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Evidence-Based Dentistry & Critical Appraisal

Community Dentistry & Research Methods • NEET MDS Study Guide • AI-Generated Notes

⭐ High-Yield Facts for Exam

  • PICO frames clinical questions.
  • NNT = 1/ARR.
  • CONSORT = RCT reporting.
  • STROBE = observational; PRISMA = reviews.
  • Cochrane = gold-standard review database.

Evidence-Based Dentistry & Critical Appraisal

Framing Questions

PICO — Population, Intervention, Comparison, Outcome — structures clinical questions for searching evidence.

Useful Measures

  • NNT (number needed to treat) = 1 / absolute risk reduction (ARR).
  • Relative risk, odds ratio, confidence intervals.

Reporting Guidelines

  • CONSORT — randomised trials.
  • STROBE — observational studies.
  • PRISMA — systematic reviews/meta-analyses.
  • Cochrane — gold-standard systematic review database.

Exam Tips ⭐

PICO frames questions; NNT = 1/ARR; CONSORT (RCT), STROBE (observational), PRISMA (reviews).

📝 Practice MCQs — Evidence-Based Dentistry & Critical Appraisal

Q1. PICO stands for Population, Intervention, Comparison and:
A. Odds
B. Outcome
C. Observation
D. Order
Show Answer
✅ Answer: B
PICO = Population, Intervention, Comparison, Outcome.
Q2. NNT is calculated as:
A. 1/ARR
B. ARR x 100
C. 1/RR
D. OR x 2
Show Answer
✅ Answer: A
Number needed to treat = 1 / absolute risk reduction.
Q3. Which guideline is for reporting systematic reviews?
A. CONSORT
B. STROBE
C. PRISMA
D. SPIRIT
Show Answer
✅ Answer: C
PRISMA guides systematic review/meta-analysis reporting.
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