The "field model" proposes there are components for each type of tooth shape found in the ectomesenchyme during tooth development.

There are various tooth shapes for different jobs.

The different tooth shapes that distinguished the species were considered variation in the dentition of a single species.

Since the gear is curved, this angling causes the tooth shape to be a segment of a helix.

There are two issues regarding tooth shape.

There is no sexual dimorphism in tooth shape.

One failure mode is gradual wear to the tooth shape, which may eventually lead to slippage over rounded teeth.

Does the child have any medical conditions that may cause abnormal tooth shape?

The first, as is the general trend in animals, tooth shape is adapted to the individual's diet.

The mix of tooth shapes indicate it could eat a variety of foods.