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Related Experiment Videos

The relationship between digit sucking and behaviour problems: a longitudinal study over 10 years.

P A Mahalski1, W R Stanton

  • 1University of Otago, Dunedin, New Zealand.

Journal of Child Psychology and Psychiatry, and Allied Disciplines
|July 1, 1992
PubMed
Summary

Children who continue thumb sucking past age 7 risk behavior problems and dental issues like overjets. Stopping digit sucking before school is recommended for better child development and oral health.

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Area of Science:

  • Developmental Psychology
  • Pediatric Dentistry

Background:

  • Digit sucking is a common childhood habit with potential long-term consequences.
  • Understanding the persistence of digit sucking and its associations is crucial for early intervention.

Purpose of the Study:

  • To examine the continuity and discontinuity of digit sucking from ages 5 to 11.
  • To investigate the relationship between digit sucking and behavioral problems across childhood.
  • To assess the dental implications of persistent digit sucking.

Main Methods:

  • Utilized data from the Dunedin Multidisciplinary Health and Development Study.
  • Employed cross-sectional analyses to identify concurrent relationships.
  • Conducted longitudinal analyses using multiple regression to determine predictive associations.

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Main Results:

  • A significant association between digit sucking and behavior problems was observed at ages 7, 9, 11, and 15, but not at age 5.
  • Digit sucking at ages 5 and 7 predicted behavior problems at later ages (7, 9, 11), with the strongest effect at age 7.
  • Children exhibiting digit sucking at age 11 were more likely to develop significant overjets (≥6mm).

Conclusions:

  • Persistent digit sucking is linked to ongoing behavioral issues and significant dental malocclusions.
  • Early cessation of digit sucking, ideally before school entry, is advisable to mitigate behavioral and dental risks.
  • This study underscores the importance of addressing digit sucking habits for optimal child development and oral health outcomes.