Answer :
Final answer:
Explanation of diagnostic testing, control tooth use, pain control methods, and tooth restoration in root canal treatments.
Explanation:
Diagnostic testing: The dentist will perform a combination of tests like percussion testing, palpation, thermal testing, and possibly use of an electric pulp tester or cold testing to evaluate the pulp's condition.
Control tooth: The control tooth typically used during diagnostic evaluation is the contralateral tooth (in this case, tooth #29) which is healthy for comparison and reference.
Pain control: The endodontist may use local anesthesia such as lidocaine to alleviate stress and discomfort during the root canal procedure.
Tooth restoration: Tooth #20 would be completely restored using a dental crown after the root canal treatment. A general dentist or prosthodontist would likely complete this restoration.
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