Exam 7: Dental Anomalies

An odontoma is composed of each of the following EXCEPT one. Which one is the EXCEPTION?

Tetracycline staining is an enamel dysplasia that occurs because an expectant mother or young child with tooth crowns still developing takes the antibiotic tetracycline.

A patient, Suzanne, is 4 months pregnant. She is concerned about her recent sinus infection that required penicillin therapy. She is worried that her baby's teeth will be discolored. She is also concerned that her baby will have a missing maxillary lateral incisor because her father and aunt do not have these teeth. The baby may be missing one or both of the permanent maxillary lateral incisors due to

The canines are LEAST likely of all permanent teeth to be congenitally missing because unlike other permanent teeth, canines begin to calcify by about the fourth of fifth month of fetal life.

Enamel dysplasia is associated with each of the following EXCEPT one. Which one is the EXCEPTION?

Each of the following is true of dentinogenesis imperfecta EXCEPT one. Which is the EXCEPTION?

Fusion involves the joining of two adjacent teeth at the cementum because this process is associated with excessive production of cementum.

A patient, Suzanne, is 4 months pregnant. She is concerned about her recent sinus infection that required penicillin therapy. She is worried that her baby's teeth will be discolored. She is also concerned that her baby will have a missing maxillary lateral incisor because her father and aunt do not have these teeth. Penicillin can cause

A child who has congenitally missing maxillary canines will have congenitally missing permanent canines.

Fusion of roots of adjacent teeth at the cementum is called concrescence and is primarily caused by dilaceration. Gemination is the deposition of excessive secondary cementum.

A fourth molar may be described by each of the following EXCEPT one. Which one is the EXCEPTION?

Which permanent tooth is the LEAST likely to be congenitally missing?

Gemination occurs most frequently in the permanent dentition. It is the splitting of the tooth into two crowns and separate roots.

Each of the following is an example of microdontia EXCEPT one. Which one is the EXCEPTION?

Supernumerary maxillary teeth are more common than supernumerary mandibular teeth because metabolic intrinsic factors within the palate produce more hyperdontia.

A patient who has had four teeth extracted for orthodontia has true partial anodontia.

Anomalies are caused by intrinsic factors only.

The MOST commonly missing permanent teeth are the maxillary premolars. The next teeth MOST likely to be missing are the permanent maxillary lateral incisors.

An unusually large tooth is an example of

An anomaly common to mandibular second premolars is