[Individual differences in the marginal periodontium of crowned and non-crowned topographically identical teeth].

A comparison was made on 191 crowned teeth in 125 patients altogether with removable partial replacements after average wear of 4.8 years with the corresponding number of contralateral uncrowned teeth. It could be shown that there was no significant difference between crowned and uncrowned teeth in respect of periodontal changes (loosening and deepening of pockets of pockets, periodontal diagnosis). Findings in crowned teeth had a frequent tendency to worsen.