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J Clin Exp Dent. 2018 Dec 1;10(12):e1161-e1166. doi: 10.4317/jced.55284. eCollection 2018 Dec.

A sample of non-nutritive sucking habits (pacifier and digit) in portuguese children and its relation with the molar classes of angle.

Author information

1
Graduation. DDS, Doctoral student at the University of Barcelona. Advanced Institute of Health Sciences University (IUCS), Portugal.
2
MD, PhD. Professor Titular de Universidad, Faculty of Medicine and Sciences of Health. University of Barcelona.
3
MD, PhD. Associate Professor. Administrative positions: Director of the Dentistry School and the Director of Dentistry. Department of the IUCS (University Institute Health Sciences), Portugal.
4
President of the Pedagogical Council IUCS. Head of the Medical. Service and Oral Surgery. Department of Dental Sciences. Clinical Director of the Clinical Unit of CESPU (IUCS).
5
MD, PhD. Paediatric Dentistry, Advanced the University Institute of Health Sciences (IUCS). Portugal.
6
MD, PhD. Associate Professor. Vice Dean School of Dentistry. Oral Health and Masticatory System Group (Bellvitge Medical Research Institute) IDIBELL. L'Hospitalet (Barcelona) Spain.

Abstract

Background:

Little is known about the effect of non-nutritive sucking habits (pacifier and digital sucking) in the prevalence of molar Class in mixed dentition. The aim of this study was determinate the relation between non-nutritive sucking habits, and Angle´s molar Class, in the horizontal plane, and it´s relation with gender. A convenience sample of 326 children with ages between 6 and 12 years was selected from three schools of Oporto.

Material and Methods:

To collect the epidemiologic data, was used a method recommended by the WHO. An indirect questionnaire about the medical history, dental habits, was used. It was adapted from Sanchez-Molins and validated by Clinical Dental III of Integrated Dental University Institute Health Sciences, Gandra, Portugal.

Results:

In this study, 326 infants were examined in order to determine the prevalence of non-nutritive sucking habits. Only 45 observed children did not mentioned any kind of non-nutritive sucking habit; the remaining 281 children mentioned at least one potential bad habit. Children with non-nutritive sucking habits show a higher molar Class II percentage in females, while molar Class III is more frequent among males compared with children with no sucking habits.

Conclusions:

Children with non-nutritive sucking habits, presented a higher-Class II prevalence with statistically significance. It was detected a direct relationship between Angle´s molar Class and gender. Key words:Finger sucking, pacifier sucking, Angle Class malocclusion.

Conflict of interest statement

Conflict of interest statement: The author declare that there are no conflicts of interest.

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