<prompt> In the permanent dentition, earliest radiographic changes noted after chronic pulpal infection is:Root resorption.PDL widening.Changes in bony furcation area.All of the above.  <response>: In primary molar teeth, earliest radiographic change is in the form of a furcal radiolucency, bone loss or root resorption, depending on the chronicity of the infection.In permanent teeth, earliest change is widening of PL. 