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Updated: Mar 17, 2026

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Risk Judgment by General Dental practitioners: Rational but Uninformed
Eva Ellervall1, Berndt Brehmer2, Kerstin Knutsson3
1Health Evidence Network, World Health Organization Regional Office for Europe, Copenhagen, Denmark.
Dentists often overestimate the risk of complications when prescribing antibiotics for dental procedures. While their decisions align with their risk assessments, these judgments are frequently inaccurate and require evidence-based strategies for improvement.
Area of Science:
- Dental medicine
- Infectious disease prevention
- Clinical risk assessment
Background:
- Dentists' decisions on antibiotic prophylaxis involve risk assessment, yet adherence to guidelines is often low.
- Previous studies indicate challenges in the rational use of antibiotics in dental practice.
Purpose of the Study:
- To evaluate how general dental practitioners (GDPs) assess the risk of complications in patients with specific medical conditions when not administering antibiotic prophylaxis.
- Investigate the relationship between GDPs' risk assessments and their antibiotic prescribing behavior.
Main Methods:
- A postal questionnaire combined with telephone interviews was used.
- Risk assessments were quantified using visual analogue scales (VAS), ranging from 0 (insignificant risk) to 100 (very significant risk).
Main Results:
- The response rate was 51%. GDPs who administered antibiotics reported significantly higher mean risk assessments (54) compared to those who did not (14).
- Risk assessments were higher for conditions listed in guidelines than for those not listed.
- Risk assessments were higher for tooth extraction compared to scaling or root canal treatment, despite similar recommended risk levels.
Conclusions:
- GDPs' risk assessments were deemed rational but based on incomplete information, leading to overestimations.
- Antibiotic administration by GDPs was consistent with their risk assessments, though these assessments were often inflated.
- Behavioral change requires motivated clinicians and evidence-based implementation strategies to address inaccurate risk judgments.
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