Exam 16: Abnormalities of Teeth

A 16-year-old boy presents with yellow, severely abraded teeth (entire dentition). Radiographs show teeth with opacified pulps and short roots. The patient has no pain, and no periapical lesions are present. This patient has which of the following?

All the following are correct relative to amelogenesis imperfecta except:

The phenomenon of fusion of cementum of two or more teeth is known as:

A 7-year-old patient presents with a quadrant of teeth showing abnormal formation of both enamel and dentin. All his other teeth appear clinically normal. Radiographically, the affected teeth can be described as "ghost teeth." He has:

Aplasia of secondary skin structures, partial anodontia, and xerostomia are features of:

Poorly formed "shells" of teeth are seen in which of the following?

Periapical lesions (cysts and granulomas) are found in a patient with teeth that show nearly obliterated pulps and short spiky roots. Teeth exhibit normal clinical color. This patient probably has:

Which of the following is typically associated with pulpitis and periapical inflammation following wear of a supernumerary cusp?

The dental phenomenon in which teeth show elongated crowns and pulp chambers are enlarged in apical-occlusal height is known as:

Tooth extraction is made more difficult by all the following except:

Enamel hypoplasia can result from which of the following?

Premature deciduous tooth loss may occur in association with all the following except:

Dens invaginatus:

Congenital anodontia (partial or complete) is a feature of which of the following?

Two brothers present with yellow teeth (entire dentition) and diastemas. Radiographically, dentin appears normal. Their father has a similar condition. This is most likely which of the following?

The phenomenon of a single tooth germ attempting to make two teeth is known as:

The mesiodens:

Serum calcium would be significantly elevated in which of the following?