Ethnobotanical tattooing of the gingiva: literature review and report of a case.

BACKGROUND: Traditional gingival tattooing, practiced in Ethiopia and occasionally in other African and Middle Eastern nations, is performed for esthetic appeal or superstition, and it occasionally may be used as a homeopathic remedy for dental diseases. The authors provide a literature review and case report of this oral custom. CASE DESCRIPTION: A 54-year-old woman from Ethiopia reported that she had undergone tattooing of the maxillary gingiva six years previously for analgesic management of undisclosed oral disease. The gingiva was pierced with a needle, tipped with lantern soot and resin from the plant Datura stramonium (an herb that possesses potent anticholinergic tropane alkaloids and has demonstrated in vitro antimicrobial activity). However, the patient admitted that this procedure had provided no reduction in the pain. Clinical examination was significant for a pronounced blue pigmentation of the maxillary gingiva, generalized mild periodontitis and several carious lesions. CLINICAL IMPLICATIONS: Practitioners should ascertain whether gingival tattooing had been performed when patients manifest unusual oral pigmentation and be aware of its use in folk medicine for various oral conditions.