Question: Tooth develops from_______________?

• 1. Ectoderm, mosoderm
• 2. Ectoderm
• 3. Mesoderm
• 4. Ectoderm and endoderm

Question: The relationship between the pulpal and periodontal tissue complex begins during dental development at_____________?

• 1. Adolescent stage
• 2. 5-10 years
• 3. Embryonic stage
• 4. None of the above

Question: The cells of the enamel organ which differentiate into future ameloblasts are_____________?

• 1. Cells of inner enamel epithelium
• 2. Cells of outer enamel epithelium
• 3. Cells of stellate reticulum
• 4. Cells of stratum intermedium

Question: The cap stage in tooth development is characterized by_____________?

• 1. morphodifferentiation
• 2. reversal of functional polarity
• 3. Formation of hammock ligament
• 4. Increased mitotic activity

Question: In cap stage, regulating factor for cusp shape formation is present in____________?

• 1. Dental papilla
• 2. Dental follicle
• 3. Inner enamel epithelium
• 4. Enamel Knot

Question: Which of the following is not an ecto-mesenchymal derivative ?

• 1. Dentin
• 2. Cementum
• 3. Pulp
• 4. Enamel

Question: The disturbances occurred during Calcification stage of tooth development is seen in_____________?

• 1. Peg laterals
• 2. Microdontia
• 3. Supernumerary tooth
• 4. Interglobular dentin

Question: Stellate reticulum is seen in______________?

• 1. Dental lamina
• 2. Enamel organ
• 3. Hertwig’s root sheath
• 4. All of the above

Question: Order of development of tooth germ is____________?

• 1. Bell-bud-cap
• 2. Cap-bell-bud
• 3. Bud-cap-bell
• 4. Bell-cap-bud

Question: Atypical or osteodentin is formed due to disturbance during____________?

• 1. Morphodifferentiation
• 2. Histodifferentiation
• 3. Apposition
• 4. Initiation