How can I avoid getting dents after liposuction?

Thanks for the question, as the body is settling after surgery surface irregularities are normal as the scar tissue is settling. Things you can do to help prevent permanent asymmetries is to make sure your garment does not have a firm fold in it that is digging into your skin, that your garment is of appropriate size, use of post operative radio frequency treatments to speed up softening and smoothing of scar tissue

Dear Karla16,if your surgery was performed carefully and if you follow your surgeon's post-surgery protocol you probably won't have any major issue.  You should wear your compression garment as instructed. Minor irregularities will reshape in the next few months. If you have any concerns, please consult with your plastic surgeon.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery 
Member, Am. Society of Plastic Surgery

I recommend following up with your Doctor about their after care protocol following your procedures. For liposuction after care, I recommend adding hyperbaric oxygen and lymphatic massage along with your compression to help decrease swelling. To improve your final results, I also recommend adding vanquish for further fat removal, exilis/venus legacy for skin tightening, cellutone/z wave to make the skin smooth, remove scar tissue, and improve the skin’s appearance. See an expert. Best, Dr. Emer