Callahan Dentistry is a cosmetic and family dental clinic. Located in Huntsville, Ala., the clinic offers a series of services in the categories of bonding, extractions, root canals, bleaching and whitening. It uses nitrous oxide, a general anesthetic, used to reduce anxiety during dental procedures. The dental clinic also helps identify the problem causing bad breath and helps prevent gum diseases. Additionally, Callahan Dentistry performs bonding treatment to improve the appearance chipped, broken, cracked and stained teeth.