MCQs on Oral Histology - Development and Growth of Teeth

# The bud, cap and bell stage of the developing tooth are based on growth of the:
A. Stellate reticulum
B. Dental papilla
C. Enamel organ
D. Dental sac

# Dental lamina is active up to :
A. 1 year
B. 2 years
C. 4 years
D. 5 years

# Dental papilla gives rise to:
A. Pulp only
B. Pulp and dentin
C. Pulp and periodontal ligament
D. All of the above

# Ectodermal cells in tooth bud are responsible for :
A. Determination of shape and crown of root
B. Formation of periodontal ligament
C. Formation of cementum
D. Formation of pulp

# Disturbance during the morphodifferentiation stage of tooth development will result in:
A. Change in number of teeth
B. Ameloblastoma
C. Change in form and number of teeth
D. Hypoplasia

# In considering the process of eruption, the prefunctional eruptive stage of a tooth begins when the:
A. Bud stage begins
B. Cap stage begins
C. Bell stage begins
D. Dental lamina begins forming

# First appearance of tooth formation occurs in:
A. 6th week IU
B. 2nd week IU
C. 9th week IU
D. 4th month IU

# Hertwig's epithelial root sheath is made up of :
A. Outer and inner enamel epithelium
B. Stratum intermedium
C. Stellate reticulum
D. Hyaline layer of Hopwell Smith

# In multirooted teeth, formation of multiple roots is due to presence of:
A. Epithelial diaphragm
B. Cell rests of Malassez
C. Tooth bud division or bell stage
D. None of the above

# Following is derivative of dental lamina:
A. Epithelial rests of Malassez
B. Enamel pearls
C. Rests of Serres
D. All of the above

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