Comparison Between Treacher Collins Syndrome and Pierre Robin Sequence: A Cephalometric Study. (January 2021)

• Record Type: Journal Article
• Authors: Kato, Renata Mayumi; Moura, Priscila Padilha; Zechi-Ceide, Roseli Maria; Tonello, Cristiano; Peixoto, Adriano Porto; Garib, Daniela
• Is Part Of: Cleft palate-craniofacial journal. Volume 58:Number 1(2021)
• Page Start: 78
• Page End: 83
• Publication Date: 2021-01
• Subjects: cephalometry -- Pierre Robin sequence -- craniofacial morphology -- mandibulofacial dysostosis; Cleft palate -- Periodicals; Skull -- Abnormalities -- Periodicals; Cranial manipulation -- Periodicals; Skull -- Abnormalities -- Surgery -- Periodicals; Face -- Abnormalities -- Surgery -- Periodicals; Fente palatine -- Périodiques; Crâne -- Malformations -- Périodiques; Manipulation crânienne -- Périodiques; Crâne -- Malformations -- Chirurgie -- Périodiques; Face -- Malformations -- Chirurgie -- Périodiques; Cleft palate; Cranial manipulation; Face -- Abnormalities -- Surgery; Skull -- Abnormalities; Skull -- Abnormalities -- Surgery; Cleft Lip; Cleft Palate; Facial Bones -- abnormalities; Skull -- abnormalities; Periodicals; Periodicals; Periodicals; 617.522
• DOI: 10.1177/1055665620937499
• Languages: English
• ISSNs: 1055-6656

Abstract

Objective: The aim of this study was to compare the dentoskeletal pattern of Treacher Collins syndrome (TCS) and nonsyndromic Pierre Robin sequence (PRS). Design: Retrospective. Setting: Single center. Patients: Eighteen patients diagnosed with TCS (Group TCS) or PRS (Group PRS) in rehabilitation treatment at a single center. Group TCS was composed of 9 patients (4 male, 5 female) with a mean age of 12.9 years (standard deviation = 4.8). Group PRS was composed of 9 patients paired by age and sex with group TCS. Main Outcome Measure(s): Cone beam computed tomography–derived cephalometric images taken before the orthodontic or the orthodontic-surgical treatment were analyzed using Dolphin Imaging (Dolphin Imaging 11.0 & Management Solutions). Variables evaluating the cranial base, the maxillary and mandibular skeletal components, maxillomandibular relationship, the vertical components and the dentoalveolar region were measured. Intergroup comparisons were performed using t tests. The significance level considered was 5%. Results: Intergroup differences in the mandible size and growth pattern were observed. Group TCS showed a smaller mandibular length (Co-Go, Co-Gn) and a higher palatal plane (SN-Palatal Plane) and mandibular plane angles (SN-Go.Gn) compared to group PRS. No differences between TCS and PRS were observed for the sagittal position of the maxilla, maxillomandibular relationship, and dental components. Conclusions: Treacher Collins syndrome presented a decreased mandible and a more severe vertical growth pattern compared to PRS.