Evaluation of palatal volume in children with cleft lip and palate: a comparison of two surgical protocols

Authors

  • Eloá Cristina Passucci Ambrosio Department of Pediatric Dentistry, Orthodontics and Public Health - Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0003-2322-3832
  • Amanda Ribeiro Homem Alcarde Department of Pediatric Dentistry, Hospital for Rehabilitation of Craniofacial Anomalies - University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0003-2322-3832
  • Paula Karine Jorge Department of Pediatric Dentistry, Orthodontics and Public Health - Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0002-9221-8052
  • Cleide Felício Carvalho Carrara Department of Pediatric Dentistry, Hospital for Rehabilitation of Craniofacial Anomalies - University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0002-3219-5936
  • Fabrício Pinelli Valarelli Department of Orthodontics - University Ingá, Maringá, PR, Brazil. http://orcid.org/0000-0002-4285-486X
  • Simone Soares Department of Pediatric Dentistry, Hospital for Rehabilitation of Craniofacial Anomalies - University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0003-0811-7302
  • Maria Aparecida Andrade Moreira Machado Department of Pediatric Dentistry, Orthodontics and Public Health - Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0003-3778-7444
  • Thais Marchini Oliveira Department of Pediatric Dentistry, Orthodontics and Public Health - Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. https://orcid.org/0000-0003-3460-3144

DOI:

https://doi.org/10.4322/bds.2022.e3299

Abstract

Objective: Compare the palatal volume in children with unilateral cleft lip and palate before and after two surgical
protocols. Material and Methods: Retrospective data collection was performed in a specialized hospital. The
sample comprised 120 digitized dental models divided into, Group 1 (G1) – participants submitted to cheiloplasty
at 3 months (Millard technique) and one-step palatoplasty at 12 months (von Langenbeck technique); Group 2
(G2) – participants submitted to cheiloplasty (Millard technique) and hard palate closure (Hans Pichler technique)
at 3 months and soft palate closure at 12 months (Sommerlad technique). The dental models were evaluated
at Time 1 (T1): before primary plastic surgeries, Time 2 (T2): 1st post-surgical phase, and Time 3 (T3): 2nd
post-surgical phase. The volume was measured through stereophotogrammetry system software. Parametric and
non-parametric statistical tests were applied (alpha = 5%). Results: The intragroup analysis revealed that G1 had a
statistically significant increase in volume at T2 followed by a reduction at T3 (p=0.003); G2 showed a statistically
significant increase of dental arch volume between T1 and T2 (p=0.001). There was no statistically significant
difference in the intergroup and gender analyses (p>0.05). Conclusion: The surgical protocol influenced the
palatal volume of children with unilateral cleft lip and palate. This study suggested that two-step palatoplasty
protocol has a tendency to be more appropriate.
KEYWORDS
Cleft lip; Cleft palate; Dental arch; Imaging; Three-dimensional.

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Published

2022-08-22

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Section

Clinical or Laboratorial Research Manuscript