When it comes to facial fillers, there is no one-size-fits-all answer to how long they last. Fillers that use hyaluronic acid can range from three months to more than two years, according to Dr. Devgan. However, there are a few things you can do to increase the time between treatments.
Fortunately, most fillers on the market are low maintenance and some of the worst fears people have about long-term use are unfounded. Some brands of dermal fillers estimate that fillers only last 6 to 12 months, so Dr. Gavin Chan referred his patients for magnetic resonance imaging (MRI) to his colleague Dr. Mobin Master (MBBS FRANZCR).
When asking other aesthetic doctors who regularly inject fillers, and then asking patients how long the fillers last, the answer is usually the same; 6, 12, or 18 months. Hyaluronic acid (HA) fillers are the most commonly used because of their safety, easy reversibility and minimal side effects. The distribution of Facial Fillers is characteristic and depends on the anatomy of the superficial fat compartments. It's important to note that you can enjoy visible facial rejuvenation or contouring results for longer than the duration of the specific filler injected.
The number of people undergoing facial filler injections for a youthful glow has increased dramatically over the past decade. Unfortunately, with the rise in popularity of dermal filler treatment and the growing number of clinics offering “reduced price” dermal treatments with poor injection technique, people receive too much filler injected into a particular area, such as the lips, leading to a duck-like bump. A radiologist may be asked to evaluate the complications, extent, and location of a known facial filler injection. Although all types of injectable fillers cause fibrous body formation (FBG), FBG is most commonly seen after prolonged injection of silicone oil (“siliconoma”, especially with non-medical grade silicone), whereas fillers such as HA have a low incidence of FBG.
According to Dr. Mobin Master, dermal fillers can last much longer than dermal filler brands say. Most fillers can perform well in this area, but hyaluronic acid fillers can dissolve if accidentally injected into a blood vessel (a rare complication). Understanding the imaging characteristics of facial fillers and their complications helps to avoid misinterpretation of MRI and PET-CT scans and facilitates therapeutic decisions in unclear clinical cases. An atypical anatomical location for facial filler injection or migration and restricted diffusion in DWI warrant histopathological correlation to exclude malignancy and other dermatological conditions.
