A mandibular central incisor (3.1) has 3 mm of buccal recession. Buccal clinical attachment loss is 4 mm and interproximal attachment loss is 2 mm. How is this recession classified in the system adopted by the 2017 World Workshop?

  • Correct answer

    Recession type 2 (RT2)

  • Recession type 1 (RT1)

  • Recession type 3 (RT3)

  • Miller Class I

This question is one of 15 in AFK practice: Periodontics. Test yourself on all of them.

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Explanations

  • The 2017 workshop adopted the Cairo classification: RT2 has interproximal attachment loss less than or equal to buccal attachment loss. RT1 has no interproximal attachment loss, and RT3 has interproximal loss greater than buccal loss.

    Source: Cortellini and Bissada, Mucogingival conditions in the natural dentition (2017 World Workshop) — oneguy

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