90846

Carbamide peroxide used in bleaching degrades into 3% hydrogen peroxide and 7% urea. The breakdown process: 1) 10% carbamide peroxide releases approximately 3% hydrogen peroxide, 2) The hydrogen peroxide is the active bleaching agent that breaks down chromophores, 3) Urea provides pH buffering and reduces sensitivity, 4) The slow release over 6-8 hours provides sustained bleaching action. This makes carbamide peroxide ideal for home bleaching as it provides controlled, sustained hydrogen peroxide release.

14754

While Coarctation is a major congenital cause, Acute Glomerulonephritis is a very common acquired cause of pediatric hypertension in the Indian clinical setting. However, the provided key emphasizes Coarctation.

39710

The primary reason for full mouth radiographs in edentulous patients is to detect retained root tips that could cause future complications. While other pathology may be found, this is the main indication.

63841

Gastric emptying is regulated by a combination of vagal reflexes, intestinal hormones such as secretin and cholecystokinin, and local neural reflexes known as the enterogastric reflex. These mechanisms work in concert to modulate the rate of emptying based on the needs of the body.

89181

If vitality can be maintained, a pin-retained composite core is preferred for anterior aesthetics and conservation of tooth structure.

43433

A chisel can effectively remove gross subgingival calculus in deep narrow pockets with fibrotic tissue.

89762

13867

Tetracycline is often prescribed for juvenile periodontitis (also known as aggressive periodontitis) due to its effectiveness against the specific bacteria involved in the condition, such as Aggregatibacter actinomycetemcomitans. 

88405

Cervical sympathetic paralysis (Horners syndrome) causes anhidrosis of the homolateral (same) side of the face due to loss of sympathetic innervation to sweat glands. This results in decreased sweating on the affected side. Facial nerve trauma affects motor function, trigeminal nerve trauma affects sensation, and cerebral embolus affects central function, but none specifically cause unilateral facial anhidrosis.

46754

Ludwig's angina is a serious, potentially life-threatening infection of the floor of the mouth, typically polymicrobial in nature. The most common causative agents are bacteria that are part of the normal oral flora, primarily streptococci (both aerobic and anaerobic) and anaerobes, especially Bacteroides and Fusobacterium species. Anaerobic streptococci are frequently isolated from these infections, making them a primary agent.