Abbreviation	Definition
CF-PDI	Craniofacial pain and disability inventory
CIs	Confidence intervals
DC/TMD	The Diagnostic Criteria for Temporomandibular Disorders
FPHI	Fonseca Patient History Index
GRADE	Grading of Recommendations Assessment
JFLS	Jaw Functional Limitation Scale
MCID	Minimal clinical important difference
MDC	Minimal Detectable Change
MDs	Mean differences
MFIQ	Mandibular Function Impairment Questionnaire
MFIQ	Migraine Functional Impact Questionnaire
MMO	Maximum mouth opening
NRS	Numerical Rating Scale
PRISMA	Prospective Reporting Items for Systematic Review and Meta-Analyses
PROSPERO	Prospective Registry of Systematic Reviews
RCTs	Randomised controlled trials
SDs	Standard deviations
SMDs	Standardized mean differences
TMD	Temporomandibular disorders
VAS	Visual Analog Scale