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Gagging Severity Index GSI Grade I Very mild: Controlled by patient II Mild: Control regained by patient/dentist with simple control techniques & reassurance III Moderate: Limits treatment options IV Severe: Some treatments impossible V Very severe: Effects patient’s behaviour and dental attendance. All treatment impossible Dickinson & Fiske. 2000
“ That a needle stuck into the skin of the foot should help a case of migraine is obviously incredible, it makes no sense. Within our system of explanation there is no reason why the needle prick should be followed by an improvement, therefore we say it cannot happen. The only trouble with this argument is that as a matter of empirical fact, it does happen.” Aldous Huxley Evidence of effect is emerging in several areas