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. 2026 Sep 23;15(19):7401. doi: 10.3390/jcm15197401
AI Artificial Intelligence
ML Machine Learning
DL Deep Learning
CNN Convolutional Neural Network
GR Gingival Recession
KG Keratinized Gingiva
KGW Keratinized Gingiva Width
rKGW Real (clinically measured) Keratinized Gingiva Width
GM Gingival Margin
CEJ Cementoenamel Junction
JBI Joanna Briggs Institute
ABC Alveolar Bone Crest
iGR Ultrasonographic Index of Gingival Recession
iGH Ultrasonographic Index of Gingival Height
iABL Ultrasonographic Index of Alveolar Bone Level
ABL Alveolar Bone Level
GT Gingival Thickness
ABT Alveolar Bone Thickness
PD Probing Depth
BOP Bleeding on Probing
PBI Papillary Bleeding Index
CAL Clinical Attachment Level
ICC Intraclass Correlation Coefficient
DSC Dice Similarity Coefficient
IoU Intersection over Union
TPR True Positive Rate
FPR False Positive Rate
NA Not Applicable
NR Not Reported
CAF Coronally Advanced Flap
CTG Connective Tissue Graft
PRF Platelet-Rich Fibrin
CAF+PRF Coronally Advanced Flap with Platelet-Rich Fibrin
GUG Gingival Unit Graft
XAI Explainable Artificial Intelligence