Comparative Evaluation of Two Impression Techniques of the Anophthalmic Socket

Elcio Ricardo MIYASHITA, Teresa Camargo de CASTRO, Beatriz Silva Câmara MATTOS, Antonio Carlos Lorenz SABÓIA

Abstract


Objective: An excellent adaptation of the ocular prosthesis to the walls of the anophthalmic socket is fundamental to attain a good mobility of the artificial eye, a primordial aspect in dissimulating the artificial aspect of the prosthesis. This study compares the direct syringe impression technique to the impression taked with syringe and acrylic stock tray in a group of 15 patients submitted to eye enucleation.
Methods: The study groups were established according to the impression technique employed and evaluated by means of specimens made of heat polymerizing resin in relation to transversal diameter, vertical diameter and area. The specimens were submitted to a stereoscopic glass and the images generated by a digital camera were processed by the software ImageLab 2000®.
Results: The Wilcoxon rank-signed test (p≤0.05) showed that the transversal diameter was similar in both impression techniques. However, the smaller vertical diameter provided by the direct syringe technique was statiscally significant (p≤0.05). The area of the mucous surface of the anophthalmic socket registered during the impression taken with syringe and acrylic tray was significantly larger (p≤0.05).
Conclusion: The syringe and acrylic tray impression technique provides a better distribution of the impression material, mainly in the supero-inferior direction, and this accounts for the larger contact of the prosthesis with the mucous surface. Considering that the mobility of the ocular prosthesis is dependent of a good adaptation of the prosthesis on the mucous surface, the syringe and acrylic tray impression technique shall improve the mobility and aesthetics of ocular prosthesis.

Keywords


Enucleação ocular; Anoftalmia; Olho artificial



DOI: http://dx.doi.org/10.4034/pboci.v11i3.1466

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