Is it normal for oral surgeons to administer nitrous oxide in conjunction with local injections?

Yes. Many oral surgeons administer nitrous oxide with local anesthesia for procedures. The nitrous oxide may help alleviate some of the anxiety associated with the procedure and make the injections as well as the actual surgery a more pleasant procedure.
Varies. It is not unusual at all for nitrous to be administered along with local anesthesia. The nitrous is commonly used with many procedures of dentistry to try to relax and calm the patient. Some providers choose to use it and others not as much. It commonly is a case by case, provider by provider decision.

Related Questions

Is it normal for oral surgeons to administer nitrous oxide in conjunction with other anesthetia?

Yes. Oral, surgeons tend to be trained in anesthetic techiques and may use a variety of agents to ascieve analgesia and anesthesia. Read more...
Depends. This depends on the training and preferences of the oral surgeon. Some will use IV sedative agents, while others will use nitrous oxide. Talk to your oral surgeons to find their preferences. Read more...