1. History of dental surgery;Koch,1909
2. Sulfuric acid for opening root canals;Callahan;Dent Cosmos,1894
3. Unusual endodontic complication: report of a case;Harris;JADA,1971
4. Sealing of developmental pits and fissures. I. In vitro study;Lee;J Dent Res,1971
5. An adhesive dental restorative material;Lee;J Dent Res,1971