In a tooth with complete pulpal necrosis, the periradicular region is affected if
there is pain on percussion.
there is no response to an electric pulp test.
the tooth throbs when the patient is lying down.
there is pain to thermal stimuli.
1 explanations
TALHA_03
this is incorrect. percussion test do not indicate necrosis. Answer is thermal test, as heat test will lead to pain due to expansion of gases on applying heat on necrosed tooth. Theses gases are produced by necrotic pulp. However the cold test would be negative.
TALHA_03