Pilot Study Examining the Safety and Efficacy of Calcium Hydroxylapatite Filler With Integral Lidocaine Over a 12-Month Period to Correct Temporal Fossa Volume Loss

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Abstract

BACKGROUND

Age-related volume loss in the temporal fossae is due to thinning of the epidermis, loss of subcutaneous structural volume, and change in the bony architecture. Temporal concavities are important areas of 3-dimensional volume restoration. The temporal fossae is becoming an increasingly popular area for patients seeking soft tissue augmentation with injectable fillers such as calcium hydroxylapatite with integral lidocaine [CaHA (+)].

OBJECTIVE

This pilot study aims to define the safety, efficacy, technique, and patient-reported outcomes for injectable CaHA (+) to correct volume loss in the temporal fossae over a 12-month period.

MATERIALS AND METHODS

This was a single-investigator, nonblinded study involving 20 participants. Participants received filler injection into their temporal fossae, with follow-up evaluations at Day 14, 6 weeks, and 3, 6, 9, and 12 months.

RESULTS

CaHA (+) results in statistically significant improvement in temporal fossae appearance lasting up to 12 months. Subjects reported “moderate” global aesthetic improvement over the 12-month period.

CONCLUSION

As the cosmetic field continues to advance, it is important for practitioners to have access to research regarding the efficacy and safety of injectables. These results show that CaHA (+) is an effective and safe option to correct temporal fossae volume loss associated with high patient satisfaction.

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