Reosseointegration After Regenerative Surgical Therapy Using a Synthetic Bone Substitute for Peri-implantitis: Human Autopsy Study

2018 ◽  
Vol 38 (4) ◽  
pp. 585-591 ◽  
Author(s):  
Sungtae Kim ◽  
Kyung-Seok Hu ◽  
Ui-Won Jung
2015 ◽  
Vol 41 (3) ◽  
pp. 240-250 ◽  
Author(s):  
Carlo Mangano ◽  
Barbara Barboni ◽  
Luca Valbonetti ◽  
Paolo Berardinelli ◽  
Alessandra Martelli ◽  
...  

In this study, the in vivo behavior of a custom-made three-dimensional (3D) synthetic bone substitute was evaluated when used as scaffold for sinus augmentation procedures in an animal model. The scaffold was a calcium phosphate ceramic fabricated by the direct rapid prototyping technique, dispense-plotting. The geometrical and chemical properties of the scaffold were first analyzed through light and electron scanning microscopes, helium picnometer, and semi-quantitative X-ray diffraction measurements. Then, 6 sheep underwent monolateral sinus augmentation with the fabricated scaffolds. The animals were euthanized after healing periods of 45 and 90 days, and block sections including the grafted area were obtained. Bone samples were subjected to micro computerized tomography, morphological and histomorphometric analyses. A complete integration of the scaffold was reported, with abundant deposition of newly formed bone tissue within the biomaterial pores. Moreover, initial foci of bone remodeling were mainly localized at the periphery of the implanted area after 45 days, while continuous bridges of mature lamellar bone were recorded in 90-day specimens. This evidence supports the hypothesis that bone regeneration proceeds from the periphery to the center of the sinus cavity. These results showed how a technique allowing control of porosity, pore design, and external shape of a ceramic bone substitute may be valuable for producing synthetic bone grafts with good clinical performances.


2013 ◽  
Vol 28 (6) ◽  
pp. e432-e439 ◽  
Author(s):  
Enrico Conserva ◽  
Federico Foschi ◽  
Ranieri Cancedda ◽  
Maddalena Mastrogiacomo

2011 ◽  
Vol 48 (6) ◽  
pp. 654-662 ◽  
Author(s):  
Ruiter Ad De ◽  
Gert Meijer ◽  
Titiaan Dormaar ◽  
Nard Janssen ◽  
Andries Van Der Bilt ◽  
...  

Objective The aim of this study in goats was to test the hypothesis that a novel synthetic bone substitute beta tricalcium phosphate (β-TCP) can work as well as autologous bone harvested from the iliac crest for grafting and repair of alveolar clefts. Design Ten adult Dutch milk goats ( Capra hircus) were used in a split-mouth study design. Main outcome measures Volumetric histologic assessment of new bone formation and radiographic measurement of orthodontic movement of teeth in a formerly created alveolar cleft. Conclusions The synthetic bone substitute β-TCP was shown to result in bone healing similar to that of iliac crest bone. The surgical, orthodontic, and histologic results now warrant the testing of β-TCP in the human cleft situation.


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