NCT04693559

Assessment of Nanocrystalline Hydroxyapatite Versus Autogenous Bone Grafts : A Comparative Clinical Study in Alveolar Cleft Grafting

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (estimated)
• Sponsor: Assiut University · Academic / Other
• Sex: All
• Age: 7 Years – 12 Years
• Healthy volunteers: Accepted

Summary

This work aims to evaluate Nanocrystalline Hydroxyapatite versus Autogenous bone grafts in alveolar cleft grafting

Detailed description

Alveolar cleft is the most common congenital bone defect. Since its introduction in 1972, alveolar bone grafting (ABG) has been widely accepted to correct alveolar bone defect in most cleft centres.The purpose of ABG is to restore the dental arch continuity, stabilize the maxilla, close the oronasal fistulae, facilitate subsequent orthodontic treatment, enhance nasal symmetry, establish better oral hygiene, limit growth disturbances, etc . Autologous bone grafting is the gold standard for treating alveolar clefts, with the iliac crest , bone being the most widely accepted donor site(Tan, Brogan et al. 1996.New bone graft substitutes have been devised in recent decades, such as demineralized bone matrix (DBM), bone morphogenetic proteins (BMPs), calcium phosphate (CP), calcium sulfate (CS), hydroxyapatite (HA), highly purified bovine xenograft, and more, but clinical evidence of their efficacy varies among clinical and experimental studies \[4\] With the advent of new biomaterials, which may include or consist of allogenic bone source such as collagen membranes, hydroxyapatite crystals, tricalcium phosphate powder that has been increased consideration for their placement in the repair of alveolar clefts as well as other dental applications

Conditions

• Alveolar Cleft

Interventions

Type	Name	Description
PROCEDURE	secondary alveolar bone graft	Under general anaesthesia, the soft tissue in the gingiva surrounding the alveolar cleft will injected with 0.5% lidocaine with 1:100,000 parts of epinephrine. At the alveolar cleft site, gingival sulcus incisions will made on both the sides of the cleft. The tissue will then elevated beneath the periosteum. The mucosa of the nasal floor and the oral mucosa will dissected. Next, the bone particles will implanted into the bone defect. The cleft site will closed without tension by advancement of the gingival flaps
PROCEDURE	harvesting of the autogenous bone graft	osteotome and then cut into small bone granules. The bone granules will then carefully placed into a syringe and pressed to its densest state by pushing the plunger
PROCEDURE	Nanocrystalline Hydroxyapatite	Nanocrystalline Hydroxyapatite will be used to fill the alveolar defect

Timeline

• Start date: 2021-01-01
• Primary completion: 2022-11-01
• Completion: 2023-03-01
• First posted: 2021-01-05
• Last updated: 2021-01-05