scholarly journals Comparison of peri-implant bone formation around injection-molded and machined surface zirconia implants in rabbit tibiae

2015 ◽  
Vol 34 (4) ◽  
pp. 508-515 ◽  
Author(s):  
Hong-Kyun KIM ◽  
Kyung Mi WOO ◽  
Won-Jun SHON ◽  
Jin-Soo AHN ◽  
Seunghee CHA ◽  
...  
Keyword(s):  
Bone Formation ◽  
Machined Surface ◽  
Injection Molded ◽  
Zirconia Implants

scholarly journals Bone formation around zirconia implants combined with rhBMP-2 gel in the canine mandible

2012 ◽  
Vol 24 (12) ◽  
pp. 1332-1338 ◽  
Author(s):  
Byung-Chul Lee ◽  
In-Sung Yeo ◽  
Dae-Joon Kim ◽  
Jai-Bong Lee ◽  
Sung-Hun Kim ◽  
...  
Keyword(s):  
Bone Formation ◽  
Zirconia Implants

Analysis of Removal Torque of Injection Molded Zirconia Implants; An Experimental Study on Beagles

2015 ◽  
Vol 15 (1) ◽  
pp. 339-341 ◽  
Author(s):  
Gye-Jeong Oh ◽  
Jae-Sam Ban ◽  
Hyun-Pil Lim ◽  
Kwi-Dug Yun ◽  
Kwang-Min Lee ◽  
...  
Keyword(s):  
Experimental Study ◽  
Removal Torque ◽  
Injection Molded ◽  
Zirconia Implants

Time-Dependent Periimplant Bone Reaction of Acidic Monomer-Treated Injection Molded Zirconia Implants in Rabbit Tibiae

2015 ◽  
pp. 1
Author(s):  
Won-Jun Shon ◽  
Kyung Mi Woo ◽  
Hong-Kyun Kim ◽  
Ho Beom Kwon ◽  
Seung-Yun Shin ◽  
...  
Keyword(s):  
Time Dependent ◽  
Bone Reaction ◽  
Injection Molded ◽  
Zirconia Implants

scholarly journals Biomechanical and Histological Analysis of Titanium (Machined and Treated Surface) Versus Zirconia Implant Materials: An In Vivo Animal Study

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 856 ◽  
Author(s):  
Sergio Gehrke ◽  
Juan Prados-Frutos ◽  
María Prados-Privado ◽  
José Calvo-Guirado ◽  
Jaime Aramburú Júnior ◽  
...  
Keyword(s):  
Pure Titanium ◽  
Titanium Implants ◽  
Commercially Pure Titanium ◽  
Machined Surface ◽  
Pure Zirconia ◽  
Level Of Significance ◽  
Torque Values ◽  
Zirconia Implants

Objectives: The aim of this study was to perform an in vivo histological comparative evaluation of bone formation around titanium (machined and treated surface) and zirconia implants. For the present study were used 50 commercially pure titanium implants grade IV, being that 25 implants with a machined surface (TiM group), 25 implants with a treated surface (TiT group) and, 25 implants were manufactured in pure zirconia (Zr group). The implants (n = 20 per group) were installed in the tibia of 10 rabbits. The implants distribution was randomized (n = 3 implants per tibia). Five implants of each group were analyzed by scanning electron microscopy and an optical laser profilometer for surface roughness characterization. Six weeks after the implantation, 10 implants for each group were removed in counter-torque for analysis of maximum torque value. The remaining samples were processed, included in historesin and cut to obtain non-decalcified slides for histomorphological analyses and histomorphometric measurement of the percentage of bone-implant contact (BIC%). Comparisons were made between the groups using a 5% level of significance (p < 0.05) to assess statistical differences. The results of removal torque values (mean ± standard deviation) showed for the TiM group 15.9 ± 4.18 N cm, for TiT group 27.9 ± 5.15 N cm and for Zr group 11.5 ± 2.92 N cm, with significant statistical difference between the groups (p < 0.0001). However, the BIC% presented similar values for all groups (35.4 ± 4.54 for TiM group, 37.8 ± 4.84 for TiT group and 34.0 ± 6.82 for Zr group), with no statistical differences (p = 0.2171). Within the limitations of the present study, the findings suggest that the quality of the new bone tissue formed around the titanium implants present a superior density (maturation) in comparison to the zirconia implants.

Effect of Process Conditions on Hydrophobic Characteristics of Injection Molded Silicone Rubber Surface Replicated from Electric Discharge Machined Surface

2013 ◽  
Vol 465-466 ◽  
pp. 1272-1276
Author(s):  
Jeong Jin Kang ◽  
Seok Kwan Hong ◽  
Sang Yong Lee ◽  
Sang Chul Lee ◽  
Sung Hee Lee
Keyword(s):  
Electric Discharge ◽  
Silicone Rubber ◽  
Injection Pressure ◽  
Machined Surface ◽  
Water Contact ◽  
Injection Speed ◽  
Liquid Silicone Rubber ◽  
Rubber Surface ◽  
Liquid Silicone ◽  
Injection Molded

In recent years, a lot of effort has gone into many researchers making components of specific functions, mimicking various microstructures in nature. In this study, a super hydrophobic surface on injection-molded liquid silicone rubber was fabricated, mimicking micro-bumps on a lotus leaf. Original patterns were machined by electric discharge machining and liquid silicone rubber was injection-molded by using the original patterns as molds. The hydrophobic characteristics of injection-molded liquid silicone rubber surface replicated from the original electric discharge machined surface were studied. According to variations of injection molding process parameters like mold temperature, injection speed, injection pressure, vacuum, etc. the variations of water contact angles, as a hydrophobic index, measured on the injection-molded surfaces were examined. The liquid silicone rubber surface molded from wire-cutting electric discharge machined surface at mold temperature 120°C, injection speed 5 mm/sec, injection pressure 70 bar and in a vacuum cavity showed water contact angle of 148°, which is close to super-hydrophobic level.

scholarly journals Clinical and radiographic success of injection‐molded 2‐piece zirconia implants submitted to immediate loading: A 12‐month report of two cases

2021 ◽  
Vol 9 (12) ◽  
Author(s):  
Geninho Thomé ◽  
Jean Uhlendorf ◽  
Camila Pereira Vianna ◽  
Waleska Caldas ◽  
Sergio Rocha Bernardes ◽  
...  
Keyword(s):  
Immediate Loading ◽  
Injection Molded ◽  
Zirconia Implants
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