[Tongue coating, mouth odor, gustatory sense disorder - earlier and new treatment options by means of tongue scraper].

The tongue is said to be the mirror of physical health. The tongue dorsum is most delicate regarding the sense of touch. Pathologic coating of the tongue accounts for paresthesia during chewing, swallowing, speaking, tasting, and also may result in mouth odor. Tongue coating can result from increased formation or decreased natural abrasion, and from xerostomia or dyschylia. In clinical otorhinolaryngology pathologic tongue coating often is idiopathic or present after surgery of the oral cavity or pharynx. Critical analysis of published studies reveals that effectivity and justification to administer xenobiotics or vitamins in that condition is doubtful. Recently, it has been shown that tongue fur was able to be reduced by an easy-to-handle mechanical tongue cleaner or tongue scraper. Due to its simple use, tongue scrapers could be a welcome supplement for the treatment of tongue fur, mouth odor, and in particular cases, to enhance gustatory sense. Preliminary results of an ongoing prospective trial showed that tongue scrapers can effectively be applied after surgery of the oral cavity or pharynx. After tonsillectomy, tongue fur seemed to be reduced and gustatory sense to be enhanced when tongue scrapers were applied during postoperative care. After confirming these promising results in further investigations, an inexpensive and simple option for the treatment of a large amount of patients in clinical otorhinolaryngology would exist.