Can antegonial notch angular measurements on lateral cephalometry be used to monitor children following TMJ ankylosis treatment?
ABSTRACT
Objective
This research aims to introduce using antegonial notch angular measurements on lateral cephalometry as a simple low-dose radiographic approach for monitoring mandibular growth in children after TMJA treatment.
Methods
This retrospective cohort study used dental records to identify eligible patients: healthy children with true unilateral TMJA who underwent conservative gap arthroplasty followed by post-operative physiotherapy. The primary outcome was changes in antegonial notch angular measurements over time. Secondary outcomes included correlations between antegonial notch angular measurements and two growth-related conventional cephalometric angles (SNB and ANB). We also explored the relationship between changes in antegonial notch angle over time and study covariates.
Results
Eleven patients aged 4 to 9.5 years with unilateral bony TMJA for periods ranging from 9 to 20 months who had undergone conservative gap arthroplasty followed by physiotherapy were included. Significant increases were observed in antegonial notch angles on both the affected and non-affected sides after treatment (p
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