NCT07491809

Brief 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 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:

  1. 1.Restoration condition (defects related to restoration - ceramic fractures, cracks, loss of retention, discolouration);
  2. 2.Condition of the abutment teeth (secondary caries, endodontic complications);
  3. 3.Periodontal condition (probing depth, bleeding on probing, gum recessions);
  4. 4.Patient satisfaction questionnaire (OES).

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
37mo left

Started Sep 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress22%
Sep 2025Aug 2029

Study Start

First participant enrolled

September 30, 2025

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

March 16, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 24, 2026

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Completed
3.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2029

Expected
Last Updated

March 24, 2026

Status Verified

March 1, 2026

Enrollment Period

8 months

First QC Date

March 16, 2026

Last Update Submit

March 19, 2026

Conditions

Resin CementsDental VeneersOrofacial Esthetic Scale

Outcome Measures

Primary Outcomes (1)

  • 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.

    6 months, 1 year, 3 years

Secondary Outcomes (1)

  • Comparison of 2 veneer cements in terms of complications and discolouration

    6 months, 1 year, 3 years

Other Outcomes (1)

  • Success and survival of porcelain veneers

    6 months, 1 year, 3 years

Study Arms (2)

Porcelain veneers

ACTIVE COMPARATOR

Patients receiving porcelain veneers as an aesthetic treatment option

Procedure: Porcelain veneers

Direct composite restoration

ACTIVE COMPARATOR

Patients receiving direct composite injection moulding as an aesthetic treatment option

Procedure: Direct composite

Interventions

Porcelain veneersPROCEDURE

Teeth preparation, laboratory made porcelain restoration cementation with 2 different cements

Also known as: Dental veneers
Porcelain veneers
Direct compositePROCEDURE

Digital modelling of teeth shapes, restoration with injectable composite directly

Also known as: Composite restorations
Direct composite restoration

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • healthy periodontium, needs at least 4 veneers, enamel around all veneer borders

You may not qualify if:

  • heavy bruxism, poor oral hygiene, active periodontal disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Riga Stradins University

Riga, LV-1007, Latvia

RECRUITING

MeSH Terms

Interventions

Dental Veneers

Intervention Hierarchy (Ancestors)

Dental ProsthesisProsthodonticsDentistryProstheses and ImplantsEquipment and Supplies

Study Officials

  • Christel Larsson, Professor

    Malmo University

    STUDY DIRECTOR

  • Una Soboleva, Professor

    Riga Stradins University

    STUDY DIRECTOR

Central Study Contacts

Mara Gaile, DDS

CONTACT

+37126010210mara.gaile@rsu.lv

Una Soboleva, Professor

CONTACT

+37129441268una.soboleva@rsu.lv

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Researcher, D.D.S.

Study Record Dates

First Submitted

March 16, 2026

First Posted

March 24, 2026

Study Start

September 30, 2025

Primary Completion

June 1, 2026

Study Completion (Estimated)

August 1, 2029

Last Updated

March 24, 2026

Record last verified: 2026-03

Locations

LA(1)