PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33616565-12 2021 CONCLUSION: Zirconia restorations cemented onto the tested non-original titanium bases should not be recommended for daily clinical use, as they were associated with significant increases in BOP and PD values and varying marginal bone levels 3 years after placement. zirconium oxide 12-20 BOP Homo sapiens 191-194