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Maxillary sinus augmentation using prehardened calcium sulfate: a case report.

Renzo Guarnieri¹, Mauro Bovi

¹Group for Implant Research, Vittorio Veneto, TV, Italy.

The International Journal of Periodontics & Restorative Dentistry

|November 27, 2002

Summary

Medical-grade calcium sulfate hemihydrate effectively resorbed and facilitated new bone formation for sinus floor elevation. This bone regeneration supported successful osseointegration of dental implants.

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Area of Science:

Oral and Maxillofacial Surgery
Regenerative Dentistry
Biomaterials Science

Background:

Sinus floor elevation is a common procedure to augment bone in the posterior maxilla for dental implant placement.
Grafting materials are essential for successful bone regeneration in these augmented areas.
Calcium sulfate hemihydrate is a potential biomaterial for bone augmentation due to its resorption properties.

Observation:

Prehardened medical-grade calcium sulfate hemihydrate was used for sinus floor elevation in the posterior maxilla.
Dental implants were placed after 8 months of healing, with concurrent bone biopsy for histologic analysis.
Radiographic evaluation at 5 and 8 months showed graft resorption and new bone formation with a trabecular design.

Findings:

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Histology confirmed complete resorption of calcium sulfate hemihydrate.

The newly formed bone exhibited a lamellar structure, indicating mature bone tissue.

The augmented sinus floor demonstrated successful bone regeneration and integration with the surrounding bone.

Implications:

Medical-grade calcium sulfate hemihydrate serves as a viable grafting material for sinus floor augmentation.
The material supports the development of quality bone conducive to dental implant osseointegration.
This case report suggests potential for improved outcomes in maxillary reconstruction using calcium sulfate-based bone grafts.