[Follow-up studies on the caries susceptibility and gingival irritation by partial dentures]

Caries incidence and gingival irritation were studied in 245 teeth with partial crowns of 62 patients of a dental practice after an average 3.24 years of wearing such crowns. At the beginning of the treatment, the group of patients tested showed an average caries incidence with a DMFT index of 14.9 +/- 4.0. In the follow-up, the mean value of the simplified OH index was 1.16 +/- 0.34. None of the partial crowns had to be re-cemented because of insufficient retention in the period covered by this study. Secondary marginal caries developed in only 0.4%, primary caires in 6.1% of the teeth with partial crowns. Marginal inflammation was significantly more frequent in teeth with partial crowns than in teeth without crowns. When evaluating the individual sections of the crowns, the highest degree of inflaterproximal region.