Which class in Miller's classification indicates that the recession extends to the mucogingival junction with severe interdental bone loss?

Miller's classification system is widely used to categorize gingival recession based on the extent of tissue loss and the underlying conditions. Class IV is specifically defined by recession that extends to the mucogingival junction while also being accompanied by severe interdental bone loss.

This class signifies not just the presence of recession but also highlights that the periodontal support in the area is significantly compromised, which can lead to various complications in treatment planning and outcomes.

In Class IV, the functional and aesthetic implications are profound, as the lack of adequate gingival tissue and the bone loss can greatly affect both restorative options and overall periodontal health. Understanding this classification helps practitioners evaluate the complexity of the situation and devise appropriate treatment strategies.

The other classes in Miller's classification denote varying degrees of recession without the same degree of associated bone loss seen in Class IV, making it important for clinicians to recognize the distinctions in order to effectively manage each case.