Is Dermabrasion Effective for Deep Acne Scars?

Dermabrasion is quite effective for acne scarring, especially for the relatively shallow scars you describe. However, if you have an Asian skin type, special care must be taken to avoid sun exposure before, and after the procedure because of the risk of postoperative hyperpigmentation. I would also recommend use of topical 4% hydroquinone to minimize the risk of postoperative hyperpigmentation

You'll see a lot of variation with answers to questions like this. Most people will either not recommend dermabrasion or add an additional type of treatment to the dermabrasion. 

This is largely in part to the fact that dermabrasion is no longer a regular part of training for many specialties, including dermatology, facial plastic surgery, and plastic surgery; having been replaced by chemical peels and laser resurfacing. 

The reason for this is that dermabrasion is difficult to do correctly, either staying too superficial and not getting the result you want, or going too deep and making the scar worse. 

Personally, I believe dermabrasion remains an excellent option for focal acne scarring. 

Ask your physician about their background with dermabrasion and comfort level with it. Chemical peels and laser resurfacing remain excellent options for fine lines and wrinkles, but are not as effective for focal scarring compared to dermabrasion.