the results showed that ( 1 ) during active periodontal treatment the position of the gingival margin was shifted in an apical direction , ( 2 ) this displacement was to some extent compensated for by a coronal regrowth during the postoperative maintenance care period , ( 3 ) the alterations of the position of the gingival margin followed a similar pattern in areas with and without a zone of keratinized gingiva , ( 4 ) the number of gingival units devoid of keratinized gingiva decreased during the maintenance care period .
C1184544
gingival margin
C0017562
gingival