Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing
This in-vitro study investigates the bonding interfaces reached by the conditioning of a splint material additively manufactured by digital light processing (AM base) as well as the shear bond strength (SBS) of resins bonded to these surfaces (repair material). Therefore, the AM base was either stor...
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doaj-a05957929e1546e6bbb325022d4ac81d2021-07-23T13:51:46ZengMDPI AGMaterials1996-19442021-07-01143935393510.3390/ma14143935Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without AgeingEbru Kuscu0Andrea Klink1Sebastian Spintzyk2Pablo Kraemer Fernandez3Fabian Huettig4Department of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, GermanyDepartment of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, GermanySection Medical Materials Science and Technology, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, GermanyDepartment of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, GermanyDepartment of Prosthodontics, University Clinic of Dentistry, Oral Medicine, and Maxillofacial Surgery with Dental School, Tuebingen University Hospital, Osianderstr. 2–8, 72076 Tübingen, GermanyThis in-vitro study investigates the bonding interfaces reached by the conditioning of a splint material additively manufactured by digital light processing (AM base) as well as the shear bond strength (SBS) of resins bonded to these surfaces (repair material). Therefore, the AM base was either stored in dry for 12 h or wet environment for 14 days to simulate ageing by intraoral wear. The dry and wet group was bonded after physical and/or chemical conditioning to cylinders made from polymethylmethacrylate or four novel polymers allowing splint modifications. Blasted and methylmethacrylate (MMA)-conditioned Polymethylmethacrylate (PMMA) bonded to PMMA acted as the gold standard. The surface profiles revealed highest differences of Ra towards the gold standard in AM base conditioned with other than MMA after sandblasting. The adhesively bonded repair materials of the wet AM base were further aged in wet environment for 14 days. The SBS of the gold standard (25.2 MPa and 25.6 MPa) was only reached by PMMA bonded to blasted and MMA-conditioned AM base after dry (22.7 MPa) and non-conditioned after wet storage (23 MPa). Four repair materials failed to reach the threshold of 5 MPa after dry storage and three after wet storage, respectively. Non-conditioned AM base revealed the highest risk for adhesive fractures when using other resins than PMMA.https://www.mdpi.com/1996-1944/14/14/3935mechanical propertiessurface characteristicsadditive manufacturingfailure modelight curing resin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ebru Kuscu Andrea Klink Sebastian Spintzyk Pablo Kraemer Fernandez Fabian Huettig |
spellingShingle |
Ebru Kuscu Andrea Klink Sebastian Spintzyk Pablo Kraemer Fernandez Fabian Huettig Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing Materials mechanical properties surface characteristics additive manufacturing failure mode light curing resin |
author_facet |
Ebru Kuscu Andrea Klink Sebastian Spintzyk Pablo Kraemer Fernandez Fabian Huettig |
author_sort |
Ebru Kuscu |
title |
Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing |
title_short |
Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing |
title_full |
Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing |
title_fullStr |
Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing |
title_full_unstemmed |
Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing |
title_sort |
bonding interface and repairability of 3d-printed intraoral splints: shear bond strength to current polymers, with and without ageing |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-07-01 |
description |
This in-vitro study investigates the bonding interfaces reached by the conditioning of a splint material additively manufactured by digital light processing (AM base) as well as the shear bond strength (SBS) of resins bonded to these surfaces (repair material). Therefore, the AM base was either stored in dry for 12 h or wet environment for 14 days to simulate ageing by intraoral wear. The dry and wet group was bonded after physical and/or chemical conditioning to cylinders made from polymethylmethacrylate or four novel polymers allowing splint modifications. Blasted and methylmethacrylate (MMA)-conditioned Polymethylmethacrylate (PMMA) bonded to PMMA acted as the gold standard. The surface profiles revealed highest differences of Ra towards the gold standard in AM base conditioned with other than MMA after sandblasting. The adhesively bonded repair materials of the wet AM base were further aged in wet environment for 14 days. The SBS of the gold standard (25.2 MPa and 25.6 MPa) was only reached by PMMA bonded to blasted and MMA-conditioned AM base after dry (22.7 MPa) and non-conditioned after wet storage (23 MPa). Four repair materials failed to reach the threshold of 5 MPa after dry storage and three after wet storage, respectively. Non-conditioned AM base revealed the highest risk for adhesive fractures when using other resins than PMMA. |
topic |
mechanical properties surface characteristics additive manufacturing failure mode light curing resin |
url |
https://www.mdpi.com/1996-1944/14/14/3935 |
work_keys_str_mv |
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