Cephalometric Assessment in Nonsyndromic Microtia Patients: Cross‐Sectional Study with Comparison Group
Cléuber Roberto PEIXOTO, Bernardo OLSSON, Suyany Gabriely WEISS, Eduardo CALEME, Francielle TOPOLSKI, Rafaela SCARIOT, Alexandre MOROABSTRACT
Aims
To assess and compare the cephalometric characteristics of patients with nonsyndromic microtia.
Methods and Results
This cross‐sectional comparative study evaluated the cephalometric characteristics of 16 patients with nonsyndromic microtia and 48 patients without microtia (n = 48). A retrospective analysis was performed using lateral cephalograms, orthopantomograms, dental casts, facial photographs, and intraoral photographs. ANB ( p = 0.044), FMA ( p < 0.001), SN.GoGn ( p = 0.003), Y‐axis ( p = 0.024), LAFH ( p < 0.001), and 1‐NB ( p = 0.014) were higher in the microtia group, whereas 1.NA ( p = 0.018) and IMPA ( p = 0.029) were lower relative to controls. Twelve patients had deviation of the mandibular midline to the microtia side; one patient had left‐sided microtia and deviation of the midline to the right side, and three patients did not exhibit mandibular midline deviation.
Conclusion
Patients with microtia showed prevalence of a Class II skeletal and dolichocephalic pattern, predisposition to upper incisor movement in the vertical direction, and lower incisor protrusion. In addition, they showed a tendency toward deviation of the lower midline to the affected side.