Exam 5: Developmental Disorders

Which tumor frequently arises from a dentigerous cyst?

Clinically, the lingual thyroid nodule appears as a smooth nodular mass

Regional odontodysplasia is

During tooth development, ectoderm and ectomesenchymal cells give rise to each of the following except one. Which one is the exception?

The lateral periodontal cyst occurs most often on the lateral aspect of a tooth root, which is usually the

Odontogenic keratocysts are a clinical component of

A small elevated mass of thyroid tissue located near the foramen cecum or posterior lateral borders of the tongue, which forms as a result of failure of the embryonic thyroid tissue to migrate to its proper position, is called a(n)

Which term describes a disorder present at and existing from the time of birth?

Impacted teeth cannot erupt because of

Another name for dens invaginatus is

Which statement about macrodontia is true?

What is the pseudocyst filled with salivary gland tissue that may be an extension of the sublingual gland?

The cyst that appears in the bone in this radiographic image surrounds the fully formed crown of an unerupted premolar. The dental hygienist should refer to this as a(n) _____ cyst.

Odontogenesis in the human embryo occurs at

Trauma or change in the environment at the time of birth can eventually cause enamel hypoplasia in the child. Which cells are so sensitive and easily damaged to cause this defect?

The deformity seen here with a bend in root apices is characteristic of

Which term best describes a disorder caused by abnormalities in the genetic makeup transmitted from parent to offspring?

The most common supernumerary tooth is termed

Which term defines the joining of two adjacent teeth by cementum only?

This patient exhibits an accessory cusp located in the cingulum of the maxillary right lateral permanent incisor. This can be diagnosed as a