63 QOL related to mastication in maxillectomy patients 4 Dutch Liverpool Oral Rehabilitation Questionnaire version 3 The LORQv3-NL evaluates the impact of oral rehabilitation on OHRQoL in patients treated for oral cancer. The LORQv3-NL is divided into four sections and consists of (a) oral function, oral-facial appearance and social interaction (17 items), (b) patient satisfaction of prostheses (4 items), (c) patient satisfaction of upper dentures (6 items), and (d) patient satisfaction of lower dentures (6 items). The internal consistency of these sections has a Cronbach’s alpha of .89, .83, .75, and .81, respectively [25]. All items are rated on a 1 to 4 Likert scale from 1 (‘Never’) to 4 (‘Always’) and refer to recent symptoms or problems experienced during the previous week. Statistics The presentation of results is primarily descriptive with means, standard deviations (SD), and medians. Fisher’s exact test, the Chi-square-test, and Independent t tests were used to assess whether there are differences in demographic and clinical data. Values of the implant-retained group versus the conventional group of the MAI score (continued data) were compared with Independent t tests when data were normally distributed; otherwise, the Mann-Whitney U test was applied. Normal distribution was verified by using the Shapiro-Wilk test. The Mann-Witney U Test was used to compare the outcome of the OHIP-EDENT, OFS, and LORQv3-NL questionnaires (ordinal data) for the two patient groups. Statistical analyses were regarded as significant if the p-value was equal to or lower than .05. Data were evaluated using SPSS (IBM version 24 for Mac). A post hoc power analysis was performed on the primary outcome MAI score by G*Power [32, 33].
RkJQdWJsaXNoZXIy MTk4NDMw