Planning and Placing Temporary Anchorage Devices with the Aid of Cone Beam Computed Tomography Imaging

Baumgaertel, Sebastian

doi:10.1002/9781118674888.ch18

Cited by 2 publications

(3 citation statements)

References 40 publications

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“…The results obtained suggest that the favorable site of buccal shelf implant placement is distal to the second molar which correlates with the study of Baumgaertel. 12 Similar study carried out by Liu et al at Guangzhou Medical University concluded that the ideal site for buccal shelf implant placement is between distobuccal of first molar and mesiobuccal of the second molar. The growth pattern of an individual was not considered in this study.…”

Section: Discussionmentioning

confidence: 73%

Comparative Evaluation of Cortical Bone Anatomy of Mandibular Buccal Shelf for Mini Implant Placement in Different Facial Divergence: A Cone Beam Computed Tomography Study

Trivedi¹,

Jani²,

Hirani³

et al. 2020

J Indian Orthod Soc

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Aim: The purpose of this study was to use measurements from cone beam computed tomography scans to quantify the cortical bone thickness of mandibular buccal shelf region and preferable site for buccal shelf implant placement in 10 hyperdivergent and 10 hypodivergent patients. Method: 20 cone beam computed tomographies were equally divided based on divergence. 6 sites were examined: mesial of first molar (6M), middle of first molar (6Mi), interdental between the first and second molar (Id), mesial of second molar (7M), middle of second molar (7Mi), and distal of second molar (7D). The study quantified the mandibular buccal shelf relative to its angle of slope, the cortical bone thickness measured perpendicular to the bone surface, the amount of cortical bone 30° angle to the bone surface. The cortical bone thickness was measured perpendicular and at a 30° angle at 3, 5, and 7 mm from the alveolar crest. Result: Significant change is seen at the buccal shelf slope at 6M ( P = .001) and further increase in this angle till 7D ( P = .003). Mean amount of cortical bone for hyperdivergent group at 7D is 4.77 ± 0.68 mm and for hypodivergent group is 3.86 ± 0.70 mm. Statistically significant differences were noted at insertion site at 90° and 30° for both groups at 3, 5, and 7 mm from the alveolar crest. Conclusion: Preferable site for buccal shelf implant placement is distal to the mandibular second molar. The maximum amount of cortical bone is found distal to the second molar 7 mm vertically from alveolar crest when the buccal shelf implant is placed at 30° angulation for hyperdivergent group.

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Section: Discussionmentioning

confidence: 73%

Comparative Evaluation of Cortical Bone Anatomy of Mandibular Buccal Shelf for Mini Implant Placement in Different Facial Divergence: A Cone Beam Computed Tomography Study

Trivedi¹,

Jani²,

Hirani³

et al. 2020

J Indian Orthod Soc

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“…angle of the miniscrew, the insertion procedure, the depth of the screw insertion and insertion torque [38,57,60].…”

Section: Temporary Anchorage Device (Tad) Placementmentioning

confidence: 99%

“…It is recommended to use the smallest possible FOV unless the CBCT is needed for the diagnosis of another condition in which case a large FOV may be preferred [60].…”

Section: Temporary Anchorage Device (Tad) Placementmentioning

confidence: 99%

Cone Beam Computed Tomography in Orthodontics

Kaygısız¹,

Tortop²

2017

Computed Tomography - Advanced Applications

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Cone beam computed tomography (CBCT) is an important source of three-dimensional volumetric data in clinical orthodontics. Due to the progress in the technology of CBCT, for orthodontic clinical diagnosis, treatment and follow-up, CBCT supply much more reliable information compared to conventional radiography. The most justified indications for the use of CBCT in orthodontics are the existence of impacted and transposed teeth. For the management of the impacted teeth, CBCT enhances the ability to localize these teeth accurately and to assess root resorption of adjacent teeth. Patients with craniofacial anomalies like cleft palate cases, the abnormalities of the temporomandibular joint contributing malocclusion, evaluation of airway morphology in obstructive sleep apnea cases, patients needing maxillary expansion or planning orthognathic surgery in severe skeletal discrepancies are also listed among the indications of using CBCT in orthodontics. CBCT is useful in identifying optimal site location for temporary skeletal anchorage device. The use of CBCT for the assessment of treatment outcomes and evaluation of cervical vertebral maturation are still controversial issues. It should be kept in mind that before using CBCT, justification and evaluation of risks and benefits are needed. In order to minimize the radiation dose, the exam should include only the areas of interest.

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Planning and Placing Temporary Anchorage Devices with the Aid of Cone Beam Computed Tomography Imaging

Cited by 2 publications

References 40 publications

Comparative Evaluation of Cortical Bone Anatomy of Mandibular Buccal Shelf for Mini Implant Placement in Different Facial Divergence: A Cone Beam Computed Tomography Study

Comparative Evaluation of Cortical Bone Anatomy of Mandibular Buccal Shelf for Mini Implant Placement in Different Facial Divergence: A Cone Beam Computed Tomography Study

Cone Beam Computed Tomography in Orthodontics

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