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Tytuł pozycji:

Impact of abutment microstructure and insertion depth on crestal bone changes at nonsubmerged titanium implants with platform switch.

Tytuł :
Impact of abutment microstructure and insertion depth on crestal bone changes at nonsubmerged titanium implants with platform switch.
Autorzy :
Schwarz, Frank
Mihatovic, Ilja
Golubovich, Vladimir
Schär, Alex
Sager, Martin
Becker, Jürgen
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Temat :
DENTAL abutments
ALVEOLAR process
TITANIUM
DENTAL implants
MICROSTRUCTURE
BONE resorption
LABORATORY dogs
Źródło :
Clinical Oral Implants Research; Mar2015, Vol. 26 Issue 3, p287-292, 6p, 4 Color Photographs, 1 Chart
Czasopismo naukowe
Objectives To assess the impact of microgrooved abutments and the insertion depth on crestal bone changes at titanium implants with platform switch. Materials and Methods A total of n = 3 titanium implants (conical abutment connection) were inserted in each hemimandible of n = 6 foxhounds with the implant shoulder ( IS) located at either epicrestal, supracrestal (+1 mm), or subcrestal (−1 mm) positions and randomly (split-mouth design) connected with machined or partially microgrooved healing abutments. At 20 weeks, tissue biopsies were processed for histological (primary outcome: net bone loss - NET) analyses. Results Subcrestal positioning of IS tended to be associated with higher mean NET values (mm) at both machined (subcrestal [−0.72 ± 0.32] > epicrestal [−0.34 ± 0.21] > supracrestal [+0.20 ± 0.64]) and microgrooved (subcrestal [−0.48 ± 0.25] > epicrestal [−0.13 ± 0.54] > supracrestal [+0.33 ± 0.58]) abutments. However, these differences failed to reach statistical significance. Conclusions The insertion depth may have a direct influence on crestal bone-level changes at both types of abutments investigated. [ABSTRACT FROM AUTHOR]
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