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items answered)/number of questions answered) * (100/5)). These calculations produce a % of functionality in terms of Physical function and Social/well-being function. A lower score here indicates worse quality of life.\u000DThe Facial Clinimetric Evaluation Scale (FaCe Scale) is a questionnaire consisting of 15 items over 6 domains (facial movement, facial comfort, oral function, eye comfort, lacrimal control, and social function). The score ranges from 0 (worst score) to 100 (best score). The questionnaire has a validated Dutch version (Kleiss, Beurskens et al. 2015).\u000DIn addition to these disease-specific questionnaires, non-specific questionnaires can be used, such as the SF-36 Health Survey (Aaronson, Muller et al. 1998, Ware 2000).\u000DApart from these grading systems and quality-of-life questionnaires a development can be seen in the use of computerised methods to measure facial paresis and functioning (He, Soraghan et al. 2008, He, Soraghan et al. 2009, Neely, Wang et al. 2010, O\u0027Reilly, Soraghan et al. 2010, Kecskes, Jori et al. 2011). These methods are currently not (yet) applied within the head and neck rehabilitation programme.\u000D5.3.5.3. Mime therapy\u000DMime therapy, or rehabilitation of facial expression, is aimed at patients who are faced with the residual effects of facial palsy. Treatment can (usually) start as soon as there is any movement visible in the damaged side of the face. In the phase in which no movement is possible yet, it can furthermore be useful to consult with a physiotherapist or speech therapist for information, advice, and training in massage exercises. The therapy should be performed by specialised, certified physiotherapists and/or speech therapists.\u000D5.3.5.4 Efficacy of mime therapy\u000DA randomised study by Beurskens et al. found that mime therapy improves facial symmetry, both during rest and voluntary excursion, and reduces the severity of the nerve injury (Beurskens and Heymans 2006). In the study 50 patients were included who had had facial paresis for longer than 9 months. Fifty per cent of the patients (25/50) received three months of intensive mime therapy (a.o. massage, relaxation exercises, reduction of synkinesis and exercises for coordination and emotional expression), while the other 25 patients were placed on a waiting list for three months (control group). After three months the facial symmetry in the patients with mime therapy had improved by 20.4 points (95% CI 10.4 to 30.4) on the Sunnybrook Facial Grading System as compared to the patients on the waiting list. Furthermore, the severity of the facial paralysis in the patients receiving mime therapy had dropped 0.6 points on the House-Brackmann Facial Grading System compared to the control group. Another randomised study by Beurskens et al. showed that mime therapy is meaningful (in patients with facial paresis) and that the achieved results remain stable after one year (n=48) (Beurskens, Heymans et al. 2006). The authors concluded that facial palsy and its residual effects do not disappear in themselves, but that the frequent exercises allow the patient more control over their facial muscles and expression. With the use of quality-of-life questionnaires it was furthermore found that patients experience greater well-being due to the mime therapy and therefore were better able to cope with the situation.\u000DResearch into the effects of mime therapy in head and neck cancer patients has so far not been described in the literature. The causes of facial paresis that have been studied are Bell\u2019s palsy, surgery of an acoustic neuroma, a (surgical) trauma, Lyme\u2019s disease and the Herpes Zoster infection. An \u2018oncological\u2019 facial paralysis is often caused by ingrowth of, and/or damage to, the nervus facialis as a\u000D117\u000D