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Analysis of Arch Widths in Patients With Isolated Pierre Robin Sequence
A S C Ohashi1, T Varela1, I L Marques1
1Hospital of Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil.
Summary
Palate repair techniques do not affect arch width in isolated Robin sequence (IRS). Children with IRS exhibit narrower dental arches compared to controls, irrespective of cleft type or surgical method.
Area of Science:
- Craniofacial surgery
- Pediatric dentistry
- Orthodontics
Background:
- Isolated Robin sequence (IRS) often requires surgical intervention for palate repair.
- The choice of surgical technique may impact craniofacial development, including dental arch dimensions.
- Understanding the long-term effects of different palate repair methods is crucial for optimizing patient outcomes.
Purpose of the Study:
- To compare the maxillary and mandibular arch widths in patients with isolated Robin sequence (IRS) treated with modified von Langenbeck technique versus modified Furlow double-opposing z-plasty.
- To evaluate the influence of surgical technique on dental arch dimensions in IRS patients.
- To compare arch widths of operated IRS patients with a non-cleft control group.
Main Methods:
- A retrospective, transversal study was conducted.
- Three groups were analyzed: IRS patients operated with von Langenbeck (VL), IRS patients operated with Furlow (FL), and a control group of non-cleft patients.
- Digital 3D models were used to measure transversal maxillary and mandibular arch dimensions.
Main Results:
- No statistically significant difference in arch widths was found between the von Langenbeck and Furlow groups.
- Both surgical groups exhibited significantly decreased transversal dimensions in maxillary and mandibular arches compared to the control group.
- Arch width differences were not observed based on the complete or incomplete type of palatal cleft.
Conclusions:
- Palate repair techniques (von Langenbeck vs. Furlow) do not influence transversal arch widths in patients with isolated Robin sequence.
- Children with isolated Robin sequence, regardless of surgical technique or cleft extension, present with constricted maxillary and mandibular dental arches compared to non-cleft individuals.
