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Dental Hygiene: EBD

Toolkit for Dental Hygiene

Levels of Evidence Pyramid

Evidence pyramid showing levels of evidence

Adapted by permission from Dartmouth Biomedical Libraries

Forrest & Miller, EBDM in Action: Developing Competence in EB Practice


How to use the PICO search option in TRIP:

Asking an answerable clinical question: 

EBD Books


Evidence-based Dentistry (EBD) is an approach to oral health care that requires the judicious integration of systematic assessments of clinically relevant scientific evidence, relating to the patient's oral and medical condition and history, with the dentist's clinical expertise and the patient's treatment needs and preferences. Policy Statement on Evidence-based Dentistry (ADA)

Evidence-Based Medicine is the integration of current best research evidence with clinical expertise and patient values in making decisions about the care of individual patients. Sackett DL, Straus SE, Richardson WS, et al. Evidence-based medicine: how to practice and teach EBM. 2d ed. Edinburgh: Churchill Livingstone, 2000.

Levels of Evidence is a ranking system used in evidence-based medicine to describe the strength of information. The higher the point in the pyramid the lower the the likliehood of bias in any statement/finding reported.

Sources below mirror the pyramid on the left.

Meta-Search Engines

Critically Appraised Journal Articles

Point of Care Tools