Which of the following is not true, regarding abutment selection for overdenture  fabrication?: (A) Abutment should have healthy periodontal tissues, (B) If bone loss is present, teeth should not be selected as overdenture abutments, (C) A circumferential band of attached gingiva should be present, (D) If a tooth has grade III mobility, it should not be selected as overdenture abutment
Answer is B. If mild to moderate bone loss is present, change in crown:root ratio can make the tooth suitable as an overdenture abutment.