Apposition, Maturation, and Root Development

A primary tooth can begin to erupt into the oral cavity with the formation of:

• Hertwig Epithelial Root Sheath (HERS)

• Reduced Enamel Epithelium (REE)

• Cervical Loop

• Tomes Process

The movement of the nuclei of the inner enamel epithelial cells (IEE) is called:

• Reciprocal induction

• Amelogenesis

• Dentinogenesis

• Repolarization

Tags

NGSS.HS-LS1-4

Which parts of the tooth are secreted in successive layers during the apposition stage?

• Enamel, dentin, and cementum

• Enamel and dentin

• Enamel and cementum

• Dentin and cementum

The process by which ameloblasts begin the appositional growth of enamel matrix is called:

• Dentinogenesis

• Maturation

• Amelogenesis

• Reciprocal induction

(Fill in the blank) shapes the root of a tooth and determines the number of roots a tooth will have.

• Epithelial Rests of Malassez

• Hertwig Epithelial Root Sheath (HERS)

• Cervical Loop

• Reduced Enamel Epithelium (REE)

Alveoli are tooth sockets that are formed from the mineralization of the ectomesenchyme of the:

• Dental Sac

• Dental Papilla

• Enamel Organ

• PDL

An odontogenic cyst that forms from the REE after the crown has completely formed is called:

• Concescence

• Odontoma

• Nasmyth Membrane

• Dentigerous cyst

The outer cells of the dental papilla are induced by (fill in the blank) to differentiate into odontoblasts.

• Cementoblasts

• Basement membrane

• Preameloblasts

• Ameloblasts

Tags

NGSS.HS-LS1-4

Cells from the distintigrated HERS that are located in the mature periodontal ligament are called:

• Epithelial Rests of Malassez

• Preameloblasts

• Odontoblasts

• Cementoblasts

(Fill in the blank) results from the reduction in the quantity of enamel matrix.

• enamel hypocalcification

• enamel hypoplasia

• amelogenesis imperfecta

• dentinogenesis imperfecta