Table 4-25 presents the results of the CPI examinations performed on the convenience sample of dentate adults age 20 and older, showing the distribution of highest sextant scores for each site. Across all sites, the most frequent highest sextant score reflected the presence of 4 to 5 mm pockets; a threshold often used to denote possible periodontitis. Overall 40% of examinees had such pockets, and an additional 9% had deeper pockets, a sign of advanced disease. There was substantial variation across the sites, ranging from a low of 15% to a high of 59%. At 4 of the sites, the proportion of examinees with 4 mm or greater pockets, was more than the U.S. national figure of 22% but less than the figure of 54% for Native American Indians and Alaska Natives found in 1988-1994 (U.S. Department of Health and Human Services, 2000). Slightly more than half of all examinees did not have pockets this deep, but all examinees showed signs of gingival bleeding and/or calculus, conditions that can be alleviated with prophylaxes and improvement in oral hygiene behaviors. Table 4-25. CPI Examination Results Distribution of CPI Scores, by Site (Number examined)
Highest CPI Category 0—Healthy, no bleeding, no pockets
1—Bleeding, no pockets
2—Calculus, no pockets
3—4 to 5 mm pockets 4—6 mm or greater pockets
Clinical Technical Performance
The clinical technical performance evaluations applied in these cases studied have been designed to determine the rate at which selected clinical procedures meet well-accepted criteria for acceptability. Although an “unacceptable” rating for one or more of the criteria evaluated in these measures normally represents failure in the context of a licensing examination or a dental school clinic, the rate at which such unacceptable performances occur in dental practice is unknown. For the evaluations of restorations reported here, results for therapists and dentists are reported separately. The intent is to establish local norms to which therapist performance can be compared in the absence of professional norms.
Published on Dec 20, 2011