Which procedure removes defects and restores the normal contour of bone?

The procedure that effectively removes defects and restores the normal contour of bone is osseous surgery. This type of surgical intervention focuses on reshaping and repairing the bone structure, particularly in cases of periodontal disease where the supporting bone around teeth may be damaged. By addressing these defects, osseous surgery aids in reestablishing the foundation of the teeth, promoting better health and stability in the oral cavity.

In contrast, gingivectomy involves the removal of gum tissue to eliminate diseased areas, which does not directly address bone structure. Gingivoplasty is a procedure that reshapes the gingival tissue for cosmetic purposes rather than correcting bone deformities. A frenectomy is the surgical removal of the frenum, a fold of tissue that may restrict movement in the mouth, but it does not involve altering or restoring bone. These distinctions highlight why osseous surgery is the appropriate choice for restoring bone contour and integrity.