case_images: PMC3335652_01
case_images: Initial presentation.
case_images: CRIM.DENTISTRY2011-345048.001.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.001.jpg
case_images: fig1
case_images: Upon clinical examination, it was noted that several posterior teeth were missing from the first quadrant and that the only remaining multirooted tooth (the upper right first molar) was severely periodontally compromised (Figure 1).
case_images: Radiograph shows hopeless upper molar with retained roots both mesial and distal to the tooth.
case_images: CRIM.DENTISTRY2011-345048.002.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.002.jpg
case_images: fig2
case_images: The radiographic examination revealed the presence of unextracted roots in the areas immediately mesial and distal to the remaining molar (Figure 2).
case_images: Extraction site immediately after tooth removal.
case_images: CRIM.DENTISTRY2011-345048.003.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.003.jpg
case_images: fig3
case_images: The remaining tooth sockets were curetted and all granulation tissue and socket debris were removed (Figure 3).
case_images: Formation of L-PRF.
case_images: CRIM.DENTISTRY2011-345048.004.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.004.jpg
case_images: fig4
case_images: Using this method, the blood in the tubes separated into three visible layers, that is, a red blood cell layer (RBC) that occupied the lower most part of the tube, a cell-free layer that occupied the uppermost part of the tube, and an L-PRF layer that was located between the two (Figure 4).
case_images: L-PRF membrane.
case_images: CRIM.DENTISTRY2011-345048.005.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.005.jpg
case_images: fig5
case_images: For each tube, the L-PRF layer was removed, and compressed between saline soaked sterile gauze to form an "L-PRF membrane" (Figure 5).
case_images: Extraction site healing 1 week after tooth removal (note the visibility of the L-PRF membrane).
case_images: CRIM.DENTISTRY2011-345048.006.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.006.jpg
case_images: fig6
case_images: The site was free of infection and the L-PRF membrane was still clearly visible (Figure 6).
case_images: Radiograph showing new bone formation.
case_images: CRIM.DENTISTRY2011-345048.007.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.007.jpg
case_images: fig7
case_images: A radiograph taken prior to implant placement confirmed new bone formation in the extraction area (Figure 7).
case_images: Flap reflection.
case_images: CRIM.DENTISTRY2011-345048.008.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.008.jpg
case_images: fig8
case_images: The ridge had retained its morphology with no signs of bone resorption or of the residual socket (Figure 8).
case_images: Radiograph showing stable peri-implant bone 3 months after restoration.
case_images: CRIM.DENTISTRY2011-345048.009.jpg
case_images: PMC3335652_01_CRIM.DENTISTRY2011-345048.009.jpg
case_images: fig9