MTXTM Microtextured Titanium
Zimmer Dental’s MTX surface allows for increased bone apposition for long-term
success
MTX is a non-coated, microtextured surface created by grit-blasting the
machined titanium implant surface with hydroxylapatite (HA) particles, followed
by washing in non-etching acid and distilled water baths to remove residual blasting
material.
The MTX process does not weaken the titanium implant body, ensuring
that the strength of the implant is maintained. Furthermore, implant threads are
not rounded by the MTX process, and cutting grooves remain intact for efficient
self-tapping.
While all microtextured titanium surfaces share some of the same roughness parameters,
great variations in peaks and valleys can occur, depending on the surface treatment.1-2
MTX treatment results in a relatively uniform surface of closely spaced
micropits that have demonstrated excellent results at both the histomorphometric1
and clinical levels.1-4
Histomorphometric Evaluations
The MTX surface has been shown to allow for increased bone apposition compared
to machined surfaces. In a clinical study involving the placement of experimental
microimplants with split machined and MTX surface topographies into grafted
and non-grafted human sinuses, mean bone-to-implant contact was significantly greater
for MTX (72.31% ± 17.76%) compared to the machined surfaces (38.01% ± 19.32%).3
In a recent study4, the MTX surface achieved excellent bone-to-implant
contact and osteoconductive capacity.
1Mazor Z, Cohen DK. Preliminary 3-dimensional surface roughness measurement
and early loading results with a microtextured implant surface. Int J Oral Maxillofac
Implants 2003;18(5):729-738.
2Al-Nawas B, Götz H. Three-dimensional topographic and metrologic evaluation
of dental implants by confocal laser scanning microscopy. Clin Implant Dent Relat
Res 2003;5(3):176-183.
3Trisi P, Marcato C, Todisco M. Bone-to-implant apposition with machined
and MTX microtextured implant surfaces in human sinus grafts. Int J Periodontics
Restorative Dent 2003;23(5):427-437.
4Todisco M, Trisi P. Histomorphometric evaluation of six dental implant
surfaces after early loading in augmented human sinuses. J Oral Implantol 2006;32(4):153-166.
MP-1® HA Coating
Zimmer Dental’s MP-1 HA process increases HA crystalline content for greater
coating stability
Through nearly two decades of continuing clinical research, Zimmer Dental has developed
its proprietary HA coating process – the MP-1 process. It increases the
average crystalline content of the HA from 77%
to >90%, contributing to greater coating stability than lower crystalline HA coatings.1
Clinical Evaluations
HA-coated implant surfaces have been shown in independent studies to be highly effective
in achieving and maintaining excellent bone-to-implant contact. In one clinical
study, the cumulative 5-year survival rate was 99.3% for almost 4,000 Zimmer Dental
Spline® implants with MP-1 HA coating.2
Results may vary.
1 Data on file.
2 Pikos MA, Cannizzaro G, Korompilas L, Turrillas EA, El Askary AES,
Rao W, Carusi G, Lauverjat YMP. International retrospective multicenter study of
8130 HA-coated cylinder implants: 5-year survival data. International Magazine of
Oral Implantology 2002:3(1):6-15.