Utilizing micro-computed tomography to evaluate bone structure surrounding dental implants: A comparison with histomorphometry

Seventeen fresh lunates with stage III Kienböck’s disease were scanned with micro-computed tomography. Four regions of interest were selected to measure trabecular parameters, which were compared with those from normal lunates. Within the three regions in the distal surface, there was more compact trabecular bone in the middle region when compared with the palmar and dorsal regions. In the central part, the trabeculae of the Kienböck’s lunates were much thicker than those in normal lunates. The diameters of the palmar nutrient foramina of the Kienböck’s lunates were significantly smaller than those in normal lunates. In affected lunates, the bony disruptions were mostly located in the palmar or dorsal areas, which were shown from trabecular bone structure analysis to be structurally weaker. This leads to separation of the distal part of the fractured bone, disruption of the blood supply, poor bone remodelling and proneness to secondary fracture and eventual collapse.

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Three-dimensional analysis of cortical bone structure using X-ray micro-computed tomography

Physica A Statistical Mechanics and its Applications ◽

10.1016/j.physa.2004.03.046 ◽

2004 ◽

Vol 339 (1-2) ◽

pp. 125-130 ◽

Cited By ~ 23

Author(s):

A.C. Jones ◽

A.P. Sheppard ◽

R.M. Sok ◽

C.H. Arns ◽

A. Limaye ◽

...

Keyword(s):

Computed Tomography ◽

Cortical Bone ◽

Dimensional Analysis ◽

Bone Structure ◽

Three Dimensional ◽

Micro Computed Tomography ◽

X Ray

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The use of micro-computed tomography in dental applications

International Dental Research ◽

10.5577/intdentres.2019.vol9.no2.7 ◽

2019 ◽

Vol 9 (2) ◽

pp. 78-91 ◽

Cited By ~ 1

Author(s):

Begüm Erpaçal ◽

Özkan Adıgüzel ◽

Suzan Cangül

Keyword(s):

Computed Tomography ◽

Bone Structure ◽

Three Dimensional ◽

Fem Analysis ◽

Root Tip ◽

Rapid Progression ◽

Micro Computed Tomography ◽

Mineral Concentration ◽

Native Speakers Of English ◽

Dental Applications

Together with developments in digital imaging systems, there has been increasing use of micro-computed tomography (μCT) in many areas, primarily in dentistry. As this method allows 3-dimensional images to be taken providing safe and high quality results, without damaging the samples being examined, it is often preferred. Consequently, it has become possible to record rapid progression in endodontic studies in particular and to research and easily compare several techniques. Furthermore, this method can be used in tissue engineering, forming data for FEM analysis, the growth and development of craniofacial bones, imaging bone structure, and in the evaluation of implants and surrounding bone in root tip surgery, to determine mineral concentration in the teeth and to measure the thickness of enamel. The aim of this review was to focus on the areas of use of μCT in dentistry and state the advantages. Key Words: Micro-computed tomography, X-ray micro-CT, dental application, three-dimensional imaging How to cite this article: Erpaçal B, Adıgüzel Ö, Cangül S. The use of micro-computed tomography in dental applications. Int Dent Res 2019;9(2):78-91. Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Diffraction enhanced imaging of articular cartilage and comparison with micro-computed tomography of the underlying bone structure

European Radiology ◽

10.1007/s00330-004-2355-8 ◽

2004 ◽

Vol 14 (8) ◽

Cited By ~ 28

Author(s):

Sharmila Majumdar ◽

AhiSema Issever ◽

Andrew Burghardt ◽

Jeffrey Lotz ◽

Fulvia Arfelli ◽

...

Keyword(s):

Computed Tomography ◽

Articular Cartilage ◽

Bone Structure ◽

Micro Computed Tomography ◽

Diffraction Enhanced Imaging ◽

Enhanced Imaging

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Micro-computed tomography and mechanical evaluation of trabecular bone structure in osteopenic and osteoporotic fractures

Journal of Orthopaedic Surgery ◽

10.1177/2309499017692718 ◽

2017 ◽

Vol 25 (1) ◽

pp. 230949901769271 ◽

Cited By ~ 3

Author(s):

Fırat Ozan ◽

Mahmut Pekedis ◽

Şemmi Koyuncu ◽

Taşkın Altay ◽

Hasan Yıldız ◽

...

Keyword(s):

Computed Tomography ◽

Bone Structure ◽

Structural Parameters ◽

Osteoporotic Fractures ◽

Biomechanical Properties ◽

Compression Tests ◽

Micro Computed Tomography ◽

Mineral Density ◽

Trabecular Thickness ◽

Significant Difference

Purpose: Osteopenia and osteoporosis are the two most common musculoskeletal disorders in the elderly population. We determined whether osteopenic and osteoporotic patients with fractures exhibit differences in trabecular morphology and biomechanical properties of bone. Methods: Fourteen osteopenic patients and 28 osteoporotic patients with hip fractures who underwent hemiarthroplasty for proximal femoral fractures caused by low-energy injury were included. Bone mineral density (BMD) measurements were performed. Compression tests and high-resolution micro-computed tomography were used to assess cancellous bone samples obtained from the principal compressive region of the femoral head. Results: The BMD values were lower in the osteoporotic patients than in the osteopenic patients ( p < 0.05). There was a significant difference in the yield stress values between the groups ( p < 0.05). However, no significant differences in the strain energy density, stiffness and Young’s modulus were observed between the groups ( p > 0.05). The mean maximum stress was significantly higher in the osteoporotic patients than in the osteopenic patients ( p < 0.05). Although structural parameters, including bone volume (BV), BV fraction, trabecular thickness, trabecular connectivity density and trabecular number, were higher in the osteopenic patients, the differences were not significant ( p > 0.05). Trabecular separation values were significantly higher in the osteoporotic patients ( p < 0.05). Conclusion: Our results showed that the trabecular morphology and biomechanical properties of bone were not significantly different between osteopenic and osteoporotic patients in terms of some parameters.

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