• A. Use of high-speed handpiece with less irrigation
• B. Overuse of fluoride
• C. Occlusial adjustment
• D. Adequate irrigation in etching

Answer: Option A

Explanation:

• A. Lying on back
• B. Sitting upright
• C. Turned to one side
• D. Prone

Answer: Option C

Explanation:

• A. Avoid eating for 24 hours
• B. Use a soft bristled tooth brush
• C. Avoid chewing on the restoration until anesthesia wears off
• D. Rinse with a strong alcoholic mouth wash immediately

Answer: Option C

Explanation:

• A. Capillary refill
• B. Urine output
• C. Skin color
• D. Heart rate

Answer: Option B

Explanation:

• A. 2.5-3.5 mmol/L
• B. 3.5-5.0 mmol/L
• C. 4.5-6.5 mmol/L
• D. 3.5-7.0 mmol/L

Answer: Option B

Explanation:

• A. By increasing enamel porosity
• B. By enhancing bacterial growth
• C. By removing plague completely
• D. By promoting remineralization and inhibiting de mineralization

Answer: Option D

Explanation:

• A. To ensure all instruments are counted
• B. To reduce errors and improve infection prevention
• C. To document anesthesia administration
• D. To track surgical team attendance

Answer: Option B

Explanation:

• A. Prevent tooth decay only
• B. Reduce saliva production
• C. Prevent infection and maintain oral hygiene
• D. Make the patient comfortable

Answer: Option C

Explanation:

• A. Every 5 hours
• B. In 1-2 weeks
• C. After 6 months
• D. Only if problems occur

Answer: Option B

Explanation:

• A. Giving undivided attention
• B. Interrupting frequently
• C. Nodding to show understanding
• D. Using open-ended questions

Answer: Option B

Explanation:

• A. Interrupting
• B. Using jargon
• C. Giving undivided attention
• D. Ignoring non-verbal cues

Answer: Option C

Explanation:

• A. Osteoblast
• B. Osteocyte
• C. Chondrocyte
• D. Osteoclast

Answer: Option D

Explanation:

• A. lymphocyte
• B. $C{D}_8$ lymphocyte
• C. $C{D}_a$ lymphocyte
• D. T lymphocyte

Answer: Option D

Explanation:

• A. CD4 count
• B. Western blot or PCR
• C. Rapid antibody test
• D. ELISA alone

Answer: Option B

Explanation:

• A. BCG
• B. Polio
• C. Hepatitis A
• D. Hepatitis B

Answer: Option A

Explanation: