1. Effect of silicate, amalgam, and cast gold on the gingiva;App;J Prosthet Dent,1961
2. Effect of rough surfaces upon gingival tissue;Waerhaug;J Dent Res,1956
3. Reactions of marginal periodontal tissues to restorative procedures;Loe;Int Dent J,1968
4. Tissue reactions to string packs used in fixed restorations;Loe;J Prosthet Dent,1963
5. Reaction of marginal gingiva to crown and bridge procedures. Part I;Duncan;J Miss Dent Assoc,1979