<prompt> Radiographic finding of tooth shows radiolucency reaching the middle 13rd of dentin. Based on radiographic finding, this tooth will be categorised as ___ according to latest ICCMS guidelines.RA2RA3RC5RB4  <response>: The ICCMSTM classifies tooth surfaces radiographically as follows: modified from Agustdottir et al ; Ekstrand et al 22.0 No radiolucency.RA: Initial stages1 radiolucency in the outer 12 of the enamel 2 radiolucency in the inner 12 of the enamel EDJ enamel-dentin junction this stage is recommended for restorative care in the US, if the radiolucency touches the EDJ3 radiolucency limited to the outer 13 of dentin in some countries, especially the US, this stage is classified as moderate.RB: Moderate stages4 radiolucency reaching the middle 13 of dentin.RC: Extensive stages5 radiolucency reaching the inner 13 of dentin, clinically cavitated6 radiolucency into the pulp, clinically cavitated.ICCMSTM Caries Risk Likelihood Matrix 