Table 2

Concept	Keywords
First	"dental implants" [MeSH Terms] AND "dental abutments" [MeSH Terms] OR "definitive abutment" [Text Word] OR "healing abutment" OR [Text Word] OR "dental Implant-abutment Design" [MeSH Terms] OR "one abutment one time" OR "repeated disconnection" [Text Word] AND "bone loss" [Text Word] OR "marginal bone loss" [Text Word] OR "peri-implant bone" [Text Word] OR "crestal bone" [Text Word]
Second	"dental implants"[MeSH Terms] AND ("dental abutments"[MeSH Terms] OR "definitive abutment"[Text Word] OR "healing abutment"[Text Word] OR "dental implant-abutment design"[MeSH Terms] OR "one abutment one time"[Text Word] OR "OAOT"[Text Word] OR "abutment disconnection"[Text Word] OR "repeated disconnection"[Text Word]) AND ("bone loss"[Text Word] OR "marginal bone loss"[Text Word] OR "peri-implant bone"[Text Word] OR "crestal bone"[Text Word] OR "peri-implant marginal bone"[Text Word])

Concept

Keywords

First

"dental implants" [MeSH Terms] AND "dental abutments" [MeSH Terms] OR "definitive abutment" [Text Word] OR "healing abutment" OR [Text Word] OR "dental Implant-abutment Design" [MeSH Terms] OR "one abutment one time" OR "repeated disconnection" [Text Word] AND "bone loss" [Text Word] OR "marginal bone loss" [Text Word] OR "peri-implant bone" [Text Word] OR "crestal bone" [Text Word]

Second

"dental implants"[MeSH Terms] AND ("dental abutments"[MeSH Terms] OR "definitive abutment"[Text Word] OR "healing abutment"[Text Word] OR "dental implant-abutment design"[MeSH Terms] OR "one abutment one time"[Text Word] OR "OAOT"[Text Word] OR "abutment disconnection"[Text Word] OR "repeated disconnection"[Text Word]) AND ("bone loss"[Text Word] OR "marginal bone loss"[Text Word] OR "peri-implant bone"[Text Word] OR "crestal bone"[Text Word] OR "peri-implant marginal bone"[Text Word])