Figure 5

Correlation of not cleaned planimetrical fields (range of 0–9 fields) in clinical versus robot tests. Cleaning patterns tooth by tooth 32 to 47, toothbrush A (Plus) versus toothbrush B (Interdent). Robot cleaning efficacy is slightly higher compared to the cleaning efficacy of the subjects (except for tooth 46 and 47 orally), mean values of number of oral (left) and buccal fields (right) with residual plaque. Number of observations: n = 27 clinical study; n = 14 robot study. Spearman rank correlation coefficients: Oral: B(hor) vs. B(rot): r = 0.62 (0.05 < p < 0.10). B(hor) vs. A(hor): r = 0.68 (0.01 < p < 0.05). B(hor) vs. A(rot): r = 0.80 (p < 0.01). B(rot) vs. A(hor): r = 0.73 (0.01 < p < 0.05). B(rot) vs. A(rot): r = 0.87 (p < 0.01). A(hor) vs. A(rot): r = 0.83 (p < 0.01). Buccal: B(hor) vs. B(rot): r = 0.80 (p < 0.01). B(hor) vs. A(hor): r = 0.48 (p > 0.10). B(hor) vs. A(rot): r = 0.73 (0.01 < p < 0.05). B(rot) vs. A(hor): r = 0.45 (p > 0.10). B(rot) vs. A(rot): r = 0.77 (p < 0.01). A(hor) vs. A(rot): r = 0.60 (0.05 < p < 0.10).