Evaluation of application of fix and removable habit breakers among a group of preschool children with thumb sucking habit in Kerman, Iran

Document Type: Original Article(s)


1 Student of Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran

2 Assistant Professor, Oral and Dental Diseases Research Center AND Kerman Social Determinants on Oral Health Research Center AND Department of Pediatric Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran

3 Dentist, Private Practice, Kerman, Iran

4 Associate Professor, HIV/STI Surveillance Research Center, and WHO Collaboration Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sceiences, Kerman, Iran

5 Professor, Oral and ‎Dental Diseases Research Center AND Kerman Social Determinants on Oral Health Research ‎‎Center AND Department of Oral Medicine, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran

6 Librarian, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran


BACKGROUND AND AIM: Thumb sucking has been reported as one of the etiologic factors for malocclusion. The aim of this study was to determine the prevalence of thumb sucking and use of different kinds of habit breaker (HB) appliances in children attending private kindergartens in Kerman, Iran.METHODS: The census method was used in the present cross-sectional study, and the study population consisted of all the children attending private kindergartens. A checklist was completed for each subject, and clinical examinations were done. Fisher’s exact test was used to evaluate the relationship between thumb sucking and the variables under study. Stata 13 was used for the analysis of data.RESULTS: Of 503 4 to 6-year-old children, 14 (2.8%) had thumb sucking habits at the time of the study. Among these 14 children, only 6 children used HBs fixed (4 persons) or removable (2 persons).CONCLUSION: The prevalence of finger sucking, its side effects, as well as using the HBs of this habit in children of Kerman kindergartens were not high. Furthermore, it has same rate like other cities. In this situation, it’s necessary for the personnel of kindergartens to notify their parents about the hygiene of the problems.


  1. Casamassimo PS, Fields HW, McTigue DJ, Nowak A. Pediatric dentistry: Infancy through adolescence. 5th ed. Philadelphia, PA: Elsevier/Saunders; 2013. p. 385-9.
  2. Bahreman A. Early-age orthodontic treatment. New York, NY: Quintessence; 2013. p. 133-6.
  3. Fukumoto E, Fukumoto S, Kawasaki K, Furugen R, Kitamura M, Kawashita Y, et al. Cessation age of breast-feeding and pacifier use is associated with persistent finger-sucking. J Pediatr Dent 2013; 35(7): 506-9.
  4. Poureslami HR, Abolbashari MR, Shamsadin H, Sharifi H, Poureslami P. The prevalence of finger sucking habit among preschool children in Kerman, Iran. J Oral Health Oral Epidemiol 2013; 2(1): 15-22.
  5. Ize-Iyamu IN, Isiekwe MC. Prevalence and factors associated with anterior open bite in 2 to 5 year old children in Benin city, Nigeria. Afr Health Sci 2012; 12(4): 446-51.
  6. Jahanbin A, Mokhber N, Jabbarimani A. Association between sociodemographic factors and nutritive and non-nutritive sucking habits among Iranian girls. East Mediterr Health J 2010; 16(11): 1143-7.
  7. Vasconcelos FM, Massoni AC, Heimer MV, Ferreira AM, Katz CR, Rosenblatt A. Non-nutritive sucking habits, anterior open bite and associated factors in Brazilian children aged 30-59 months. Braz Dent J 2011; 22(2): 140-5.
  8. Romero CC, Scavone-Junior H, Garib DG, Cotrim-Ferreira FA, Ferreira RI. Breastfeeding and non-nutritive sucking patterns related to the prevalence of anterior open bite in primary dentition. J Appl Oral Sci 2011; 19(2): 161-8.
  9. de Albuquerque SS, Duarte RC, Cavalcanti AL, Beltrao EM. The influence of feeding methods in the development of nonnutritive sucking habits in childhood. Cien Saude Colet 2010; 15(2): 371-8.
  10. Noori S, Kooh Paiehzadeh J, Mozafari Kermani R, Nateghi M. Relationships of oral habits, oral status and lisping among children in day-care centers of Tehran, Iran. Audiology 2012; 21(4): 68-75. [In Persian].
  11. Ghasempour M, Nasrolahi S. Prevalence of finger sucking habit among children and its effect on dento-alveolar disorders. J Babol Univ Med Sci 2003; 5(2): 33-7. [In Persian].