| pubmed-article:2104325 | pubmed:abstractText | The position of the connective tissue attachment was determined by Ramfjord's method in subjects aged 20-29 and 40-49 years. In the determination four surfaces of all remaining incisors, canines, and premolars were considered. A defect of the connective tissue attachment was found in about 95% of the analysed dental surfaces in subjects aged 40-49 years. The frequency of occurrence of these defects varied depending on the type dental surface. | lld:pubmed |
