Early Trabecular Bone Healing Around Titanium Implants: A Histologic Study in Rabbits

2007 ◽  
Vol 78 (3) ◽  
pp. 510-517 ◽  
Author(s):  
Elke Slaets ◽  
Geert Carmeliet ◽  
Ignace Naert ◽  
Joke Duyck
2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Lory Melin Svanborg ◽  
Luiz Meirelles ◽  
Victoria Franke Stenport ◽  
Per Kjellin ◽  
Fredrik Currie ◽  
...  

This study aimed at investigating if a coating of hydroxyapatite nanocrystals would enhance bone healing over time in trabecular bone. Sandblasted and acid etched titanium implants with and without a submicron thick coat of hydroxyapatite nanocrystals (nano-HA) were implanted in rabbit femur with healing times of 2, 4, and 9 weeks. Removal torque analyses and histological evaluations were performed. The torque analysis did not show any significant differences between the implants at any healing time. The control implant showed a tendency of more newly formed bone after 4 weeks of healing and significantly higher bone area values after 9 weeks of healing. According to the results from this present study, both control and nano-HA surfaces were biocompatible and osteoconductive. A submicron thick coating of hydroxyapatite nanocrystals deposited onto blasted and acid etched screw shaped titanium implants did not enhance bone healing, as compared to blasted and etched control implants when placed in trabecular bone.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Antonio Scarano ◽  
Ezio Crocetta ◽  
Alessandro Quaranta ◽  
Felice Lorusso

Background. Pure titanium continues to be the first choice for dental implants and represents the gold standard for their biocompatibility and physical and mechanical characteristics, while the titanium alloy (Ti6Al4V) has good mechanical properties. The surface structure of the titanium oxide layer formation on the surface influences and improves the bone response around dental implants. Purpose. The purpose of this study is to evaluate the influence of a thermal treatment of Ti6Al4V implant surfaces and the bone healing response in a rabbit model. Methods. Altogether sixteen implants with same design were inserted into the distal femoral metaphysis. A screw (13 mm long, 4 mm in diameter) was inserted in an implant bed. Each rabbit received two implants, one in the left femur and one in the right femur. The samples were histologically and histomorphometrically evaluated at 8 weeks. Results. A statistically significant difference (p = 0.000034) was present histologically in the percentages of bone-implant contact (BIC) between the test group (BIC = 69.25±4.49%.) and control group (BIC = 56.25 ± 4.8%) by one-way analysis of variance (ANOVA). Significance was set at p ≤ 0.05. Conclusions. The outcome of the present study indicates a novel approach to improving bone healing around titanium implants.


2008 ◽  
Vol 79 (5) ◽  
pp. 881-887 ◽  
Author(s):  
Daniela da Silva Feitosa ◽  
Beatriz de Brito Bezerra ◽  
Gláucia Maria Bovi Ambrosano ◽  
Francisco Humberto Nociti ◽  
Márcio Zaffalon Casati ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Raluca M. Boteanu ◽  
Viorel I. Suica ◽  
Luminita Ivan ◽  
Florentina Safciuc ◽  
Elena Uyy ◽  
...  

Abstract Due to their excellent mechanical and biocompatibility properties, titanium-based implants are successfully used as biomedical devices. However, when new bone formation fails for different reasons, impaired fracture healing becomes a clinical problem and affects the patient's quality of life. We aimed to design a new bioactive surface of titanium implants with a synergetic PEG biopolymer-based composition for gradual delivery of growth factors (FGF2, VEGF, and BMP4) during bone healing. The optimal architecture of non-cytotoxic polymeric coatings deposited by dip coating under controlled parameters was assessed both in cultured cells and in a rat tibial defect model (100% viability). Notably, the titanium adsorbed polymer matrix induced an improved healing process when compared with the individual action of each biomolecules. High-performance mass spectrometry analysis demonstrated that recovery after a traumatic event is governed by specific differentially regulated proteins, acting in a coordinated response to the external stimulus. Predicted protein interactions shown by STRING analysis were well organized in hub-based networks related with response to chemical, wound healing and response to stress pathways. The proposed functional polymer coatings of the titanium implants demonstrated the significant improvement of bone healing process after injury.


2016 ◽  
Vol 125 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Xiaofei Zheng ◽  
Anchun Mo ◽  
Yuan Wang ◽  
Yuchen Guo ◽  
Yunshu Wu ◽  
...  

2008 ◽  
Vol 19 (2) ◽  
pp. 173-181 ◽  
Author(s):  
Norinaga Kojima ◽  
Shogo Ozawa ◽  
Yasuhiro Miyata ◽  
Hideki Hasegawa ◽  
Yoshinobu Tanaka ◽  
...  

2003 ◽  
Vol 74 (7) ◽  
pp. 976-981 ◽  
Author(s):  
Celso E. Sakakura ◽  
Rogério Margonar ◽  
Marinella Holzhausen ◽  
Francisco H. Nociti ◽  
Rodolfo Candia Alba ◽  
...  

2016 ◽  
Vol 28 (10) ◽  
pp. e146-e150 ◽  
Author(s):  
Marta Ferreira Bastos ◽  
Caroline Ribeiro Serrão ◽  
Tamires Szeremeske Miranda ◽  
Daniele Ferreira Cruz ◽  
Fernando de Souza Malta ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document