Effect of Nanocrystalline Calcium Sulfate Bone Graft in a Bilateral Sinus-Augmentation Procedure: A Case Report.

Introduction: Patients with an edentulous posterior maxillary segment frequently lack adequate bone mass to support dental implants. Implant placement into the posterior maxillary ridge can be complicated by limited quantity and poor quality of bone. Sinus lift and bone grafting result in bone regeneration as well as an increase in bone volume and hence help stabilize implants.

Treatment of a mandibular cyst before implant placement: case report.

The aim of this case study is to present a clinical approach to treatment of a mandibular intrabony cyst employing guided bone regeneration principles and protection of the mandibular nerve prior to implant placement. A treatment approach employing a combination of grafting materials and membranes was used to treat the cyst and protect the mandibular nerve prior to implant placement. Micro CT, as well as histology and histomorphometrics, was used to evaluate treatment outcomes.

Socket preservation and sinus augmentation using a medical grade calcium sulfate hemihydrate and mineralized irradiated cancellous bone allograft composite.

Regeneration and preservation of bone after the extraction of a tooth are necessary for the placement of a dental implant. The goal is to regenerate alveolar bone with minimal postoperative pain. Medical grade calcium sulfate hemihydrate (MGCSH) can be used alone or in combination with other bone grafts; it improves graft handling characteristics and particle containment of particle-based bone grafts.

Bone repair in periodontal defect using a composite of allograft and calcium sulfate (DentoGen) and a calcium sulfate barrier.

Deep bone defects are caused by the progression of periodontal disease, which breaks down bone and connective tissue that hold teeth in place. In this case, a 37-year-old male patient presented a deep bone defect with advanced periodontal disease around an upper canine. Medical-grade calcium sulfate was mixed with demineralized freeze-dried bone allograft and used to repair and regenerate the defect.

In vivo bone response to calcium sulfate/poly L-lactic acid composite.

Purpose: Calcium sulfate (CS) is an excellent bone graft material not only because of its osteoconductive, biodegradable, biocompatible, and nontoxic properties, but also because of its angiogenic, barrier membrane, and hemostatic properties. The latter make it unique as a bone graft material. Nevertheless, its clinical use for this purpose is limited by its rapid degradation rate: it usually completely degrades in 4 to 5 weeks, often not enough time for bone to grow into a defect.

In vitro characterization of a calcium sulfate/PLLA composite for use as a bone graft material.

A study was conducted to characterize the dissolution, morphology, and chemical composition of a calcium sulfate/poly (L-lactic acid) (CS/PLLA) composite material before and after immersion in simulated body fluid (SBF). Twelve groups of experimental samples were prepared by coating CS pellets 1, 2, 3, or 4 times with one of three concentrations of a PLLA solution and wrapping them in mesh; CS pellets for use as controls were similarly prepared but not coated. The PLLA coating added from 1 to 22% to the weight of experimental pellets; scanning electron microscopy revealed that the coating thickness ranged from 2 to 50 microm depending on the concentration of the coating solution and the number of coatings.