimen	Number of colonies					Number of colonies on the specimen per square centimeter
	average for a specimen	small	medium-sized	large	merged
NiTi-AG	13	6	1	1	5	3.9
NiTi-BG	9	4	3	2	—	1.6
NiTi-AJ	20	7	7	4	2	3.75
NiTi-BJ	38	17	15	2	4	7.35
NiTi-AH	33	13	14	3	3	4.98
NiTi-BH	27	2	16	8	1	5.27