5. Full‐mouth disinfection versus control: change in clinical attachment level.
| Tooth type: single‐ or multi‐rooted, or both | Baseline pocket depth (mm) | Time (months) | Number of studies (participants) | Mean difference (95% CI) (random‐effects meta‐analysis) | Heterogeneity |
| Both | 5–6 | 3/4 | 1 (28) | 0.18 (–0.21, 0.57); P = 0.37 | Not applicable |
| Both | > 6 | 3/4 | 2 (44) | –0.39 (–1.32, 0.54); P = 0.42 | (P = 0.06); I² = 71% |
| Both | 5–6 | 6/8 | 0 (0) | Not estimable | Not applicable |
| Both | > 6 | 6/8 | 1 (16) | –0.16 (–0.41, 0.09); P = 0.20 | Not applicable |
| Single‐rooted | 5–6 | 3/4 | 2 (40) | 0.08 (–0.87, 1.04); P = 0.86 | (P = 0.04); I² = 75% |
| Single‐rooted | > 6 | 3/4 | 1 (24) | 1.90 (0.73, 3.07); P = 0.001 | Not applicable |
| Single‐rooted | 5–6 | 6/8 | 3 (64) | 0.14 (0.00, 0.28); P = 0.05 | (P = 0.48); I² = 0% |
| Single‐rooted | > 6 | 6/8 | 2 (48) | 0.72 (–0.94, 2.37); P = 0.40 | (P = 0.03); I² = 79% |
| Multi‐rooted | 5–6 | 3/4 | 2 (40) | 0.27 (–1.21, 1.75); P = 0.72 | (P = 0.001); I² = 90% |
| Multi‐rooted | > 6 | 3/4 | 1 (24) | 1.30 (0.20, 2.40); P = 0.02 | Not applicable |
| Multi‐rooted | 5–6 | 6/8 | 3 (64) | 0.12 (–0.17, 0.41); P = 0.43 | (P = 0.07); I² = 62% |
| Multi‐rooted | > 6 | 6/8 | 2 (48) | 0.52 (–1.30, 2.34); P = 0.57 | (P = 0.005); I² = 87% |
CI: confidence interval.