Efficacy of Modified Piezosurgery Alveolar Bone Cut With Osseodensification Drills in Expanding Narrow Alveolar Bone

Atrophic maxilla or mandible can lead to lack of prosthesis retention because of an inadequate bearing area causing both functional and physiological problems for patient, these problems can be treated for patient satisfaction with an implant supported fixed or removable complete or partial denture. Atrophic edentulous jaws can represent a significant challenge to the successful use of endosseous implants for prosthetic reconstruction of the edentulous mandible.

A collapsed alveolar ridge demonstrating a narrow width (less than 5 mm in many cases) and grossly adequate alveolar height is the most common candidate for the RSP.

Beginners in RSP should initially choose a 4-5 mm thickness of an even maxillary alveolar ridge and strive to almost double it in width.

A 3-mm alveolar ridge generally consists of 3 thin bone layers (in a horizontal sandwich fashion): 2 cortical plates (about 1 mm each) separated by 1 cancellous layer (about 1 mm). The wider the cancellous bone layer (the layer where the split is done), the easier it will be to accomplish the RSP

Inclusion criteria

• Patient's age ≥18 years.
• Absence of any medical disease that compromise wound healing.
• Patient with good oral hygiene.
• Narrow alveolar bone (3-4 mm) with minimum alveolar bone height of (12 mm).

Exclusion criteria

• Uncontrolled medically compromised patients.
• Heavy smokers (> 10 cigarettes per day).
• Patient with parafunctional habits.
• Local infection at implant site.