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CompletedNCT04463342Updated Mar 26, 2025

Evaluation of Clinical Performance for Recent Non Coated Glass Ionomer in Posterior Teeth

A Phase 1 interventional study of Non Coated Glass Ionomer and Conventional Glass Ionomer with Coat in Occlusal Caries, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 19 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-03-26.

Sponsored by Cairo University · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Sep 2019, registered Jun 2020).
Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
19 Years to 40 Years
Sex
All
01

Study summary

In patients with occlusal caries in posterior teeth, does the use of recently introduced non coated glass ionomer provide better clinical performance compared to conventional glass ionomer with surface coating?

-Primary objective: To evaluate clinical performance of different types of restorations (Ketac molar with coating and Ketac Universal Aplicap 3M without coating) in occlusal caries in posterior teeth.

Read the detailed description

The study will be conducted in Conservative Dentistry Department, Faculty of Dentistry, Cairo University; The operator in charge will be Mahmoud Magdy Eldamanhory

Patients will be selected from the outpatient clinic of the department Conservative Dentistry Department, Faculty of Dentistry, Cairo University

  • Local anesthesia will be applied to patients complaining about pain or sensitivity to prevent discomfort during restorative procedures.
  • Conservative cavity design will be used according to the principals of minimal invasive dentistry.
  • All the cavities will be performed by the main author using #57 straight plain carbide fissure bur held in high speed contra-angled hand piece with water cooling system.
  • All internal line angles will be slightly rounded.
  • Each bur will be discarded after 5 preparations
  • If deep caries will be found, it will be removed with large round bur at low speed and a thin layer of calcium hydroxide will be placed on the deep portion of the cavity.
  • Isolation will be maintained by using Rubber Dam.
  • The dentin and enamel of cavities will be conditioned with 20% polyacrylic acid for 20 seconds (Cavity Conditioner, GC), washed, and briefly dried.
  • The restorations will inject into the cavity.
  • After the passage of the manufacturer's recommended setting time of 2.5 minutes, the restoration will be trimmed and polished wet using high-speed fine diamonds.

In control group ketac molar with coating:

-After the restoration will briefly dry, Ketac Coat will be applied and photocured for 20 seconds using a photo-curing light.

In study group " Ketac Universal Aplicap 3M without coating":

-The newest addition to glass ionomer family, Ketac Universal Aplicap glass ionomer restorative is a self-cure, one-step placement material designed to help to finish faster. There's no need for conditioning, coating or light-curing steps.

02

Conditions studied

  • Occlusal Caries

Keywords

  • Occlusal Caries
  • Glass Ionomer
  • Tooth colored Restoration
  • Non-Coated Glass Ionomer
  • Universal Glass Ionomer
03

In context

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Presence of at least 2 carious class I in same patient.
  • The absence of tooth mobility.
  • Presence of contact with opposite teeth without any abnormal occlusion stress for the selected teeth.
  • Accessible isolation and observable and easily accessible.

Exclusion criteria

Exclusion Criteria:

  1. Patients with poor oral hygiene. According to DMF or ADA criteria.
  2. The presence of any para functional habit.
  3. Abnormal occlusion.
  4. Any regurgitation problem.
  5. Subjects with compromised medical history.
  6. Pulpitis, non-vital or endodontically treated teeth.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Non Coated Glass Ionomer

    A faster, easier procedure is great, but you want assurance that reducing chair time doesn't mean compromising on performance. KetacTM Universal AplicapTM Glass Ionomer Restorative saves time by eliminating the need for a coating-yet still delivers the compressive strength and surface hardness that are higher than several competitive glass ionomers which require one.This advancement is the latest in 3M's 30-year history of developing proven and trusted glass ionomers.

    Combination Product: Non Coated Glass Ionomer

  • Active comparator
    Conventional Glass Ionomer with Coat

    A bulk-fill, packable and fast-setting conventional glass ionomer. Because it's less "technique sensitive" than a composite it's ideal for difficult-to-isolate posterior restoration. High compressive strength and marginal integrity make it a glass ionomer of choice for posterior restorations.Ketac Conditioner Dentin Pretreatment is required; Ketac Glaze Light-Cured Varnish applied on the top of the restoration to avoid moisture contamination.

    Combination Product: Conventional Glass Ionomer with Coat

Interventions

  • Combination productNon Coated Glass Ionomer

    KetacTM Universal AplicapTM Glass Ionomer Restorative saves time by eliminating the need for a coating-yet still delivers the compressive strength and surface hardness that are higher than several competitive glass ionomers which require one.

    Also known as: Ketac Universal Aplicap- Glass Ionomer Restorative

  • Combination productConventional Glass Ionomer with Coat

    Conventional Glass Ionomer with Coat

06

What researchers measure

Primary outcomes

  1. Distance penetrated by the Explorer at the tooth restoration interface

    The explorer will be drawn across the surface of the restoration toward the tooth

    Time frame: during procedure

  2. Distance penetrated by the Explorer at the tooth restoration interface

    The explorer will be drawn across the surface of the restoration toward the tooth

    Time frame: 3 months

  3. Distance penetrated by the Explorer at the tooth restoration interface

    The explorer will be drawn across the surface of the restoration toward the tooth

    Time frame: 6 months

  4. Distance penetrated by the Explorer at the tooth restoration interface

    The explorer will be drawn across the surface of the restoration toward the tooth

    Time frame: 12 months

  5. The degree of mismatch from the normal range of tooth shades and translucency

    Visual inspection to check the proximity of the shade from the natural tooth

    Time frame: during procedure

  6. The degree of mismatch from the normal range of tooth shades and translucency

    Visual inspection to check the proximity of the shade from the natural tooth

    Time frame: 3 months

  7. The degree of mismatch from the normal range of tooth shades and translucency

    Visual inspection to check the proximity of the shade from the natural tooth

    Time frame: 6 months

  8. The degree of mismatch from the normal range of tooth shades and translucency

    Visual inspection to check the proximity of the shade from the natural tooth

    Time frame: 12 months

  9. Distance penetrated along the restoration in a pulpal direction

    Visual Inspection of the marginal discoloration different from the color of the restorative material and from the color of the adjacent tooth structure

    Time frame: during procedure

  10. Distance penetrated along the restoration in a pulpal direction

    Visual Inspection of the marginal discoloration different from the color of the restorative material and from the color of the adjacent tooth structure

    Time frame: 3 months

  11. Distance penetrated along the restoration in a pulpal direction

    Visual Inspection of the marginal discoloration different from the color of the restorative material and from the color of the adjacent tooth structure

    Time frame: 6 months

  12. Distance penetrated along the restoration in a pulpal direction

    Visual Inspection of the marginal discoloration different from the color of the restorative material and from the color of the adjacent tooth structure

    Time frame: 12 months

  13. Distance penetrated due to secondary caries by visual evidence of dark keep discoloration adjacent to the restoration but not directly associated with cavosurface margins

    Visual inspection of discoloration that occurs on the tooth after the filling has been used for a period of time

    Time frame: during procedure

  14. Distance penetrated due to secondary caries by visual evidence of dark keep discoloration adjacent to the restoration but not directly associated with cavosurface margins

    Visual inspection of discoloration that occurs on the tooth after the filling has been used for a period of time

    Time frame: 3 months

  15. Distance penetrated due to secondary caries by visual evidence of dark keep discoloration adjacent to the restoration but not directly associated with cavosurface margins

    Visual inspection of discoloration that occurs on the tooth after the filling has been used for a period of time

    Time frame: 6 months

  16. Distance penetrated due to secondary caries by visual evidence of dark keep discoloration adjacent to the restoration but not directly associated with cavosurface margins

    Visual inspection of discoloration that occurs on the tooth after the filling has been used for a period of time

    Time frame: 12 months

  17. Area of continuous movement of an explorer across the surface of the restoration

    Surface texture is highly polished or gritty containing supramicron-sized particles or Surface pitting is coarse to inhibit the continuous movement of an explorer across the surface

    Time frame: during procedure

  18. Area of continuous movement of an explorer across the surface of the restoration

    Surface texture is highly polished or gritty containing supramicron-sized particles or Surface pitting is coarse to inhibit the continuous movement of an explorer across the surface

    Time frame: 3 months

  19. Area of continuous movement of an explorer across the surface of the restoration

    Surface texture is highly polished or gritty containing supramicron-sized particles or Surface pitting is coarse to inhibit the continuous movement of an explorer across the surface

    Time frame: 6 months

  20. Area of continuous movement of an explorer across the surface of the restoration

    Surface texture is highly polished or gritty containing supramicron-sized particles or Surface pitting is coarse to inhibit the continuous movement of an explorer across the surface

    Time frame: 12 months

  21. Distance seen when the side of the explorer is placed tangentially across the restoration, by which it is not touching two opposing cavosurface line angles at the same time.

    Visual inspection and explorer to check the shape and structure of the restoration

    Time frame: during procedure

  22. Distance seen when the side of the explorer is placed tangentially across the restoration, by which it is not touching two opposing cavosurface line angles at the same time.

    Visual inspection and explorer to check the shape and structure of the restoration

    Time frame: 3 months

  23. Distance seen when the side of the explorer is placed tangentially across the restoration, by which it is not touching two opposing cavosurface line angles at the same time.

    Visual inspection and explorer to check the shape and structure of the restoration

    Time frame: 6 months

  24. Distance seen when the side of the explorer is placed tangentially across the restoration, by which it is not touching two opposing cavosurface line angles at the same time.

    Visual inspection and explorer to check the shape and structure of the restoration

    Time frame: 12 months

  25. Pain due to dentin hypersensitivity (evaporative stimulus)

    Pain arising from dentin hypersensitivity around the restoration stimulated by air blast measured by YES or NO scale

    Time frame: during procedure

  26. Pain due to dentin hypersensitivity (evaporative stimulus)

    Pain arising from dentin hypersensitivity around the restoration stimulated by air blast measured by YES or NO scale

    Time frame: 3 months

  27. Pain due to dentin hypersensitivity (evaporative stimulus)

    Pain arising from dentin hypersensitivity around the restoration stimulated by air blast measured by YES or NO scale

    Time frame: 6 months

  28. Pain due to dentin hypersensitivity (evaporative stimulus)

    Pain arising from dentin hypersensitivity around the restoration stimulated by air blast measured by YES or NO scale

    Time frame: 12 months

07

Study locations

1 site
  • Cairo University
    Cairo, Manial 00202, Egypt
08

References and documents

Individual participant data

Plan to share: Yes — Undecided: It is not yet known if there will be a plan to make IPD available.

Supporting information: Study protocol, Sap, Csr

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04463342
Lead sponsor
Cairo University
Responsible party
Mahmoud Magdy Eldamanhoury (Principal investigator, Cairo University) — Principal investigator
First posted
Jul 9, 2020
Start date
Sep 3, 2019
Primary completion
Jan 10, 2020
Completion
Feb 10, 2021
Last update
Mar 26, 2025

Study contacts

Mahmoud M Eldamanhoury, Master
principal investigator · Cairo University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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