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Original Research

Open Access

Tongue-tie: incidence and outcomes in breastfeeding after lingual frenotomy in 2333 newborns

  • Francisco Guinot1,*,
  • Natalia Carranza1
  • Elvira Ferrés-Amat1
  • Manuel Carranza2
  • Ana Veloso1

1Department of Pediatric Dentistry, Faculty of Dentistry, Universitat Internacional de Catalunya (UIC), Barcelona, Spain

2Hospital Nostra Senyora de Meritxell, Andorra

DOI: 10.22514/jocpd.2022.023 Vol.46,Issue 6,November 2022 pp.33-39

Published: 01 November 2022

*Corresponding Author(s): Francisco Guinot E-mail:


Aim: To determine the prevalence of ankyloglossia in newborns with breastfeeding problems and to assess the effectiveness of frenotomy in the maintenance of exclusive breastfeeding at 1 month, 3 months and 6 months in newborns at an Andorran Hospital. Study design: A descriptive, cross-sectional, population-based, retrospective study of newborns over a 5-year period (2016–2020) was performed. Nine medical history variables (presence or absence of ankyloglossia and type of frenulum, surgical intervention or not, first degree hereditary component, gender, Rh and blood group, type of breastfeeding, causes of cessation and duration of breastfeeding) related to perinatal and feeding history were collected confidentially and anonymously. The Coryllos classification was used for the diagnosis of ankyloglossia. Descriptive analysis of the data, Chi-square test and prevalence ratios were calculated. Results: A total of 2333 newborns were included in the study (50.02% males and 49.98% females). The prevalence of ankyloglossia was 7.84% (n = 183). Of the infants examined, 136 underwent lingual frenotomy. The number of infants who maintained exclusive breastfeeding, both surgically and non-surgically treated, was no statistically significant differences at 1 month (p = 0.65), 3 months (p = 0.61) and 6 months (p = 0.49). Conclusions: Lingual frenotomy was only performed on patients with ankyloglossia associated with ineffective suction that causes BF difficulties. The realization or not of frenotomy was not a determining factor for the maintenance of breastfeeding at 1 month, 3 months and 6 months. On the contrary, it was a determining factor for the prolongation of mixed feeding. Ankyloglossia related to breastfeeding difficulties should be treated by a multidisciplinary team.


Ankyloglossia; Newborns; Frenotomy; Breastfeeding

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Francisco Guinot,Natalia Carranza,Elvira Ferrés-Amat,Manuel Carranza,Ana Veloso. Tongue-tie: incidence and outcomes in breastfeeding after lingual frenotomy in 2333 newborns. Journal of Clinical Pediatric Dentistry. 2022. 46(6);33-39.


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