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Evaluating the clinical performance of a bioactive restorative materiel (Cention N) placed in non-carious cervical lesions (NCCLs) with no preparation and 1-step adhesive system or, with preparing a gingival retentive groove and no adhesive system.
Cention N is a relatively new restorative material that is known to be the first commercially available bioactive resin composite. The manufacturing company recommends using Cention N with 1-step adhesive system in non-retentive cavities, or with no adhesive system in retentive cavity preparations.
This study was designed to evaluate the clinical performance of this material in non-carious cervical lesions by comparing it to RM-GIC (Fuji II LC).
Information about oral and tooth brushing habits along with detailed information about the characteristics of each NCCL, gingival status, and preoperative sensitivity will be collected for each patient.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Dentin Conditioning & RM-GIC | Active Comparator | Dentin Conditioning: After washing and drying -but not desiccating- Dentin Conditioner 20% (GC, Japan) will be applied using a cotton pellet for 20 seconds then rinsed thoroughly and gently dried. RM-GIC: RM-GIC (Fuji II LC) will be applied in <2mm incremental layers afterward light-cured for 10 sec (1,000 mW/cm2) per increment to fill the cavity. |
|
| 1-step adhesive & Cention N | Experimental | 1-step adhesive: A universal adhesive system (Tetric® N-Bond Universal) will be applied on both enamel and dentin and gently scraped for 20 sec, then dispersed with oil-free gentle air stream, then light-cured for 10 sec (1,000 mW/cm2). Cention N: The cavity will be restored using cention N followed by light curing for 10sec (1,000 mW/cm2) |
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| Dentin roughness & Gingival retentive groove preparation & Cention N | Experimental | Dentin roughness: Using a round carbide bur size 14/16, (H1SEM.204.014 VPE5 or H1SEM.204.016 VPE 5, Komet Dental, Lemgo, Germany) on a low-speed handpiece. (No bevel preparation will be made) Gingival retentive groove preparation: Using size-010 round carbide bur (H1SEM.205.010 VPE 5, Komet Dental, Lemgo, Germany) on a low-speed handpiece. Cention N: The cavity will be restored using cention N followed by light curing for 10sec (1,000 mW/cm2) |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Dentin Conditioning | Other | After washing and drying -but not desiccating- Dentin Conditioner 20% (GC, Japan) will be applied using a cotton pellet for 20 seconds then rinsed thoroughly and gently dried |
| Measure | Description | Time Frame |
|---|---|---|
| Change in retention rate | Rated by Modified United States Public Health Service criteria (USPHS) Alpha: Retained. Bravo: Partially retained. Charlie: Missing. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Change in marginal adaptation | Rated by modified USPHS. Alpha: Restoration is continuous with existing anatomic form. Bravo: Detectable V-shaped defect in enamel only. Catches explorer going both ways. Charlie: Detectable V-shaped defect to dentin-enamel junction. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Hussam Milly, PhD | Milly | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Restorative Dentistry, Faculty of Dental Medicine, Damascus University | Damascus | Syria |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32462087 | Result | Bezerra IM, Brito ACM, de Sousa SA, Santiago BM, Cavalcanti YW, de Almeida LFD. Glass ionomer cements compared with composite resin in restoration of noncarious cervical lesions: A systematic review and meta-analysis. Heliyon. 2020 May 21;6(5):e03969. doi: 10.1016/j.heliyon.2020.e03969. eCollection 2020 May. | |
| 32443424 | Result |
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Split mouth design; each patient will receive three restorations, one for each arm of this study.
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Clinical evaluation of restorations will be conducted by two trained and calibrated examiners. All examiners and patients are going to be blinded from group assignment. Allocation concealment will be done by using sequentially numbered, sealed/opaque envelopes.
| RM-GIC | Other | RM-GIC (Fuji II LC) will be applied in <2mm incremental layers afterword light-cured for 10 sec (1,000 mW/cm2) per increment to fill the cavity. |
|
| 1-step adhesive | Other | A universal adhesive system (Tetric® N-Bond Universal) will be applied on both enamel and dentin and gently scraped for 20 sec, then dispersed with oil-free gentle air stream, then light-cured for 10 sec (1,000 mW/cm2). |
|
| Cention N | Other | The cavity will be restored using cention N followed by light curing for 10sec (1,000 mW/cm2) |
|
| Dentin roughness | Other | Using a round carbide bur size 14/16, (H1SEM.204.014 VPE5 or H1SEM.204.016 VPE 5, Komet Dental, Lemgo, Germany) on a low-speed handpiece. (No bevel preparation will be made) |
|
| Gingival retentive groove preparation | Other | Using size-010 round carbide bur (H1SEM.205.010 VPE 5, Komet Dental, Lemgo, Germany) on a low-speed handpiece. |
|
| Change in restoration fracture |
Rated by modified USPHS. Alpha: None. Bravo: Small chip, but Clinically acceptable. Charlie: Failure due to bulk restorative fracture. |
| Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in marginal discoloration | Rated by modified USPHS. Alpha: No discoloration along the margin. Bravo: Slight and superficial staining (removable, usually localized). Charlie: Deep staining cannot be polished away. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in anatomic form | Rated by modified USPHS. Alpha: Appropriate contour. Bravo: Slightly over/under contoured. Charlie: Unacceptably over/under contoured | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in surface texture | Rated by modified USPHS. Alpha: Enamel-like surface. Bravo: Surface rougher than enamel (clinically acceptable). Charlie: Surface unacceptably rough. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in secondary caries | Rated by modified USPHS. Alpha: No evidence of caries contiguous with the margin. Charlie: Evidence of presence of caries. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in post-operative sensitivity with stimulation | Rated by Modified visual analog scale (VAS). | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Change in post-operative sensitivity without stimulation | Rated by Modified visual analog scale (VAS). | Baseline: 1 day, follow-ups after 1 week, 1 month, 3 months, 6 months, 9 months, 1 year |
| Change in patient satisfaction | Rated by modified USPHS. Alpha: Patient is totally satisfied. Bravo: Patient has esthetic complains, or complains related to the inability to chew comfortably. Charlie: Patient is completely unsatisfied. | Baseline: 1 week, follow-ups after 3 months, 6 months, 9 months, 1 year |
| Francois P, Fouquet V, Attal JP, Dursun E. Commercially Available Fluoride-Releasing Restorative Materials: A Review and a Proposal for Classification. Materials (Basel). 2020 May 18;13(10):2313. doi: 10.3390/ma13102313. |
| 33597335 | Result | Francois P, Remadi A, Le Goff S, Abdel-Gawad S, Attal JP, Dursun E. Flexural properties and dentin adhesion in recently developed self-adhesive bulk-fill materials. J Oral Sci. 2021 Mar 31;63(2):139-144. doi: 10.2334/josnusd.20-0448. Epub 2021 Feb 17. |
| 19830963 | Result | Kim SY, Lee KW, Seong SR, Lee MA, Lee IB, Son HH, Kim HY, Oh MH, Cho BH. Two-year clinical effectiveness of adhesives and retention form on resin composite restorations of non-carious cervical lesions. Oper Dent. 2009 Sep-Oct;34(5):507-15. doi: 10.2341/08-006C. |
| 28962842 | Result | Loguercio AD, Luque-Martinez IV, Fuentes S, Reis A, Munoz MA. Effect of dentin roughness on the adhesive performance in non-carious cervical lesions: A double-blind randomized clinical trial. J Dent. 2018 Feb;69:60-69. doi: 10.1016/j.jdent.2017.09.011. Epub 2017 Sep 27. |
| 32037385 | Result | Panpisut P, Toneluck A. Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers. Dent Mater J. 2020 Aug 2;39(4):608-615. doi: 10.4012/dmj.2019-020. Epub 2020 Feb 7. |
| 11137632 | Result | Swift EJ Jr, Perdigao J, Heymann HO, Wilder AD Jr, Bayne SC, May KN Jr, Sturdevant JR, Roberson TM. Eighteen-month clinical evaluation of a filled and unfilled dentin adhesive. J Dent. 2001 Jan;29(1):1-6. doi: 10.1016/s0300-5712(00)00050-6. |
| 29571660 | Result | Vallittu PK, Boccaccini AR, Hupa L, Watts DC. Bioactive dental materials-Do they exist and what does bioactivity mean? Dent Mater. 2018 May;34(5):693-694. doi: 10.1016/j.dental.2018.03.001. Epub 2018 Mar 20. No abstract available. |
| 39400529 | Derived | Mustafa K, Alfakhry G, Milly H. Periodontal Evaluation for a New Alkasite Restorative Material in Noncarious Cervical Lesions: A Randomized-Controlled Clinical Trial. Clin Exp Dent Res. 2024 Dec;10(6):e70025. doi: 10.1002/cre2.70025. |