NCT04488380

Brief Summary

The aim of this randomised-controlled, single-blind, split-mouth, and single-centre clinical trial was to evaluate the 2-year clinical performances of a high-viscosity glass ionomer and nanohybrid composite resin in occlusal restorations on mandibular second molar teeth in patients at risk for salivary contamination.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2015

Shorter than P25 for not_applicable

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 12, 2015

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 20, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 20, 2016

Completed
4.2 years until next milestone

First Submitted

Initial submission to the registry

July 13, 2020

Completed
15 days until next milestone

First Posted

Study publicly available on registry

July 28, 2020

Completed
Last Updated

July 28, 2020

Status Verified

July 1, 2020

Enrollment Period

6 months

First QC Date

July 13, 2020

Last Update Submit

July 22, 2020

Conditions

Keywords

restorative glass ionomer

Outcome Measures

Primary Outcomes (4)

  • Surface lustre of dental restorations

    Surface lustre of dental restorations were observed by visual examination of two examiners. Restorations were scored 1 to 5 according to FDI criteria (1. Lustre comparable to enamel, 2. Slightly dull, not noticeable from speaking distance, 3.Dull surface but acceptable if covered with film of saliva, 4. Rough surface, cannot be masked by saliva film, simple polishing is not sufficient. Further intervention necessary, 5. Very rough, unacceptable plaque retentive surface.).

    Changes of dental restorations regarding surface lustre were observed at 1-week, 6-month, 1-year, and 2-year results were compared between two restorative material and change of material suring the study is observed

  • Staining restoration surface and restoration margin

    Surface lustre of dental restorations were observed by visual examination of two examiners. Restorations were scored 1 to 5 according to FDI criteria (1. No surface staining, no marginal staining, 2. Minor surface staining, minor marginal staining easily removable by polishing, 3. oderate surface staining and moderate marginal staining that may also present on other teeth, not esthetically unacceptable, 4. Unacceptable surface staining on the restoration and major intervention necessary for improvement and Pronounced marginal staining; major intervention necessary for improvement, 5. Severe surface staining and/or subsurface staining, generalized or localized, not accessible for intervention and deep marginal staining, not accessible for intervention.).

    Changes of dental restorations regarding surface lustre were observed at 1-week, 6-month, 1-year, and 2-year results were compared between two restorative material and change of material suring the study is observed

  • Fracture of material and retention

    Fracture of material and retention of dental restorations were observed by visual examination of two examiners. Restorations were scored 1 to 5 according to FDI criteria (1. No fractures / cracks, 2. Small hairline crack. 3. Two or more or larger hairline cracks and/or material chip fracture not affecting the marginal integrity or approximal contact, 4. Material chip fractures which damage marginal quality or, approximal contacts. 5. (Partial or complete) loss of restoration or multiple fractures.).

    Changes of dental restorations regarding Fracture of material and retention were observed at 1-week, 6-month, 1-year, and 2-year results were compared between two restorative material and change of material suring the study is observed

  • Recurrence of caries

    Recurrence of caries were observed by visual examination of two examiners. Restorations were scored 1 to 5 according to FDI criteria (1. No secondary or primary caries 2. Small and localized. 3 Larger areas of 1. Demineralisation 2. Erosion or 3. Abrasion/abfraction, dentine not exposed Only preventive measures necessary 4. Caries with cavitation and suspected undermining caries Localized and accessible can be repaired, 5. Deep caries or exposed dentine that is not accessible for repair of restoration.)

    Changes of dental restorations regarding recurrence of caries were observed at 1-week, 6-month, 1-year, and 2-year results were compared between two restorative material and change of material suring the study is observed

Study Arms (2)

high-viscosity glass ionomer restoration

EXPERIMENTAL

One of the carious mandibular 2nd molar teeth (according to randomisation) will be restored with high-viscosity glass ionomer restoration (Equia, GC)

Other: dental restoration

nano-hybrid composite resin

EXPERIMENTAL

One of the carious mandibular 2nd molar teeth will be restored with nano-hybrid composite resin (GrandioSO, Voco)

Other: dental restoration

Interventions

Restoration of carious mandibular 2nd molar teeth either with high viscosity glass ionomer or nanohybrid composite resin

high-viscosity glass ionomer restorationnano-hybrid composite resin

Eligibility Criteria

Age15 Years - 19 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • good health and oral hygiene,
  • occlusal carious lesions on both mandibular second molars,
  • mandibular second molars with mesial and occlusal contacts,
  • contraindication to the use of rubber dam,
  • the ability to return for periodic follow-up visits.

You may not qualify if:

  • restoration on mandibular second molars.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (3)

  • Gurgan S, Kutuk ZB, Yalcin Cakir F, Ergin E. A randomized controlled 10 years follow up of a glass ionomer restorative material in class I and class II cavities. J Dent. 2020 Mar;94:103175. doi: 10.1016/j.jdent.2019.07.013. Epub 2019 Jul 25.

    PMID: 31351909BACKGROUND
  • Turkun LS, Kanik O. A Prospective Six-Year Clinical Study Evaluating Reinforced Glass Ionomer Cements with Resin Coating on Posterior Teeth: Quo Vadis? Oper Dent. 2016 Nov/Dec;41(6):587-598. doi: 10.2341/15-331-C. Epub 2016 Aug 29.

    PMID: 27571238BACKGROUND
  • Hatirli H, Yasa B, Celik EU. Clinical performance of high-viscosity glass ionomer and resin composite on minimally invasive occlusal restorations performed without rubber-dam isolation: a two-year randomised split-mouth study. Clin Oral Investig. 2021 Sep;25(9):5493-5503. doi: 10.1007/s00784-021-03857-0. Epub 2021 Mar 8.

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: One of the Glass ionomer restorative or Resin composite restorative materials were applied to carious mandibular 2nd molar teeth.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 13, 2020

First Posted

July 28, 2020

Study Start

October 12, 2015

Primary Completion

April 20, 2016

Study Completion

April 20, 2016

Last Updated

July 28, 2020

Record last verified: 2020-07