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Aim of this study will be conducted to compare the shade matching and clinical performance of shade blocker versus chameleon effect of two single-shade of universal resin composite in class IV restorations over 1 year evaluation period
The color matching of both groups will be evaluated visually using modified USPH criteria
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| single shade universal resin composite (omnichroma) with blocker | Experimental | (OMNICHROMA BLOCKER) is indicated for preventing shade-matching interference in Class IV restorations, Masking dark dentition and dentin. In cases where there is a lack of tooth structure to bond to, (BLOCKER) works as a supplementary product to provide a lingual wall to the restoration, prevent shade-match obstruction and mask staining. |
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| single shade universal resin composite(GC solare sculpt) with chameleon effect | Active Comparator | One-shade universal resin composite (GC solare sculpt) gives very natural appearance, High gloss retention over time, time saving regarding to layering technique, wide shade matching range (chameleon effect) and delivering lifelike aesthetic restorations. These features can be offered by supra-nano spherical filler which have controlled refractive index, records excellent esthetic properties in small and medium class IV restorations. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| single-shade universal resin composite (omnichroma) with blocker( omnichroma blocker) | Diagnostic Test | (OMNICHROMA BLOCKER) is indicated for preventing shade-matching interference in Class IV restorations, Masking dark dentition and dentin. In cases where there is a lack of tooth structure to bond to, (BLOCKER) works as a supplementary product to provide a lingual wall to the restoration, prevent shade-match obstruction and mask staining. |
| Measure | Description | Time Frame |
|---|---|---|
| shade matching | the shade matching of both groups will be assessed visually by using modified USPH criteria. score: 1- Alpha : the restoration match the shade and translucency of the adjacent tooth 2-Bravo : there is a mismatch in the shade and translucency but it is within a normal range of tooth shade 3- Charlie: the mismatch is beyond the normal range of the tooth shade and translucency | 12 months |
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Inclusion Criteria:
moderate class IV defect with no lingual wall presence of favorable occlusion and teeth are in normal contact with the adjacent teeth good oral hygiene cooperative patients
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Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| sarah ahmed, master | Contact | 01015139628 | sarah.mohamed@dentistry.cu.edu.eg |
| Name | Affiliation | Role |
|---|---|---|
| sarah ahmed, master | Cairo University | Principal Investigator |
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The aim of the study is to compare the shade matching and clinical performance of shade blocker versus chameleon effect of two single-shade universal resin composite in class IV restorations over 1year evaluation period.
The restorations will be evaluated at T1= after 1 week T2= 3months T3= 6 months T4= 12 months
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| ID | Term |
|---|---|
| D014075 | Tooth Discoloration |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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