“…Subjective evaluations could also be used in surveys (Thomson, Chalmers, Spencer, & Williams, ). It was reported that xerostomia self‐perception was the main oral health related variable explaining the variations of mini nutritional assessment in elderlies (El Osta et al, ). Different questionnaires are available, such as the xerostomia questionnaire (XQ) (Meirovitz, Murdoch‐Kinch, Schipper, Pan, & Eisbruch, ), the xerostomia inventory (XI) (Thomson et al, ), the Summated Xerostomia Inventory‐Dutch which is a shortened XI questionnaire (van der Putten, Brand, Schols, & de Baat, ), a dry mouth severity questionnaire (Fox, Busch, & Baum, ), and xerostomia grading validated scales (Eisbruch et al, ; Pai, Ghezzi, & Ship, ).…”