A histomorphometric and removal torque analysis of c.p. titanium implants inserted in reamed bone beds with and without acrylic cement

1992 ◽  
Vol 3 (3) ◽  
pp. 170-174 ◽  
Author(s):  
R. Morberg ◽  
T. Albrektsson
Keyword(s):  
Titanium Implants ◽  
Removal Torque ◽  
Acrylic Cement ◽  
Torque Analysis ◽  
Bone Beds

Removal Torque Analysis of Implants in Rabbit Tibia After Topical Application of Simvastatin Gel

2014 ◽  
Vol 40 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Fatima Neves Faraco-Schwed ◽  
Luiz Macedo Mangueira ◽  
Joao Vitor Albuquerque Ribeiro ◽  
Alexsandro Da Silva Antao ◽  
Jamil Awad Shibli
Keyword(s):  
Topical Application ◽  
Topical Administration ◽  
Titanium Implants ◽  
Removal Torque ◽  
Implant Placement ◽  
Group I ◽  
Torque Wrench ◽  
Rabbit Tibia ◽  
Torque Analysis ◽  
Torque Values

The aim of this study was to evaluate the effects of topical application of simvastatin gel (7.5 mg) on the removal torque of titanium implants in the rabbit tibia. A total of 32 surgeries were performed on 16 New Zealand rabbits for the placement of 2 implants in 1 tibia of each rabbit. Only 1 of the surgical defects was injected with 30 mg/mL of simvastatin gel before implant placement. The initial torque was set at 20 N.cm, and removal torque testing was performed 28 and 56 days postoperatively with a Tonishi torque wrench. Surgical defects were divided into 4 groups: group IG-28 (test, 28 days), group IG-56 (test, 56 days), group I-28 (control, 28 days), and group I-56 (control, 56 days). Removal torque values were higher in group IG-56 than in groups IG-28, I-28, and I-56 (P < .05). Groups IG-28, I-28, and I-56 showed similar values (P > .05). Removal torque force increased under the influence of simvastatin, indicating that topical administration of a 7.5-mg dose of simvastatin gel is effective in improving the torque force required to remove implants inserted in the rabbit tibia.

scholarly journals Histologic evaluation and removal torque analysis of nano- and microtreated titanium implants in the dogs

2009 ◽  
Vol 1 (2) ◽  
pp. 75 ◽  
Author(s):  
Seok Ahn ◽  
Mong-Sook Vang ◽  
Hong-So Yang ◽  
Sang-Won Park ◽  
Hyun-Pil Lim
Keyword(s):  
Titanium Implants ◽  
Removal Torque ◽  
Histologic Evaluation ◽  
Torque Analysis

Histomorphometric and removal torque analysis for TiO2 hyphen;blasted titanium implants. An experimental study on dogs.

1992 ◽  
Vol 3 (2) ◽  
pp. 77-84 ◽  
Author(s):  
Klaus Gotfredsen ◽  
Lars Nimb ◽  
Erik Hjörting-hansen ◽  
Jørgen Steen Jensen ◽  
Anders Holmén
Keyword(s):  
Experimental Study ◽  
Titanium Implants ◽  
Removal Torque ◽  
Torque Analysis

scholarly journals Evaluation of Bone Healing on Sandblasted and Acid Etched Implants Coated with Nanocrystalline Hydroxyapatite: AnIn VivoStudy in Rabbit Femur

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Lory Melin Svanborg ◽  
Luiz Meirelles ◽  
Victoria Franke Stenport ◽  
Per Kjellin ◽  
Fredrik Currie ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Healing ◽  
Healing Time ◽  
Titanium Implants ◽  
Bone Area ◽  
Removal Torque ◽  
Nanocrystalline Hydroxyapatite ◽  
Torque Analysis ◽  
Hydroxyapatite Nanocrystals ◽  
Rabbit Femur

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.

scholarly journals Torque Analysis of a Triple Acid-Etched Titanium Implant Surface

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
Ana Emília Farias Pontes ◽  
Cássio Torres de Toledo ◽  
Valdir Gouveia Garcia ◽  
Fernando Salimon Ribeiro ◽  
Celso Eduardo Sakakura
Keyword(s):  
Titanium Implant ◽  
Titanium Implants ◽  
Acid Etching ◽  
Subtraction Method ◽  
Implant Surface ◽  
Removal Torque ◽  
Torque Analysis ◽  
Preliminary Study ◽  
Torque Values ◽  
Titanium Implant Surface

The present study aimed to evaluate the removal torque of titanium implants treated with triple acid etching. Twenty-one rats were used in this study. For all animals, the tibia was prepared with a 2 mm drill, and a titanium implant (2 × 4 mm) was inserted after treatment using the subtraction method of triple acid etching. The flaps were sutured. Seven animals were killed 14, 28, and 63 days after implant installation, and the load necessary for removing the implant from the bone was evaluated by using a torque meter. The torque values were as follows: 3.3 ± 1.7 Ncm (14 days), 2.2 ± 1.3 Ncm (28 days), and 6.7 ± 1.4 Ncm (63 days). The torque value at the final healing period (63 days) was statistically significantly different from that at other time points tested (ANOVA,p=0.0002). This preliminary study revealed that treatment with triple acid etching can create a promising and efficient surface for the process of osseointegration.

Effect of 17β-Estradiol and Alendronate on the Removal Torque of Osseointegrated Titanium Implants in Ovariectomized Rats

2007 ◽  
Vol 78 (7) ◽  
pp. 1316-1321 ◽  
Author(s):  
Gabriela Giro ◽  
Celso Eduardo Sakakura ◽  
Daniela Gonçalves ◽  
Rosa M.R. Pereira ◽  
Elcio Marcantonio ◽  
...  
Keyword(s):  
Titanium Implants ◽  
Ovariectomized Rats ◽  
Removal Torque ◽  
17Β Estradiol
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