Physiochemical Characteristics of Calcium Hydroxylapatite (CaHA)

Publication Date

2018

Journal Title

Aesthet Surg J

Abstract

© 2018 The American Society for Aesthetic Plastic Surgery, Inc. The clinical performance of fillers in soft tissue augmentation depends upon their physiochemical properties, anatomical areas injected, interaction with the recipient, and the skill and experience of the physician. Scientific measures of filler properties facilitate appropriate selection of treatments for optimal treatment outcomes, and inform adjustments to treatments that improve patient safety and aesthetic outcomes. The rheological properties of calcium hydroxylapatite (CaHA), elastic modulus (G') and viscosity, coupled with its capacity to offer both immediate results and continued stimulation of collagen type I deposition, support its distinction as an ideal treatment for the volume loss characteristic of aging. Furthermore, the comparatively higher G' of CaHA offers a physiochemical basis for the clinical performance observed by the authors, especially in regions such as the temple and chin, where the force exerted by CaHA against bone permits expansion of overlaying tissue, permitting it to behave as a liquid implant.

Volume Number

38

Pages

S8 - S12

Document Type

Article

Status

Faculty

Facility

School of Medicine

Primary Department

Surgery

PMID

29897516

DOI

10.1093/asj/sjy011

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