408) Which of the following statements regarding injectable bovine collagen is TRUE?
A. Zyderm I contains 6.5% concentration of collagen.
B. Zyderm II contains 3.5% concentration of collagen.
C. Zyplast contains collagen cross-linked with butylaldehyde.
D. Zyderm I will require overcorrection of 60 %.
E. Zyplast will not require overcorrection.
REFERENCES & ANSWER
Lattyak B. V., Catten M., Maas C. S.: Minimally Invasive Techniques for Rejuvenation of the Male Face, Male Aesthetic Surgery, Facial Plastic Surgery Clinics of North America, Vol. 7 No. 4, November 1999, p. 512
Maas C. S., Yu K. C. Y., Egan K. K.: Neuromodulators and Injectable Soft Tissue Substitutes, Chapter 31, Facial Plastic and Reconstructive Surgery, Thieme Medical Publishers, Third edition (Ira Papel, editor) pp. 337-353, 2009
408) E Zyplast will not require overcorrection.
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