Intervention/exposure of included studies
| Intervention/exposure group | Control treatment group | |||
|---|---|---|---|---|
| Source | Randomised/included exposure participants (non-completers), n | Treatment received | Randomised/included control participants (non-completers), n | Treatment received |
| Müller et al19 | 23 (7) | A mandibular two implant overdenture | 22 (4) | A mandibular complete denture with relines |
| Hamdan et al21 | 127 (24) | A mandibular two implant overdenture | 128 (14) | A mandibular complete denture |
| Awad et al13 | 127 (17) | A mandibular two implant overdenture | 128 (19) | A mandibular complete denture |
| Gjengedal et al12 | 30 (3) | A mandibular two implant overdenture | 30 (4) | A mandibular complete denture with relines |
| Morais et al15 | 30 (1) | A mandibular two implant overdenture | 30 (27) | A mandibular complete denture |
| Hamada et al23 | 62 (25) | A mandibular two implant overdenture | 40 (19) | A mandibular complete denture |
| Muller et al22 | 29 (unclear) | A mandibular implant supported overdenture | 24 (unclear) | A mandibular complete denture |
| Sebring et al27 | 41 (unclear) | A mandibular implant supported overdenture | 30 (unclear) | A mandibular complete denture |