A dental abscess (also termed a dentoalveolar abscess, tooth abscess or root abscess), is a localized collection of pus associated with a tooth. The most common type of dental abscess is a periapical abscess, and the second most common is a periodontal abscess.In a periapical abscess, usually the origin is a bacterial infection that has accumulated in the soft, often dead, pulp of the tooth. dental abscess (also termed a dentoalveolar abscess, tooth abscess or root abscess), is a localized collection of pus associated with a tooth. The most common type of dental abscess is a periapical abscess, and the second most common is a periodontal abscess.
The Duet (1628), by Hendrick ter Brugghen. A duet is a musical composition for two performers in which the performers have equal importance to the piece. It is often used to describe a composition involving two singers. It differs from a harmony, as the performers take turns performing a solo section rather than performing simultaneously.
A couplet is a pair of rhymed lines of poetry. Such pairs can occur on their own, as short poems or aphorisms, or strung together as long poems or combined with other poetic forms, most commonly as the final lines of an English-style, or Shakespearean, sonnet.n elegiac couplets is an older form, favored by classical writers; it comprises one line of dactylic hexameter and one of pentameter, with a brief pause, or caesura, in the middle. In both cases, the couplets are closed, meaning that each pair of lines constitutes a single thought or complete sentence.