[Crestal core elevation technique--case series and literature review]

Area of Science:

• Oral and Maxillofacial Surgery
• Dental Implantology
• Bone Augmentation Techniques

Context:

• Sinus floor augmentation is crucial for dental implant placement in the posterior maxilla.
• Common techniques include Bone Added Osteotome Sinus Floor Elevation (BAOSFE) and Lateral Window Technique (LWT).
• Limited literature exists on the Crestal Core Elevation (CCE) technique.

Purpose:

• To present three cases utilizing the Crestal Core Elevation (CCE) technique for sinus augmentation.
• To discuss the advantages, disadvantages, and indications for the CCE technique.
• To highlight CCE's application in cases with limited bone volume (<6mm) for implant stability.

Summary:

• The Crestal Core Elevation (CCE) technique, a modification of BAOSFE, uses osteotomes and a trephine bur to elevate the sinus membrane.
• It is indicated for patients with insufficient bone height, delaying implant placement for 3-8 months.
• Fugazzoto's modification allows concomitant tooth extraction and augmentation, minimizing alveolar resorption.

Impact:

• CCE reduces surgical trauma by utilizing a detached core of interradicular bone.
• Concomitant grafting with particulate material and a membrane minimizes 3-dimensional alveolar bone loss.
• This technique expands options for dental implant rehabilitation in challenging maxillary bone conditions.