Early onset disruption of the Temperomandibular Joint (TMJ) reminds me of what we once called Congenital Dislocation of the Hip (CDH). That syndrome has since been better named as Developmental Dysplasia of the Hip. Untreated DDH is thought to result in severe early arthritis of the hip.
I wonder if early-onset (pediatric) TMJ syndrome should be renamed Developmental Dysplasia of the Temperomandibular Joint (DDTMJ).
I don’t see any hint of this in my PubMed searches though.