Biomimetic treatment on dental implants for short-term bone regeneration
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Realitzat a/ambUniversity of Minnesota School of Dentistry
Tipus de documentArticle
Data publicació2014-01-01
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Abstract
Objectives
The main purpose of this work was to assess the
short-term bone regenerative potential of new osteoconductive
implants. The novelty of the study lies in the analysis of the
effectiveness of a novel two-step treatment which combines
shot-blasting with a thermo-chemical treatment, at very short
times after implant placement in a minipig model.
Materials and methods
Three hundred twenty implants with
four different surface treatments, namely bioactivated sur-
faces, micro-rough grit-blasted, micro-rough acid-etched
and smooth as-machined titanium implants were placed into
the bone of 20 minipigs. The percent of bone-to-implant
contact was determined 3 days, 1, 2, 3 and 10 weeks after
implant placement by histomorphometric analysis. Surface
composition, topography and wettability of the implant
specimens were analysed.
Results
The combination of shot-blasting and thermo-
chemical treatment accelerated bone regeneration at early
stages in comparison with all other treatments between
day 3 and week 3 (
p
<0.05). The value of osseointegration
attained at week 2 was maintained until the end of the
experiment without any significant changes (percent direct
contact
≈
85 %). This was mostly attributed to the ability
of these implants to form in vivo a layer of apatitic
mineral that coated the implant and could rapidly stimu-
late bone nucleation and growth from the implant surface.
Conclusions
The surface quality resulting from this treat-
ment on cpTi provided dental implants with a unique ability
of rapid bone regeneration and osseointegration.
Clinical relevance
This treatment represents a step forward in
the direction of reducing the time prior to implant loading
CitacióGil, F.J. [et al.]. Biomimetic treatment on dental implants for short-term bone regeneration. "Clinical oral investigations", 01 Gener 2014, vol. 18, núm. 1, p. 59-66.
ISSN1432-6981
Versió de l'editorhttp://link.springer.com/article/10.1007%2Fs00784-013-0953-z
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art%3A10.1007%2Fs00784-013-0953-z.pdf | 530,9Kb | Accés restringit |