Fig 4. EDS analyses of zirconia abutments.

Spectra and elemental composition of abutment with first cement Er:YAG laser (G1 Er1) for more cement (Top Left) and less cement area (Top Right); spectra and elemental composition of abutment with repeated cement Er:YAG laser (G1 Er2) for more cement (Middle Left) and less cement area (Middle Right); and spectra and elemental composition of abutment with cement Er,Cr:YSGG laser (G2) for more cement (Bottom Left) and less cement area (Bottom Right). While all less cement abutment compositions were similar, there seemed to be more cement in G2 group as per different spectra/elemental compositions compared to other groups (Arrow).