Bone Resorption of Hyaluronic Acid Fillers Injection Induced in Chin Augmentation: A Retrospective Study

Area of Science:

• Plastic Surgery
• Dermatology
• Radiology

Background:

• Hyaluronic acid (HA) is a popular, generally safe filler for facial contouring.
• Complications from HA fillers, including bone erosion, have been reported but lack robust data.
• This study investigates HA injection-induced bone resorption in chin augmentation.

Purpose of the Study:

• To describe the clinical characteristics of bone resorption after HA filler injections in the chin.
• To evaluate the incidence and morphology of HA-related bone changes in the mentum.

Main Methods:

• Retrospective analysis of CT scans from 8 patients who underwent HA chin augmentation.
• Measurement of bone resorption area (length, width, depth) in the incisive fossa.
• Recording of injection volume, number of injections, and complications.

Main Results:

• CT scans revealed significant deep concavities in the incisive fossa post-HA injection.
• No periapical lesions, infections, or hematomas were observed in the study cohort.
• No clinical symptoms were reported by patients following HA filler injections.

Conclusions:

• Bone resorption in the chin area is a potential complication following hyaluronic acid filler injections.
• Additional well-designed clinical trials are necessary to confirm the occurrence and prevalence of this phenomenon.