The study below using an online survey shows that pwMS have a greater oral health burden than the general population; i.e. they experience high rates of toothache, mouth dryness, teeth sensitivity, change of taste and orofacial pain. PwMS also have higher rates of gum, or periodontal, pathology (see previous blog post ‘poor dental hygiene and disability‘). Periodontal disease is a problem as it causes systemic inflammation that is associated with the development of metabolic syndrome and other comorbidities, which may increase the rate of MS worsening (formerly referred to as progression).
So why do pwMS neglect oral health? There are many possible reasons, which could include depression, cognitive problems, fatigue, poverty, pain, disability and poor diet and smoking.
- When you are depressed everything seems worthless. When you have suicidal thoughts the last thing you are going to be doing is worrying about the state of your teeth and gums.
- When you have memory problems you may simply forget to brush your teeth, use dental floss or go to your oral hygienist.
- If you are unemployed (probably because of your MS) you may simply not have enough money to purchase what is required to look after your mouth.
- If you are incapacitated by MS-related fatigue it is easy to understand why brushing your teeth, flossing and seeing a hygienist fall off your ToDo list.
- If you have trigeminal neuralgia or atypical facial pain, both of which are quite common in pwMS, you are not going to be doing anything that exacerbates your pain.
- If you are losing, or have lost, hand function and battle to manipulate your toothbrush it may be easier to skip oral hygiene procedures.
- In our MS population in London the average diet is not good at all; far too much-processed carbohydrates that are bad for your teeth. In addition, pwMS still have high rates of smoking and smoking causes oral health problems.
Sexton et al. Oral health and behaviours of people living with Multiple Sclerosis in Australia. Community Dent Oral Epidemiol. 2019 Jan 7.
METHODS: Participants enrolled with the Australian MS Longitudinal Study (AMSLS) were invited to participate in the survey using an online or paper-based questionnaire. Data were collected on level of disability, oral health, oral self-care and factors influencing attendance for oral health care.
RESULTS: Completed questionnaires were received for 1523 respondents. Over one-fifth (n = 320; 22%) rated their oral health as fair or poor, and more than half (n = 840; 57%) reported toothache in the last 12 months. These proportions were higher than those for the general Australian adult population (oral health prevalence ratio (PR) = 1.25 [1.12, 1.40]; toothache PR = 3.63 [3.39, 3.88]), and this is despite comparable or better self-maintenance habits and dental attendance reported by respondents. People with MS reported high rates of mouth dryness (68.4%), teeth sensitivity (64.7%), change of taste (40.5%) and orofacial pain (39.0%); fewer than 10% experienced none of these. There was a lower prevalence of self-reported need for treatment (extraction or filling) than in the Australian adult population (15.8% vs 32.9%).
CONCLUSIONS: People with MS have a greater oral health burden, demonstrated by their poorer self-reported oral health than the Australian adult population. Furthermore, they experience high rates of toothache, mouth dryness, teeth sensitivity, change of taste and orofacial pain. These findings are contrary to their self-reported good oral self-care and dental attendance habits and suggest some of the oral health impacts are due to MS rather than dental behaviours.