**Core Concept**
Hypodontia is a developmental abnormality characterized by the congenital absence of one or more teeth. It is a common dental anomaly that affects the formation of teeth during embryonic development.

**Why the Correct Answer is Right**
Hypodontia occurs due to the failure of tooth buds to develop properly during embryonic development. This can be caused by genetic mutations, environmental factors, or other developmental abnormalities. The incidence of hypodontia is higher in individuals with certain genetic syndromes, such as ectodermal dysplasia or cleft lip and palate. The affected teeth can be either small or absent, and the condition can affect any tooth type, including incisors, canines, premolars, or molars.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it is not a developmental abnormality related to tooth formation. It is a term that refers to the condition of having an abnormal shape or structure of the teeth.
**Option B:** This option is incorrect as it refers to the condition of having an excessive number of teeth, which is the opposite of hypodontia.
**Option C:** This option is incorrect as it is not a recognized term related to tooth formation.

**Clinical Pearl / High-Yield Fact**
One important clinical consideration in patients with hypodontia is the potential for associated dental anomalies, such as supernumerary teeth or tooth agenesis. A thorough dental examination and radiographic evaluation are essential to identify and manage these conditions.

**Correct Answer: C. Hypodontia**