Dental Cone Beam Computed Tomography for Trabecular Bone Quality Analysis in Maxilla and Mandible

2019 ◽  
pp. 151-177
Author(s):  
T. Christy Bobby ◽  
Shwetha V. ◽  
Vijaya Madhavi
Keyword(s):  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Quality Analysis ◽  
Trabecular Bone Microarchitecture ◽  
The Stability ◽  
Maxilla And Mandible ◽  
Trabecular Bone Quality ◽  
Implant Treatment

The stability of a dental implant is one of the most important aspects that decide the success rate of implant treatment. The stability is considerably affected by the strength of trabecular bone present in maxilla and mandible. Thus, finding of trabecular bone strength is a key component for the success of dental implants. The trabecular bone strength is usually assessed by quantity of bone in terms of bone mineral density (BMD). Recently, it has been revealed that along with quantity of bone, strength of the bone also depends on quality features commonly referred as trabecular bone microarchitecture. Since the quality of the trabecular bone is varying across the maxilla and mandible, preoperative assessment of trabecular bone microarchitecture at sub-region of maxilla and mandible are essential for stable implant treatment. Thus, in this chapter, the authors inscribe the quantitative analysis of trabecular bone quality in maxilla and mandible using CBCT images by employing contourlet transform.

Dental Cone Beam Computed Tomography for Trabecular Bone Quality Analysis in Maxilla and Mandible

2021 ◽  
pp. 542-564
Author(s):  
T. Christy Bobby ◽  
Shwetha V. ◽  
Vijaya Madhavi
Keyword(s):  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Quality Analysis ◽  
Trabecular Bone Microarchitecture ◽  
The Stability ◽  
Maxilla And Mandible ◽  
Trabecular Bone Quality ◽  
Implant Treatment

The stability of a dental implant is one of the most important aspects that decide the success rate of implant treatment. The stability is considerably affected by the strength of trabecular bone present in maxilla and mandible. Thus, finding of trabecular bone strength is a key component for the success of dental implants. The trabecular bone strength is usually assessed by quantity of bone in terms of bone mineral density (BMD). Recently, it has been revealed that along with quantity of bone, strength of the bone also depends on quality features commonly referred as trabecular bone microarchitecture. Since the quality of the trabecular bone is varying across the maxilla and mandible, preoperative assessment of trabecular bone microarchitecture at sub-region of maxilla and mandible are essential for stable implant treatment. Thus, in this chapter, the authors inscribe the quantitative analysis of trabecular bone quality in maxilla and mandible using CBCT images by employing contourlet transform.

scholarly journals 7T MRI of distal radius trabecular bone microarchitecture: How trabecular bone quality varies depending on distance from end-of-bone

2016 ◽  
Vol 45 (3) ◽  
pp. 872-878 ◽  
Author(s):  
Lindsay M. Griffin ◽  
Stephen Honig ◽  
Cheng Chen ◽  
Punam K. Saha ◽  
Ravinder Regatte ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Distal Radius ◽  
Bone Quality ◽  
Bone Microarchitecture ◽  
Trabecular Bone Microarchitecture ◽  
Trabecular Bone Quality

scholarly journals Bone microarchitecture and estimated bone strength in men with active acromegaly

2017 ◽  
Vol 177 (5) ◽  
pp. 409-420 ◽  
Author(s):  
Paula P B Silva ◽  
Fatemeh G Amlashi ◽  
Elaine W Yu ◽  
Karen J Pulaski-Liebert ◽  
Anu V Gerweck ◽  
...  
Keyword(s):  
Bone Density ◽  
Trabecular Bone ◽  
Cortical Bone ◽  
Bone Strength ◽  
Bone Microarchitecture ◽  
Healthy Controls ◽  
Trabecular Bone Density ◽  
Trabecular Bone Microarchitecture ◽  
Skeletal Site ◽  
Active Acromegaly

Context Both acromegaly and adult growth hormone deficiency (GHD) are associated with increased fracture risk. Sufficient data are lacking regarding cortical bone microarchitecture and bone strength, as assessed by microfinite element analysis (µFEA). Objective To elucidate both cortical and trabecular bone microarchitecture and estimated bone strength in men with active acromegaly or GHD compared to healthy controls. Design and subjects Cross-sectional study at a clinical research center, including 48 men (16 with acromegaly, 16 with GHD and 16 healthy controls). Outcome measures Areal bone mineral density (aBMD), cortical and trabecular bone microarchitecture and estimated bone strength (µFEA) at the radius and tibia. Results aBMD was not different between the 3 groups at any skeletal site. At the radius, patients with acromegaly had greater cortical area (P < 0.0001), cortical thickness (P = 0.0038), cortical pore volume (P < 0.0001) and cortical porosity (P = 0.0008), but lower trabecular bone density (P = 0.0010) compared to controls. At the tibia, patients with acromegaly had lower trabecular bone density (P = 0.0082), but no differences in cortical bone microstructure. Compressive strength and failure load did not significantly differ between groups. These findings persisted after excluding patients with hypogonadism. Bone microarchitecture was not deficient in patients with GHD. Conclusions Both cortical and trabecular microarchitecture are altered in men with acromegaly. Our data indicate that GH excess is associated with distinct effects in cortical vs trabecular bone compartments. Our observations also affirm the limitations of aBMD testing in the evaluation of patients with acromegaly.

scholarly journals Serum FGF-21 levels are associated with worsened radial trabecular bone microarchitecture and decreased radial bone strength in women with anorexia nervosa

Bone ◽  
2015 ◽  
Vol 77 ◽  
pp. 6-11 ◽  
Author(s):  
Pouneh K. Fazeli ◽  
Alexander T. Faje ◽  
Ela J. Cross ◽  
Hang Lee ◽  
Clifford J. Rosen ◽  
...  
Keyword(s):  
Anorexia Nervosa ◽  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Microarchitecture ◽  
Trabecular Bone Microarchitecture ◽  
Radial Bone

Surface curvatures of trabecular bone microarchitecture

Bone ◽  
2002 ◽  
Vol 30 (1) ◽  
pp. 191-194 ◽  
Author(s):  
H Jinnai ◽  
H Watashiba ◽  
T Kajihara ◽  
Y Nishikawa ◽  
M Takahashi ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Microarchitecture ◽  
Trabecular Bone Microarchitecture

The Effects of Bone Microstructure on Subsidence Risk for ALIF, LLIF, PLIF, and TLIF Spine Cages

2019 ◽  
Vol 141 (3) ◽  
Author(s):  
Vivek Palepu ◽  
Melvin D. Helgeson ◽  
Michael Molyneaux-Francis ◽  
Srinidhi Nagaraja
Keyword(s):  
Trabecular Bone ◽  
Bone Quality ◽  
Volume Fraction ◽  
Lumbar Fusion ◽  
Lumbar Vertebrae ◽  
Micro Ct ◽  
Cage Subsidence ◽  
Maximum Subsidence ◽  
Trabecular Bone Quality ◽  
The Impact

Several approaches (anterior, posterior, lateral, and transforaminal) are used in lumbar fusion surgery. However, it is unclear whether one of these approaches has the greatest subsidence risk as published clinical rates of cage subsidence vary widely (7–70%). Specifically, there is limited data on how a patient's endplate morphometry and trabecular bone quality influences cage subsidence risk. Therefore, this study compared subsidence (stiffness, maximum force, and work) between anterior (ALIF), lateral (LLIF), posterior (PLIF), and transforaminal (TLIF) lumbar interbody fusion cage designs to understand the impact of endplate and trabecular bone quality on subsidence. Forty-eight lumbar vertebrae were imaged with micro-ct to assess trabecular microarchitecture. micro-ct images of each vertebra were then imported into image processing software to measure endplate thickness (ET) and maximum endplate concavity depth (ECD). Generic ALIF, LLIF, PLIF, and TLIF cages made of polyether ether ketone were implanted on the superior endplates of all vertebrae and subsidence testing was performed. The results indicated that TLIF cages had significantly lower (p < 0.01) subsidence stiffness and maximum subsidence force compared to ALIF and LLIF cages. For all cage groups, trabecular bone volume fraction was better correlated with maximum subsidence force compared to ET and concavity depth. These findings highlight the importance of cage design (e.g., surface area), placement on the endplate, and trabecular bone quality on subsidence. These results may help surgeons during cage selection for lumbar fusion procedures to mitigate adverse events such as cage subsidence.

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