Hydroxyapatite-based composite for dental implants: An in vivo removal torque experiment

Young Min Kong; Dong Hwan Kim; Hyoun Ee Kim; Seong Joo Heo; Jai Young Koak

doi:10.1002/jbm.10392

Hydroxyapatite-based composite for dental implants: An in vivo removal torque experiment

Young Min Kong
, Dong Hwan Kim
, Hyoun Ee Kim
, Seong Joo Heo
, Jai Young Koak

Seoul National University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Screw-shaped dental implants were fabricated from commercially pure Ti (c.p. Ti) and HA-based composites. The HA-based composites were fabricated by mixing HA with Al₂O₃-coated ZrO₂ powders. The mechanical properties of these composites were enhanced by a factor of 3. These were implanted into the rabbit tibiae and the removal torque to loosen the implants in vivo was measured in order to investigate the osteointegration. After a healing period of 6 weeks, the implants were retrieved with a torque gauge instrument. The HA-based composite implants showed an almost 2-times-higher removal torque when compared to the Ti implants (ANOVA, p < 0.05), indicating excellent biocompatibility to bone. Thus, HA-based composites had not only better mechanical properties but also similar bioactivity as HA itself. It is believed that a HA-based composite is suitable for artificial dental implants.

Original language	English
Pages (from-to)	714-721
Number of pages	8
Journal	Journal of Biomedical Materials Research
Volume	63
Issue number	6
DOIs	https://doi.org/10.1002/jbm.10392
State	Published - 2002
Externally published	Yes

Keywords

Commercially pure Ti (c.p. Ti)
Dental implant
HA-based composite
In vivo test
Torque

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10.1002/jbm.10392

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title = "Hydroxyapatite-based composite for dental implants: An in vivo removal torque experiment",

abstract = "Screw-shaped dental implants were fabricated from commercially pure Ti (c.p. Ti) and HA-based composites. The HA-based composites were fabricated by mixing HA with Al2O3-coated ZrO2 powders. The mechanical properties of these composites were enhanced by a factor of 3. These were implanted into the rabbit tibiae and the removal torque to loosen the implants in vivo was measured in order to investigate the osteointegration. After a healing period of 6 weeks, the implants were retrieved with a torque gauge instrument. The HA-based composite implants showed an almost 2-times-higher removal torque when compared to the Ti implants (ANOVA, p < 0.05), indicating excellent biocompatibility to bone. Thus, HA-based composites had not only better mechanical properties but also similar bioactivity as HA itself. It is believed that a HA-based composite is suitable for artificial dental implants.",

keywords = "Commercially pure Ti (c.p. Ti), Dental implant, HA-based composite, In vivo test, Torque",

author = "Kong, \{Young Min\} and Kim, \{Dong Hwan\} and Kim, \{Hyoun Ee\} and Heo, \{Seong Joo\} and Koak, \{Jai Young\}",

year = "2002",

doi = "10.1002/jbm.10392",

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journal = "Journal of Biomedical Materials Research",

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}

TY - JOUR

T1 - Hydroxyapatite-based composite for dental implants

T2 - An in vivo removal torque experiment

AU - Kong, Young Min

AU - Kim, Dong Hwan

AU - Kim, Hyoun Ee

AU - Heo, Seong Joo

AU - Koak, Jai Young

PY - 2002

Y1 - 2002

N2 - Screw-shaped dental implants were fabricated from commercially pure Ti (c.p. Ti) and HA-based composites. The HA-based composites were fabricated by mixing HA with Al2O3-coated ZrO2 powders. The mechanical properties of these composites were enhanced by a factor of 3. These were implanted into the rabbit tibiae and the removal torque to loosen the implants in vivo was measured in order to investigate the osteointegration. After a healing period of 6 weeks, the implants were retrieved with a torque gauge instrument. The HA-based composite implants showed an almost 2-times-higher removal torque when compared to the Ti implants (ANOVA, p < 0.05), indicating excellent biocompatibility to bone. Thus, HA-based composites had not only better mechanical properties but also similar bioactivity as HA itself. It is believed that a HA-based composite is suitable for artificial dental implants.

AB - Screw-shaped dental implants were fabricated from commercially pure Ti (c.p. Ti) and HA-based composites. The HA-based composites were fabricated by mixing HA with Al2O3-coated ZrO2 powders. The mechanical properties of these composites were enhanced by a factor of 3. These were implanted into the rabbit tibiae and the removal torque to loosen the implants in vivo was measured in order to investigate the osteointegration. After a healing period of 6 weeks, the implants were retrieved with a torque gauge instrument. The HA-based composite implants showed an almost 2-times-higher removal torque when compared to the Ti implants (ANOVA, p < 0.05), indicating excellent biocompatibility to bone. Thus, HA-based composites had not only better mechanical properties but also similar bioactivity as HA itself. It is believed that a HA-based composite is suitable for artificial dental implants.

KW - Commercially pure Ti (c.p. Ti)

KW - Dental implant

KW - HA-based composite

KW - In vivo test

KW - Torque

UR - https://www.scopus.com/pages/publications/0036436508

U2 - 10.1002/jbm.10392

DO - 10.1002/jbm.10392

M3 - Article

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SN - 0021-9304

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JO - Journal of Biomedical Materials Research

JF - Journal of Biomedical Materials Research

IS - 6

ER -

Hydroxyapatite-based composite for dental implants: An in vivo removal torque experiment

Abstract

Keywords

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