Tay DKL, et al. – Author's purpose was to document the clinical phenotype of temporomandibular disorder (TMD) patients with concomitant upper airway resistance syndrome (UARS) in a South East Asian population. The TMD–UARS phenotype might have originally developed as an adaptive response to ‘awake’ disordered breathing during growth. They suggested that patients with persistent TMD and/or reporting sleep bruxism (SB) should be screened for UARS and chronic nasal obstruction, particularly when they also present with forward head posture (FHP). They also recommended that a lateral cephalogram is a valuable tool in the differentiation of UARS from other obstructive sleep apnea (OSA) phenotypes.