CH	Cervical Headgear
MCPP	Modified C-palatal Plate
EGA	Eruption Guidance Appliance
RCT	Randomized Controlled Trial
OSA	Obstructive Sleep Apnea
EG	Early Group
LG	Late Group
FFA	Full Fixed Appliance
DPT	Dental Panoramic Tomograph
ANB	A point–Nasion–B point (cephalometric angle)
FMA	Frankfort–Mandibular Plane Angle
SN-GoGn	Sella–Nasion to Gonion–Gnathion angle
NSL-PL	Nasion–Sella Line to Palatal Line
rl1–rl2	Retroglottic airway linear measurement