Evidence‐based recommendation (3.1)
In the presence of deep residual pockets (PPD ≥ 6 mm) in patients with Stage III periodontitis after the first and second steps of periodontal therapy, we suggest performing access flap surgery. In the presence of moderately deep residual pockets (4–5 mm), we suggest repeating subgingival instrumentation.
Supporting literature Sanz‐Sanchez et al. (2020)
Quality of evidence Thirteen RCTs (500 patients) with moderate‐to‐high risk of bias. Five studies were restricted to pockets associated with intrabony defects. Limited number of studies presented data for quantitative analyses. High consistency of results.
Grade of recommendation Grade B—↑
Strength of consensus Consensus (1.4% of the group abstained due to potential CoI)