Teeth getting pulled. Will halcion (triazolam) work for sedation?

Probably not. Halcion (triazolam) is a benzodiazepine, but it is designed and marketed for sleep. It is used for other purposes, but is not likely to provide the effect you want. Consult with your dentist about this.
Yes. Halcyon is a commonly used medication in many protocols for oral conscious sedation. It can be used in combination with other medications to produce the desired effect. It is not intended as a deep sedative, but can be used to control dental anxiety in all procedures. It causes relaxation and amnesia, so it can be effectively used for wisdom tooth removal.