Table 2.

The success of regenerative treatment reported by the listed authors. As it is noted, the criteria vary among studies, making the concept of treatment success difficult to standardize. PD (Probing Depth); BL (Bone Loss); BOP (Bleeding on Probing); SUP (Suppuration); RF (Radiographic Fill); DF (Defect Fill). Adapted from Ramanauskaite et al. [34].

Success of Peri-Implantitis Regenerative Treatments
Author	Success Definition	Success Outcome
Jepsen et al., 2016 [42]	PD ≤ 4 mm, no BOP at 6 implant sites, no further BL	30% of implants
Schwarz et al., 2017 [45]	No BOP	Test: 4/6 patients Control: 5/9 patients Total: 9/15 patients (60%)
Roccuzzo et al., 2017 [29]	PD < 5 mm, no BOP or SUP, no further BL	Test: 7/12 (58.3%) implants Control: 2/14 (14.3%) implants
Aghazadeh et al., 2012 [25]	PD ≤ 5 mm, max 1 site with BOP, no SUP, no BL PD ≤ 5 mm, no BOP, no SUP, no BL	Test: 38.5% implants Control: 13.9% implants Test: 8 implants (20.5%) Control: 4 implants (11.1%)
Roos-Jansaker et al., 2014 [49]	RF ≥ 25%, independent of PD or BOP; RF ≥ 25%, PD ≤ 5 mm, independent of BOP RF ≥ 25%, PD ≤ 5 mm, BOP ≤ 1	66.7% (30/45) implants 62.2% (28/45) implants 51.1% (23/45) implants
Renvert et al., 2018 [64]	DF ≥ 1.0 mm, PD ≤ 5 mm, no BOP, no SUP	Control: 1/20 (5.0%) Test: 9/21 (42.9%)