Tissues at the surface of the new composite material titanium/glass‐ceramic for replacement of bone and teeth

Müller-Mai, C.; Schmitz, H. J.; Strunz, V.; Fuhrmann, Günter Fred; Fritz, Th.; Groß, Ulrich

doi:10.1002/jbm.820231005

Cited by 40 publications

(10 citation statements)

References 30 publications

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“…The metal was titanium and composites with various percentages of glass-cerarnic particles were tested in vivo. These tests gave some promising results (Muller-Mai et al, 1989) .…”

Section: 3 2 Ceravital®mentioning

confidence: 94%

Bioactive Materials and Processing

Wang¹

2004

Biological and Medical Physics, Biomedical Engineering

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“…The metal was titanium and composites with various percentages of glass-cerarnic particles were tested in vivo. These tests gave some promising results (Muller-Mai et al, 1989) .…”

Section: 3 2 Ceravital®mentioning

confidence: 94%

Bioactive Materials and Processing

Wang¹

2004

Biological and Medical Physics, Biomedical Engineering

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“…40% nach 3 Monaten [19]. Solide zylindrische Implantate der Glaskeramik Ceravital zeigten in einem Kaninchenmodell in Abhängigkeit von der Oberflächenrauhigkeit zwischen 60% und 85% Knochenkontakt nach 3 und 6 Monaten [20]. In einem Rattenmodell konnten Knochenkontakte an HA-Oberflächen von bis zu 96% nach 6 Monaten Liegezeit nachgewiesen werden [29].…”

Section: Materials Und Methodenunclassified

Madreporische Hydroxylapatitgranulate zur Füllung ossärer Defekte

et al. 2001

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Two macrocrystalline madreporic granular hydroxyapatite implants of different size range (single crystal size within both implants 1-3 microns) were implanted for 7, 28, 84 and 168 days into the trabecular bone of the distal femur epiphysis of rabbits. Both materials were investigated histologically. For testing of granular materials a new animal model has been developed. The drill hole was closed by reimplantation of an autologeous chondrocortical tissue slice to prevent loss of particles into the knee-joint. Both of the granular materials tested developed increasing bone bonding from the 7th day on to outer surfaces and pore surfaces. The degradation of both of the materials affected the superficial implant layers in soft-tissue interfaces exclusively and was mainly due to passive processes, e.g. leaching, fragmentation of granules after crack-production, particulate degradation and subsequent phagocytosis of liberated implant particles by macrophages and foreign body giant cells. Zones of superficial implant degradation were bonded partially to bone a second time. A possible low-degree, active superficial degradation by foreign body giant cells is discussed. Osteoclasts of typical morphology as being observed on other hydroxyapatite implant surfaces were not demonstrated. This was related to the low degradation rate of the implants. Both of the granular materials tested are useful in filling bone defects. A guided tissue regeneration due to partial implant degradation and subsequent bone formation seems to be impossible since the degradation rate of the materials is too low.

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“…2.1 Implantation Titanium (ASTM grade 4) cylinders, 8 mm length and 4 mm diameter, were implanted into the distal femur of female chinchilla rabbits (mean body weight 3.4 kg) according to a standardized surgical procedure, which has been used in previous studies [8][9][10][11]: perioperatively the animals received 20 mg gentamycine and 100 mg o-carbamoyl-phenoxy-acetic acid sodium salt as antibiotic and antiphlogistic prophylaxis. After general anesthesia with a ketaminehydrochloridexylazine mixture an incision medial to the knee preceded an arthrotomy of the knee joint.…”

Section: Methodsmentioning

confidence: 99%

Tensile and torsional shear strength of the bone implant interface of titanium implants in the rabbit

Pröbster

Voigt

Fuhrmann

et al. 1994

J Mater Sci: Mater Med

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The effect of three different titanium plasma flame spray coatings on the tensile strength and the effect of macrostructures on the torsional shear strength of the bone implant interface was studied. Titanium cylinders, of 8 mm length and 4 mm diameter, were implanted into distal rabbit femurs. For tensile testing, two porous titanium plasma flame spray coatings, Plasmapore ®, fine-grain Plasmapore% 1 dense, unporous coating, Plasmapore ® fine on cylinders with axial grooves, and corundum blasted specimens as control group were used. For torsional loading smooth, and macrostructured cylinders with axial grooves, both with Plasmapore ® fine-coating, were used. After 168 days the implant-bone interface was biomechanically tested. A tensile test and a torsional shear test was performed. The results indicated, that the titanium plasma flame spray coatings did not differ in their tensile interface strength, but yielded a stronger interface as sandblasted surfaces and that the macrostructures did not influence the torsional shear strength.

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Tissues at the surface of the new composite material titanium/glass‐ceramic for replacement of bone and teeth

Cited by 40 publications

References 30 publications

Bioactive Materials and Processing

Bioactive Materials and Processing

Madreporische Hydroxylapatitgranulate zur Füllung ossärer Defekte

Tensile and torsional shear strength of the bone implant interface of titanium implants in the rabbit

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