Exam 5: Developmental Disorders

The only hypoplastic defect in a patient's dentition is located on the facial surface of a permanent maxillary central incisor. The most likely cause of this defect is:

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

This radiograph clearly shows which developmental anomaly?

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

This patient is perfectly healthy, with no history of local or systemic infection or disease. All of the patient's teeth are caries free, as are all of the teeth of all of the patients who exhibit this defect. This is characteristic of:

The most common supernumerary tooth is called:

This enlargement on the lateral neck of this patient has been present for months and is slowly increasing in size. It is painless and feels soft. Histologic examination shows this to be an epithelium-lined sac filled with clear, yellow fluid. It is a _____ cyst.

Periapical x-ray examination reveals a well-defined unilocular radiolucency located in the midline of the hard palate. The diagnosis is _____ cyst.

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

During embryonic development of the face, the frontal process divides into three parts. These three parts include the median nasal process, the right lateral nasal process, and the left lateral nasal process.

Which one of the following is not true about the thyroglossal tract cyst?

Which one of the following tumors frequently arises from a dentigerous cyst?

Odontogenesis in the human embryo takes place at approximately:

For which condition would pulp vitality be nonvital?

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):

Odontogenesis in the human embryo occurs at:

Dens in dente is a developmental anomaly often seen with:

Nonerupted supernumerary teeth should be extracted because of which of the following risks?

When counting the maxillary anterior teeth of this adolescent patient, it appears that five are present, if the large tooth is counted as one. A radiograph reveals that this large central tooth has two roots. This tooth demonstrates:

Multiple supernumerary teeth may be a component of which of the following?