LeadFIX

LeadFIX is a bioresorbable membrane pin made from polylactide. The clinical use of resorbable membranes for guided bone regeneration constitutes a new approach in dental surgery.


LeadFIX is a bioresorbable augmentation system used to fix membranes in position. Total membrane stability is an important pre-requisite for successful, guided bone regeneration. Application of the LeadFIX-augmentation system prevents any relative movement between the membrane and surrounding bone or membrane an mucoperiostal flaps.

It ensures an intact seal and smooth transition to the periosteum. The membrane becomes securely fixed in position over several months.

Indications

System:
The LeadFIX-membrane pin is a bioresorbable pin that is inserted into the bone. It is used to fix mebranes in place at the respective implantation sites.

Absorbability:
To absorb through his property in the body, eliminating the second surgery to remove the pins.

Figure 1: LeadFIX Pin in use during dental surgery.

Figure 2: Fixation of a membrane with degradable pins.

Material

The LeadFIX-membrane pin is a bioresorbable pin that is inserted into the bone. It is used to fix membranes in place at the respective implantation sites. The Membran-pin comprises osteosynthtic implant material and has proved to be an effective suture material. Biological degradition occurs throught hydrolysis to lactid acid, which is subsequently metabolised to CO2 and H2O.

Effect

Reduction in Pin strength and degradation:

After 6 - 7 months the mechanical strength of the LeadFIX-pin decreses. A process then begins, whereby respoption sets in and the volume of the pin is reduced. Pin degradation by hydrolysis leads to lactic acid formation. Lactic acid is metabolized to CO2 and H2O in the citrate cycle. The material is fully resorbed after 60 weeks.

The design of the pin ensures rapid, straightforward application and the long-term secure positioning of the pin throughout its lifespan. With a shaft diameter of < 1 mm, the membrane pin is an ideal material for secure fixing in surrounding bone.


The retention ridges on the shaft allow the membrane pin to sit firmly in the implantation site. Thanks to the smooth, lens-shaped head, the pin van be inserted simply using specially developed LeadFIX-instruments.

Application

Safety:
The bioresorbable LeadFIX - augmentation system is the answer to successful therapy.

  • No micro-movement of the membrane
  • Simple, straightforward procedure
  • No need for a second explantation procedure an therefore no damage to newly formed structures
  • The membrane pin cannot be accidently swallowed
  • Safe resorption of polylactide confirmed in clinical studies and histological examinations

Application and Handling technique:
LeadFIX-pins should only be used with the Leadfix instruments developed specifically for this purpose.

Figure 3: Surgical technique Pick up the membrane pins using the straight applicator.

Figure 4: Perforation of the buccal corticalis.

Figure 5: Use the probe with soft membranes.

Figure 6: Use the drilling and positioning guide on hard
membranes.

Figure 7: Inserting the LeadFIX membrane pins.