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Updated: Jul 13, 2026

Method of Studying Palatal Fusion using Static Organ Culture
Published on: September 19, 2015
Clinical effectiveness of late maxillary protraction in cleft lip and palate: A methods paper
M K Lee1,2, C Lane3, F Azeredo4
1Division of Dentistry, Children's Hospital Los Angeles, Los Angeles, CA, USA.
Objectives:
A prospective parallel cohort trial was conducted to compare outcomes of patients treated with maxillary protraction vs LeFort 1 maxillary advancement surgery.
Setting And Sample Population:
The primary site for the clinical trial is Children's Hospital Los Angeles; the satellite test site is Seattle Children's Hospital. All patients have isolated cleft lip and palate and a skeletal Class III malocclusion.
Material And Methods:
A total of 50 patients, ages 11-14, will be recruited for the maxillary protraction cohort. The maxillary surgery cohort consists of 50 patients, ages 16-21, who will undergo LeFort 1 maxillary advancement surgery. Patients with additional medical or cognitive handicaps were excluded from the study.
Results:
Current recruitment of patients is on track to complete the study within the proposed recruitment period.
Conclusion:
This observational trial is collecting information that will examine dental, skeletal, financial and quality-of-life issues from both research cohorts.

