證據來源 · Source
Ristic L, Dakovic D, Postic S, Lazic Z, Bacevic M, Vucevic D. Clinical Characteristics of Abutment Teeth with Gingival Discoloration. J Prosthodont.…
https://pubmed.ncbi.nlm.nih.gov/28383139/
證據來源 · Source
https://pubmed.ncbi.nlm.nih.gov/28383139/