ABSTRACT
BACKGROUND: Multiple sclerosis (MS) is a leading cause of neurological disability in young and middle-aged populations, associated with substantial burden of illness. Because a growing literature now shows that this burden extends to poorer oral health, oral health-related quality of life (OHRQoL) may be reduced as well. OBJECTIVES: To test whether people with relapsing-remitting MS (RRMS) have poorer OHRQoL than demographically matched controls, and to establish which variables are associated with worse OHRQoL. MATERIALS AND METHODS: In total, 64 people with RRMS and 69 demographically matched controls participated. Both groups completed the Oral Health Impact Profile (OHIP-14), a validated measure of OHRQoL, as well as an objective oral health examination performed by a qualified dentist, a measure of dental-related functionality and a measure of mental health. RESULTS: OHRQoL was significantly poorer in the RRMS relative to the control group. However, although poorer OHRQoL in the RRMS group was moderately associated with objectively assessed oral health (r = .30), it was more strongly associated with mental health (r = .61). For the control group, the reverse pattern of association was evident, with OHRQoL more strongly associated with oral health (r = .48) relative to mental health (r = .20). CONCLUSION: People with RRMS report poorer OHRQoL than demographically matched controls, but these appraisals are more strongly linked to mental health than to objective oral health indicators.
