Fourteen titanium dental implants (Tioblast(TM)) were implanted singly in the proximal tibia of New Zealand rabbits for 120 days. A bone defect was surgically produced and filled with Bio-Oss(R) around six of these implants. After the animals were sacrificed and their organs harvested, bone segments were fixed and methacrylate embedded after the push-in test had been performed. Microradiography was performed on longitudinal sections of the implants, whereas scanning electron microscope analysis was performed on the remaining embedded half-implants using secondary electrons only. The results showed that the implants were apically and coronally surrounded by bone, whether Bio-Oss(R) was used or not. Fractures were evident through the newly formed bone and between the pre-existing and newly formed bone. Some fracture lines propagated through the bone and stopped at the implant surface without continuing along the bone-titanium interface. Detachment between the implant and the bone occurred at the coronal extremity of the implants and along its cervical region. These results highlight the fact that the bone-titanium interface has a high resistance to loading. It exhibited greater resistance than the newly formed bone and seems to behave in a manner similar to the cement lines of osteons.

Behavior of the bone-titanium interface after push-in testing: A morphological study / Zaffe, Davide; R. Rodriguez y., Baena; S., Rizzo; C., Brusotti; M., Soncini; R., Pietrabissa; Cavani, Francesco; V., Quaglini. - In: JOURNAL OF BIOMEDICAL MATERIALS RESEARCH. PART A. - ISSN 1552-4965. - STAMPA. - 64A:(2003), pp. 365-371. [10.1002/jbm.a.10366]

Behavior of the bone-titanium interface after push-in testing: A morphological study

ZAFFE, Davide;CAVANI, Francesco;
2003

Abstract

Fourteen titanium dental implants (Tioblast(TM)) were implanted singly in the proximal tibia of New Zealand rabbits for 120 days. A bone defect was surgically produced and filled with Bio-Oss(R) around six of these implants. After the animals were sacrificed and their organs harvested, bone segments were fixed and methacrylate embedded after the push-in test had been performed. Microradiography was performed on longitudinal sections of the implants, whereas scanning electron microscope analysis was performed on the remaining embedded half-implants using secondary electrons only. The results showed that the implants were apically and coronally surrounded by bone, whether Bio-Oss(R) was used or not. Fractures were evident through the newly formed bone and between the pre-existing and newly formed bone. Some fracture lines propagated through the bone and stopped at the implant surface without continuing along the bone-titanium interface. Detachment between the implant and the bone occurred at the coronal extremity of the implants and along its cervical region. These results highlight the fact that the bone-titanium interface has a high resistance to loading. It exhibited greater resistance than the newly formed bone and seems to behave in a manner similar to the cement lines of osteons.
64A
365
371
Behavior of the bone-titanium interface after push-in testing: A morphological study / Zaffe, Davide; R. Rodriguez y., Baena; S., Rizzo; C., Brusotti; M., Soncini; R., Pietrabissa; Cavani, Francesco; V., Quaglini. - In: JOURNAL OF BIOMEDICAL MATERIALS RESEARCH. PART A. - ISSN 1552-4965. - STAMPA. - 64A:(2003), pp. 365-371. [10.1002/jbm.a.10366]
Zaffe, Davide; R. Rodriguez y., Baena; S., Rizzo; C., Brusotti; M., Soncini; R., Pietrabissa; Cavani, Francesco; V., Quaglini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/307187
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