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

Multiple Choice

Dens in Dente is a dental anomaly that results in which of the following clinical appearances?

Dens in dente, or dens invaginatus, happens when the enamel organ folds inward into the dentin during tooth development. This inward folding creates an enamel-lined pocket that can extend into the crown or root, and on radiographs it produces the classic appearance of a tooth within a tooth. That radiographic sign—an enamel-lined structure appearing inside the boundary of the normal tooth—is the hallmark that distinguishes this condition. Clinically you may see a deep lingual pit or fissure on affected teeth, but the defining, most recognizable feature is the radiographic look of a separate tooth-like structure contained within the tooth. This is why the option describing a tooth within a tooth best matches the characteristic presentation. The other options don’t fit: enamel hypoplasia shows general or localized enamel defects on the surface rather than a nested tooth appearance; a root with dilaceration is an abnormally bent root; taurodontism involves an enlarged pulp chamber with apically displaced furcation.

Dens in dente, or dens invaginatus, happens when the enamel organ folds inward into the dentin during tooth development. This inward folding creates an enamel-lined pocket that can extend into the crown or root, and on radiographs it produces the classic appearance of a tooth within a tooth. That radiographic sign—an enamel-lined structure appearing inside the boundary of the normal tooth—is the hallmark that distinguishes this condition.

Clinically you may see a deep lingual pit or fissure on affected teeth, but the defining, most recognizable feature is the radiographic look of a separate tooth-like structure contained within the tooth. This is why the option describing a tooth within a tooth best matches the characteristic presentation.

The other options don’t fit: enamel hypoplasia shows general or localized enamel defects on the surface rather than a nested tooth appearance; a root with dilaceration is an abnormally bent root; taurodontism involves an enlarged pulp chamber with apically displaced furcation.