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Am J Orthod Dentofacial Orthop. 2014 Apr;145(4):461-8. doi: 10.1016/j.ajodo.2013.12.018.

Dental arch dimensional changes after adenotonsillectomy in prepubertal children.

Author information

1
Private practice, Belo Horizonte, Minas Gerais, Brazil. Electronic address: annapetraccone@yahoo.com.br.
2
Associate professor, Graduate Program in Orthodontics, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
3
Private practice, Belo Horizonte, Minas Gerais, Brazil.
4
Medical doctor, Outpatient Clinic for Mouth Breathers, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

Abstract

INTRODUCTION:

The purposes of this study were to investigate the dental arch changes after adenotonsillectomies in prepubertal children and to compare the dental arch dimensions of mouth-breathing and nasal-breathing children.

METHODS:

The sample included 49 prepubertal severely obstructed mouth-breathing children and 46 prepubertal nasal-breathing children. Twenty-four of the 49 mouth-breathing children had an adenotonsillectomy and composed the adenotonsillectomy subgroup. The 25 children in whom the mouth-breathing pattern was unchanged during the 1-year study period composed the control subgroup.

RESULTS:

The mouth-breathing children showed a deeper palatal vault, a larger mandibular width, and a larger mandibular arch length in comparison with the nasal-breathing children. After airway clearance, the adenotonsillectomy group showed a significant maxillary transverse width gain compared with the control subgroup. The control subgroup showed a significant deepening of the palatal height when compared with the adenotonsillectomy subgroup after 1 year.

CONCLUSIONS:

The adenotonsillectomy subgroup had a significantly different pattern of arch development compared with the untreated controls. After adenotonsillectomy, the mouth-breathing children showed greater maxillary transverse development than did the controls. The palatal vault deepened in the untreated children. The mouth-breathing children showed a deeper palatal vault, a larger mandibular width, and a larger mandibular arch length in comparison with the nasal-breathing children.

Comment in

PMID:
24703284
DOI:
10.1016/j.ajodo.2013.12.018
[Indexed for MEDLINE]
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