Читать книгу Practical Procedures in Implant Dentistry - Группа авторов - Страница 68

When creating an incision in the region of the greater palatine artery a zone of safety should be maintained to avoid injury to the artery with potential resulting bleeding and soft tissue necrosis. This zone of safety will often depend on the anatomical variation of the individual patient. Although the greater palatine neurovascular bundle is typically located at the junction of the vertical and horizontal palatal walls, significant variations in palatal vault depth mean the neurovascular bundle could be as close as 7 mm from the lingual gingival margin at the first molar site in low palatal vault phenotypes to as much as 17 mm in high palatal vault phenotypes [28]. The harvest of connective tissue grafts and free gingival grafts is routinely performed in the maxillary posterior palatal tissues from the first molar site forward to the canine. In most dentate patients without significant periodontal disease it is possible to harvest connective tissue and free gingival grafts up to 8 mm in height without injury to the neurovascular bundle [29].