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DecayNCT01278862

Clinical Evaluation of Lava Digital Veneer System (DVS) Crowns

A study testing DVS veneer and Conventional Veneer in people with Decay, run by Solventum US LLC at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Study aim is to compare Lava Computer Aided Design / Computer Aided Milling Computer Aided Machining (CAD/CAM)crowns that are veneered (covered) with porcelain that has been milled using CAD/CAM, with similar CAD/CAM Lava crowns that have been veneered with a hand fabricated porcelain covering. Read more about this study

Who is it for?
Ages 19 years and older
Conditions the study is for
Decay
What is being tested?
DVS veneer and Conventional Veneer
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
77 participants
Where
1 siteUnited States
Study dates
Nov 2010to Mar 2014
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 19 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Over 18 years of age.
  • Have at least one decayed back tooth in need of a crown
  • Study tooth to be an upper or lower premolar or molar tooth/ teeth
  • Study tooth to be vital and asymptomatic at start of study

Who cannot join

  • Teeth which are non vital, have had root canal treatment
  • Teeth which are pulp capped
  • Sensitive teeth
  • Significant untreated dental disease including periodontitis and rampant decay
  • Pregnant or lactating women
  • Patients with allergies to any of the materials to be used in the study
  • Unable to attend the recall appointments

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Michigan Dental School

    Ann Arbor, Michigan, 48109-1274

Other trials in United States

About this study

Study aim is to compare Lava Computer Aided Design / Computer Aided Milling Computer Aided Machining (CAD/CAM)crowns that are veneered (covered) with porcelain that has been milled using CAD/CAM, with similar CAD/CAM Lava crowns that have been veneered with a hand fabricated porcelain covering.

Read the detailed description

Veneers will be randomly allocated to study crowns. Study crowns will be evaluated over three years. The test porcelain veneer is CAD/CAM milled as a veneer shell that is then fused to the CAD/CAM milled Lava crown to make the final crown to be cemented in the patient's mouth. This may be a more predictable technique in the fabrication of Lava crowns than current conventional methods.

Conditions
Decay
Being tested
DVS veneer, Conventional Veneer
Keywords
Crowns, posterior teeth, CAD CAM crowns, digital veneer system, Lava, clinical
Medical subject headings
Dental Caries

What participants receive

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

  • DVS veneerDevice

    Also called Lava digital veneer system

    CAD/CAM milled porcelain veneer for Lava crown

  • Conventional VeneerDevice

    Also called Lava Crown

    CAD/CAM milled Lava crown with lab fabricated veneer

Study groups in NCT01278862
Study groupRoleWhat they receive
DVS veneerExperimentalveneer made by CAD/CAM method
Receives: Device: DVS veneer
Conventional veneerActive comparatorVeneer made by laboratory technician
Receives: Device: Conventional Veneer

What is being measured

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

  1. Clinical Performance of Crowns Via Modified United States Public Health Service (USPHS) Criteria

    Performance reported as the % of teeth with perfect (alpha/A) scores. USPHS criteria: Color Match ( A=Ideal, B=perceptible mismatch but acceptable, C=obvious mismatch and unacceptable); Margin Adaptation (A=no visible crevice, B=crevice along <50% margin>1mm depth, C=crevice along>50% margin >1mm depth); Margin discoloration (A=none, B=Surface stain non penetrating, C=Penetrating; Surface Finish (A=smooth, B=moderately uniformly rough, C=significant pitts/voids; Crown Fracture (A=none, B=small but repairable, C= coping exposed/complete delamination; Proximal Contact (A=firm resistance to floss/ideal contact, B=light resistance/variable breadth, C=open; Sensitivity (A=none, B= slight but not uncomfortable, C=severe; Caries (A=no evidence, B= evident but repairable, C=evident/not repairable.

    Measured: 1 year

  2. Gingival/Periodontal Health Based on Loe & Stillness Index, 1963.

    Performance reported as the # of crowns exhibiting 0, 1, 2 and 3 index score. Gingival Index (0=normal, 1=mild inflammation, 2=moderate inflammation, 3=severe inflammation. Plaque Index (0= none, 1= observed only via probe at on tooth surface at gingival crest, 2=moderate accumulation along gingival margin and adjacent tooth, 3= abundant plaque along gingival margin and adjacent tooth.

    Measured: 1 year

Timeline

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

  1. First posted19 Jan 2011 (estimated)
  2. Study startNov 2010
  3. Primary completionMar 2014
  4. Study completionMar 2014

Why it stopped: product no longer on market

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
Masking
None (open label)
Enrolment
77 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01278862
Sponsor's protocol ID
3M ESPE CR-10-004
Status last verified
Nov 2024
First submitted
14 Jan 2011
Last updated
2 Dec 2024
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing DVS veneer and Conventional Veneer in people with Decay, run by Solventum US LLC at 1 site in United States.

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 4 inclusion and 7 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: stopped early, as of the sponsor's last update on 2 Dec 2024. 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 United States. 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?

Yes. Results are posted in the registry (first posted 26 Dec 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Clinical Performance of Crowns Via Modified United States Public Health Service (USPHS) Criteria (time frame: 1 year). The study lists 2 primary outcomes in all. 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 2 Dec 2024; AzTrials last refreshed its copy on 7 Nov 2026.

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