Comparison of the new Formed bone in bilateral external sinus lifting between Calcium Sulphate and TriCalcium Phosphate (Histological Study)

Abstract

Background & Aim: Autogenous bone has always been considered the gold standard for other types of bone grafts. However, the need of large amount of it in external sinus lifting led to increasing the interest in search for alternative materials for these grafts.

This study Aim to Histological evaluation the new formed bone in external sinus lifting by using calcium sulfate mixed with the advanced form of fibrin Platelet-rich and compare it with the new formed bone by using Tri-calcium phosphate mixed with the advanced form of fibrin Platelet-rich.

 Materials and methods: A total of 18 biopsies were harvested from the sites of 18 elevated sinuses in 9 patients (5 males/4 females)

Each patient underwent a maxillary sinus lift of both sides with different bone graft materials, calcium sulfate (CS) mixed with the advanced form of platelet-rich fibrin (A-PRF) was used on one side and tri-calcium phosphate (TCP) mixed with the advanced form of fibrin Platelet-rich (A-PRF) on the other side, the grafting site was selected randomly, biopsies were harvested 6 months' post operation. After that, the biopsies were studied to determine the new formed bone and active osteoblasts presence.

Results: no inflammatory response was observed, active osteoblasts were observed in each group, anyway, there was no difference between the two groups in bone formation and active osteoblasts presence.

Conclusion: there is no histological significance differences in new formed bone when comparing between the use of calcium sulphate and calcium phosphate as bone grafting materials in external sinus lifting.