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.
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.