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Table 1 Examinations and collected data

From: Interaction of titanium, zirconia and lithium disilicate with peri-implant soft tissue: study protocol for a randomized controlled trial

Examination type Examination time Collected data
Screening Before implantation; every patient eligible for the study regardless of his/her participation in the trial Checking of the inclusion/exclusion criteria
Implantation Before inclusion in clinical trial  
Pretreatment examination Before randomization Clinical control of implant site; informed consent
Baseline: second-stage surgery and insertion of first abutment 90 ± 14 days after implantation Tissue sampling (control punch biopsy)
Photo documentation
X-ray control
PICF sampling 7, 14, 21, and 28 (±1) days after insertion of the first, second, and third abutment PICF sampling
Plaque Index (PI)
Gingival Index (GI)
Probing depth (PD)
Bleeding on probing (BOP)
Tissue sampling and insertion of second and third abutments 2–5 days after the last PICF sampling around the first, second, and third abutment Tissue sampling (ring biopsy)