In the permanent dentition, earliest radiographic changes noted after chronic pulpal infection is:
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.
Root resorption.
PDL widening.
Changes in bony furcation area.
All of the above.