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Updated: Aug 2, 2026

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
The effect of calcium phosphate implant coating on osteoconduction
1Stomatology Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Objective:
The purpose of this study was to determine whether a calcium phosphate (CaP) coating would have a significant impact on osteoconduction.
Study Design:
In this investigation, porous-surfaced titanium alloy (Ti-6Al-4V) implants were prepared with or without the addition of a thin surface layer of CaP applied by means of sol-gel coating and implanted into the tibiae of 16 rabbits. Implant sites were allowed to heal for 2 weeks, after which specimens were retrieved for morphometric assessment by using backscatter scanning electron microscopy and the Bioquant Image Analyzer.
Results:
The absolute contact length was significantly (P <.01) higher for CaP-coated implants (1.18 mm) than for the noncoated implants (0.74 mm), as were the contact length fraction (40.4% vs 27.0%; P <.01) and the straight-line bone growth (1.19 mm vs 1.04 mm; P <.01).
Conclusion:
On the basis of the findings in this study, the addition of a thin layer of CaP to the implant promotes accelerated bone healing around porous-surfaced implants-even after only 2 weeks of initial healing.
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