Table 1 Descriptive data concerning case numbers, defect types, the kind of space filling, CP complication rates and kinds of complications, number of inserted implants and implant failures, reasons for implant failure as well as the follow-up periods

Case numbers

372

Defect types

Horizontal, horizontal/vertical

Space filling

autogenous, allogeneic, autogenous/allogeneic mixture, allogeneic/xenogeneic mixture

Time to implant placement

4–6 months

Implant numbers

656

Follow-up period

Ranging from 1 to 12 years

Number of implant failures

4

Reasons for implant failures

Peri-implantitis

Number of CP complications

30

Kind of CP complication

Dehiscence, early plate and screw exposition, plate loss during implant placement, plate loosening

Implant placement possible with CP complications?

Yes, in all cases with exception of 3 cases with plate loosening during the healing period and complete CP loss and 1 case with dehiscence