Dental Pulp

what percentage of dental pulp is composed of water by weight?

• 50%

• 75%

• 60%

• 90%

 Which growth factor family is important in regulating odontoblast function?

• vascular endothelial growth factor(VEGF)

• epithelial growth factor(EGF)

• transforming growth factor (TGF)

• fibroblast growth factor (FGF)

When odontoblasts die due to injury, which cells replace their function?

• osteoblasts

• epithelial cells

• subodontoblastic stem cells

• fibroblasts

gap junctions between odontoblasts serve what function?

• reduce permeability

• allow passage of small molecules between cells

• anchor odontoblasts to dentin

• prevent electrical signaling

where is plexus of Raschkow located?

• beneath the odontoblast layer in the crown

• near the dentin-enamel junction

• within the cementum

• near the root apex

neuropeptide responsible for the vasoconstriction in dental pulp is?

• CGRP and Nitric Oxide

• Noradrenaline and neuropeptide Y

• Substance P and acetylcholine

• Dopamine and serotonin

pulp stones are most accurately described as?

• malignant calcifications

• age related changes

• indication of root canal therapy

• signs of acute pulpitis

what is typically the earliest response of pulp to dental caries?

• odontoblast apoptosis

• necrosis

• inflammation

• secondary dentin formation

A 25 year old patient presents with a history of mild trauma to the maxillary central incisor two weeks ago. The tooth has now become discolored but not painful. Cold and electric pulp testing show no response. What is the most likely diagnosis?

• pulp stones

• carious tooth

• age related change

• pulp necrosis