What question did this study set out to answer?

To investigate the changes in alveolar bone and root structure following premolar extraction in Class II malocclusion.

April 11, 2026Open Access

Comprehensive three-dimensional analysis of alveolar bone adaptation and root resorption following premolar extraction in Class II malocclusion: a cohort study

HSHasan M. SharhanThamar University HAHanan Al-fakehThamar University HSHuda M. SharhanThamar University

Key Points

To investigate the changes in alveolar bone and root structure following premolar extraction in Class II malocclusion.
Conducted a cohort study involving patients with Class II malocclusion.
Analyzed three-dimensional imaging of alveolar bone post-extraction.
Measured alveolar bone height, thickness, and root resorption.
Notable reduction in alveolar bone height and thickness in the anterior maxillary region.
Significant instances of root resorption observed post-extraction.
Changes in tooth volume were identified, correlating with bone adaptations.

Abstract

Premolar extraction in orthodontic treatment is associated with significant changes in alveolar bone height, thickness, root resorption, and tooth volume, particularly in the anterior maxillary region.

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