Which method for tooth whitening is best/most cost effective?
Professional methods are usually thought of as being the best and cost effective methods of whitening. A professional custom tray gives you the most even application of whitening material. Professional Stregth Crest Whitestrips are more cost effective, but they do not whiten quite as evenly. The custom tray will be safer and more comfortable because it keeps whitening product solely on the teeth, rather than on the teeth AND gums. In addition, strengths of the whitening materials are usually higher from professional kits than the over-the-counter competitors. The general opinion is that the slightly higher cost in professional kits is more than made up for by the efficiency of the system. All methods will suffer from what is called “rebound.” Rebound is described as the gradual (and usually slight) re-darkening of teeth after whitening. If you don’t minimize what caused the staining in the first place, rebound can be a real problem. “Power bleach” methods are in a slightly different ca
