Insufficient evidence to determine an association between dental crowding and caries Critical Summary Prepared by: Anthony Jackson DDS 

A Critical Summary of:

Dental crowding as a caries risk factor: A systematic review

Hafez, Hend Salah, Shaarawy, Sherif Mohamed, Al-Sakiti, Ahmed Awadh, Mostafa, Yehya Ahmed. American Journal of Orthodontics & Dentofacial Orthopedics. 2012;142(4):443-50

Published Date: 1/10/2014

This summary is published in the Journal of the American Dental Association and can be accessed at :-


  • Systematic Review Conclusion:

    The possible association between dental crowding and caries remains unresolved owing to a lack of appropriately designed, higher-quality studies.

  • Critical Summary Assessment:

    The authors of this systematic review found limited cross-sectional evidence with respect to the relationship between crowding and caries. Randomized controlled trials or longitudinal studies that take into account more dental health parameters than those in the included studies—such as presence or development of malocclusions (included in indexes of orthodontic treatment need), age, sex, baseline oral health status and quality of home care—are required to answer the question of whether crowding and caries are associated.

  • Evidence Quality Rating:


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