33 Maxillary implant overdentures: bars or solitary attachments Table 2.5 | [continued] Pre-treatment After 1 year After 5 years Solitary attachment group (n=25) Bar attachment group (n=25) p-value Solitary attachment group (n=23) Bar attachment group (n=24) p-value Solitary attachment group (n=23) Bar attachment group (n=20) p-value Functional complaints in general [IQR] (max. 54) 23 [16.25-31.25] 15 [7.25-27.50] p=0.033* 3 [1-6.25] 1 [0-4.75] ns 2.5 [0-5.75] 2 [0-7.25] ns Facial aesthetics [IQR] (max. 9) 4.5 [1-6.5] 2 [0-5.25] ns 0 [0-3] 0 [0-0] ns 1 [0-2.75] 0 [0-3] ns “Neutral Space” [IQR] (max. 9) 1 [0-3] 0.5 [0-2] ns 0.5 [0-2.25] 0[0-1] ns 0 [0-2] 0 [0-2] ns Aesthetics [IQR] (max. 36) 1 [0-5.5] 0 [0-1.25] p=0.046* 0 [0-1.25] 0 [0-1] ns 1 [0-3] 0 [0-2.25] ns General satisfaction score upper denture [IQR] 4 [1-6] 4 [2-6] ns 8 [7-9] 9 [8-10] p = 0.041* 8 [8-9] 8 [8-9] ns Total food chewing score [IQR] (max. 18) 11 [6-15] 11 [9-12] ns 4 [2-7] 0 [0-3] 0.001 3 [1-6] 2 [2-5] ns Soft foods score [IQR] (max. 6) 1 [1-3] 2 [1-3] ns 0 [0-0] 0 [0-0] ns 0 [0-0] 0 [0-0] ns Tough foods score [IQR] (max. 6) 3 [2-5] 4 [3-4] ns 0 [0-2] 0 [0-0] 0.034 1 [0-2] 0 [0-0] ns Hard foods score [IQR] (max. 6) 6 [4-6] 6 [5-6] ns 3 [2-6] 0 [0-2] <0.001 2 [1-4] 2 [0-4] ns Differences between the study groups were tested with the Mann–Whitney U test. IQR: interquartile range; ns: no significant differences. *: p < 0.05, ** p<0.01. 2
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