Some statistical aspects of a clinical study on dental caries in children

Percentages of lifetime caries experience retained by eight systems of partial DMF‐recording

“…A somewhat lower consistency was observed with the systems of MARTHALER (5,6) and MOLLER (8). The greatest variations were present with the systems of GELLIER et al (2) and BOEDECKER & BOEDECKER (1). These two systems showed as well a clearly lower than average performance on the Zurich material selected with a view to high DMF-counts.…”

“…The systems of CELLIER et al (2) and DE PAOLA (4) retained only 81.0 and 81.9% on average. The two Manchester systems retained 88.7 and 89.5%.…”

“…These two systems showed as well a clearly lower than average performance on the Zurich material selected with a view to high DMF-counts. Of the systems with 28-36 surfaces, the system of CELLIER et al (2) showed the strongest dependence on the type of material.…”

“…High school students in Wurzburg, Germany MARTHAEER (7) 1965 Children of Zurich, Switzerland, selected for high surface counts, with data by surfaces given in Table 3 1968 Ci:i.EiER et at. (2) Initial examination of an incremental study with a fluoridated dentifrice in Australia 1968 CiiLi.iER et at. (2) Final examination of the incremental study maxillary central incisors in the 80 children as many as 114, or 71.3%, were decayed or filled (but rarely missing).…”

“…(2) Initial examination of an incremental study with a fluoridated dentifrice in Australia 1968 CiiLi.iER et at. (2) Final examination of the incremental study maxillary central incisors in the 80 children as many as 114, or 71.3%, were decayed or filled (but rarely missing). This exemplifies the high caries level of this special sample.…”