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30 recruited patients indicated for sinus membrane elevation with simultaneous implant placement. patients are divided into 2 groups each group contain 15 patients, one group assigned for placement of bovine bone graft after membrane elevation and insertion of the implants while the other group assigned for graft-less tenting technique after membrane elevation and insertion of the implant.
On the 2 groups a mucoperiosteal flap is elvated then a lateral wondow is created then sinus membrane is elevated then the implants are placed, in the control group deproteinized bovine bone graft substitute is placed in the sinus for augmentation while in the study group no bone graft is added inside the sinus( graftless tenting technique)
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| sinus lift,implant placement,tenting | Experimental | elevation of the sinus membrane with simultaneous implant placement without the use of any bone graft material(tenting technique) |
|
| sinus lift,implant placement,bovine bone | Active Comparator | elevation of the sinus membrane with simultaneous implant placement together with deproteinized bovine bone graft substitute for augmentation |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| sinus lift,implant placement,tenting | Procedure | elevation of the sinus membrane then insertion of the implants without any bone graft material( graft-less) for augmentation |
|
| Measure | Description | Time Frame |
|---|---|---|
| patient satisfaction | evaluation of post operative complications in terms of pain and edema using patient pain chart | 7 days post operative |
| Measure | Description | Time Frame |
|---|---|---|
| implant stability | measurement of the implant stability using the osstell device | will be measured intraoperatively immediately after insertion of the implants and will be measure one more time 6 months after the 1st operation at the time of exposure of the implants |
| height of bone gained or lost around the implants |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Dentistry Cairo University | Cairo | Egypt |
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| sinus lift,implant placement,bovine bone | Procedure | sinus membrane elevation then placement of the implants together with deproteinized bovine bone substitute as a graft material for augmentation |
|
two cone beam computed tomography(CBCT) will be taken for the patient, one immediate postoperative and the other 6 months after the operation then the height of bone gained or lost around the implants will be assessed by superimposing the same section in the two CBCTS. |
| 6 months postoperative |