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Oral Pathology
Darier’s disease is associated with a deficiency of Vitamin A involving mucosa and epithelium.
Dental Materials
Etching of tooth surface with 37% phosphoric acid creates microporosities in the enamel and dentin. This is the main method of adhesion of composite resin to tooth surface.
After etching the surface energy of the enamel will inc
Physiology
The pupillary light reflex is mediated by the parasympathetic nervous system, which uses acetylcholine as its neurotransmitter and acts on muscarinic receptors. The contraction of the sphincter pupillae muscle, which is innervated by the parasympa