31300

Discoloration of endodontically treated teeth results from all the mentioned factors: 1) Improper debridement - leaving pulp tissue remnants that decompose and stain dentin, 2) Sealer cement left in pulp chamber - certain sealers contain heavy metals that cause gray discoloration, 3) Obturating materials - silver points cause gray-black discoloration, some sealers stain over time. Prevention involves: thorough pulp chamber cleaning, complete sealer removal from chamber, avoiding silver points, and proper access cavity seal.

39082

99977

N-acetylcysteine (NAC) is the antidote for paracetamol toxicity. It works by replenishing glutathione stores in the liver, which neutralizes the toxic metabolite NAPQI.

25608

A dental floss safety ligature is tied to the bow to allow for retrieval of the clamp if it becomes dislodged, preventing the patient from accidentally swallowing or aspirating it.

99732

The epithelial cells of the villi in the small intestine are responsible for the final stage of digestion and nutrient absorption, playing a crucial role in the digestive process.

27997

Open-ended lead-lined cones reduce the intensity of scattered radiation.

41668

The main aim of restoration of carious lesions in phase-I therapy is to reduce microbial source.

46779

Fabrication of ceramics and metals like titanium that are difficult to cast, is done by CAD-CAM process and copy milling.

33766

In an average child the mixed dentition period is from 6 yrs to 13 y

84088

The combination of abdominal cramps, hypersalivation, fever, skin rashes on palms and soles, generalized gingival inflammation, and multiple oral ulcers is characteristic of heavy metal poisoning, specifically mercury poisoning (acrodynia).