Accidently inhaled several deep breaths of isopropyl alcohol when getting orthodontic retainer mold. have i killed brain cells? what damage was done?

No damage: You have not killed brain cells, nor was any damage done.

No damage: According to poison control a few breaths of isopropyl alcohol is not dangerous.

No damage: First of all a few breaths of isopropyl alcohol once inn your life is not going to do any damage. Second, orthodontists do not use alcohol-based impression materials. They're made of other chemical compounds, so i doubt it was alcohol that you inhaled. Glad your braces are off--wear your retainers as directed.

Inhalation bad?: That type of occurrance is usually only a problem if it is a repetitive or abuse state. An incidental exposure is of little or no consequence.