Tooth Development

Concrescence is

• An extra root or accessory roots in a formed tooth

• Distorted roots or roots in a formed tooth

• A union of root structure of two or more teeth through cementum only

• A spherical projection on the cemental root surface

What structure is formed in the crown first?

• Enamel

• Cementum

• Pulp

• Dentine

Which of following induces dental papilla cells to be differentiated into odontoblasts ?

• Stratum intermedium

• Reduced enamel epithelium

• Inner enamel epithelium

• Outer enamel epithelium

No basal lamina is found between cells of the ?

The stratum intermedium

• Induces dentin formation

• Is separated from stellate reticulum by a basal lamina

• Important for enamel calcification

• Is important for enamel maturation