Evidence indicates minimal short-term space loss after premature loss of primary first molars Critical Summary Prepared by: Jacob DaBell DDS; Greg Huang DMD, MSD, MPH 

A Critical Summary of:

Dental arch space changes following premature loss of primary first molars: a systematic review

Tunison W, Flores-Mir C, ElBadrawy H, Nassar U, El-Bialy T. Pediatric Dentistry. 2008;30(4):297-302

Published Date: 3/22/2010

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


  • Systematic Review Conclusion:

    The reported magnitude of space loss after premature loss of primary first molars—1.5 millimeters per arch side in the mandible and 1.0 mm per arch side in the maxilla—is not likely to be of clinical significance in most cases.

  • Critical Summary Assessment:

    The reviewers’ conclusion was made on the basis of the results of only three studies, which included a total of 70 patients who were followed by investigators for up to eight months.

  • Evidence Quality Rating:


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