Dental News - Histological and biomechanical effects of implant surfaces sandblasted with titanium dioxide microparticles: An experimental study using the rabbit tibia model

Dr. Sérgio Alexandre Gehrke et al.

Tue. 24. January 2017

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The objective of this study was to investigate the effect of sandblasted, large-grit, acid-etched (SLA) implant surfaces treated with titanium dioxide (TiO2) microparticles on the implants’ stability and resistance to reverse torque.

Materials and methods
Six rabbits received 24 cylindrical dental implants and were placed in two groups (n = 3 per group): control group, with smooth surfaces; and test group, with the SLA surface treated with TiO₂ microparticles. All of the animals were sacrificed after four weeks. Half of the implants (one per animal from each group) were used to test removal torque values and half of them were used for the histological analysis.

Results
Reverse torque was significantly different between the groups (p = 0.0001). The histological analysis showed higher degrees of bone organization in surface samples from the test group.

Conclusions
Results indicate that blasting implant surfaces with TiO₂ particles is an appropriate treatment option, with minimal risk of contamination by residual debris from the procedure.

Editorial note: The full article was published in the 4/2016 issue of the Journal of Oral Science and Rehabilitation. It can be access free of charge at www.dtscience.com.

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