Dental VeneersNCT07491809
Adhesive Cementation Materials and Techniques in Aesthetic Dentistry
A study testing Porcelain veneers and Direct composite in people with Dental Veneers and Resin Cements, run by Riga Stradins University at 1 site in Latvia.
Trial summary
AIM: To determine the most effective cementation method and resin cement material for long term success of esthetical restorations TASKS: 1. Compare Panavia Veneer LC (Kuraray Noritake) cement with universal Panavia V5 (Kuraray Noritake) cement for porcelain veneer cementation in terms of marginal defects and… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Dental Veneers, Resin Cements, Composite Restoration
- What is being tested?
- Porcelain veneers and Direct composite
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteLatvia
- Study dates
- 30 Sep 2025to Aug 2029
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- healthy periodontium, needs at least 4 veneers, enamel around all veneer borders
Who cannot join
- heavy bruxism, poor oral hygiene, active periodontal disease
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Latvia1 site, 1 recruiting
- Recruiting
Riga Stradins University
Riga, LV-1007
Una Soboleva, Professor, +37129441268, una.soboleva@rsu.lv
About this study
Official title: Adhesive Cementation Materials and Techniques in Aesthetic Dentistry and Their Effect on the Longevity of Porcelain Veneers
AIM: To determine the most effective cementation method and resin cement material for long term success of esthetical restorations TASKS: 1. Compare Panavia Veneer LC (Kuraray Noritake) cement with universal Panavia V5 (Kuraray Noritake) cement for porcelain veneer cementation in terms of marginal defects and discolouration; 2. Evaluating direct vs indirect restorations after 1-year and 3-year follow up periods in terms of patient satisfaction (evaluated by OES scale).
MATERIAL AND METHODS: Participants: Patients attending the Department of Prosthodontics at the RSU Institute of Stomatology, and willing to improve the aesthetics of front teeth with porcelain veneers. Approx. 30 patients. Inclusion criteria: healthy periodontium, needs 4 veneers, stable occlusion. Exclusion criteria: heavy bruxism, poor oral hygiene, active periodontal inflammation.
Read more
Veneer preparations will be done for maxillary anterior teeth approximately 0.5mm deep, involving the whole facial surface and keeping enamel around all borders. For digital impressions of preparations intra-oral scans with intraoral scanner (3Shape TRIOS 5 WIRELESS, Denmark) will be taken. Veneers will be fabricated according to the CAD/CAM technique. This will be a prospective paired design study, i.e., two different composite cements (Panavia V5 and Panavia Veneer LC) will be used for each patient, cementing two veneers with each of the cements.
Data on following variables will be collected:
- Restoration condition (defects related to restoration - ceramic fractures, cracks, loss of retention, discolouration);
- Condition of the abutment teeth (secondary caries, endodontic complications);
- Periodontal condition (probing depth, bleeding on probing, gum recessions);
- Patient satisfaction questionnaire (OES).
- Being tested
- Porcelain veneers, Direct composite
- Keywords
- Orofacial Esthetic Scale, Dental veneers, Direct composite restorations, Patient satisfaction, Resin cements
- Medical subject headings
- Patient Satisfaction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Porcelain veneersProcedure or surgery
Also called Dental veneers
Teeth preparation, laboratory made porcelain restoration cementation with 2 different cements
Direct compositeProcedure or surgery
Also called Composite restorations
Digital modelling of teeth shapes, restoration with injectable composite directly
| Study group | Role | What they receive |
|---|---|---|
| Porcelain veneers | Active comparator | Patients receiving porcelain veneers as an aesthetic treatment option Receives: Procedure: Porcelain veneers |
| Direct composite restoration | Active comparator | Patients receiving direct composite injection moulding as an aesthetic treatment option Receives: Procedure: Direct composite |
What is being measured
The primary outcome is the main question the study is designed to answer.
Patient satisfaction with porcelain veneers vs direct composite restorations using OES (orofacial aesthetic scale)
OES is a questionnaire with 8 questions regarding orofacial appearance. The higher the score, the more satisfied the patient is. 7 questions evaluate specific items, and number 8 is an overall assessment.
Measured: 6 months, 1 year, 3 years
Secondary outcomes (1)
Comparison of 2 veneer cements in terms of complications and discolouration
Data on following variables will be collected for all abutment teeth:
Restoration condition (defects related to restoration - ceramic fractures, cracks, loss of retention, discolouration; if present, calculated as a percentage from total restorations); Condition of the abutment teeth (secondary caries, endodontic complications; if present, calculated as a percentage from total restorations); Periodontal condition (probing depth in mm, bleeding on probing present or no; gum recessions in mm);
Measured: 6 months, 1 year, 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Mar 2026
- Study start30 Sep 2025
- Primary completionJun 2026 (estimated)
- Study completionAug 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental VeneersStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Riga Stradins University
- Sponsor type
- University, hospital or other
- Collaborators
- Malmö University, Kuraray Noritake Dental Inc.
- Responsible party
- Principal investigator, Mara Gaile, Riga Stradins University
- Investigators
- Christel Larsson, Professor, Study director, Malmo UniversityUna Soboleva, Professor, Study director, Riga Stradins University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07491809
- Sponsor's protocol ID
- 6-DN-20/2/2026
- Status last verified
- Mar 2026
- First submitted
- 16 Mar 2026
- Last updated
- 6 Apr 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 6 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Adhesive Cementation Materials and Techniques in Aesthetic Dentistry and Their Effect on the Longevity of Porcelain Veneers
- ClinicalTrials.gov ID
- NCT07491809
- Acronym / sponsor ID
- 6-DN-20/2/2026
- Keywords
- Orofacial Esthetic Scale, Dental veneers, Direct composite restorations, Patient satisfaction, Resin cements
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Riga Stradins UniversityUniversity, hospital or other
- Collaborators
- Malmö University, Kuraray Noritake Dental Inc.
- Study start
- 30 Sep 2025 (actual)
- Primary completion
- Jun 2026 (estimated)
- Study completion
- Aug 2029 (estimated)
- First posted
- 24 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
AIM: To determine the most effective cementation method and resin cement material for long term success of esthetical restorations TASKS: 1. Compare Panavia Veneer LC (Kuraray Noritake) cement with universal Panavia V5 (Kuraray Noritake) cement for porcelain veneer cementation in terms of marginal defects and discolouration; 2. Evaluating direct vs indirect restorations after 1-year and 3-year follow up periods in terms of patient satisfaction (evaluated by OES scale).
MATERIAL AND METHODS: Participants: Patients attending the Department of Prosthodontics at the RSU Institute of Stomatology, and willing to improve the aesthetics of front teeth with porcelain veneers. Approx. 30 patients. Inclusion criteria: healthy periodontium, needs 4 veneers, stable occlusion. Exclusion criteria: heavy bruxism, poor oral hygiene, active periodontal inflammation.
Veneer preparations will be done for maxillary anterior teeth approximately 0.5mm deep, involving the whole facial surface and keeping enamel around all borders. For digital impressions of preparations intra-oral scans with intraoral scanner (3Shape TRIOS 5 WIRELESS, Denmark) will be taken. Veneers will be fabricated according to the CAD/CAM technique. This will be a prospective paired design study, i.e., two different composite cements (Panavia V5 and Panavia Veneer LC) will be used for each patient, cementing two veneers with each of the cements.
Data on following variables will be collected:
- Restoration condition (defects related to restoration - ceramic fractures, cracks, loss of retention, discolouration);
- Condition of the abutment teeth (secondary caries, endodontic complications);
- Periodontal condition (probing depth, bleeding on probing, gum recessions);
- Patient satisfaction questionnaire (OES).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Porcelain veneers | Active comparator | Procedure: Porcelain veneersPatients receiving porcelain veneers as an aesthetic treatment option |
| Direct composite restoration | Active comparator | Procedure: Direct compositePatients receiving direct composite injection moulding as an aesthetic treatment option |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (1 listed)
- healthy periodontium, needs at least 4 veneers, enamel around all veneer borders
Key exclusion criteria (1 listed)
- heavy bruxism, poor oral hygiene, active periodontal disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Porcelain veneersAlso: Dental veneersTeeth preparation, laboratory made porcelain restoration cementation with 2 different cements | Procedure or surgery | Porcelain veneers |
| Direct compositeAlso: Composite restorationsDigital modelling of teeth shapes, restoration with injectable composite directly | Procedure or surgery | Direct composite restoration |
Primary outcome
Patient satisfaction with porcelain veneers vs direct composite restorations using OES (orofacial aesthetic scale)
Time frame: 6 months, 1 year, 3 years
OES is a questionnaire with 8 questions regarding orofacial appearance. The higher the score, the more satisfied the patient is. 7 questions evaluate specific items, and number 8 is an overall assessment.
1 secondary outcome
Comparison of 2 veneer cements in terms of complications and discolouration
Time frame: 6 months, 1 year, 3 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Apr 2026.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Christel Larsson, Professor study director
Malmo University
Una Soboleva, Professor study director
Riga Stradins University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Porcelain veneers and Direct composite in people with Dental Veneers and Resin Cements, run by Riga Stradins University at 1 site in Latvia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 6 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Latvia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Mara Gaile, DDS (+37126010210, mara.gaile@rsu.lv), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Patient satisfaction with porcelain veneers vs direct composite restorations using OES (orofacial aesthetic scale) (time frame: 6 months, 1 year, 3 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Apr 2026.