Oral sedation is the simplest and least invasive option for sedation dentistry.
Your dentist will simply prescribe you a sedative medication that you'll take around 30 minutes to an hour before your procedure. The effects of oral sedation are relaxation, lack of anxiety or worry, and physical comfort. You may even find yourself dozing off during your dental procedure. You can still breathe on your own, move and respond to commands when you've taken an oral sedative.
The biggest issues with oral sedation are dosage management and the duration of the pill's effects. Because the effects take time to materialize (and there's no reliable way to gauge how long they'll last), many patients will need a ride home after their procedure is over.
Laughing gas is another form of sedation that eases anxiety during dental procedures. Because laughing gas is inhaled through a mask and is administered in the dentist's office, dosage is much easier to control. Additionally, the effects of laughing gas wear off as soon as the patient stops inhaling the gas. This makes the effects easier to manage.
Intravenous sedation offers a deeper state of relaxation, but is also more invasive, as the sedatives are administered through an IV line.
Because the sedatives go directly into the bloodstream, the effects are almost instantaneous. This is especially beneficial for patients with more intense anxiety. Intravenous sedation still allows you to breathe on your own and respond to external stimuli.
General anesthesia is also available as a form of intravenous sedation. With anesthesia, you are completely unconscious and will not respond to any external stimuli or commands. You will also need to be intubated since you can't regulate your breathing independently.