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Mouth, EdentulousNCT04023006

An Observational Clinical Case Series Study to Assess Fit and Quality of Full Dentures Fabricated by AM

An observational study of Mouth, Edentulous, run by Dentsply International 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

This observational clinical case series investigation will be conducted on approximately five (5) enrolled subjects at one (1) site in the US. Treatment of subjects encompasses all steps to fabricate new dentures for maxilla and/or mandible. The subjects will be followed 7-10 days after final delivery of the denture Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Mouth, Edentulous
What is being tested?
Removable prostheses
Type of treatment
Medical device
How many people
10 participants
Where
1 siteUnited States
Study dates
1 Aug 2019to 1 Apr 2020
Phase
Observational
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

Study population: The investigational device is part of a treatment concept for edentulous patients of all ages, gender and races. The incidence for tooth loss has not declined over years, and the prevalence for edentulism is significantly higher for adults 50 years and older. For this descriptive two-part survey, no minimum number of patients is defined, but to achieve a reasonable subject number, a minimum of five (5) patients will be enrolled, i.e. 10 dentures will be fabricated within this study.

Who may be able to join

  • Subject is 18 years or older.
  • Subject has given written consent to participate in the trial.
  • Subject is in good general health.
  • Subject requires a new removable full denture for both jaws.
  • Subject is completely edentulous in the maxilla and mandible.
  • Subject is already wearing a full denture in the maxilla and mandible.
  • Subject is willing to undergo dental treatment to receive a new full denture for both jaws.
  • Subject confirms availability for treatment and all indicated follow-up visits.

Who cannot join

  • Subject is younger than 18 years.
  • Subject is pregnant.
  • Subject has disabilities that do not allow a regular dental treatment.
  • Subject with some systemic medical complications that cause difficulty in impression taking or judging occlusion of device.
  • Subject is currently participating in another study.
  • Subject has an allergic history regarding materials used in this trial.
Show all 20Show fewer
  • Subject with xerostomia/ dry-mouth syndrome.
  • Lack of compliance is expected.
  • Those subjects who cannot provide informed consent for any reason
  • Acute stomatitis.
  • Status after tumor treatment in head-neck region (removal, radiotherapy).
  • Acute cancer.
  • Incomplete hard and/or soft tissue in the oral cavity.
  • Muscle and/or nerve damage in the head-neck region.
  • Insufficient vertical height and/or insufficient mouth opening.
  • Resilient hyperplastic mucosa ("flappy ridges").
  • Bruxism.
  • Insufficient oral hygiene. The existing dentures should have no visible calculus.
  • Previously enrolled in the present investigation.
  • Involvement in the planning and conduct of the clinical investigation. (applies to all Dentsply Sirona \& Carbon 3D staff, investigational site staff staff and third party vendor).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boston University Goldman School of Dental MEdicine

    Boston, Massachusetts, 02118

Other trials in United States

About this study

Official title: An Observational Clinical Case Series Study to Assess Fit and Quality of Full Dentures

This observational clinical case series investigation will be conducted on approximately five (5) enrolled subjects at one (1) site in the US. Treatment of subjects encompasses all steps to fabricate new dentures for maxilla and/or mandible. The subjects will be followed 7-10 days after final delivery of the denture

Read the detailed description

This investigation is undertaken to evaluate the workflow and concomitant products to create full dentures by using additive manufacturing (AM) technology, i.e. Digital Light Processing™ Technology (Carbon 3D) to restore fully edentulous jaws. The assessment includes quality of materials provided by Dentsply Sirona Lab by using printers for AM (M series, Carbon 3D 1089 Mills Way, Redwood City, CA 94063). This assessment will be done by clinical review of the AM dentures on fit and quality. In addition, the evaluation includes a patient survey to assess current dentures and the new AM dentures with a subjective comparison of both.

The target subjects are male or female, 18 years and older with the need of a full denture in one or both jaws, being completely edentulous. The newly fabricated denture is to replace an existing full denture. For this descriptive study, no minimum number of patients is defined, but to achieve a reasonable subject number, a minimum of five (5) and a maximum of ten (10) patients will be enrolled, i.e. ten to twenty (10-20) denture arches will be fabricated within this study.

Being tested
Removable prostheses
Keywords
Denture
Medical subject headings
Mouth, Edentulous

What participants receive

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

  • Removable prosthesesDevice

    Also called Lucitone 3D print resin dentures

    Full dentures created by Additive manufacturing (Carbon Printers)

Study groups in NCT04023006
Study groupRoleWhat they receive
Edentulous PatientsThe investigational device is part of a treatment concept for edentulous patients of all ages, gender and races. The incidence for tooth loss has not declined over years, and the prevalence for edentulism is significantly higher for adults 50 years and older. For this descriptive two-part survey, no minimum number of patients is defined, but to achieve a reasonable subject number, a minimum of five (5) patients will be enrolled, i.e. 10 dentures will be fabricated within this study.
Receives: Device: Removable prostheses

What is being measured

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

  1. Assessment of the fit of the denture

    A questionnaire of assessment of fit by ranking, in comparison to the previous denture, using a Likert Scale from a minimum of 5 to a maximum of 1.

    Much worse (5) Worse (4) Same (3) Better (2) Much better (1)

    Measured: At Final Placement of Denture, through study completion, an average of one month

Secondary outcomes (3)
  1. Aesthetics of dentures

    A questionnaire of assessment of aesthetics by ranking, in comparison to the previous denture, using a Likert Scale from a minimum of 5 to a maximum of 1.

    Much worse (5) Worse (4) Same (3) Better (2) Much better (1)

    Measured: At Final Placement of Denture,through study completion, an average of one month

  2. Function of dentures

    A questionnaire of assessment of function by ranking, in comparison to the previous denture, using a Likert Scale from a minimum of 5 to a maximum of 1.

    Much worse (5) Worse (4) Same (3) Better (2) Much better (1)

    Measured: At Final Placement of Denture,through study completion, an average of 1 month

  3. Dentist's satisfaction with treatment: questionnaire

    A questionnaire of assessment of satisfactions of treatment by ranking, in comparison to the previous placed denture, using a Likert Scale from a minimum of 5 to a maximum of 1.

    Much worse (5) Worse (4) Same (3) Better (2) Much better (1)

    Measured: At Final Placement of Denture, through study completion, an average of 1 month

Timeline

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

  1. First posted17 Jul 2019
  2. Study start1 Aug 2019
  3. Primary completion1 Apr 2020
  4. Study completion1 Apr 2020

Why it stopped: No usable data were obtained. Therefore, the study was terminated.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04023006
Sponsor's protocol ID
PRPA 22901 / CR 02
Status last verified
Feb 2021
First submitted
12 Jul 2019
Last updated
10 Feb 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Celebic A, Knezovic-Zlataric D, Papic M, Carek V, Baucic I, Stipetic J. Factors related to patient satisfaction with complete denture therapy. J Gerontol A Biol Sci Med Sci. 2003 Oct;58(10):M948-53. doi: 10.1093/gerona/58.10.m948.

    PubMed 14570864
  • Schwindling FS, Bomicke W, Hassel AJ, Rammelsberg P, Stober T. Randomized clinical evaluation of a light-cured base material for complete dentures. Clin Oral Investig. 2014;18(5):1457-65. doi: 10.1007/s00784-013-1110-4. Epub 2013 Sep 21.

    PubMed 24057919

Questions about this trial

What is this clinical trial studying?

An observational study of Mouth, Edentulous, run by Dentsply International 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 8 inclusion and 20 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 10 Feb 2021. 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?

The study was stopped early (reason given: No usable data were obtained. Therefore, the study was terminated.). Results are not available in the source record.

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?

Assessment of the fit of the denture (time frame: At Final Placement of Denture, through study completion, an average of one month). 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 NCT04023006, which also lists 2 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 10 Feb 2021.

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