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Tooth FracturefacingsNCT03145597

Survival Rate of Adhesively Luted Veneers

A study testing Laminate veneer of composite and Laminate veneer of ceramic in people with Tooth Fracture, run by University Medical Center Groningen at 1 site in Netherlands.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The aims of this clinical study are: To evaluate the clinical performance between indirect composite and ceramic laminate veneers: Main interests are: colour stability of the restoration (digital measurement in follow up) failure mode of the restoration wear of the restoration and antagonist Hypothesis: The colour… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Tooth Fracture
What is being tested?
Laminate veneer of composite and Laminate veneer of ceramic
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
70 participants
Where
1 siteNetherlands
Study dates
1 Jun 2017to Dec 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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • The veneers will be placed on central incisors, lateral incisors, canines in the maxilla. Indications will involve replacing worn, discoloured composite restorations and existing veneers, or correcting discoloured, malformed and/or misaligned teeth.
  • An indication for closure of the open space (diastema)
  • No obvious untreated caries, dental health problems (regularly checked by a dentist).
  • No untreated periodontal disease (allowed are DPSI 1, 2, 3-)
  • Good or moderate oral hygiene (plaque score of less than 30% in anterior region before treatment).
  • Endodontic treatment with good outcome (root canal densely filled with gutta-percha 0.5-1.5 mm from apex) with only a restoration on palatinal side.
  • The patient agrees with the research protocol (signing of an agreement form, appendix 4)
  • 18 Year and older.

Who cannot join

  • Patients with only one tooth to restore, or two central incisors.
  • Considerable horizontal and/or vertical mobility of abutment teeth: tooth mobility index score 2 or 3.
  • Considerable periodontal disease without treatment (DPSI 3+ and 4)
  • Endodontic treatment with extensive loss of tooth tissue (more than 2/3 of crown is restored with restoration material).
  • Restoration of whole crown, more than 2/3 of coronal part of the teeth is restored.
  • Patients that still want to bleach their teeth or bleached teeth less than 3 weeks before the treatment.

Trial locations and contacts

1 site in 1 country.

marco Gresnigt, Phd contact

0031-50-3632608

marcogresnigt@yahoo.com

Mutlu Ozcan, Prof contact

mutluozcan@hotmail.com

Netherlands1 site, 1 recruiting
  • University Medical Center Groningen

    Groningen, 9713AV

    marco gresnigt, doctor, 0031647494611, marcogresnigt@yahoo.com

    marco gresnigt, doctor

    Recruiting

Other trials in Netherlands

About this study

Official title: Survival Rate of Adhesively Luted Veneers, an In-vivo Study

The aims of this clinical study are:

To evaluate the clinical performance between indirect composite and ceramic laminate veneers:

Read more

Main interests are:

  • colour stability of the restoration (digital measurement in follow up)
  • failure mode of the restoration
  • wear of the restoration and antagonist

Hypothesis:

  • The colour stability of indirect composite restorations will not be different from the ceramic restorations.
  • The indirect composite restorations will not be more prone to failure than the ceramic restorations.
  • Antagonist wear and restorative material wear will be similar for both ceramic and composite.

Material and Methods The laminates will be fabricated according to a specified protocol. In order to avoid possible noticeable differences in case of distinct levels of possible discoloration, a modified split mouth design is employed where the central incisors and the symmetric other teeth receive the same type of restoration. Randomization is based on the paired teeth and it is performed using the flip of a coin for the choice of material. Evaluation will be performed at baseline and at follow-up visits annually up to 2 years.

Read the detailed description

Patient recruitment: Patients will be recruited from the university clinic.

Intake: If the patient is included in the study following the inclusion and exclusion criteria, the patient will be evaluated using the evaluation form. All the data will be collected and impressions will be made. Using the impressions, a wax up will be made on stone models indicating the restorations to be fabricated. With a transparent mould, the situation will be duplicated in the mouth with spot etching and composite. By using this protocol minimal loss of tooth material is guaranteed.

Tooth Preparation: After prophylaxis, the teeth will be prepared in a controlled manner using special depth cutting laminate preparation burs (Intensive, Switzerland). The margins will extend to half the way to the inter-proximal contact area. The shape of the cervical margins will be maintained in chamfer form. The incisal edge will be prepared 1.5 mm to create an overlap to the palatinal region for the translucency area in the laminate veneers.

Conditioning the tooth surface: Rubberdam will be placed. The preparation surfaces will be etched with 35% phosphoric acid, rinsed thoroughly and dried followed by the application of primer and the bonding agent.

Conditioning the existing restorations: The existing composite restaurations will be conditioned using tribochemical silicacoating (CoJet, 30µm SiOx, 3M ESPE) in a Dentoprep (Ronvig, Denmark) intraoral sandblaster. Following this the restauration will be conditioned by silanisation.

Conditioning the composite veneers: The inner surfaces of the indirect composite laminates will rinsed with alcohol and thereafter conditioned using tribochemical silicacoating (CoJet, 30µm SiOx, 3M ESPE) using an (Ronvig, Denmark) intra-oral sandblaster. The sandblasting will be approx 13 sec until the inner surface of the restoration change colour visually. Following this the inner surface will be conditioned by silanisation.

Conditioning the ceramic veneers: The inner surfaces of the ceramic laminates will be conditioned with hydrofluoric acid 5% and rinsed in neutralizing agent, ultrasonically cleaned and then silanized.

After insertion, the excess composite will be removed using handinstruments and finishing burs under continuous water-cooling. Finally the margins will be polished using diamond polishing-paste with a rotating rubber cup. The interproximal surfaces will be finished with Sof-Lex polishing disks and strips.

Cementing the restorations: The cementation medium will be a dual-cure aesthetic adhesive cement Variolink veneer. All adhesive restorations will be cemented using ultrasonic insertion techniques. Cementation of the indirect restorations will be performed according to a protocol presented in appendix 2: "Clinical procedures".

Conditions
Tooth Fracture
Being tested
Laminate veneer of composite, Laminate veneer of ceramic
Keywords
facings, veneers, laminates, existing, restorations, esthetics, dental
Medical subject headings
Tooth Fractures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Laminate veneer of compositeDevice

    Composite laminate veneers, 2-4-6 veneers per patient

  • Laminate veneer of ceramicDevice

    laminate of ceramic (Empress Esthetic, Ivoclar Vivadent), ceramic laminate veneer, 2-4-6 veneers per patient will be made.

Study groups in NCT03145597
Study groupRoleWhat they receive
Laminate veneer of compositeExperimentalLaminate veneer of composite (Estenia, Kuraray Dental), composite laminate veneer, 2-4-6 veneers per patient will be made.
Receives: Device: Laminate veneer of composite
Laminate veneer of ceramicExperimentallaminate of ceramic (Empress Esthetic, Ivoclar Vivadent), ceramic laminate veneer, 2-4-6 veneers per patient will be made.
Receives: Device: Laminate veneer of ceramic

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. survival rate of laminate veneers

    fracture of teeth

    Measured: up to 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 May 2017
  2. Study start1 Jun 2017
  3. Primary completionDec 2020 (estimated)
  4. Study completionDec 2020 (estimated)

Resources

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
split mouth comparison
Masking
Single blind
Who is masked
Participant
Enrolment
70 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03145597
Sponsor's protocol ID
Laminate veneers
Acronym
facings
Status last verified
Aug 2018
First submitted
12 Jun 2012
Last updated
22 Aug 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Blatz MB, Sadan A, Kern M. Resin-ceramic bonding: a review of the literature. J Prosthet Dent. 2003 Mar;89(3):268-74. doi: 10.1067/mpr.2003.50.

    PubMed 12644802
  • Blatz MB, Sadan A, Maltezos C, Blatz U, Mercante D, Burgess JO. In vitro durability of the resin bond to feldspathic ceramics. Am J Dent. 2004 Jun;17(3):169-72.

    PubMed 15301212
  • Brendeke J, Ozcan M. Effect of physicochemical aging conditions on the composite-composite repair bond strength. J Adhes Dent. 2007 Aug;9(4):399-406.

    PubMed 17847643
  • Brentel AS, Ozcan M, Valandro LF, Alarca LG, Amaral R, Bottino MA. Microtensile bond strength of a resin cement to feldpathic ceramic after different etching and silanization regimens in dry and aged conditions. Dent Mater. 2007 Nov;23(11):1323-31. doi: 10.1016/j.dental.2006.11.011. Epub 2006 Dec 26.

    PubMed 17188745
  • Busscher HJ, Rinastiti M, Siswomihardjo W, van der Mei HC. Biofilm formation on dental restorative and implant materials. J Dent Res. 2010 Jul;89(7):657-65. doi: 10.1177/0022034510368644. Epub 2010 May 6.

    PubMed 20448246
  • Ccahuana VZ, Ozcan M, Mesquita AM, Nishioka RS, Kimpara ET, Bottino MA. Surface degradation of glass ceramics after exposure to acidulated phosphate fluoride. J Appl Oral Sci. 2010 Mar-Apr;18(2):155-65. doi: 10.1590/s1678-77572010000200010.

    PubMed 20485927
  • Carlen A, Nikdel K, Wennerberg A, Holmberg K, Olsson J. Surface characteristics and in vitro biofilm formation on glass ionomer and composite resin. Biomaterials. 2001 Mar;22(5):481-7. doi: 10.1016/s0142-9612(00)00204-0.

    PubMed 11214759
  • Drummond JL. Degradation, fatigue, and failure of resin dental composite materials. J Dent Res. 2008 Aug;87(8):710-9. doi: 10.1177/154405910808700802.

    PubMed 18650540
  • Dumfahrt H, Schaffer H. Porcelain laminate veneers. A retrospective evaluation after 1 to 10 years of service: Part II--Clinical results. Int J Prosthodont. 2000 Jan-Feb;13(1):9-18.

    PubMed 11203615
  • Dunne SM, Millar BJ. A longitudinal study of the clinical performance of porcelain veneers. Br Dent J. 1993 Nov 6;175(9):317-21. doi: 10.1038/sj.bdj.4808314.

    PubMed 8251248
  • Ernest CP, Holzmeier M, Willershausen B. In vitro shear bond strength of self-etching adhesives in comparison to 4th and 5th generation adhesives. J Adhes Dent. 2004 Winter;6(4):293-9.

    PubMed 15779314
  • Ferracane JL, Berge HX, Condon JR. In vitro aging of dental composites in water--effect of degree of conversion, filler volume, and filler/matrix coupling. J Biomed Mater Res. 1998 Dec 5;42(3):465-72. doi: 10.1002/(sici)1097-4636(19981205)42:33.0.co;2-f.

    PubMed 9788511
  • Ferracane JL, Hopkin JK, Condon JR. Properties of heat-treated composites after aging in water. Dent Mater. 1995 Nov;11(6):354-8. doi: 10.1016/0109-5641(95)80034-4.

    PubMed 8595835
  • Fradeani M. Six-year follow-up with Empress veneers. Int J Periodontics Restorative Dent. 1998 Jun;18(3):216-25.

    PubMed 9728104
  • Fradeani M, Redemagni M, Corrado M. Porcelain laminate veneers: 6- to 12-year clinical evaluation--a retrospective study. Int J Periodontics Restorative Dent. 2005 Feb;25(1):9-17.

    PubMed 15736774

Questions about this trial

What is this clinical trial studying?

A study testing Laminate veneer of composite and Laminate veneer of ceramic in people with Tooth Fracture, run by University Medical Center Groningen at 1 site in Netherlands.

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 8 inclusion and 6 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: status not confirmed, as of the sponsor's last update on 22 Aug 2018. 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 Netherlands. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact marco Gresnigt, Phd (0031-50-3632608, marcogresnigt@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

survival rate of laminate veneers (time frame: up to 24 months). 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 NCT03145597, which also lists 43 linked publications.

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 22 Aug 2018.

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