93 Oral functioning in maxillectomy patients 4 Table 1 - Continued Patient characteristics Implant supported obturators n = 9 Reconstructed Maxilla n = 11 p-value Dental status maxilla; n (%) Natural dentition 0 (0%) 2 (18%) Fixed dental prosthesis on implants 0 (0%) 8 (73%) 0.000d,*** Implant supported denture 9 (100%) 1 (9%) Occlusal units; mean (SD) 0.00 (0.00) 7.45 (3.80) 0.000b,*** Masticatory performance; mean (SD) 18.66 (1.37) 18.20 (2.38) 0.614b Note: Brown vertical classification. I: maxillectomy not causing an oronasal fistula; II: not involving the orbit; III: involving the orbital adnexae with orbital retention. Brown horizontal classification. a: palatal defect only. not involving the dental alveolus; b: less than or equal to 1/2 unilateral; c: less than or equal to 1/2 bilateral or transverse anterior; d: greater than 1/2 maxillectomy. Abbreviations: n, number; Q1, first quartile; SD, standard deviation. aFisher’s exact test. bIndependent T-test. cMann-Withney U test. d χ²-test. *p<.05; ***p<.001.
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