Betony (Stachys officinalis, also known as wood betony) has a long history of use in European herbal medicine, especially for ailments affecting the mouth and throat. Traditionally, betony has been included in herbal preparations to support oral health, including the gums, due to its purported astringent and anti-inflammatory properties. Historical texts from the Middle Ages, such as those by herbalists like Nicholas Culpeper, mention betony as beneficial for "ulcers in the mouth and gums" and as a mouthwash for sore mouths. The use of betony for gum health persists in some folk medicine traditions, often as a tea or gargle.

However, there is little to no modern scientific research specifically investigating betony's effects on gum health or periodontal disease. While phytochemical studies confirm that betony contains tannins and other compounds with potential astringent effects, clinical studies validating its efficacy for gum support are lacking. Therefore, the use of betony for gum health is justified primarily by traditional use, and the strength of evidence supporting its effectiveness is weak.