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Percentages of each papilla index at the different timepoints at (A,B) mesial and (C,D) distal sites of (A,C) conical and (B,D) hexagonal-connection implants; 0 = no papilla; 1 ≤ 50% filling of the interproximal area; 2 ≥ 50% filling; 3 = ideal papilla; 4 = overgrowth.
