1. dental orthopedics-the branch of dentistry dealing with the prevention or correction of irregularities of the teeth. dental orthopaedics, orthodontia, orthodontics, orthodonture. dental medicine, dentistry, odontology-the branch of medicine dealing with the anatomy and development and diseases of the teeth.
1 Regular or Short-acting insulin usually reaches the bloodstream within 30 minutes after injection, peaks anywhere from 2 to 3 hours after injection, and is effective for approximately 3 to 6 hours.
1 Rapid-acting insulin starts to work within 30 minutes after injection. Its effects only last for 3 to 5 hours. 2  Regular- or short-acting insulin takes about 30 minutes to work and lasts up to 12 hours.  Intermediate-acting insulin takes up to 4 hours to work fully.