A. Plexus of Rashkow or parietal layers of nerves is formed by network of peripheral axons located adjacent to cell rich zone

B. Pulpal pressure is highest among body tissues

D. Majority of nerve that enter the pulp are non myelinated and are sympathetic in nature

A. Reinforced auto care glass ionomer cement

B. Ceramic reinforced glass ionomer cement

D. Compomer

A. Polysiloxane

C. Phosphoric acid

D. Ion leachable glass

A. Maxillary sinus communicates with environment through middle meatus and nasal vestibule

C. Maxillary sinus is four- sided pyramid

D. In most of the cases, the main ostium is present in posterior third of hiatus semilunar

A. 38 mm

C. 28 mm

D. 58 mm

B. Dental pulp

C. Enamel

D. Dentin

A. It has only a small percent of organic content

B. It is essentially a keratin tissue and has no blood vessels

C. It has no direct connection with the active cells of the dental pulp

B. Rays fibres

C. Tomes fibres

D. Elastic fibres

A. Triple pleated sheath

B. Mostly contains glycine residues

C. Exhibit cross striations at 64 ?m

A. No secondary cementum forms

C. Cervical third of the root

D. Middle third of the root

A. Support and retention to the complete denture

B. Boundaries for the tongue during speech

C. Attachment to muscles of facial expression

A. 65 to 70%

B. 55 to 60%

C. 70 to 75%

A. Represents area of entrapment of hertwigs sheath in dentin or cementum

C. Predominantly seen in apical tow thirds of roots of molars and premolars and is rare in incisors or deciduous teeth

D. Does not exhibit features of either dentin of cementum

A. Gingiva and cementum

B. Cementum and periodontal ligament

D. Gingiva, cementum and alveolar bone

B. Hyperplasia

C. Functional repair

D. Physiological repair

A. Bone

C. Pulp

D. Dentin

A. Enamel forms faster than dentin

B. Enamel forms more cervically than dentin

D. Processes of their cells remain in content with each other

B. Osteoclast

C. Osteocyte

D. Osteoblast

A. 1/2 that of enamel

B. 1/5 that of enamel

D. 1/7 that of enamel

B. Direct neural stimulation

C. Transduction theory

D. Hydrostatic theory

A. Monocytes are precursor cells of osteoclasts

C. Contain lysosomes with acid phosphates

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

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

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

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

A. Multi totipotent cells

B. Cementoblasts

D. Fibroblasts

A. 60 to 65%

B. 55 to 60%

D. 50 to 55%

B. It has uniform width

C. Cervical third

D. Apical third

B. The formation of enamel and dentin are independent of each other

C. Enamel formation can occur in absence of dentin

D. None of the above

A. Line of enamel tufts

C. Line of cross striations

D. Retzius line

A. Enamel spindle

B. Enamel tuft

D. Enamel lamella

A. 9.5

C. 8.5

D. 5.5

A. Along with heparin on surface of mast cells

C. In gallbladder

D. In thymus

B. Tomes fibres

C. All of the above

D. Rays fibres

A. Alkaline phosphatase and urease

C. Catalase and phosphorylase

D. Acid phosphatase and catalase

A. Decreased in number of cementicles

B. Increased vascularity

C. Increased thickness

A. Formation is a slow process

B. Seen at the coronal portion of the tooth

C. Forms during root formation

A. Twisted

C. Curved

D. Lateral canal

A. Hypertrophy

C. Hypoplasia

D. Excementoses

B. Water irrigation

C. Dehydration

D. None of the above

A. Enamel meet cementum at a point

C. Cementum overlaps enamel

D. Both never meet

A. Infrapermeable membrane

C. Permeable membrane

D. Impermeable membrane

B. Pulp

C. Enamel

D. Cementum

B. Initiation

C. Apposition

D. Morphodifferentiation

A. Pulp & Periodontal ligament

C. Pulp only

D. All of the above

A. It has a major role

C. It has a minor role

D. None of the above

A. Inter tubular dentin

B. Secondary dentin

D. Peritubular dentin

B. Hyperplasia of cementum

C. Hypertrophy of cementum

D. None of the above

A. Supernumerary tooth

B. Peg laterals

C. Microdontia

B. TMJ

C. Skeletal muscle

D. None of the above

A. Protects the brain against exposure to cold air by arresting air in sinus temporarily

C. Lightening of skull weight and production of bactericidal lysozyme to the nasal cavity

D. Resonance of voice and enhancement of faciocranial resistance to mechanical shock

A. More than that of enamel

B. Equal to that of bone

D. More than bone

B. Dental sac

C. Stellate reticulum

D. Odontoblasts