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Volume 14 , Issue 6
November/December 1999

Pages 859864

Use of BioGran and Calcitite in Bone Defects: Histologic Study in Monkeys (Cebus apella)

Daniela Cristina Joannitti Cancian, DDS, MSc, Eduardo Hochuli-Vieira, DDS, MSc

PMID: 10612924

The present study compares the biologic behavior of BioGran and Calcitite as fillers for surgical cavities in the mandibles of 4 adult monkeys (Cebus apella). The surgical cavities were prepared through both mandibular cortices, with a diameter of 5 mm, in the angle region. Two cavities were prepared on the right side and 1 on the left and divided into 3 groups: R1 sites were filled with bioglass (BioGran), R2 sites were not filled, and L sites were filled with hydroxyapatite (Calcitite). After 180 days the animals were sacrificed and the specimens were removed for histologic processing. Results showed no bone formation in group R2 (empty cavities). BioGran-treated sites showed bone formation and total repair of the bone defect, and the bioglass particles were almost totally resorbed and substituted by bone. The few remaining crystals were in intimate contact with newly formed bone. Calcitite did not allow bone formation, and granules inside the cavities were involved by connective tissue. Based upon those results, the authors concluded that bioglass resulted in total obliteration of the surgical cavity with bone and hydroxyapatite was present in a large amount and involved by connective tissue, without bone formation. (Int J Oral Maxillofac Implants 1999;14:859864) Key words: bioglass, hydroxyapatite, new bone formation

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