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    What is a dermatologic surgeon?

    Part of a progressive medical subspecialty, ASDS member dermatologists perform medically necessary and cosmetic procedures to improve the health, function and beauty of skin through every stage of life.

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    From forehead furrows to frown lines…

    Performing more than 5 million cosmetic procedures each year, ASDS member dermatologists offer many treatments that are less intense, safer and have quicker recovery times than ever before.

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    3 million Americans are diagnosed with skin cancer every year

    Any suspicious new growths or changes should be examined by a dermatologist immediately. ASDS member dermatologists are trained to select the best treatment choice based on the individual patient.

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    From excess fat to wrinkles…

    Offering a range of office-based cosmetic procedures, ASDS member dermatologists can select the appropriate treatment choice to meet your individual goals.

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In This Section

Injectable Polymethylmethacrylate + Bovine Collagen Filler

What is injectable polymethylmethacrylate + bovine collagen?  

Injectable polymethylmethacrylate (PMMA) with bovine collagen is known as Bellafill. The FDA approved PMMA in 2006 to treat nasolabial folds, “smile lines”. This product recently received its FDA approval for improving the appearance of moderate to severe, atrophic, distensible facial acne scars on the cheeks. This makes it the only FDA approved injectable filler for acne scars.  

As we age, the fat, muscles, bone, and skin in our face begins to thin. This loss of volume leads to either a sunken or sagging appearance of the face and increased facial wrinkles and folds. Some patient with inflammatory or nodular cystic acne may develop acne scars. Atrophic acne scars are depressed scars, which develop at sites of prior, severe acne inflammation. PMMA + bovine collagen has not been studied in ice-pick acne scars or sinus tracts. Prior to its approval, other treatments used for acne scarring included laser resurfacing procedures, chemical peeling, or dermabrasion. 

The microspheres containing PMMA induce your skin to produce its own collagen, which can last up to 5 years. It also contains bovine, cow, collagen for immediate improvement. Given the bovine collagen component, a skin test must be performed at least 2-4 weeks before any injections with PMMA product. This test is performed in order to detect an allergy to the bovine collagen component.  

Your doctor will evaluate the areas of your face needing improvement. Topical medication may be used for added comfort prior to your procedure. One or two treatment sessions with PMMA are needed to achieve optimal correction, which are often spaced at one month interval. The effects of PMMA can last up to 5 years.  

What should first be done before considering injectable polymethylmethacrylate + bovine collagen?  

First, an ASDS dermatologist will review the patient’s medical history and examine the condition to be treated. Areas to be treated should be kept clean. If there is a skin infection, then treatment needs to be postponed until it resolves. Patients who take blood thinners (such as aspirin, ibuprofen, certain herbal medications) should stop them two weeks prior to injection with the approval of their prescribing doctor. 

When is injectable polymethylmethacrylate + bovine collagen appropriate?  

PMMA +collagen can be used to treat 

  • Wrinkles
  • Nasolabial folds 
  • Atrophic acne scars on the cheeks 

Where is injectable polymethylmethacrylate + bovine collagen not appropriate? 

  • Lips 
  • Close to the eyes 
  • Fine lines around the mouth 

Who is not a candidate for polymethylmethacrylate + bovine collagen?  

PMMA + collagen is not recommended for patients who have: 

  • A positive skin test to bovine collagen 
  • Current oral or facial herpes 
  • Active infection or acne in the treatment area 
  • Uncontrolled diabetes 
  • Blood-clotting problems 
  • Lupus or other connective tissue disorders 
  • Allergy to any components of PMMA + bovine collagen 
  • Severe allergies, such as anaphylaxis 
  • Allergy to any bovine collagen containing products, such as injectable collagen, collagen implants, hemostatic collagen, and/or collagen-based sutures 
  • Patients undergoing or planning to undergo desensitization to meat products that contain bovine collagen 
  • Patients whom are pregnant or breast-feeding 

Is injectable polymethylmethacrylate + bovine collagen painful?   

Topical numbing agents are sometimes applied to ease discomfort. Also, lidocaine is added to this product for improved patient comfort. Before and following treatment, ice may be given to ease discomfort and swelling.  

What are the complications or potential side effects of injectable polymethylmethacrylate + bovine collagen?  

Common side effect include: 

  • Swelling 
  • Bruising 
  • Bleeding 
  • Lumps and bumps 
  • Itching 
  • Redness 
  • Discoloration 

Uncommon side effects include: 

  • Numbness 
  • Allergic reactions – which may appear immediately, months, or years later 
  • Infection 
  • Blisters and cysts 
  • Inflammatory reactions – which may appear immediately, months, or years after injection 
  • Migration of filler material to another site 
  • Vascular occlusion 
  • Scarring 
  • Blindness 

What can I expect after having had PMMA?  

PMMA filler may last up to five years, depending on the patient.  

For more information and referrals  

For more information on skin conditions and treatments, along with a list of ASDS members in your state, please visit the find a dermatologic surgeon section of our website. 


 

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