1. Dimensions and relations of the dentogingival junction in humans;Gargiulo;J Periodontol,1961
2. Gingival reaction to dental restorations;Karlsen;Acta Odontol Scand,1970
3. The relationship between the location of subgingival crown margins and gingival inflammation;Newcomb;J Periodontol,1974
4. Gingival inflammation and plaque accumulation by well adapted supragingival and subgingival proximal restorations;Renzzli;Helv Odontol Acta,1972
5. Periodontal conditions in patients treated with dental bridges;Silness;J Periodont Res,1970