An interventional study of Alveolar ridge preservation using autogenous demineralized dentin block graft and Alveolar ridge preservation using autogenous bone block graft in Alveolar Bone Loss, sponsored by Cairo University. Status unknown at 1 site in Egypt. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-02.
Sponsored by Cairo University · Not applicable, Interventional, and Treatment
The aim of this trial is to compare the effect of autogenous demineralized dentin block graft (ADDBG) versus autogenous bone block graft (ABBG) harvested from maxillary tuberosity on alveolar ridge preservation after extraction of non-restorable single rooted teeth
Many studies have reported an approximately 50% reduction in alveolar bone both the horizontal and vertical directions over 12 months with more than two-thirds of the reduction occurring in the first three months after extraction. Alveolar ridge preservation is a procedure that attempts to reduce bone dimensional changes that naturally take place following tooth extraction. A broadly recognized approach is the maintenance of bone walls through bone substitute (graft) delivery into the socket, where guided bone regeneration may be a requisite. Autogenous bone graft has osteogenic and osteoinductive effect. however, when attempts were made to use autologous bone chips in socket preservation, they failed to promote healing or stimulate hard tissue formation in the socket. On the other hand, autogenous bone block graft from the tuberosity has shown a feasible, user-friendly, low-cost solution for minimizing soft and hard tissue collapse and dimensional loss following single-rooted tooth extraction.
Moreover, root dentin block is composed of Type I collagen matrix with several osteoinductive non-collagenous proteins such as bone morphogenetic proteins (BMP) and dentin matrix proteins. Geometrically, alveolar bone morphology was maintained by dentin block graft as well as it has micropores (dentinal tubules) of 3-5 μm diameter and macropores of 0.2-0.3 mm diameter for enhancing osteoinductive and osteoconductive functions.
Both demineralized dentin block and autogenous bone block grafts has been utilized for alveolar ridge preservation or augmentation but the superiority of one form over the other is not yet clear
297 studies on the registry are indexed under Alveolar Bone Loss; 76 are open to participants now.
This study's planned enrollment of 20 is below the median of 25 across 254 interventional studies indexed under Alveolar Bone Loss.
Browse Alveolar Bone Loss studies →Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.
Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.
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Exclusion Criteria:
Atraumatic extraction of non-restorable teeth, then the extracted tooth will be prepared and demineralized using HCL acid as demineralized dentin block graft and inserted in the extraction socket
Procedure: Alveolar ridge preservation using autogenous demineralized dentin block graft
Atraumatic extraction of non-restorable teeth, then autogenous bone block will be harvested from the maxillary tuberosity and reshaped and inserted in the extraction socket
Procedure: Alveolar ridge preservation using autogenous bone block graft
Atraumatic extraction of non restorable tooth, then the extracted tooth will be prepared and demineralized by HCL acid and inserted as demineralized dentin block graft in the socket
Atraumatic extraction of non restorable tooth, then the autogenous bone block graft will be harvested from the maxillary tuberosity and reshaped and inserted into the socket
Alveolar ridge bucco-lingual width change in mm
Alveolar bone linear width will be measured at baseline and after 6 months using cone beam computed tomography (CBCT) scans. The change in bone width will be calculated as the subtraction of final width from baseline width and will be measured in millimetres (Jung et al., 2013)
Time frame: 6 months
Alveolar ridge apico-coronal height change in mm
Difference in height linear measurement between baseline and final CBCT scans (Jung et al., 2013) Difference in height linear measurement between baseline and final CBCT scans (Jung et al., 2013) Measures the difference in height linear measurements between baseline and final CBCT scans (Jung et al., 2013)
Time frame: 6 months
Histological assessment
Bone samples from control and intervention sites will be taken during implant placement using a trephine bur of a size smaller than the implant. Samples will be examined for new bone formation (Yes/no) and inflammatory response (Yes/no) (Wong and Rabie, 2010).
Time frame: 6 months
Plan to share: Undecided
This study is status unknown, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.
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Cairo University