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Status unknownNCT02943200Updated Nov 1, 2016

The Prevalence of Malocclusion Development in a Group of Egyptian Children With Digit Sucking Aged 3 to 6 Years

An observational study in Children With Digit Sucking, sponsored by Cairo University. Status unknown. Open to participants aged 3 Years to 6 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-11-01.

Sponsored by Cairo University · Observational

The sponsor has not verified this record recently (last verified Oct 2016), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Time perspective
Cross-sectional
Enrollment
185
Ages
3 Years to 6 Years
Sex
All
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Study summary

The purpose of the study is to determine the prevalence of malocclusion among a group of Egyptian children with digit sucking aged 3 to 6 years.

Read the detailed description

The purpose of the study is to determine the prevalence of malocclusion among a group of Egyptian children with digit sucking aged 3 to 6 years.

PICO:

Population: Egyptian Children with digit sucking aged 3 to 6 years. Outcome: Development of malocclusion.

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Conditions studied

  • Children With Digit Sucking

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03

In context

Malocclusion

457 studies on the registry are indexed under Malocclusion; 89 are open to participants now.

This study's planned enrollment of 185 is above the median of 61 across 78 observational studies indexed under Malocclusion.

Browse Malocclusion studies →

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
3 Years to 6 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

population is limited to Egyptian children who are aged from 3 to 6 years and are thumb suckers. both genders are included

Inclusion criteria

  • Children between ages 3 to 6 years.
  • Children those are medically free.
  • Both genders are included.
  • Egyptian children

Exclusion criteria

Exclusion Criteria:

  • History of an obvious alternative cause for malocclusion (e.g. trauma, syndromes).
  • Participants exposed to thumb sucking prevention programs.
  • Participants who underwent orthodontic treatment for his/her malocclusion.
  • Participants' caregivers refuse to give consent.
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Study design

Time perspective
Cross-sectional
Enrollment
185 participants (estimated)
Patient registry
No
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What researchers measure

Primary outcomes

  1. Anterior open bite

    Measured using a divider and the measurement is transferred onto a ruler. measuring unit is mm.

    Time frame: 6 months

  2. Over bite.

    measured using a periodontal probe and the measurement is transferred onto a ruler. measuring unit mm.

    Time frame: 6 months

  3. Over jet.

    measured using a periodontal probe and the measurement is transferred onto a ruler. measuring unit mm.

    Time frame: 6 months

  4. Anterior and posterior cross bite.

    Observed visually.Binary units: (yes/no)

    Time frame: 6 months

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Burford D, Noar JH. The causes, diagnosis and treatment of anterior open bite. Dent Update. 2003 Jun;30(5):235-41. doi: 10.12968/denu.2003.30.5.235. PubMed 12861760 ↗
  • Greenleaf S, Mink J. A retrospective study of the use of the Bluegrass appliance in the cessation of thumb habits. Pediatr Dent. 2003 Nov-Dec;25(6):587-90. PubMed 14733476 ↗
  • Kamdar RJ, Al-Shahrani I. Damaging oral habits. J Int Oral Health. 2015 Apr;7(4):85-7. PubMed 25954079 ↗
  • Larsson E. Sucking, chewing, and feeding habits and the development of crossbite: a longitudinal study of girls from birth to 3 years of age. Angle Orthod. 2001 Apr;71(2):116-9. doi: 10.1043/0003-3219(2001)0712.0.CO;2. PubMed 11302587 ↗
  • Moimaz SA, Garbin AJ, Lima AM, Lolli LF, Saliba O, Garbin CA. Longitudinal study of habits leading to malocclusion development in childhood. BMC Oral Health. 2014 Aug 4;14:96. doi: 10.1186/1472-6831-14-96. PubMed 25091288 ↗
  • Urzal V, Braga AC, Ferreira AP. Oral habits as risk factors for anterior open bite in the deciduous and mixed dentition - cross-sectional study. Eur J Paediatr Dent. 2013 Dec;14(4):299-302. PubMed 24313582 ↗
  • Warren JJ, Bishara SE. Duration of nutritive and nonnutritive sucking behaviors and their effects on the dental arches in the primary dentition. Am J Orthod Dentofacial Orthop. 2002 Apr;121(4):347-56. doi: 10.1067/mod.2002.121445. PubMed 11997758 ↗
  • Warren JJ, Levy SM, Nowak AJ, Tang S. Non-nutritive sucking behaviors in preschool children: a longitudinal study. Pediatr Dent. 2000 May-Jun;22(3):187-91. PubMed 10846728 ↗
  • Fisher, J.E.: Evidence-Based Psychotherapy. Springer, Reno, NV, 2006
  • 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 Dec;12(4):446-51. doi: 10.4314/ahs.v12i4.8. PubMed 23513076 ↗
  • Jajoo S et al. (2015). Oral Habits in School Going Children of Pune: A Prevalence Study. Journal of International Oral Health; 7(10):1-6.
  • Jyoti S, Pavanalakshmi GP. Nutritive and Non-Nutritive Sucking Habits - Effect on the Developing Oro-Facial Complex; A Review. Dentistry 2014; 4(3)1-4.
  • Katz CR, Rosenblatt A, Gondim PP. Nonnutritive sucking habits in Brazilian children: effects on deciduous dentition and relationship with facial morphology. Am J Orthod Dentofacial Orthop. 2004 Jul;126(1):53-7. doi: 10.1016/j.ajodo.2003.06.011. PubMed 15224059 ↗
  • Marwah N. Oral Habits. In: Text book of Pediatric Dentistry. 2nd ed. Jaypee Brothers Medical publishers; 2009. p. 281-298.
  • W.H. Littlefield, B.D.S. (Durham), H.D.D. (Edinburgh). Thumb-sucking and its relationship to malocclusion in children. American Journal of Orthodontics, Volume 38, Issue 4, 293 - 300. 1952

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 1, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02943200
Lead sponsor
Cairo University
Responsible party
Heba Ashraf (principal investigator, Cairo University) — Principal investigator
First posted
Oct 24, 2016
Start date
Oct 2016
Primary completion
Jun 2017 (estimated)
Completion
Jul 2017 (estimated)
Last update
Nov 1, 2016

Study contacts

Heba Ashraf, bachelor
Contact
heba_ashraf@dentistry.cu.edu.eg
01123777705
Randa Youssef, lecturer
Contact
Mahmoud Hamdy, professor
study director · Cairo University
Salah Behery, professor
study director · Cairo University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.

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