Shorts

Primary prevention aims to stop disease before it starts. Pit and fissure sealants protect tooth surfaces and prevent caries formation.
Serial extraction and scaling and root planning are examples of secondary or tertiary prevention, as they involve treatment after a condition (malocclusion or periodontal disease) has already started.
Fluoride use on incipient caries is also secondary prevention as it aims to halt the progression of an already existing early lesion.

The National Oral Health Programme NOHP has provisions for integrating oral health screening within school health services under India/s Rashtriya Bal Swasthya Karyakram RBSK.The NOHP aims to provide integrated, comprehensive oral healthcare within existing health facilities and to integrate oral health promotion and preventive services with the general healthcare system

Sialadenitis from radiation damage reduces salivary flow leading to xerostomia.

Bone remodeling is a continuous, lifelong process that involves the removal (resorption) of old or damaged bone by osteoclasts and the formation (deposition) of new bone material by osteoblasts. This coupled activity is essential for maintaining the structural integrity of the skeleton and adapting to mechanical stress (Wolff's Law). While intramembranous and endochondral ossification are the two main processes of initial bone formation during development, the ongoing changes and reshaping of the bone structure after its initial formation, including during craniofacial development, occur through this dynamic balance of resorption and deposition. 

• Diatomaceous earth (an inert filler) is the largest component of alginate impression material by weight percentage. It makes up approximately 60% of the material.
• Potassium alginate (the reactive component) is the next largest component, usually around 15-20%.
• Calcium sulfate (the reactor) and sodium phosphate (the retarder) are present in smaller quantities.

Adenoid cystic carcinoma is aggressive due to perineural invasion and frequent metastasis.

Oral lichen planus is a T-cell mediated autoimmune disease. IFN-γ and TNF-α are present in lesions and involved in its pathogenesis. IFN-γ is the key cytokine in cellular immune response.

Aggressive periodontitis is characterized by rapid attachment loss and bone destruction, but the amount of microbial deposits (plaque and calculus) is typically inconsistent with the severity of the destruction, often appearing minimal. The other options (deep pockets in all areas, increased mobility without clinical signs, widespread gingival recession) are general signs of periodontal disease but not specific diagnostic features that differentiate aggressive from chronic forms.

The recommended IM dose for 6–12 years is 0.3 ml of 1:1000 adrenaline. For children aged 6 to 12 years experiencing anaphylaxis, the recommended intramuscular dose of 1:1000 adrenaline (epinephrine) is typically 0.3 mL.