A. 60 to 65%

C. 55 to 60%

D. 50 to 55%

A. defense cells

C. Fibroblasts

D. Histocytes or resting wandering cell

B. Necrosis

C. Calcific degeneration

D. Ulceration

A. Function of enamel organ

B. Shape of enamel organ

C. Shape of dental papilla

A. Dentin

C. Pulp

D. Cementum

A. Enamel

B. Dentin

D. Dental pulp

A. 2:01

B. 1:04

C. 1:02

A. Hyaline layer of Hopewell-smill

B. Stratum intermedium

C. Stellate reticulum

B. The plasma membrane of osteoclasts adjacent to bone that is being resorbed is known as striated or ruffled border

C. Contain lysosomes with acid phosphates

D. Monocytes are precursor cells of osteoclasts

A. Reduced dental organ

B. Odontoblastic processes

D. Dental pulp

A. Straight

B. Scalloped and the convexities are directed towards enamel

D. Non-scalloped

B. Reactionary dentin

C. Secondary dentin

D. Indeed dermal tubules

A. Smear layer

B. Length of dentinal tubules

D. Diffusion coefficient

B. Greatest in the middle-third of a multirooted tooth

C. Greatest in the middle-third of a single rotted tooth

D. A net like plexus that runs closer to the cementum than to the bone

A. 6th week of IU

B. 18th week of IU

D. 10th week of IU

A. None of the above

B. Straight

C. Concave

A. Sclerotic transparent dentin appears transparent or light in transmitted light and dark in reflected light

C. Reparative dentin is characterized by having fewer and more twisted tubules than normal dentin and may include odontoblasts

D. Dead tracts appear black in transmitted and white in reflected ligth

B. Incremental lines of enamel

C. Enamel lamella

D. Enamel cuticle

B. Presence of incremental lines

C. Enamel has high reparative capacity

D. Presence of high percentage of organic matrix

A. Cementum

B. Alveolar bone

C. Gingiva

B. Desmolytic stage

C. Morphogenic stage

D. Formative stage

A. 7 microns

C. 0.2-0.3 microns

D. 0.2-0.5 microns

A. Enamel (anterior teeth)

B. Dentin

D. Enamel (Posterior teeth)

A. Capillary

C. Osteoblasts

D. Fibroblasts

A. Cementum does not meet enamel

B. Cementum overlaps enamel

D. Cementum meets enamel

A. 9th week IU

B. 4th week IU

C. 2nd week IU

A. Circumpulpal dentin

B. Secondary dentin

D. Mantle dentin

A. Exophytic

B. Osteophytics

C. Cancellous

A. Incremental deposition

B. Peritubular dentin

D. Due to excess amount of organic component

B. Each ameloblast contributes to 4 different rods

C. Each rod is formed by 4 ameloblasts

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

A. Enamel is harder than dentine

B. Odontoblast produce dentin

C. Enamel has no cells

A. Inter tubular dentin

C. Dentinal tubules

D. Circum pulpal dentin

B. 3.8 cc

C. 0.02 cc

D. 0.58 cc

A. Fluid or hydrodynamic theory

C. Direct neural stimulation

D. Transduction theory

A. Horizontal

B. Transseptal

C. Oblique

B. Inner enamel epithelium

C. Dental papilla

D. Dental follicle

B. Dentin

C. Pulp

D. Bone

A. Insensitive

B. Caries susceptible

D. Hypersensitive

B. Dentogingival

C. Transeptal

D. Horizontal

A. None of the above

B. Vascular

D. Has blood supply initially only

A. Originate from tomes granular layer

B. Type of sharpeys fibres

D. With out but not with in the dentin

B. Fibroblasts

C. Multi totipotent cells

D. Cementoblasts

B. Vimentin filament

C. Collagen fibre

D. Tono filament

A. size of the cells

B. The number or organelles

D. Collagen fibre formation

A. Non-myelinated nerve fibres

B. Collagen fibres

C. Reticulum

A. Terminate as rounded process

C. Surrounded by inter prismatic enamel

D. Found in the region of cusps

A. Apical

C. Horizontal

D. Trans-septal

A. Physiological repair

B. Hyperplasia

D. Functional repair

A. Vascular tissue

B. Nerve tissue

D. Granulation tissue

A. Predentin

C. Peritubular dentin

D. Mantle dentin