Thirty patients with Parkinson's disease were investigated with regard to their oral health. They had significantly more teeth and less caries than a control group of corresponding age. However, the salivary secretion rate was significantly lower with advancing parkinsonian symptoms. It is concluded that not only motor impairment but also autonomic dysfunction, as an expression of a more advanced neuron degeneration, could be of importance when the possibility of maintaining a good oral health in parkinsonian patients is considered.
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Persson et al. (1992) studied this question.
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