The effect of sterilization methods on the light transmission characteristics and structure of light-curing tips

Journal of Oral Rehabilitation
A KakabouraG Vougiouklakis

Abstract

The purpose of this study was to investigate the effect of various sterilization methods on the light transmission and the structural characteristics of two light-curing tips. Twenty tips from two light-curing devices [Elipar II (EL) and Heliolux II (HL)] were classified into four groups. The tips in groups A to C were subjected to sterilization with 0.2% sodium dichloroisacyanurate solution (Presept), 2% glutaraldehyde solution (Cidex) (2 h cycle(-1)) and water-steam autoclave (120 degrees C, 1 bar, 12 min cycle(-1)), respectively. A total of 2100 sterilization cycles was performed for all methods tested. The transmitted light intensity (TLI) was measured at specific sterilization time intervals by a curing radiometer (Model 100, Demetron). The final % TLI reduction of the sterilized tips was calculated relative to the corresponding control ones. The topography and composition of the front curing tip surfaces were determined using scanning electron microscopy combined with electron probe microanalyser. Autoclaving caused the lowest final TLI decrease (EL: 15%, HL: 19%) compared with Presept (EL: 60%, HL: 42%) and with Cidex (EL: 68%, HL: 52%). Cidex yielded higher TLI drop than Presept for both types of tips examined. Elipar t...Continue Reading

Citations

Nov 10, 2012·Journal of Applied Oral Science : Revista FOB·In-Nam HwangHoon-Sang Chang
Mar 9, 2011·Dental Materials Journal·Hiroyuki ArikawaSeiji Ban
Jun 22, 2013·Operative Dentistry·R B PriceW M Palin
Jul 23, 2020·International Dental Journal·Richard B PriceBraden Sullivan

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