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Comparison of surface roughness parameters Ra/Sa and Rz/Sz with different measuring devices.
Rosentritt, Martin; Schneider-Feyrer, Sibylle; Kurzendorfer, Laura.
Afiliación
  • Rosentritt M; Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany. Electronic address: martin.rosentritt@ukr.de.
  • Schneider-Feyrer S; Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany.
  • Kurzendorfer L; Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany.
J Mech Behav Biomed Mater ; 150: 106349, 2024 02.
Article en En | MEDLINE | ID: mdl-38169209
ABSTRACT

OBJECTIVES:

The aim of this in-vitro study was to investigate the influence of the measuring devices (mechanical and optical) on the surface values Ra/Sa and Rz/Sz of different materials and machined surfaces. MATERIAL AND

METHODS:

Mechanical (contact profilometry (CP) Perthometer S6P, Perthen Mahr, G) and optical (scanning electron microscope (SEM) Phenom, FEI, NL; confocal 3D laser scanning microscope (CLSM) VK-100, Keyence, J) measuring devices were used to determine the surface roughness Ra/Sa and Rz/Sz. Glass-ceramic (Empress, Ivoclar-Vivadent, FL), zirconia (Cercon HT, Dentsply, D), composite (Grandio, Voco, D), denture base material (Palapress, Kulzer, D) and titanium (grade 4) were investigated (n = 10 measurements) after surface finishing sandblasting (Al2O3; 250 µm), diamond treatment (80 µm; wet), sandblasting (Al2O3; 50 µm), and polishing (grit of 4000; wet; Tegramin-25, Struers, D). STATISTICS Shapiro-Wilk, ANOVA, Bonferroni post-hoc tests (α = 0.05).

RESULTS:

Surface characteristics Ra/Sa and Rz/Sz, which were detected with mechanical and optical measuring devices on different materials and surface finishing, showed significant (p ≤ 0.001, ANOVA) differences. Significant (p ≤ 0.045, Bonferroni) differences between CP, SEM and CLSM (line; area) were found, mainly for Ra/Sa.

DISCUSSION:

The surface roughness on different dental materials and differently machined surfaces were influenced by the individual mechanical and optical measuring devices. Optical methods measure a significantly higher roughness value for all materials and surface finishes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Diamante Idioma: En Revista: J Mech Behav Biomed Mater Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Diamante Idioma: En Revista: J Mech Behav Biomed Mater Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos