B. Shape of enamel organ

C. Function of enamel organ

D. Shape of dental papilla

B. 18 weeks

C. 6 weeks

D. 16 weeks

B. Osteoblastic activity

C. Healing activity

D. Myeloid activity

A. Diffusion coefficient

B. Smear layer

C. Length of dentinal tubules

B. Hunter-Schregar bands

C. Neonantal bands

D. Striae of Retzius

A. Fibroblasts

C. defense cells

D. Histocytes or resting wandering cell

A. Type of sharpeys fibres

B. Originate from tomes granular layer

D. With out but not with in the dentin

A. Necrosis

B. Ulceration

C. Calcific degeneration

B. Bone is more resistant to resorption than cementum

C. Both are equally resorbable

D. None of the above

B. They contain secretory granules in the apical Cytoplasm and the secretion of granule content occurs by exocrytosis

C. They are specialized for the synthesis, storage and secretion of proteins

D. Serous cells are pyramidal in shape

A. Horizontal

B. Apical

D. Oblique

A. Dividing epithelial bridges

C. Defects in cementogenesis

D. Adherent epithelial rests

A. Formation of cementum

B. Formation of pulp

C. Formation of periodontal ligament

A. Circum pulpal dentin

B. Dentinal tubules

C. Inter tubular dentin

A. reversal of functional polarity

B. morphodifferentiation

C. Formation of hammock ligament

B. Inner enamel epithelium

C. Stratum intermedium

D. Outer enamel epithelium

A. Enamel knot

B. Enamel cord

D. Enamel Cuticle

A. Each rod is formed by 4 ameloblasts

B. Head of the rod is formed by one ameloblasts, and tail is formed by three other ameloblasts

C. Each ameloblast contributes to 4 different rods

A. Presence of incremental lines

B. Enamel has high reparative capacity

D. Presence of high percentage of organic matrix

A. It lacks the capacity to regenerate

B. It is avascular

D. It is devoid of perichondrium

B. Dental pulp

C. Odontoblastic processes

D. Reduced dental organ

A. None of the above

C. Hypoplasia of hereditary origin

D. Hypoplasia of local origin

B. Increased fibrotic component

C. Calcification in blood vessels near apical foramen

D. Decreased cellular component

A. Dentin

B. Pulp

D. Cementum

A. Sclerotic dentin

B. All of the above

C. Reparative dentin

A. The apical foramen is surrounded by cementum

C. Cementum is thickest towards the apex (150-200?m)

D. Cementum is thinnest at CEJ (20-50?m)

A. Parotid gland

B. Major salivary glands

C. Minor salivary glands

B. Avascular

C. None of the above

D. Devoid of nervous tissue

B. Cutting cone

C. Haversion cone

D. Howships cone

A. Dental lamina

B. Stellate reticulum

D. Neutral ectodermal cells

A. Collagen fibre formation

C. size of the cells

D. The number or organelles

A. Mantal dentin

B. Interglobular dentin

C. Intertubular dentin

A. Morphogenic stage

B. Formative stage

C. Desmolytic stage

A. Sharpehys fibres and elastic fibres

B. Lacunae and elastic fibres

C. Collagen fibres and blood vessels

A. Alveolar sockets

B. Gubernacular cords

D. Cementum

A. Cell rich zone

B. Cell degenerated zone

C. Cell regenerated zone

A. Apical

B. Horizontal

D. Transeptal

B. Intermediate cementum

C. All of the above

D. Acellular cementum

A. Calcification

B. Apposition

C. Differentiation

B. Secondary dentin

C. Reactionary dentin

D. Indeed dermal tubules

A. Tooth bud stage

B. Pulpal end

C. Cervical area

A. Gingiva

B. Alveolar bone

D. Cementum

B. They elicit pain to chemicals

C. They elicit pain to hot and cold

D. They elicit pain to touch and pressure

A. All fatty marrow

B. All fibrous marrow

D. All red marrow

A. Oxytalan fibres

B. Elastic fibres

C. Type II collagen fibres

A. Oblique

C. Horizontal

D. Alveolar crest

A. Elastin

C. Chitin

D. Keratin

A. Osteocytes

B. Osteoblasts

C. Ameloblasts

A. Mantle dentin

C. Secondary dentin

D. Circumpulpal dentin

A. Forebrain

B. Rathkes pouch

C. Odontoblasts