Periodontium of abutment teeth affected by porcelain fused to metal crowns of Ni-Cr alloy, precious metal and galvanized forming crowns/bridges: One-year follow-up visit
Lü Hui, Tan Hong
Chinese Journal of Tissue Engineering Research . 2010, (
21
): 3977 -3980 . DOI: 10.3969/j.issn.1673-8225.2010.21.043