What is the dental condition described as invagination of the inner enamel epithelium producing a tooth within a tooth?

Study for the Pediatric Dentistry II Exam. Utilize flashcards and multiple choice questions with hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

What is the dental condition described as invagination of the inner enamel epithelium producing a tooth within a tooth?

Dens in dente occurs when the inner enamel epithelium invaginates or folds into the dental papilla during tooth development, creating an enamel-lined pocket within the crown or root. This produces what looks like a tooth within a tooth and is the classic description of the condition. It most often affects the maxillary lateral incisors and can range from a shallow infolding to a deep invagination that approaches the pulp, making management more challenging. On radiographs, you’ll see an enamel-lined in-folded structure within the tooth, giving that distinctive “tooth inside a tooth” appearance. Clinically, this configuration can predispose to caries and pulpal problems because the abnormal enamel-lined tract can harbor bacteria and is difficult to clean or seal completely. Taurodontism involves an enlarged, elongated pulp chamber with apical displacement of the pulpal floor, not an invagination inside the tooth. Fusion is the union of two tooth buds into a single large tooth, while gemination is an attempt of a single tooth bud to divide, often presenting as a bifid crown but with a single root system. These do not describe an inward folding of enamel into the tooth structure. Thus, the condition described is dens in dente.

Dens in dente occurs when the inner enamel epithelium invaginates or folds into the dental papilla during tooth development, creating an enamel-lined pocket within the crown or root. This produces what looks like a tooth within a tooth and is the classic description of the condition. It most often affects the maxillary lateral incisors and can range from a shallow infolding to a deep invagination that approaches the pulp, making management more challenging.

On radiographs, you’ll see an enamel-lined in-folded structure within the tooth, giving that distinctive “tooth inside a tooth” appearance. Clinically, this configuration can predispose to caries and pulpal problems because the abnormal enamel-lined tract can harbor bacteria and is difficult to clean or seal completely.

Taurodontism involves an enlarged, elongated pulp chamber with apical displacement of the pulpal floor, not an invagination inside the tooth. Fusion is the union of two tooth buds into a single large tooth, while gemination is an attempt of a single tooth bud to divide, often presenting as a bifid crown but with a single root system. These do not describe an inward folding of enamel into the tooth structure.

Thus, the condition described is dens in dente.

More practice questions