On the Relationship between Condylar Cortication and Mandibular Growth Activity

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On the Relationship between Condylar Cortication and Mandibular Growth Activity

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Sharp, John

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2021-07

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Thesis or Dissertation

Abstract

Introduction: Mandibular growth prediction is central to orthodontics, yet little is known of the condylar bone density that accompanies this growth. Aims: To determine the bilateral symmetry of condylar cortical (CC), condylar trabecular (CT) and otic capsule (OC) grey values (GVs). To determine the relationship between condylar and OC GVs with age. To determine the relationship between three-dimensional mandibular growth and age. To determine the relationship between condylar cortication and mandibular growth activity. Methods: Mandibular growth rate was measured on CBCTs of orthodontically treated adolescents and young adults. OC, CC, and CT GVs were collected, and a bone density ratio calculated. Results: Significant differences exist in bilateral CC and OC GVs. CC, CT, and OC GVs significantly vary with age. Intercondylar width and mandibular growth rate significantly vary with age. Condylar cortication significantly predicts mandibular growth rate. Conclusions: A novel method to assess mandibular growth activity is introduced.

Keywords

Bone Density

CBCT

Condylar Cortication

Mandibular Growth

Orthodontics

Otic capsule

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University of Minnesota M.S. thesis. July 2021. Major: Dentistry. Advisor: Brent Larson. 1 computer file (PDF); ix, 89 pages.

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Sharp, John. (2021). On the Relationship between Condylar Cortication and Mandibular Growth Activity. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/224500.

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