Abbreviation	Definition
Atg5	Autophagy related 5
APC	Autologous Platelet Concentrate
BC	Blood Clot
BMMSCs	Bone Marrow Mesenchymal Stem Cells
BMP	Bone Morphogenetic Protein
BP plus	Root canal sealer (product)
BSA	Bovine Serum Albumin
CD31	Cluster of Differentiation 31
Col1	Collagen type I
CGF	Concentrated Growth Factor
DMP1	Dentin Matrix Protein 1
DP	Dental Pulp
ECM	Extracellular Matrix
(M)DPSCs	(Mobilized) Dental Pulp Stem Cells
DSP	Dentin Sialoprotein
DSPP	Dentin Sialophosphoprotein
EDTA	Ethylenediaminetetraacetic Acid
ELISA	Enzyme-linked Immunosorbent Assay
EtOH	Ethanol
(b)FGF2	(basic) Fibroblast Growth Factors 2
G-CSF	Granulocyte Colony-Stimulating Factor
GF	Growth Factors
GFP	Green Fluorescent Protein
GIC	Glass Ionomer Cement
HE	Hematoxylin & Eosin
HG-MS	Heparin-conjugated gelatin nanospheres immobilized in poly-L-lactide microspheres
HUVEC	Human Umbilical Vein Endothelial Cell
HG	Hydrogel
HSP-25	Human Shock Protein-25
IF	Immunofluorescence
IGF	Insulin-like Growth Factor
IHC	Immunohistochemistry
IRM	Intermediate Restorative Material (product)
LC3	Microtubule-associated protein 1A/1B-Light Chain 3
MDP	Multi-Domain Peptide
MSC	Mesenchymal Stem Cell
MT	Masson’s Trichrome
MTA	Mineral Trioxide Aggregate
N.C.	Negative Control
NaOCl	Sodium hypochlorite
NGF	Nerve Growth Factor
PBMT	Photobiomodulation Therapy
PBS	Phosphate Buffer Saline
PCNA	Proliferating Cell Nuclear Antigen
PDGF	Platelet-Derived Growth Factor
PDL	Periodontal Ligament
PECAM	Platelet Endothelial Cells Adhesion Molecule
PLLA	Poly-L-Lactide
PICO	Population, Intervention, Comparison, Outcome
P.C.	Positive Control
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PRP	Protein-Rich Plasma
(q)PCR	(quantitative) Polymerase Chain Reaction
rCT	Regenerated Connective Tissue
REP	Regenerative Endodontic Procedures
rMT	Regenerated Mineralized Tissue
SAP	Self-Assembling Peptide
SCAP	Stem Cells from the Apical Papilla
SCF	Stem Cell Factor
SCID	Severe Combined Immunodeficient
SDF-1a	Stromal cell-Derived Factor 1a
SHED	Stem Cells from Human Exfoliated Deciduous Teeth
SLan	Self-Assembling Angiogenic Peptides
SLed	Self-Assembling Dentinogenic Peptides
SYRCLE	Systematic Review Centre for Laboratory Animal Experimentation
TAP	Triple Antibiotic Paste
TE	Tissue Engineering
TEM	Transmission Electron Microscope
TGF-b1	Transforming Growth Factor b1
TRH-DE	Thyrotropin-Releasing Hormone-Degrading Ectoenzyme
VEGF	Vascular Endothelial Growth Factor
vWF	von Willebrand Factor
(rh)Wnt3a	(Recombinant Human) Wingless Int-1 signaling protein 3a