The 15 questions for exercise GD569 are based on the article “Clinicopathologic features and treatment outcomes of marginal gingival (ring around the collar) leukoplakia: a systematic review of emerging evidence” on pages 34-43. This exercise was developed by Daniel S. Geare, DMD, in association with the General Dentistry Self-Instruction Committee.
Answers for this exercise must be received by August 31, 2027.