Dental Assistant Practice Exam

Eugenol is primarily derived from clove oil, which is known for its strong aroma and flavor and is commonly used in dentistry due to its analgesic and anti-inflammatory properties. In clove oil, eugenol is the primary component and accounts for a significant portion of its composition, making it a key ingredient in various dental materials, such as temporary fillings and dental varnishes.

While mint oil, lemon oil, and pine oil are associated with other essential oils and their own unique compounds, they do not contain eugenol in significant amounts. Mint oil primarily contains menthol, lemon oil contains limonene and citral, and pine oil consists mainly of pinene and other terpenes. Therefore, clove oil is the correct source of eugenol due to its high concentration and importance in both medicinal and dental applications.