Fidelity of motivational interviewing with families in high-caries-risk children.

Motivational interviewing is a skill which requires multifaceted training, practice and mentoring to meet accepted proficiency thresholds. Monitoring of MI using a validated tool is essential to ensure delivery as intended and accurately attribute outcomes to the intervention. Dental organizations intending to implement MI for caries prevention should be aware of the demands on time and resources required to deliver proficient MI and monitor fidelity.