P. E. T. Partial Extraction Socket
P. E. T.
When we decided to preserve the labial volume, for aesthetic reasons, with the maintenance of the labial bone, through a socket shield, the procedure has very specific premises: the tooth must have a periodontal condition full of health, the periodontal ligament must be healthy!. On the other hand, if the implants are contiguous, as in this case, # 8 and # 9, where we want to preserve the height of the interproximal papilla, the shield should extend proximally, following the contour of the gingival margin. We know that the preparation is very delicate and leaving 1 mm of shield is necessary so that there is a jumping gap of at least 1 mm. Concerned for about height, that shield must be 3 mm deep, to create a biological space, avoiding the exposure of the radicular fragment. The gap is filled with allograft material and in my protocol it is mixed with Liquid APRF (according protocol of Dr. Choukroun). Fill the gap after implant placement, it is very difficult, so in my routine, I prefer fill the socket with allograft material and then, with the last drill, at very low speed (30-50rpm), NO IRRIGATION. I think this is the best way to fill the gap. In this case a conical connection implant was used, because it is a very stable connection avoiding micro movement and pumping effect. It was placed 1 or 2 mm below the root fragment. In this case, due to having defective metallic-metal crowns of lateral incisor, they were removed and a provisional with ovate pontics was made, emphasizing the distance between the pontic and the implant, maintaining a prudent separation so as not to produce any contact to the implant. The subcritical zone of the pontic was made with resin flow with high polish.