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Table of Contents
Vol. 55, No. 2, 2003
Issue release date: April 2003

Surface Area of the Human Vagina as Measured from Vinyl Polysiloxane Casts

Pendergrass P.B. · Belovicz M.W. · Reeves C.A.
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Abstract

Sixty-two vinyl polysiloxane casts from subjects in the lying, supine position were measured for surface area with five shapes: conical, parallel sides, heart, slug, and pumpkin seed being included. The surface areas ranged from 65.73 to 107.07 cm2 with a mean of 87.46 cm2 and a standard deviation of 7.80 cm2. There were no significant differences in surface area among the shape groups. And no correlations with surface area were found by parity or by rod length, introital diameter, posterior length of casts as measured with string, or greatest width and greatest depth of casts. 70% of the casts had a surface area of 84.50 cm2 or above, and 90% had a surface area of 77.72 cm2 or above. Variation within the interquartile range (75th to 25th percentile) was ±5.2% of the median.



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References

  1. Pendergrass P, Reeves C, Belovicz M, Moulter D, White J: The shape and dimensions of the human vagina as seen in three-dimensional vinyl polysiloxane casts. Gynecol Obstet Invest 1996;42:178–182.
  2. Pendergrass P, Reeves C, Belovicz M, Moulter D, White J: Comparison of vaginal shapes in Afro-American, Caucasian and Hispanic women as seen with vinyl polysiloxane casting. Gynecol Obstet Invest 2000;50:54–59.
  3. Phillips D, Maguire R: The development of microbicides for clinical use to prevent sexually transmitted diseases. Curr Infect Dis Rep 2002;4:135–140.
  4. Simoes J, Citron D, Aroutcheva A, Anderson R Jr, Chany C 2nd, Waller D, Faro S, Zaneveld L: Two novel microbicides (polystyrene sulfonate and cellulose sulfate) inhibit Gardnerella vaginalis and anaerobes commonly associated with bacterial vaginosis. Antimicrob Agents Chemother 2002;46:2692–2695.
  5. Forbes A, Heise L: What’s up with nonoxynol-9? Reprod Health Matters 2000;8:156–159.
  6. Fichorova R, Tucker L, Anderson D: The molecular basis of nonoxynol-9-induced vaginal inflammation and its possible relevance to human immunodeficiency virus type 1 transmission. J Infect Dis 2001;184:418–428.


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