Tips From Our Readers
A technique to facilitate the prosthetic rehabilitation of oropharyngeal defects by combining an intraoral scanner with a conventional impression
Digital techniques for fabricating obturators have been described.1-3 However, digital technology is difficult to integrate into their fabrication because of imperfections in the printed casts.4 In addition, the required equipment or even software-editing expertise may not be available for dentists worldwide. Londono et al4 recently published a step-by-step technique for fabricating obturator prostheses by using a chairside digital scanner and conventional impressions. However, the demarcation described between the printed cast and the bulb portion, from a conventional impression used to generate a definitive cast, raises some concerns about the complexity of the technique, specifically, whether definitive casts can be combined easily.Technique for preserving pupil size when photographing the iris for ocular prostheses
The artificial iris of an ocular prosthesis should closely reproduce the patient’s natural iris. The traditional methods used to fabricate artificial irises typically include oil paints and cardboard. These techniques are time-consuming procedures that require strong technical and artistic abilities. Reproducing the iris by printing high-quality digital images should be a straightforward and time-saving process that closely reproduces the patient’s iris and requires minimal adjustment. However, we noticed that the size of the pupil varies according to the light conditions.
