From: Is the presence of keratinized mucosa associated with periimplant tissue health? A clinical cross-sectional analysis
Region
Number of implants
NKM
KM
n (%)
Posterior region maxilla
373
134 (13.9)
239 (24.7)
Anterior region maxilla
176
54 (5.6)
122 (12.6)
Posterior region mandible
275
127 (13.1)
148 (15)
Anterior region mandible
143
43 (4.5)
100 (10.3)