Histological Characteristics of Altered Human Lingual Frenulum

Authors

  • Roberta Lopes de Castro Martinelli Faculty of Odontology, University of Sao Paulo - Bauru, Brazil
  • Irene Queiroz Marchesan CEFAC – Health and Education, Brazil
  • Reinaldo Jordão Gusmão Department of ENT, Faculty of Medical Science - UNICAMP, Brazil
  • Antonio de Castro Rodrigues Department of Biological Sciences, Faculty of Odontology University of São Paulo- Bauru, Brazil
  • Giédre Berretin-Felix Department of Speech-Language Pathology, Faculty of Odontology University of São Paulo- Bauru, Brazil

DOI:

https://doi.org/10.12974/2311-8687.2014.02.01.2

Keywords:

Ankyloglossia, Histology, Lingual frenulum, Morphology, Muscle fibers.

Abstract

Aim: The aim of this study was to describe the histological characteristics of altered human lingual frenulum. 

Materials and Methods: Between March and July, 2011, 50 children between 6 months and 4 years of age were assessed by a Speech Language Pathologist in a Public Health Care Service in Brotas – Sao Paulo, Brazil. The lingual frenulum evaluation protocol proposed by Marchesan (2010, 2012) was administered to the 50 children – 26 male and 24 female. Of the 50, 8 children had lingual frenulum alterations. The 8 children with lingual frenulum alteration underwent lingual frenectomy. The materials for analyses were taken from 7-micrometer-thick tissues sections. Staining was employed using haematoxylin paired with eosin (H&E), Masson’s trichrome and picrosirius red. 

Results: The assessment of the lingual frenulum indicated that 8 children had lingual frenulum alteration. Surgery was performed and the material collected was submitted to analyses. The histological analyses demonstrated that the lingual frenulum of children with ankyloglossia or with short frenulum had bundles of striated skeletal muscle fibers, high frequency of type I collagen in the deep layers and compact bundles of elastic fibers positioned near the epithelial lining. Bundles of muscle fibers were not observed in anterior frenulum and short frenulum with anterior fixation. Type I collagen and bundles of elastic fibers sparse and far from the epithelial lining were observed in those types of frenulum. 

Conclusion: The analysis of the histological sections demonstrated the characteristics of altered human lingual frenulum. 

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Published

2014-02-05

How to Cite

de Castro Martinelli, R. L. ., Marchesan, I. Q., Gusmão, R. J., de Castro Rodrigues, A. ., & Berretin-Felix , G. . (2014). Histological Characteristics of Altered Human Lingual Frenulum. International Journal of Pediatrics and Child Health, 2(1), 5–9. https://doi.org/10.12974/2311-8687.2014.02.01.2

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