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The aim of the study is to evaluate the crestal bone loss developed around short dental implants after using screw retained Hybrid ceramic crowns when compare to screw retained Lithium Di silicate based ceramic crowns.
This study will be conducted on patients requiring single implant replacement in the posterior regions of the mandible, admitted to the Outpatient Clinic of Fixed Prosthodontics Department, Faculty of Oral and Dental medicine, Cairo University.
Examination and diagnosis:
G1: Short implants will be restored by screw retained Hybrid ceramic crowns G2: Short implants will be restored by screw retained Lithium Di silicate based ceramic crowns
Surgical procedures:
Data collection and post operative radio-logical assessment:
-Taking standardized digital peri-apical radio-graph by paralleling technique and film holding device for follow up at 12 months after crowns loading to evaluate crestal bone loss.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Hybrid superstructure | Experimental | screw retained hybrid ceramic crowns |
|
| Ceramic superstructure | Active Comparator | screw retained lithium disilicate based ceramic crowns |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Vita Enamic (Hybrid dental ceramic) | Other | Vita Enamic (Hybrid dental ceramic) is provided as blocks to be milled using Computer aided design/Computer aided manufacturer (CAD/CAM) technology. |
| Measure | Description | Time Frame |
|---|---|---|
| Crestal Bone Loss Crestal bone loss will be measured using standardized digital periapical radiograph by paralleling technique and film holding device -measuring unit:Milimeters | preventive | one year |
| Measure | Description | Time Frame |
|---|---|---|
| screw loosening of crowns screw loosening will be observed by clinical investigation -measuring unit:Binary (Yes/No) | preventive | one year |
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Inclusion Criteria:
Exclusion Criteria:
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| ID | Term |
|---|---|
| D001851 | Bone Diseases, Metabolic |
| ID | Term |
|---|---|
| D001847 | Bone Diseases |
| D009140 | Musculoskeletal Diseases |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| C000621297 | VITA Enamic |
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