Dual-porosity expanded polytetrafluoroethylene implants for lip, nasolabial groove, and melolabial groove augmentation.

Dual-porosity expanded polytetrafluoroethylene soft tissue implant: a new implant for facial soft tissue augmentation.

OBJECTIVE To illustrate problems observed with low-porosity expanded polytetrafluoroethylene soft tissue implants and to describe a new dual-porosity implant, the technique for insertion, and this author's preliminary experience. METHOD A review of 175 pieces of SoftForm (Collagen Corporation, Palo Alto, Calif) placed in 69 patients over 3 years was performed. Between October 1, 1997, and Sep...

Patient satisfaction with expanded polytetrafluoroethylene (Softform) implants to the perioral region.

OBJECTIVE To assess clinical results in patients undergoing implantation of expanded polytetrafluoroethylene (Softform) for perioral enhancement (melolabial fold, melomental fold, upper lip, and lower lip). DESIGN Fifty patients had undergone Softform implantation by a single surgeon. A retrospective telephone survey (25 questions) was conducted. Of 50 patients, 38 (76%) were contacted. The m...

Experimental Investigation of Porosity, Installation Angle, Thickness and Second Layer of Permeable Obstacles on Density Current

This study explored the effect of porosity and installation angle, thickness (dimension) and second layer of permeable obstacles on density current control and trapping in the laboratory. For this purpose, an insoluble suspended polymer and two types of groove and cavity obstacles made from plexiglass sheets were selected. The experiments were conducted with two different concentrations, five d...

Absence of the Labiomental Groove: A Common but Preventable Unpleasant Aesthetic Problem of the Lower Lip-Chin Burn Reconstruction

The use of expanded polytetrafluoroethylene in depressed deformities of the face

Expanded polytetrafluoroethylene (ePTFE) has been extensively used for facial soft tissue augmentation procedures, and is regarded as safe and reliable and suitable as a permanent implant. This implant is generally used in the lower third of the face for lips filling, nasal augmentation, nasolabial folds and chin augmentation, and rarely for congenital or acquired depressed deformities of the f...