NCT06273410

Brief Summary

Despite significant advances in composite materials, they are still perceived as technique-sensitive and exhibit failure related to excessive wear and polymerization shrinkage. Cention N is a recently introduced alkasite restorative that contains special reactive fillers. Its application in restorative dentistry may be significant, promoting remineralization of carious lesions \& reduction of polymerization shrinkage. The study will aim to compare the clinical performance of Cention N (with and without adhesive) and composite resin (Filtek Bulk Fill) in class I restorations using FDI criteria. Thirty-six class I cavities will be selected and equally allocated into 3 groups: Group I (n=12): (Cention N with adhesive), Group II (n=12): (Cention N without adhesive) \& Group III (n=12): composite resin (Filtek Bulk Fill) in class I cavities. Patients will be followed up at 1 week 3, 6, and 12 months and evaluated using the FDI criteria. Postoperative sensitivity, staining, and recurrent caries will be evaluated in this clinical trial.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 13, 2022

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 28, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 28, 2023

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

February 2, 2024

Completed
20 days until next milestone

First Posted

Study publicly available on registry

February 22, 2024

Completed
Last Updated

February 22, 2024

Status Verified

February 1, 2024

Enrollment Period

1.1 years

First QC Date

February 2, 2024

Last Update Submit

February 14, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in pain sensitivity

    Air spray will be applied from a 2-mm distance on to the occlusal surface for 35seconds and should always be compared with the reaction of adjacent vital teeth. The severity of patients' pain/sensitivity will be recorded and given a score from 1 to 5

    1 week, after 3, 6 and 12 months

  • Change in occurrence of recurrent caries

    All surfaces were dried prior to evaluation. The restorations' assessment will be performed using a dental mirror and a ball-point probe aided by periapical radiographs.

    1 week, after 3, 6 and 12 months

  • Change in occurrence of marginal stains

    It is recommended to ask the patient about dietary habits. The restoration surface will be evaluated with regard to staining by comparison with the surrounding hard tissues and will be performed by the means of visual inspection aided with intraoral photography

    1 week, after 3, 6 and 12 months

Study Arms (3)

Cention N without adhesive.

EXPERIMENTAL
Other: Cention N

Cention N with adhesive

EXPERIMENTAL
Other: Cention N + Adhesive

Filtek Bulk Fill posterior composite

ACTIVE COMPARATOR
Other: Bulk Fill Composite

Interventions

Cention N will be manipulated using the standard powder: liquid ratio which is, one scoop of powder with one drop of liquid. Powder and liquid will be dispensed on the mixing pad and mixed using a plastic spatula according to the manufacturer's instruction for 45-60 seconds

Cention N without adhesive.

Cavity will be rinsed with water to remove all residue. Etchant will be applied onto the prepared cavity for 15 seconds and thoroughly rinsed with water spray and gently dried with air jet. A layer of Tetric N Bond universal will be applied on the enamel \& dentin surface using a disposable applicator, the material will be gently brushed into dentin for at least 10 seconds

Cention N with adhesive

Cavity will be rinsed with water to remove all residue. Etchant will be applied onto the prepared cavity for 15 seconds and thoroughly rinsed with water spray and gently dried with air jet. A layer of Tetric N Bond universal will be applied on the enamel \& dentin surface using a disposable applicator, the material will be gently brushed into dentin for at least 10 seconds.

Filtek Bulk Fill posterior composite

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Permanent molars with occlusal pit and fissure caries.
  • Good oral hygiene.
  • Occlusal contact with antagonist teeth.

You may not qualify if:

  • Permanent molars with occlusal pit and fissure caries.
  • Good oral hygiene.
  • Age between 18- 45 years.
  • Occlusal contact with antagonist teeth.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Alexandria Faculty of Dentistry

Alexandria, Egypt

Location

Related Publications (1)

  • El-Salamouny NA, Elmahy WA, Holiel AA. Comparative evaluation of bioactive alkasite-based material in different application modes: a 1-year randomized controlled clinical trial. Odontology. 2025 Oct;113(4):1689-1700. doi: 10.1007/s10266-025-01095-4. Epub 2025 Apr 15.

MeSH Terms

Interventions

Adhesives

Intervention Hierarchy (Ancestors)

Specialty Uses of ChemicalsChemical Actions and UsesManufactured MaterialsTechnology, Industry, and Agriculture

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant lecturer of DPH and Clinical statistician

Study Record Dates

First Submitted

February 2, 2024

First Posted

February 22, 2024

Study Start

October 13, 2022

Primary Completion

November 28, 2023

Study Completion

November 28, 2023

Last Updated

February 22, 2024

Record last verified: 2024-02

Locations