BMC Oral Health

Table 2 Oral status of the participants in the healthy and MCI groups

From: Patients with mild cognitive impairment diagnosed at dementia clinic display decreased maximum occlusal force: a cross-sectional study

	Healthy				MCI				p value
	Mean ± SD	Median	n	%	Mean ± SD	Median	n	%	p value
Number of existing teeth	24.9 ± 5.6	27	48		20.2 ± 9.8	24.5	48		0.031*
Number of functional teeth	27.5 ± 1.8	28	48		27.4 ± 2.0	28	48		0.865
Denture use
Yes			9	18.8			19	39.6	0.025**
No			39	81.2			29	60.4
Oral dryness	29.7 ± 3.9	30.6	48		29.4 ± 3.0	30.1	48		0.371
Maintained			43	89.6			39	81.2	0.247
Reduced			5	10.4			9	18.8
ODK/pa/	6.6 ± 0.6	6.8	48		6.5 ± 0.9	6.6	48		0.586
Maintained			43	89.6			35	72.9	0.036**
Reduced			5	10.4			13	27.1
ODK/ta/	6.7 ± 0.7	6.6	48		6.4 ± 0.8	6.2	48		0.086
Maintained			42	87.5			35	72.9	0.073
Reduced			6	12.5			13	27.1
Tongue pressure	33.3 ± 8.1	32.3	48		33.3 ± 7.4	33.3	48		0.878
Maintained			33	68.7			35	72.9	0.653
Reduced			15	31.3			13	27.1
Maximum occlusal force (/10 N)	41.1 ± 23.4	38.1	48		30.2 ± 21.0	27.9	48		0.019*
Maintained			38	79.2			31	64.6	0.112
Reduced			10	20.8			17	35.4
Masticatory ability	6.3 ± 1.7	7	48		6.0 ± 1.7	6	48		0.305
Maintained			36	75.0			30	62.5	0.186
Reduced			12	25.0			18	37.5
Swallowing ability	5.0 ± 0.3	5	48		4.9 ± 0.3	5	48		0.320
Maintained			47	97.9			47	97.9	1.000
Reduced			1	2.1			1	2.1

MCI: mild cognitive impairment, SD: standard deviation, ODK: oral diadochokinesis
*p < 0.05 Healthy group vs MCI group, Mann–Whitney U test
**p < 0.05 Healthy group vs MCI group, Chi-square test

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