Fabrication of a Wax Ear by Rapid-Process Modeling Using Stereolithography

Trevor J. Coward*, Roger M. Watson, Ian C. Wilkinson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)


Purpose: The purpose of this article is to describe an automated technique that creates a mirror-image wax model of the contralateral ear using a rapid prototyping technique, which allows precise positioning and adaptation to the deficient side of the face. Materials and Methods: Magnetic resonance images (MRI) are taken of the face and then digitized and reformatted into a 3-dimensional image. The image of the normal ear is extracted, mirrored, and positioned onto the image of the deformed side of the face. The digitized data, when used in conjunction with stereolithography, produces a photopolymerized resin model ear. A model wax ear is created by pouring molten wax into a silicone mold of the resin model ear. Results: A model wax ear of identical dimensions, shape, and internal contouring as the contralateral normal ear is created. The technique allows the undersurface of the model wax ear to be precisely positioned against the surface contours of the deformed side of the face in 1 patient. Conclusion: The use of stereolithography from MRI scan data is a suitable technique for producing a model wax ear that fits the deformed side of the face. The 3-dimensional computer image of the face may also be used to plan the position (level and protrusion) of the ear.

Original languageEnglish
Pages (from-to)20-27
Number of pages8
JournalInternational Journal of Prosthodontics
Issue number1
Publication statusPublished - 1 Jan 1999


Dive into the research topics of 'Fabrication of a Wax Ear by Rapid-Process Modeling Using Stereolithography'. Together they form a unique fingerprint.

Cite this