. 2013 Nov;23(3):255–264. doi: 10.4314/ejhs.v23i3.8

Table 3.

Comparison of new brush group and old brush group with respect to plaque scores at 40^th day, 70^th day and 100^th day on buccal, palatal/ lingual aspects of maxillary and mandibular arches.

Time point	Sides	Group	Median	U-value	P-value
40^th day	Maxillary Buccal	New brush group	1.04	104.50	0.3758
	Maxillary Buccal	Old brush group	1.00	104.50	0.3758
	Maxillary Palatal	New brush group	1.14	125.00	0.9100
	Maxillary Palatal	Old brush group	1.29	125.00	0.9100
	Mandibular Buccal	New brush group	1.14	121.00	0.7919
	Mandibular Buccal	Old brush group	1.14	121.00	0.7919
	Mandibular Lingual	New brush group	1.36	119.50	0.7487
	Mandibular Lingual	Old brush group	1.43	119.50	0.7487

70^th day	Maxillary Buccal	New brush group	1.14	114.00	0.5977
	Old brush group	1.21		114.00	0.5977
	Maxillary Palatal	New brush group	1.14	44.50	0.0017^*
	Maxillary Palatal	Old brush group	1.75	44.50	0.0017^*
	Mandibular Buccal	New brush group	1.14	111.50	0.5340
	Mandibular Buccal	Old brush group	1.21	111.50	0.5340
	Mandibular Lingual	New brush group	1.29	30.00	0.0002^*
	Mandibular Lingual	Old brush group	1.68	30.00	0.0002^*

100^th day	Maxillary Buccal	New brush group	1.29	84.50	0.1011
	Maxillary Buccal	Old brush group	1.36	84.50	0.1011
	Maxillary Buccal	New brush group	1.29	15.50	0.0001^*
	Maxillary Buccal	Old brush group	1.79	15.50	0.0001^*
	Mandibular Buccal	New brush group	1.36	83.00	0.0899
	Mandibular Buccal	Old brush group	1.54	83.00	0.0899
	Mandibular Lingual	New brush group	1.36	2.00	0.0001^*
	Mandibular Lingual	Old brush group	2.00	2.00	0.0001^*

Calculated by Mann-Whitney u test, p-value significant at p ≤ 0.05.