TABLE 2.

Percentages of bacterial detachment by a passing air bubble moving at different velocities from glass and DDS-coated glass in the presence and absence of a conditioning film^c

Bacterial strain	Bacterial detachment in the absence of a conditioning film (%) by an air bubble moving at:				Bacterial detachment in the presence of a conditioning film (%) by an air bubble moving at:
	2.36 mm s−1		13.6 mm s−1		2.36 mm s−1		13.6 mm s−1
	Glass	DDS-coated glass	Glass	DDS-coated glass	Glass	DDS-coated glass	Glass	DDS-coated glass
S. sobrinus HG1025a	52 ± 15	53 ± 13	39 ± 17	26 ± 18	80 ± 15	91 ± 5	41 ± 16	27 ± 11
S. oralis J22a	72 ± 15	52 ± 20	60 ± 15	46 ± 22	65 ± 27	79 ± 17	44 ± 21	24 ± 18
A. naeslundii T14V-J1a	68 ± 18	41 ± 22	23 ± 13	17 ± 10	67 ± 16	61 ± 16	29 ± 19	22 ± 6
B. fragilis 793Eb	57 ± 14	60 ± 21	34 ± 15	33 ± 19	58 ± 20	60 ± 10	29 ± 12	14 ± 9
P. aeruginosa 974Kb	58 ± 22	90 ± 7	28 ± 14	0 ± 76	72 ± 12	45 ± 19	39 ± 18	12 ± 18

^aConditioning film consisted of saliva. 

^bConditioning film consisted of adsorbed plasma proteins. 

^cNote that prior to the passage of an air bubble, the number of adhering bacteria was set at 4 × 10⁶ cm⁻², as enumerated by the image analysis system. All data are means ± standard deviations based on the results of three experiments with separately grown bacterial strains and substratum surfaces.