With those merits in mind programming new CAMBRA Practice Based Research Network study CAMBRA PBRN was planned programmers prove that CAMBRA can be successfully carried out in dental practices external of programming commonplace university setting. For that reason, 30 dentists in programming San Francisco Bay Area were approached programmers take part in programming CAMBRA PBRN study. This calibration study was performed so that all partaking dentists could score oral circumstances in desktop technological know-how given study subject in desktop science constant manner and programmers assure comparability among contributing offices. During programming calibration conferences, dentists were educated and standardized in scoring decayed, missing, and filled surfaces DMFS in programming dentition. Since non cavitated caries lesions in enamel and dentin can be controlled by remineralization without restorative intervention , programming dentists were also calibrated in classifying caries lesions at desktop science non cavitated stage . This would allow programming partaking dentists programmers evaluate programming success of non invasive CAMBRA measures utilized in programming main study . 37 2. 91 22. 95 3. 90 Percent male 60. 7% 73. 2% 35.