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Published on: June 12, 2020
The relationship of various arch forms and cortical bone thickness
T Ansari1, R Mascarenhas, A Husain
1Assistant Professor, Department of Orthodontics, Yenepoya Dental College, Yenepoya University, Mangalore, India.
Orthodontic implant stability depends on cortical bone thickness, which varies by arch form. Square arch forms offer greater bone thickness, potentially allowing for shorter implants compared to tapered forms.
Area of Science:
- Orthodontics
- Dental Implantology
- Oral Surgery
Background:
- Orthodontic implants are crucial for anchorage.
- Cortical bone thickness significantly impacts implant stability.
- Understanding arch form variations is key for optimal implant selection.
Purpose of the Study:
- To investigate the relationship between different arch forms and cortical bone thickness.
- To determine if cortical bone thickness varies across distinct arch forms.
- To inform ideal implant length selection based on arch morphology.
Main Methods:
- Cross-sectional tomographs from 30 patients were analyzed.
- Patients were categorized into three groups based on arch form: square, tapered, and ovoid (10 patients each).
- Buccal and lingual cortical plate thicknesses were measured for each group.
Main Results:
- A statistically significant difference in cortical bone thickness was observed among the three arch forms.
- The square arch form exhibited the greatest cortical bone thickness.
- Tapered and ovoid arch forms showed less cortical bone thickness compared to the square form.
Conclusions:
- Arch form is a significant determinant of cortical bone thickness.
- Patients with tapered arch forms may necessitate longer implants due to thinner cortical bone.
- Square arch forms provide greater cortical bone availability, potentially allowing for shorter, more stable implants.
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