Investigation of Elastomer Infiltration into 3D Printed Facial Soft Tissue Prostheses
- *Corresponding Author:
- Julian M Yates
Professor of Oral & Maxillofacial Surgery
The University of Manchester
Room 1.012 - School of Dentistry
Coupland III Building, Coupland Street
Manchester, M13 9PL, UK
Tel: 0044 (0)1612756865
Fax: 0044 (0)1613061565
E-mail: [email protected]
Received Date: June 04, 2014; Accepted Date: November 13, 2014; Published Date: November 18, 2014
Citation: Zardawi FM, Kaido X, Noort R, Yates JM (2015) Investigation of Elastomer Infiltration into 3D Printed Facial Soft Tissue Prostheses.Anaplastology 4:139. doi:10.4172/2161-1173.1000139
Copyright: © 2015 Zardawi FM et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Objectives: 3D colour printing, a method of additive manufacturing, has been developed and utilised to produce facial soft tissue prostheses. This was achieved by layered fabrication of a biocompatible powder held together by an aqueous binder containing a resin and coloured inks, followed by infiltration with a medical grade silicone polymer. The aim of this study was to investigate the elastomer infiltration depths within the 3D printed models. Methods: Three sets of 30 cubes ? 20x20x20 mm ? were used to investigate the infiltration depth of Sil-25 maxillofacial silicone polymer (an MSP) under atmospheric pressure, 2 bar and 3 bar pressure for 5, 10, 15, 20 and 25 min. The investigation was also repeated with two other MSPs ? Promax-10 and M-3428 ? under 3 bar pressure. Following infiltration, the cubes were bisected, the internal aspects stained with dye, and the infiltration depth measured using a travelling microscope. Infiltration quality was also assessed using scanning electron microscopy (SEM). Results: At standard atmospheric pressure, the maximum infiltration depth of Sil-25 was 1.45 mm after 25 min. However, after 25 min at 2 and 3 bars pressure, the infiltration depth increased to 3.9 mm and 8.7 mm, respectively. At 3 bars the infiltration depth of Promax-10 and M-3428 was 2.4 mm and 7.5 mm, respectively. In all samples SEM revealed a disorganised distribution of starch particles within the MSP infiltrate. Significance: Pressure significantly increased the infiltration rate and depth of the MSPs within 3D printed constructs. The infiltration depth obtained is sufficient for prostheses that are less than 16 mm thick.