Adhesive Cementation Materials and Techniques in Aesthetic Dentistry

NCT07491809 — Not applicable, Recruiting, 60 participants, Riga Stradins University

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Adhesive Cementation Materials and Techniques in Aesthetic Dentistry and Their Effect on the Longevity of Porcelain Veneers

Registry	NCT07491809
Status	Recruiting
Phase	Not applicable
Study type	Interventional; randomized, parallel, masking: none, treatment
Enrollment	60 (Estimated)
Sponsor	Riga Stradins University (Other); collaborators: Malmö University, Kuraray Noritake Dental Inc.
Conditions	Dental Veneers, Resin Cements, Composite Restoration, Orofacial Esthetic Scale
Interventions	Porcelain veneers, Direct composite (Procedure)
Dates	start 2025-09-30, primary completion 2026-06-01 (estimated), completion 2029-08-01 (estimated), first posted 2026-03-24, last updated 2026-04-06
Locations	1 site in Latvia

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

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+Arms and interventions

Arm	Type	Interventions	Description
Porcelain veneers	Active comparator	Procedure: Porcelain veneers	Patients receiving porcelain veneers as an aesthetic treatment option
Direct composite restoration	Active comparator	Procedure: Direct composite	Patients receiving direct composite injection moulding as an aesthetic treatment option

Porcelain veneers (Procedure), also known as Dental veneers: Teeth preparation, laboratory made porcelain restoration cementation with 2 different cements
Direct composite (Procedure), also known as Composite restorations: Digital modelling of teeth shapes, restoration with injectable composite directly

+Outcome measures

Primary outcomes

Patient satisfaction with porcelain veneers vs direct composite restorations using OES (orofacial aesthetic scale) [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.

Secondary outcomes

Comparison of 2 veneer cements in terms of complications and discolouration [6 months, 1 year, 3 years]: 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);

Other outcomes

Success and survival of porcelain veneers [6 months, 1 year, 3 years]: Success - veneer is present with no biological, technical or aesthetic complications. It is functional, stable, and free from disease. Calculated in percentage from the total count of cemented veneers. Survival - restoration that remains in the mouth and is functional at the end of a specific observation period, regardless of its health status or complications. Calculated in percentage from the total count of the veneers.

+Eligibility

Sex: All

Inclusion Criteria:

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

Exclusion Criteria:

* heavy bruxism, poor oral hygiene, active periodontal disease

+Locations (1)

Facility	City	Country	Status
Riga Stradins University	Riga	Latvia	Recruiting

+Investigators

Christel Larsson, Professor, Study director, Malmo University
Una Soboleva, Professor, Study director, Riga Stradins University