Page 21 - Portuguese Journal - SPORL - Vol 61. Nº1

of children with adenotonsillar hypertrophy Conclusion
and 0% in the control group. It can be concluded that there was a significant
10
Gregório et al. (2008) conducted a polygraphic reduction in bruxism after surgery because 17
sleep study on 38 children diagnosed with (77%) of the 23 children who had bruxism no
OSAS and found the presence of bruxism in longer exhibited it after tonsil and adenoid
34.3% of them. 11 removal.
In another study by Grechi et al. (2008), 60 The knowledge of this association can enable
children with nasal congestion, aged between pediatricians and dentists to refer children to
two and 23 years were evaluated, and the the specialty of otorhinolaryngology (ORL) for
results showed that 65.2% had bruxism. 12 the investigation of OSRBD in cases of bruxism
Similarly, Ferreira et al. (2014) reported that in and also encourage otorhinolaryngologists to
a sample of children with bruxism, 11.03% also investigate complaints of bruxism in children
had OSAS. 13 with OSRBD.
Thus, there are several published studies In conclusion, a combination of ORL and
in which a positive association between orthodontics consultations is important for
OSRBD and sleep bruxism was observed and optimal evaluation and therapeutic decision-
the prevalence of bruxism in children with making in cases of bruxism in the pediatric
adenotonsillar hypertrophy varied between population.
26% and 56% (41% in our study) (Table 2).
Although the intention is not to propose Conflicts of Interest
adenotonsillectomy solely to improve bruxism The authors declare that there is no conflict
complaints, it is important to know the effect of interests regarding the publication of this
of the surgery not only on OSRBD but also on paper.
bruxism. In fact, according to the studies that
compared the prevalence of bruxism before Data Confidentiality
and after the surgical procedure, bruxism The authors declare having followed the
improved in 72% to 77% of children who protocols in use at their working center
had complaints before the surgery . In the regarding patients’ data publication.
4,5
present study, bruxism improved in 77% of the
children. Protection of humans and animals
Therefore, the present study confirms and The authors declare that the procedures
highlights the association between OSRBD were followed according to the regulations
and bruxism and our findings can be taken established by the Clinical Research and Ethics
into consideration in the decision to treat Committee and to the 2013 Helsinki Declaration
these children with surgery. of the World Medical Association.

Table 2
Prevalence of bruxism according to several studies
% Bruxism in children with % Bruxism after
N Author Year
adenotonsillar hypertrophy /OSAS adenotonsillectomy
1 Valera et al. 10 2003 43,2% -
2 DiFrancesco et al. 5 2004 45,6% 11,8 %
3 Ali Efterkharian et al. 4 2007 25,7% 7,1 %
4 Gregório et al. 11 2008 34,3% -
5 Oh et al. 8 2020 56% -
6 F. Morgado et al. 2022 40,7% 9,3%
Abbreviation: OSAS, obstructive sleep apnea syndrome

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