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Endodontics - 3 Questions
Hydroxylation of protocollagen to true collagen in wound healing requires all three factors: 1) Oxygen - provides the oxidizing environment necessary for the hydroxylation reaction, 2) Ferric ion (Fe3+) - acts as a cofactor for the enzyme prolyl hydroxylase, 3) Ascorbic acid (Vitamin C) - essential cofactor that maintains iron in the ferrous state and is required for prolyl and lysyl hydroxylase activity. Deficiency of any of these factors leads to defective collagen synthesis, resulting in poor wound healing and scurvy-like symptoms.
Hemisection involves cutting the tooth through the bifurcation and removing one root with its associated crown portion. This is appropriate when one root has severe periodontal or carious involvement while the other root is healthy.
Periapical radiographs are essential tools in endodontic practice. They help in determining the length of the root canal during procedures like root canals. They can also reveal signs of infection or inflammation around the apex of the tooth (periapical pathosis), which indicates the presence of infection in the pulp.
MCQ