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Table 2 Mallampati classification

From: Neuroplasticity induced by general anaesthesia: study protocol for a randomised cross-over clinical trial exploring the effects of sevoflurane and propofol on the brain – A 3-T magnetic resonance imaging study of healthy volunteers

Class

Visible parts by inspection of open mouth

I

Soft palate, fauces, tonsillar pillars and uvula

II

Soft palate, fauces and uvula

III

Soft palate and base of uvula

IV

Soft palate invisible