Final answer:
Soft tissue pockets can be reduced by open flap curettage and guided tissue regeneration, but not by occlusal adjustment or scaling and root planing (debridement).
Step-by-step explanation:
Soft tissue pockets cannot be reduced by occlusal adjustment. Occlusal adjustment involves reshaping the biting surfaces of the teeth to improve the alignment and balance of the bite. It does not directly address soft tissue pockets.
Scaling and root planing (debridement) is a deep cleaning procedure that removes plaque and calculus from below the gumline. While it helps to reduce inflammation, it may not be enough to completely eliminate soft tissue pockets.
Open flap curettage is a surgical procedure where the gum tissue is folded back to allow deep cleaning of the tooth roots. It is performed to reduce the pocket depth and remove diseased tissue. This procedure can help reduce soft tissue pockets.
Guided tissue regeneration involves the placement of a barrier membrane to support the growth of specific tissues and prevent the migration of unwanted cells. It can be used to help regenerate bone and gum tissue, which may aid in reducing soft tissue pockets.