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Treatment guidelines

Hard tissue augmentation (esthetic zone)

Key points

  • Vertical bone gain in anterior maxillae for the single-tooth situation is mainly accomplished with guided bone regeneration techniques or with an L-shaped fixed bone block. Corresponding procedures in mandibles are rarely performed and merely possible to accomplish in the canine region.
  • Sagittal bone gain in anterior jaw regions is mainly accomplished with a fixed bone block or with particulate bone, attached to the buccal plate.
  • Covering membranes are regularly used on grafting materials. Equally good results are seen with autografts, allografts, xenografts and alloplasts.

Digital Textbooks

eBook: Single Implants and their Restoration
Single implants and their restoration
Common causes of alveolar defects include bone resorption due to loss of teeth, infection, trauma, or congenital origin. There may be insufficient height or width of residual bone to permit the placement of dental implants, making bone grafting a requirement prior to implant placement. Without grafting, the implants would have to be placed in anatomically unfavorable locations or have adverse angulations. These locations/angulations compromise can lead to esthetic dissatisfaction, mechanical overload and possibly increase the potential for implant loss.
eBook: Single Implants and their Restoration
Single implants and their restoration
Compared to other areas of the oral cavity, the maxillary posterior edentulous region can present its own set of unique challenges when it comes to dental implant therapy. For example, following extraction of posterior teeth, the bone around the extraction sites undergoes resorption. As bone resorbs, the soft tissue architecture also changes to reflect the loss of underlying foundational bone.


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