Die Bearbeitung von unbeschichteten und Titan-Nitrit beschichteten Titan-Distanzhülsen mit verschiedenen Instrumenten
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Philipps-Universität Marburg
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Abstract
An in vitro study of the effect of mechanical
treatment of pure titanium and titanium nitride-coated
abutments
This in vitro study on pure titanium and titanium
nitride-coated abutments is aimed to examine the traces left by
various instruments and to determine the quantity of substance
removal. The relevant abutments were test material from
3i-Implant Innovations, USA.
The instruments used were
titanium curettes, steel curettes, plastic curettes, rubber cup
with Zircate Prophy Paste, ultrasonic scaler (Sonicflex) with
steel tip and airpolishing system (Prophyflex) with cleaning
powder.
Two test fields (2mm2 ) on the 11 pure and 11
nitride-coated abutments underwent standard treatment with each
instrument. The instruments were used in accordance to the
instructions given by the respective manufacturer. Nontreated
abutment surfaces served as controls. The treated and
nontreated surfaces were examined by a mechanical profilometer
(Perthometer S8P Feinprüf GmbH, Göttingen) for an increasing
roughness (Rz) and substance removal (Pt).
The examinations by
the scanning electron microscope and light microscope were to
evaluate certain traces caused by the treatment. The results
showed that the use of the steel curette left pronounced
traces, increased roughness (Ti:+127,4%/TiN+83,2%) and induced
high substance removal on both test abutments (Ti:8,48µm +/-
2,81 / TiN4,80µm +/- 0,99). Only the lower pressure of 0,4N
left no visible traces and no substance removal on the
TiN-coated abutment.
The use of the titanium curette showed
pronounced traces without a measurable substance removal on all
abutments. The pressure of 0,4N had a minor effect on the
TiN-coated test field than on the uncoated. An increasing
roughness is only visible on the uncoated abutments (+210,2%).
The ultrasonic system left pronounced traces on the uncoated
test fields including a highly increased roughness (+339,4%)
and an enormous substance removal (17,57µm +/- 2,87). The
TiN-coated abutments showed little to moderate traces. In this
case the treatment had a smoothened effect (-53,1%) without any
substance removal.
The use of the rubber cup created on the
uncoated abutments little to moderate traces without any
substance removal, whereas there was a smoothened effect
visible on the nitride-coated test fields with a reduced
roughness (-66,4%), no substance removal and only little traces
on the surface.
The plastic curette and the airpolishing
system left both abutment surface unchanged.
The additional
examination by a special light microscope (Zeiss MBO 50,
DigitalkameraProgRes 3008) was used to point out damages of the
nitride coating in colours after the instrumentation by the
ultrasonic scaler, the steel und titanium curette. The
ultrasonic system left only little traces but created a visible
removal of the TiN-layer. The titanium curette at a pressure of
4N partly removed the coating. The use of the steel curette
left pronounced traces with a completely removed coating.
In
summary, the TiN-coated makes the transgingival portion more
resistant against invasive periodontal hygiene treatments like
steel curette and ultrasonic but the coating gets lost even
after a single treatment and the basic roughness of the
untreated control fields of the TiN-coated abutments is much
higher than the roughness measured on the untreated pure
titanium abutment.
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Dates
Created: 2003Issued: 2004-01-22Updated: 2011-08-10
Faculty
Medizin
Publisher
Philipps-Universität Marburg
Language
ger
Data types
DoctoralThesis
Keywords
Implantatoberfläche , Profilometrieprofilometry , scanning electron microscopy , TiN-coatingImplant surfaceTiN-Beschichtung
DFG-subjects
Rasterelektronenmikroskop
DDC-Numbers
610
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Meer, Cordula (128714395): Die Bearbeitung von unbeschichteten und Titan-Nitrit beschichteten Titan-Distanzhülsen mit verschiedenen Instrumenten. : Philipps-Universität Marburg 2004-01-22. DOI: https://doi.org/10.17192/z2004.0011.
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This item has been published with the following license: In Copyright