Evaluation of Clinical Effectiveness and Subjective Satisfaction of a New Toothbrush for Postsurgical Hygiene Care: A Randomized Split-Mouth Double-Blind Clinical Trial

Table 1

Influence of the type of surgery (fixed factor) and of the toothbrush (random factor) on Plaque Index (PI) at 7, 14, and 30 days. PI mean values and Standard Deviation (SD) at three times are reported for both test (TB1) and control toothbrushes (TB2). Generalized Linear Model applied considering PI at baseline as covariate.

	PI: 7 days	PI: 14 days	PI: 30 days
PI baseline	0.001	0.021	0.075
Surgery	0.324	0.605	0.170
Toothbrush	0.032	0.023	0.0001
Surgery and toothbrush	0.604	0.697	0.883
Test TB1 mean (SD)	27.10 (6.72)	20.10 (7.72)	23.20 (6.76)
Control TB2 mean (SD)	39.90 (8.56)	32.40 (6.15)	32.20 (8.07)