In-network dentists have agreed to participate in a plan and to provide treatment according to certain administrative guidelines and to accept their contracted fees as payment in full. Different plans are served by distinct dentist networks. Delta Dental PPO dentists are in-network dentists for Delta Dental PPO plans.
Nicotine is a highly addictive substance that occurs naturally in tobacco. It is the active ingredient in tobacco smoke. It has a pungent odor and an acrid taste. Nicotine is defined as a poisonous, oily, pale yellow substance that turns brown upon exposure to air. In concentrated form, this chemical is used as a potent insecticide. The amount of nicotine which occurs in tobacco leaves ranges from 2% to 7%. A smoker inhales approximately 3 mg of nicotine per cigarette.
Cotinine is an alkaloid found in tobacco and is also the predominant metabolite of nicotine. The word cotinine is an anagram of nicotine. Cotinine is used as a biomarker for exposure to tobacco smoke.