Which factor is NOT considered when determining the depth of submarginal incisions?

The determination of the depth of submarginal incisions in periodontal surgeries takes into account various anatomical and physiological factors to ensure adequate access and healing while minimizing complications. One factor that is not considered is the patient's age.

While age can influence factors such as healing and general health, it does not directly impact the specific characteristics of the gingival or osseous anatomy that are critical in surgical planning. Other factors, like transgingival probing measurements, are essential as they assess the existing periodontal pocket depth and help determine how deep the incision should be to effectively reach the underlying tissue. The width of keratinized tissue is also significant because it influences the stability of the gingival margin after surgery, and the depth of the palatal vault is relevant for affecting the location and positioning of incisions in that area.

Therefore, the patient's age does not directly affect the technical aspects of deciding incision depth, making it the correct answer to the question regarding which factor is not considered.