Effects of subgingival air-polishing with trehalose powder on oral biofilm during periodontal maintenance therapy: a randomized-controlled pilot study

Table 2 Main clinical results regarding periodontal parameters from original publication of Kruse et al. 2019 [9].

	group	Baseline = BL (n = 52)	3 months (n = 48)	6 months (n = 44)	p Value BL vs. 3 months	p Value BL vs. 6 months	p Value change test group vs. control group (3 months)	p Value change test group vs. control group (6 months)
BOP %	test	86.36	59.09	40.91	< 0.001	< 0.001	0.561	0.693
BOP %	control	88.64	63.64	34.09	< 0.001	< 0.001	0.561	0.693
PD (mm)	test	5.52 (0.93)	4.25 (1.12)	3.66 (0.81)	< 0.001	< 0.001	0.408	0.907
PD (mm)	control	5.55 (0.90)	4.11 (1.08)	3,68 (0.86)	< 0.001	< 0.001	0.408	0.907
CAL (mm)	test	6.93 (1.50)	5.80 (1.65)	5.30 (1.52)	< 0.001	< 0.001	0.82	0.062
CAL (mm)	control	7.27 (1.80)	6.00 (1.73)	5.84 (1.71)	< 0.001	< 0.001	0.82	0.062

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