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- Title
Efectividad de las prótesis intrabucales protectoras emplomadas en teleterapia y braquiterapia.
- Authors
Sánchez-Rubio Carrillo, Raúl Armando; Estrada Esquivel, Blanca Estela; de Lima Moreno, Javier; Montalvo Ramírez, Gustavo; Rosales Ibáñez, Raúl; Sánchez-Rubio Carrillo, Ricardo Manuel
- Abstract
Background: We present early-stage in vitro evidence supporting the hypothesis that 2-3 mm lead plaques used as shielding in prosthesis for the radiotherapy in head-and-neck cancer patients help reduce deposit dose in healthy or at risk organs. Purpose: To test the effect of lead in reducing therapeutic radiation. Methods: In vitro tests were performed with two 1 mm x 5 cm x 5 cm lead plates on a Gafchromic RQTA2 "10 x 10" chromic film. 6 MeV energy doses of 192 cGy applied with a linear accelerator as a fraction of applicable doses of teletherapy to test contact. Likewise, 168 MeV Iridium 192 (brachytherapy) were used for a 300 cGy dosis under a cover of solid water (2 cm thick polymer with the same density as water). Similar tests were performed without the lead protection in both cases (open field) as a control. Results: The density readings of the films showed, for the treatment with 2 mm lead Iridium 192, an increased difference of radiation of 7.25% compared to the open field. The treatment with linear accelerator with 6 MeV energy and 2 mm lead increased 16.25% compared to the open field.
- Publication
Universitas Odontológica, 2014, Vol 33, Issue 71, p59
- ISSN
0120-4319
- Publication type
Article
- DOI
10.11144/Javeriana.uo33-71.epip