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This study evaluates the effect of leucocyte and platelet rich fibrin (L-PRF) during endodontic microsurgery (EMS) on patient's post-operative comfort and periapical bone healing. Also the influence of an occlusive membrane barrier in EMS on the periapical bone healing will be studied. The trial design is an open randomized controlled clinical trial with a 2x2 factorial design. Half of the participants will receive EMS with L-PRF (experimental group), the other half without (control group). The control and experimental group will be divided in 2 subsequent groups: half of the participants will receive an occlusive membrane during EMS, the other half not.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| + L-PRF | Experimental | With leukocyte and platelet rich fibrin |
|
| - L-PRF | Active Comparator | Without leukocyte and platelet rich fibrin |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| EMS | Procedure |
| ||
| + occlusive membrane |
| Measure | Description | Time Frame |
|---|---|---|
| Patient related outcomes | Assessed with a Visual Analog Scale | 7 days |
| Measure | Description | Time Frame |
|---|---|---|
| Patient related outcomes | Assessed with a questionnaire | 7 days |
| Measure | Description | Time Frame |
|---|---|---|
| Amount of periapical bone healing in time | Assessed with conebeam CT and periapical radiography | 4 years |
| Timeframe in which the cortical bone plate closes | Assessed with echography |
Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UZ Leuven | Leuven | 3000 | Belgium |
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| ID | Term |
|---|---|
| D010485 | Periapical Periodontitis |
| ID | Term |
|---|---|
| D010483 | Periapical Diseases |
| D007571 | Jaw Diseases |
| D009057 | Stomatognathic Diseases |
| D010510 | Periodontal Diseases |
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|
| conebeam CT | Device |
|
| 1 year |
| Bone or scar tissue healing | Assessed with conebeam CT | 4 years |
| Dentinal defects | Assessed with a LED light source | 1 day |
| Type of periapical tissue | Assessed by biopsy | 7 days |
| D009059 |
| Mouth Diseases |
| D010518 | Periodontitis |