Dental DiseasesEdelweissNCT05984472
3-year Clinical Performance of Prefabricated and Composite Veneers
A study testing Edelweiss prefabricated veneers and Ceram-X Duo SphereTec with U-Veneer in people with Dental Diseases and Tooth Discoloration, run by Ege University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study was to evaluate the clinical performances of Edelweiss prefabricated veneers and direct resin composite restorations (Ceram-X Duo SphereTec) performed with U- veneer transparent templates used for anterior diastema closure and tooth reshaping over 3-year. Read more about this study
- Who is it for?
- Ages 18 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Diseases, Tooth Discoloration
- What is being tested?
- Edelweiss prefabricated veneers and Ceram-X Duo SphereTec with U-Veneer
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 21 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 Jan 2019to 15 Jan 2020
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 18 to 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Being healthy without any chronic disease
- Having diastema, peg lateral or enamel defect in the anterior teeth
- Not having an occlusal anomaly such as bruxism or anterior crossbite
- Having a good oral hygiene
- Agreeing to come to the recall sessions regularly for 18 months
- Being over the age of 18
Who cannot join
- Having uncontrolled parafunction such as bruxism or anterior deep bite
- Having insufficient oral hygiene
- Being pregnant
- Having a systemic disease
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Ege University School of Dentistry Department of Restorative
Izmir, Bornova, 35040
About this study
Official title: 3-year Clinical Performance of Prefabricated and Clear Template-formed Resin Composite Veneers
The aim of this study was to evaluate the clinical performances of Edelweiss prefabricated veneers and direct resin composite restorations (Ceram-X Duo SphereTec) performed with U- veneer transparent templates used for anterior diastema closure and tooth reshaping over 3-year.
The patient group consisted of individuals who applied for aesthetic complaints on their anterior teeth. 21 volunteer individuals without systemic disease were included in the study. Patients were randomly selected for each group. In Group 1; 38 teeth (10 patients) were restored with Edelweiss prefabricated veneers (Edelweiss Dentistry) in combination with Edelweiss nanohybrid resin composite (Edelweiss Dentistry) and Prime\&Bond Universal (Dentsply Sirona) adhesive system. In Group 2; 36 teeth (11 patients) were restored with Ceram-X Duo SphereTec (Dentsply Sirona) resin composite in combination with U- veneer (Ultradent) transparent templates and Prime\&Bond Universal adhesive systems. Properties of the restorations were evaluated at baseline, 6, 12, 24, and 36 months using Modified Ryge Criteria (USPHS Criteria). Data were evaluated using Chi-Square and Fisher's Exact tests (p=0.05).
Read the detailed description
The aim of this study was to evaluate the clinical performances of Edelweiss prefabricated veneers and direct resin composite restorations (Ceram-X Duo SphereTec) performed with U- veneer transparent templates used for anterior diastema closure and tooth reshaping over 3-year.
The study protocol was approved by the Ethical Committee of Ege University, Izmir, Turkey (18-11.1T/15; 28.11.2018). 21 patients (1 male, 20 females, mean age: 35) with aesthetic complaints on their anterior teeth were treated with 74 restorations. 21 volunteer individuals without systemic disease were included in the study. Patients were randomly selected for each group. In Group 1; 38 teeth (10 patients) were restored with Edelweiss prefabricated veneers (Edelweiss Dentistry) in combination with Edelweiss nanohybrid resin composite (Edelweiss Dentistry) and Prime\&Bond Universal (Dentsply Sirona) adhesive system. In Group 2; 36 teeth (11 patients) were restored with Ceram-X Duo SphereTec (Dentsply Sirona) resin composite in combination with U- veneer (Ultradent) transparent templates and Prime\&Bond Universal adhesive systems.
Periodontal treatments, fillings, and bleaching treatments were performed, if necessary, before any veneer treatment. For the pre-treatment records; 3 photographs (smile, anterior occlusion, and upper anterior teeth alone) were taken from each patient. The "Button Try" technique was used for color selection in both groups. Edelweiss sizing guide was used for size selection in Group 1. U-Veneer (Ultradent) transparent templates were tried on the labial surfaces of teeth to select the correct size in Group 2. Then teeth were cleaned with non-fluoride pumice (Cleanic; Kerr Dental, ABD) using a polishing brush. Isolation of the teeth and retraction of the lips were achieved with a disposable mouth retractor (OptraGate, Ivoclar Vivadent). Prefabricated veneers were prepared for the cementation process in Group 1. Then the labial surfaces were etched using 36% phosphoric acid for 30 s. The etched surfaces were rinsed for 30 s and dried. Prime\&Bond Universal (Dentsply Sirona) adhesive system was applied on the labial surfaces of the teeth in accordance with user instructions in both groups. In Group 1; Edelweiss nano hybrid resin composite was placed on the inner surfaces of the prefabricated veneers before being applied on appropriate teeth. Then the restorations were light-cured for 40 s from each surface (D-Light Pro, GC). In Group 2; Ceram-X Duo SphereTec (Dentsply Sirona) nanohybrid resin composite with dentin color was placed on the labial surfaces of the teeth and light-cured (D-Light Pro, GC). After that layer, Ceram-X Duo SphereTec (Dentsply Sirona) enamel shades were placed on the inner surface of the transparent template and pressed against the labial surface of the tooth. After the removal of the excess materials, the resin composite veneer was light-cured for 20 s from each surface. Then the transparent template was removed.
In both groups; gingival borders were adapted with contouring and polishing discs (Super-Snap Rainbow Technique Kit, SHOFU). Then proximal surfaces were polished using proximal sandpaper strips. Occlusion was checked for premature contacts. Two calibrated observers who were blinded to the objective of this study performed the evaluations. Color match, marginal adaptation, marginal discoloration, anatomic form, retention, secondary caries, and gloss retention were the properties evaluated for the restorations at baseline, 6, 12, 24, and 36 months using Modified Ryge Criteria (USPHS Criteria). Data were evaluated using the Chi-Square and Fisher's Exact tests (p=0.05).
- Conditions
- Dental Diseases, Tooth Discoloration
- Being tested
- Edelweiss prefabricated veneers, Ceram-X Duo SphereTec with U-Veneer
- Keywords
- veneers, anterior restorations, resin composite, prefabricated veneers
- Medical subject headings
- Stomatognathic Diseases, Tooth Discoloration
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Edelweiss prefabricated veneersProcedure or surgery
Individual Randomized Clinical Trial
Ceram-X Duo SphereTec with U-VeneerProcedure or surgery
Ceram-X Duo SphereTec with U-Veneer
| Study group | Role | What they receive |
|---|---|---|
| Edelweiss Prefabricated Veneers | Active comparator | Edelweiss veneers (device 1) were randomly applied to patients. The teeth were evaluated in terms of color and size matching in order to select the correct veneers. Edelweiss sizing guide was used for size selection. Prefabricated veneers were adapted to the teeth' surfaces. Then, the inner surfaces of the prefabricated veneers were roughened to obtain better mechanical retention. Then the labial surfaces of the teeth were etched using 36% phosphoric acid. The etched surfaces were rinsed and dried. An adhesive system was applied to the teeth. Prefabricated veneers' inner surfaces were cleaned with alcohol, and Veneer Bond dental adhesive was applied. Edelweiss nanohybrid resin composite was placed on the inner surfaces of the veneers and transferred to the teeth. These restorations were light-cured for 40 s Gingival borders were adapted with contouring and polishing discs (intervention 1). Receives: Procedure: Edelweiss prefabricated veneers |
| Ceram-X Duo SphereTec with U-Veneer | Active comparator | Direct resin composite restorations were randomly applied to patients. Ceram-X Duo SphereTec resin composite (device 2) was used for color selection. Then U-Veneer transparent templates were tried to select their correct size. After the preparation, the labial surfaces of the teeth were etched using 36% phosphoric acid. The etched surfaces were then rinsed and dried. An adhesive system was applied to the teeth. Then Ceram-X Duo SphereTec nanohybrid resin composite with dentin shade was placed on labial surfaces of teeth and was light-cured. After that Ceram-X Duo SphereTec nanohybrid resin composite enamel shade was placed on the inner surface of the transparent template and was transferred to the tooth. After that, the resin composite veneer was light-cured for 20 s from each surface. The transparent template was removed. Gingival borders were adapted with contouring and polishing discs. Then proximal surfaces were polished using proximal sandpaper strips (intervention 2). Receives: Procedure: Ceram-X Duo SphereTec with U-Veneer |
What is being measured
The primary outcome is the main question the study is designed to answer.
Marginal discoloration of prefabricated and resin composite veneers
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding marginal discoloration by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth.
Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth.
Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Measured: 3 years
Marginal adaptation of prefabricated and resin composite veneers
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding marginal adaptation by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth.
Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth.
Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Measured: 3 years
Retention rates of prefabricated and resin composite veneers
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding retention rates by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth.
Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth.
Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Measured: 3 years
Anatomic form of prefabricated and resin composite veneers
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding anatomic form by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth.
Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth.
Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Measured: 3 years
Color changes of prefabricated and resin composite veneers
Health Service criteria regarding color changes by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth.
Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth.
Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Measured: 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Aug 2023
- Study start15 Jan 2019
- Primary completion30 Dec 2019
- Study completion15 Jan 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Dental DiseasesStudies of the same condition, open and under way.
- More trials run by Ege UniversityThe sponsor's other registered studies.
- 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
- Model description
- Individual Randomized Assignment
- Masking
- Double blind
- Who is masked
- Participant, Care provider
- Enrolment
- 21 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ege University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sebnem Turkun, Ege University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05984472
- Sponsor's protocol ID
- 18-11.1T/15
- Acronym
- Edelweiss
- Status last verified
- Aug 2023
- First submitted
- 1 Aug 2023
- Last updated
- 9 Aug 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Bilen H, Turkun LS. 6-year clinical performance of prefabricated and clear template-formed resin composite veneers. Clin Oral Investig. 2025 Oct 23;29(11):524. doi: 10.1007/s00784-025-06575-z.
PubMed 41125803
Study at a glance
From the registry record, last updated by the sponsor on 9 Aug 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 3-year Clinical Performance of Prefabricated and Clear Template-formed Resin Composite Veneers
- ClinicalTrials.gov ID
- NCT05984472
- Acronym / sponsor ID
- Edelweiss / 18-11.1T/15
- Conditions
- Dental Diseases, Tooth Discoloration
- Keywords
- veneers, anterior restorations, resin composite, prefabricated veneers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 21 participants (actual)
- Lead sponsor
- Ege UniversityUniversity, hospital or other
- Study start
- 15 Jan 2019 (actual)
- Primary completion
- 30 Dec 2019 (actual)
- Study completion
- 15 Jan 2020 (actual)
- First posted
- 9 Aug 2023 (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.
The aim of this study was to evaluate the clinical performances of Edelweiss prefabricated veneers and direct resin composite restorations (Ceram-X Duo SphereTec) performed with U- veneer transparent templates used for anterior diastema closure and tooth reshaping over 3-year.
The patient group consisted of individuals who applied for aesthetic complaints on their anterior teeth. 21 volunteer individuals without systemic disease were included in the study. Patients were randomly selected for each group. In Group 1; 38 teeth (10 patients) were restored with Edelweiss prefabricated veneers (Edelweiss Dentistry) in combination with Edelweiss nanohybrid resin composite (Edelweiss Dentistry) and Prime\&Bond Universal (Dentsply Sirona) adhesive system. In Group 2; 36 teeth (11 patients) were restored with Ceram-X Duo SphereTec (Dentsply Sirona) resin composite in combination with U- veneer (Ultradent) transparent templates and Prime\&Bond Universal adhesive systems. Properties of the restorations were evaluated at baseline, 6, 12, 24, and 36 months using Modified Ryge Criteria (USPHS Criteria). Data were evaluated using Chi-Square and Fisher's Exact tests (p=0.05).
Detailed description
The aim of this study was to evaluate the clinical performances of Edelweiss prefabricated veneers and direct resin composite restorations (Ceram-X Duo SphereTec) performed with U- veneer transparent templates used for anterior diastema closure and tooth reshaping over 3-year.
The study protocol was approved by the Ethical Committee of Ege University, Izmir, Turkey (18-11.1T/15; 28.11.2018). 21 patients (1 male, 20 females, mean age: 35) with aesthetic complaints on their anterior teeth were treated with 74 restorations. 21 volunteer individuals without systemic disease were included in the study. Patients were randomly selected for each group. In Group 1; 38 teeth (10 patients) were restored with Edelweiss prefabricated veneers (Edelweiss Dentistry) in combination with Edelweiss nanohybrid resin composite (Edelweiss Dentistry) and Prime\&Bond Universal (Dentsply Sirona) adhesive system. In Group 2; 36 teeth (11 patients) were restored with Ceram-X Duo SphereTec (Dentsply Sirona) resin composite in combination with U- veneer (Ultradent) transparent templates and Prime\&Bond Universal adhesive systems.
Periodontal treatments, fillings, and bleaching treatments were performed, if necessary, before any veneer treatment. For the pre-treatment records; 3 photographs (smile, anterior occlusion, and upper anterior teeth alone) were taken from each patient. The "Button Try" technique was used for color selection in both groups. Edelweiss sizing guide was used for size selection in Group 1. U-Veneer (Ultradent) transparent templates were tried on the labial surfaces of teeth to select the correct size in Group 2. Then teeth were cleaned with non-fluoride pumice (Cleanic; Kerr Dental, ABD) using a polishing brush. Isolation of the teeth and retraction of the lips were achieved with a disposable mouth retractor (OptraGate, Ivoclar Vivadent). Prefabricated veneers were prepared for the cementation process in Group 1. Then the labial surfaces were etched using 36% phosphoric acid for 30 s. The etched surfaces were rinsed for 30 s and dried. Prime\&Bond Universal (Dentsply Sirona) adhesive system was applied on the labial surfaces of the teeth in accordance with user instructions in both groups. In Group 1; Edelweiss nano hybrid resin composite was placed on the inner surfaces of the prefabricated veneers before being applied on appropriate teeth. Then the restorations were light-cured for 40 s from each surface (D-Light Pro, GC). In Group 2; Ceram-X Duo SphereTec (Dentsply Sirona) nanohybrid resin composite with dentin color was placed on the labial surfaces of the teeth and light-cured (D-Light Pro, GC). After that layer, Ceram-X Duo SphereTec (Dentsply Sirona) enamel shades were placed on the inner surface of the transparent template and pressed against the labial surface of the tooth. After the removal of the excess materials, the resin composite veneer was light-cured for 20 s from each surface. Then the transparent template was removed.
In both groups; gingival borders were adapted with contouring and polishing discs (Super-Snap Rainbow Technique Kit, SHOFU). Then proximal surfaces were polished using proximal sandpaper strips. Occlusion was checked for premature contacts. Two calibrated observers who were blinded to the objective of this study performed the evaluations. Color match, marginal adaptation, marginal discoloration, anatomic form, retention, secondary caries, and gloss retention were the properties evaluated for the restorations at baseline, 6, 12, 24, and 36 months using Modified Ryge Criteria (USPHS Criteria). Data were evaluated using the Chi-Square and Fisher's Exact tests (p=0.05).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, care provider)
- Number of arms
- 2
- Model description
- Individual Randomized Assignment
| Arm | Type | Receives |
|---|---|---|
| Edelweiss Prefabricated Veneers | Active comparator | Procedure: Edelweiss prefabricated veneersEdelweiss veneers (device 1) were randomly applied to patients. The teeth were evaluated in terms of color and size matching in order to select the correct veneers. Edelweiss sizing guide was used for size selection. Prefabricated veneers were adapted to the teeth' surfaces. Then, the inner surfaces of the prefabricated veneers were roughened to obtain better mechanical retention. Then the labial surfaces of the teeth were etched using 36% phosphoric acid. The etched surfaces were rinsed and dried. An adhesive system was applied to the teeth. Prefabricated veneers' inner surfaces were cleaned with alcohol, and Veneer Bond dental adhesive was applied. Edelweiss nanohybrid resin composite was placed on the inner surfaces of the veneers and transferred to the teeth. These restorations were light-cured for 40 s Gingival borders were adapted with contouring and polishing discs (intervention 1). |
| Ceram-X Duo SphereTec with U-Veneer | Active comparator | Procedure: Ceram-X Duo SphereTec with U-VeneerDirect resin composite restorations were randomly applied to patients. Ceram-X Duo SphereTec resin composite (device 2) was used for color selection. Then U-Veneer transparent templates were tried to select their correct size. After the preparation, the labial surfaces of the teeth were etched using 36% phosphoric acid. The etched surfaces were then rinsed and dried. An adhesive system was applied to the teeth. Then Ceram-X Duo SphereTec nanohybrid resin composite with dentin shade was placed on labial surfaces of teeth and was light-cured. After that Ceram-X Duo SphereTec nanohybrid resin composite enamel shade was placed on the inner surface of the transparent template and was transferred to the tooth. After that, the resin composite veneer was light-cured for 20 s from each surface. The transparent template was removed. Gingival borders were adapted with contouring and polishing discs. Then proximal surfaces were polished using proximal sandpaper strips (intervention 2). |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- Being healthy without any chronic disease
- Having diastema, peg lateral or enamel defect in the anterior teeth
- Not having an occlusal anomaly such as bruxism or anterior crossbite
- Having a good oral hygiene
- Agreeing to come to the recall sessions regularly for 18 months
Key exclusion criteria (4 listed)
- Having uncontrolled parafunction such as bruxism or anterior deep bite
- Having insufficient oral hygiene
- Being pregnant
- Having a systemic 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 |
|---|---|---|
| Edelweiss prefabricated veneersIndividual Randomized Clinical Trial | Procedure or surgery | Edelweiss Prefabricated Veneers |
| Ceram-X Duo SphereTec with U-VeneerCeram-X Duo SphereTec with U-Veneer | Procedure or surgery | Ceram-X Duo SphereTec with U-Veneer |
Primary outcome
Marginal discoloration of prefabricated and resin composite veneers
Time frame: 3 years
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding marginal discoloration by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth. Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth. Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Marginal adaptation of prefabricated and resin composite veneers
Time frame: 3 years
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding marginal adaptation by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth. Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth. Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Retention rates of prefabricated and resin composite veneers
Time frame: 3 years
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding retention rates by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth. Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth. Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Anatomic form of prefabricated and resin composite veneers
Time frame: 3 years
Evaluating differently veneer options on anterior teeth with United State Public Health Service criteria regarding anatomic form by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth. Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth. Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Color changes of prefabricated and resin composite veneers
Time frame: 3 years
Health Service criteria regarding color changes by 2 independent evaluators Marginal discolouration was evaluated by 2 independent clinicians. Visual inspection with a mirror at 18 inches was performed . A score means the higher score of clinical acceptability while C score means that the restoration has failed and needs to be replaced. Alpha: No discoloration anywhere along the margin between the restoration and the adjacent tooth. Bravo: Slight discoloration along the margin between the restoration and the adjacent tooth. Charlie: The discoloration penetrated along the margin of the restorative material in a pulpal direction.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Aug 2023.
- Derived from this study: PubMed 41125803Bilen H, Turkun LS. 6-year clinical performance of prefabricated and clear template-formed resin composite veneers. Clin Oral Investig. 2025 Oct 23;29(11):524. doi: 10.1007/s00784-025-06575-z.
- Individual participant dataSharing planned: No
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Edelweiss prefabricated veneers and Ceram-X Duo SphereTec with U-Veneer in people with Dental Diseases and Tooth Discoloration, run by Ege University at 1 site in Turkey (Türkiye).
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 6 inclusion and 4 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: finished, as of the sponsor's last update on 9 Aug 2023. 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 Turkey (Türkiye). 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Marginal discoloration of prefabricated and resin composite veneers (time frame: 3 years). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05984472, which also lists 1 linked publication.
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 9 Aug 2023.