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This clinical trial conducted to measure the amount of wear of opposing enamel to indirect milled resin matrix ceramic versus direct bulk fill resin composite intraorally using Digital Scanner after two years of using
Indirect milled resin matrix ceramic overlay versus direct bulk fill resin composite overlay was utilized in a clinical trial to compare the amount of enamel wear on endodontically treated molars using a Panda P2 digital scanner and Geomagic Control X 3D software. After one and two years, measurements of enamel wear were taken.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Resin matrix ceramic block | Experimental | BRILLIANT Crios is the ideal choice for single-tooth restorations, both in the anterior and the posterior region. It is composed of dental glass (barium glass ˂ 1.0 μm), amorphous silica (Sio2 ˂ 20 nm), resin matrix (cross-linked methacrylates) and pigments (inorganic pigments such as ferrous oxide or titanium dioxide). |
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| Direct Restoration | Active Comparator | 3M™ Filtek™ One Bulk Fill Restorative is a visible light activated, restorative composite optimized to create fast and easy restorations. The material can be placed and cured up to 5 mm deep, enabled by a stress relieving resin system and optimized optical properties. It is composed of fillers which are a combination of a non-agglomerated/non-aggregated 20 nm silica filler. 4 to 11 nm zirconia filler, zirconia/silica cluster filler and ytterbium trifluoride filler consisting of 100nm particles. The inorganic filler loading is about 76.5% by weight (58.5% by volume). It contains AFM (dynamic stress-relieving monomer), AUDMA, UDMA and 1, 12-dodecane-DMA. 3M™ Filtek™ Bulk Fill Posterior Restorative is applied to the tooth following use of a methacrylate-based dental adhesive |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Resin matrix ceramic block | Procedure | Milled resin composite block for fabrication of permanent, indirect restorations using a CAD/CAM grinding process. shock absorbing affect due to the dentin- like modulus of elasticity makes BRILLIANT Crios will suited or indirect restoration. |
| Measure | Description | Time Frame |
|---|---|---|
| Amount of Enamel Wear | amount of enamel wear measured through superimposition of STL files exported from intraoral scanner then using geomagic Control X 3D | two years follow up |
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Inclusion Criteria:
● Patients with non vital badly decayed posterior teeth.
Exclusion Criteria:
High caries index.
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| Name | Affiliation | Role |
|---|---|---|
| Esraa EE Hussien, PhD | Misr University for Science and Technology | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Misr University for Science and Technology | Giza | 3220001 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 41723141 | Derived | Elhaddad EEH, Elkady AAM, Diab DFS. A two year randomized clinical trial comparing opposing enamel wear from milled resin-matrix ceramic and direct bulk-fill composite overlays. BDJ Open. 2026 Feb 21;12(1):19. doi: 10.1038/s41405-026-00400-9. |
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| ID | Term |
|---|---|
| D057085 | Tooth Wear |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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Randomized Clinical Trial
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Blinding empowers the research to minimize threats to internal validity and strengthen the external validity. Our clinical trial was double blinding, the participant and the outcomes assessor were blinded while, the investigator cant be blinded as he worked with two different materials and techniques
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