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, 10 (12), e1161-e1166

A Sample of Non-Nutritive Sucking Habits (Pacifier and Digit) in Portuguese Children and Its Relation With the Molar Classes of Angle


A Sample of Non-Nutritive Sucking Habits (Pacifier and Digit) in Portuguese Children and Its Relation With the Molar Classes of Angle

Sónia-Cristina-Silva Machado et al. J Clin Exp Dent.


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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    1. Quashie-Williams R, da Costa OO, Isiekwe MC. Oral habits, prevalence and effects on occlusion of 4–15 year old school children in Lagos, Nigeria. Niger Postgrad Med J. 2010;17:113–7. - PubMed
    1. Bardolet-Fernandéz L, Sánchez-Mollins M, Sentis-Vilalta J, Ustrell-Torrent JM. Hábito de succión no nutritiva y su relación con la maloclusión. REDOE. 2006. [ cited 15 May 2006 ]. [Internet] Available from: http:// .
    1. Tabarelli Z, Ferreira FV. Hábitos orais nocivos à oclusão dentária. Rev Dent Online. 2005. [ cited 5 Jul 2005 ]. [Internet] Available from: .
    1. Kutesa A, Nkamba EM, Muwazi L, Buwembo W, Rwenyonyi CM. Weight, height and eruption times of permanent teeth of Children aged 4-15 years in Kampala, Uganda. BCM Oral Health. 2013;13:15. - PMC - PubMed
    1. Jyoti S, Pavanalakshmi GP. Nutritive and Non-Nutritive Sucking Habits – Effect on the Developing Oro-facial Complex. Dentistry. 2014;4:3.

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