Features of acetone dynamic effects induced to acrylic teeth superficial layer: A time domain C scan (En Face) OCT new approach

The main reason of this study is mainly represented by the C Scan (En Face) OCT time domain investigation of acetone dynamic effects induced to the superficial layer of acrylic teeth. One of the organic solvents used in order to improve the adhesion of acrylic teeth to denture base resin is acetone. The ridge lap area of 20 acrylic second upper molars (Spofa Dental complete denture kit) was milled to flat. Afterwards the molars with the milled ridge lap area were cut in two halves. The artificial teeth were randomly assigned in 2 groups.: Group 1. (control) (without treatment), Group 2. Acetone treatment. The both sample groups were submitted to OCT C Scan (En Face) investigation for 200 seconds. The both sample groups were also submitted to SEM (Scanning Electron Microscopy) nondestructive investigation. The dynamical changes of acrylic teeth superficial layer induced by acetone, among which the superficial layer hardening, were captured with C Scan OCT, proving the fact that time domain C scan OCT could be used in order to investigate the dynamics of the effects of this organic solvent to the polymeric acrylic teeth substrate.