scholarly journals Assessment of bone augmentation using silica calcium phosphate nanocomposite (SCPC)versus hydroxyapatite in open sinus lift Surgeries(A Scanning Electron Microscope, Cone Beam Computerized Tomography and histological study)

2018 ◽  
Vol 4 (2) ◽  
pp. 112-121
Author(s):  
Ahmed Abozekry ◽  
Ragia Mounir ◽  
Nadia Galal
Keyword(s):  
Electron Microscope ◽  
Calcium Phosphate ◽  
Scanning Electron Microscope ◽  
Computerized Tomography ◽  
Histological Study ◽  
Cone Beam ◽  
Sinus Lift ◽  
Bone Augmentation ◽  
Cone Beam Computerized Tomography ◽  
Scanning Electron

Use of Laser fluorescence and Scanning Electron Microscope to Evaluate Remineralization of Incipient Enamel Lesions Remineralized by Topical Application of Casein Phospho Peptide Amorphous Calcium Phosphate (CPP-ACP) Containing Cream

2008 ◽  
Vol 32 (3) ◽  
pp. 201-206 ◽  
Author(s):  
Deepika. Pai ◽  
Sham Bhat ◽  
Abhay Taranath ◽  
Sharan Sargod ◽  
Vinita Pai
Keyword(s):  
Electron Microscope ◽  
Calcium Phosphate ◽  
Scanning Electron Microscope ◽  
Topical Application ◽  
Amorphous Calcium Phosphate ◽  
In Vitro Study ◽  
Laser Fluorescence ◽  
Casein Phosphopeptide ◽  
Scanning Electron

The aim of this in vitro study was to evaluate the remineralization of incipient enamel lesions by the topical application of Casein PhosphoPeptide-Amorphous Calcium Phosphate (CPP-ACP) using laser fluorescence and scanning electron microscope. Sixty caries free extracted teeth were used in the study. Forty teeth were used as test samples, ten as positive and ten as negative controls. The samples were demineralized and then remineralized by the topical application of CPP-ACP for a period of 14 days. The remineralization was evaluated with the use of laser fluorescence and scanning electron microscope (SEM). The results of this study showed that the laser fluorescent readings of test samples after remineralization were highly significant (p <0.001). A significant number of test samples observed under SEM showed high scores of remineralization.

Horizontal Bone Augmentation Using Autogenous Block Grafts and Particulate Xenograft in the Severe Atrophic Maxillary Anterior Ridges: A Cone-Beam Computerized Tomography Case Series

2015 ◽  
Vol 41 (S1) ◽  
pp. 366-371 ◽  
Author(s):  
Alberto Monje ◽  
Florencio Monje ◽  
Federico Hernández-Alfaro ◽  
Raúl Gonzalez-García ◽  
Fernando Suárez-López del Amo ◽  
...  
Keyword(s):  
Computerized Tomography ◽  
Case Series ◽  
Cone Beam ◽  
Collagen Membrane ◽  
Bone Augmentation ◽  
Class Iii ◽  
Anterior Maxilla ◽  
Implant Placement ◽  
Ridge Width ◽  
Cone Beam Computerized Tomography

The aim of the present study was to use cone-beam computerized tomography (CBCT) to assess horizontal bone augmentation using block grafts, harvested from either the iliac crest (IC) or mandibular ramus (MR) combined with particulate xenograft and a collagen membrane for in the severe maxillary anterior ridge defects (cases Class III-IV according to Cadwood and Howell's classification). Fourteen healthy partially edentulous patients requiring extensive horizontal bone reconstruction in the anterior maxilla were selected for the study. Nineteen onlay block grafts (from IC or MR) were placed. The amount of horizontal bone gain was recorded by CBCT at 3 levels (5, 7, and 11 mm from the residual ridge) and at the time of bone grafting as well as the time of implant placement (≈5 months). Both block donor sites provided enough ridge width for proper implant placement. Nonetheless, IC had significantly greater ridge width gain than MR (Student t test) (4.93 mm vs 3.23 mm). This was further confirmed by nonparametric Mann-Whitney test (P = .007). Moreover, mean pristine ridge and grafted ridge values showed a direct association (Spearman coefficient of correlation = .336). A combination of block graft, obtained from the IC or MR, combined with particulate xenograft then covered with an absorbable collagen membrane is a predictable technique for augmenting anterior maxillary horizontal ridge deficiency.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

The Broad Applications of the Scanning Electron Microscope

1969 ◽  
Vol 27 ◽  
pp. 20-21
Author(s):  
C. T. Nightingale ◽  
S. E. Summers ◽  
T. P. Turnbull
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscopy ◽  
Surface Topography ◽  
Great Depth ◽  
Resolving Power ◽  
Depth Of Field ◽  
Pictorial Representations ◽  
Scanning Electron

The ease of operation of the scanning electron microscope has insured its wide application in medicine and industry. The micrographs are pictorial representations of surface topography obtained directly from the specimen. The need to replicate is eliminated. The great depth of field and the high resolving power provide far more information than light microscopy.

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