Table 3.

Biological and technical complications

Per overdenture (n = 128)	Man (n = 55) n (%)	Max (n = 73) n (%)	p value	OR (95% CI) Max vs. Man
Biological complications
Localized stomatitis	10 (18.2)	20 (27.4)	0.293	1.70 (0.71–4.03) #
Generalized stomatitis	3 (5.5)	9 (12.3)	0.231	2.44 (0.62–9.61) #
Hyperplastic inflammation	2 (3.6)	5 (6.8)	0.698	1.95 (0.36–10.55) #
Loss of abutment teeth	9 (16.4)	10 (13.7)	0.611	0.77 (0.28–2.11) ##
Abutment tooth caries	6 (10.9)	5 (6.8)	0.365	0.56 (0.16–1.97) ##
Fracture of abutment teeth	8 (14.5)	2 (4.1)	0.016	0.15 (0.03–0.70 ##
Apical lesions in abutment teeth	2 (3.6)	2 (2.7)	0.979	1.02 (0.16–6.55) ##
Technical complications
Loss of matrix retention	30 (54.5)	12 (16.4)	0.480	0.77 (0.38–1.56) #
Denture base fracture	8 (14.5)	17 (23.3)	0.264	1.78 (0.70–4.54) #
Root-cap decementation	6 (10.9)	12 (16.4)	0.447	1.61 (0.56–4.62) ##
Loss of the matrix housing	6 (10.9)	35 (47.9)	0.603	1.45 (0.50–4.22) ##
Post fracture	4 (7.3)	0 (0)	0.032	- ##

Number (%) of biological and technical complications, comparing mandible (man) and maxilla (max)

^#Exact Fisher test

##p value and OR adjusted for the number of abutment teeth (logistic regression)