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| General Dentistry » Sedation - IV and Relative Anaesthesia [Gas] (N2O) |
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However, contraindications include pregnancy, known allergy to Diazepam,
alcohol intoxication, CNS depression, and some instances of glaucoma.
Cautions include psychosis, impaired lung or kidney or liver function,
and advanced age. Heart disease is generally not a contraindication.
What are the main advantages of IV sedation?
- IV sedation tends to be the method of choice if you don't want
to be aware of the procedure - you "don't want to know".
The alternative in the US is oral sedation using Halcion, but
oral sedation is not as reliably effective as IV sedation.
- The onset of action is very rapid, and drug dosage and level
of sedation can be tailored to meet the individual's needs. This
is a huge advantage compared to oral sedation, where the effects
can be very unreliable. IV sedation, on the other hand, is both
highly effective and higly reliable.
- The maximum level of sedation which can be reached with IV is
deeper than with oral or inhalation sedation.
- Amnesia result for the procedure.
- The gag reflex is hugely diminished - people receiving IV sedation
rarely experience difficulty with gagging. However, if minimizing
a severe gag reflex is the main objective, inhalation sedation
is usually tried first. Only if that fails to diminish the gag
reflex should IV sedation be used for this purpose.
- Can be ideal for those with a phobia of dental injections.
- Unlike General Anaesthesia or Deep Sedation, conscious IV sedation
doesn't really introduce any compromises per se in terms of carrying
out the actual procedures, because people are conscious and they
can cooperate with instructions, and there is no airway tube involved.
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