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Trial of a New NuSmile ZR Esthetic Primary Molar Crown

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2014 by NuSmile, Ltd..
Recruitment status was:  Active, not recruiting
Sponsor:
ClinicalTrials.gov Identifier:
NCT01919515
First Posted: August 9, 2013
Last Update Posted: October 8, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
NuSmile, Ltd.
  Purpose
The hypothesis to be tested is that NuSmile ZR esthetic primary molar crowns perform similarly to an established Stainless Steel primary molar crown (3M ESPE) for restoration of primary molar teeth.

Condition Intervention
Dental Caries Device: ZR Crown Device: Stainless Steel Crown

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Randomized Controlled Clinical Trial of a New NuSmile ZR Esthetic Primary Molar Crown

Resource links provided by NLM:


Further study details as provided by NuSmile, Ltd.:

Primary Outcome Measures:
  • Assessments of the SSC and ZR Crown [ Time Frame: At Baseline ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match, marginal integrity.

  • Assessments of the SSC and ZR Crown at 6 months [ Time Frame: 6 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.

  • Assessments of the SSC and ZR Crown at 12 months [ Time Frame: 12 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.

  • Assessments of the SSC and ZR Crown at 18 months [ Time Frame: 18 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.

  • Assessments of the SSC and ZR Crown at 24 months [ Time Frame: 24 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.

  • Assessments of SSC and ZR Crown at 36 months [ Time Frame: 36 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.

  • Assessments of SSC and ZR Crowns at 48 months [ Time Frame: 48 month visit ]
    Clinically evaluate both the stainless steel crown and ZR crown for wear, gingival health, crown performance, color match and marginal integrity.


Estimated Enrollment: 50
Study Start Date: April 2013
Estimated Primary Completion Date: June 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
ZR Crown & Stainless Steel Crown
Each subject will have a maximum of one ZR Crown and one Stainless Steel Crown cemented on primary molars that are treatment planned for a crown.
Device: ZR Crown
This is an esthetic primary molar crown.
Device: Stainless Steel Crown
This is a conventional stainless steel crown.

Detailed Description:
The aim of this study is to clinically evaluate the performance of a new NuSmile ZR esthetic primary molar crown, compared with 3M ESPE Primary Stainless Steel crowns (currently the most common full coverage crown for the restoration of primary molars when a crown is necessary)in the restoration of 50 paired, prepared primary first and second molar teeth in the deciduous dentition of child patients.
  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   3 Years to 7 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Be between 3 and 7 years of age
  • Have a minimum of two primary molar teeth, requiring crowns
  • Have a parent or guardian capable of giving written informed consent
  • Have study teeth in occlusion and in contact with adjacent teeth
  • Teeth to be included in the study must have adequate remaining tooth tissue for retention of the NuSmile ZR crown to allow randomization of treatments to teeth.

Exclusion Criteria:

  • Tooth is considered to be within 36 months of exfoliation
  • They have a severe / serious childhood illness that requires frequent hospitalization
  • They have poor general health
  • They have juvenile periodontitis
  • Patient is unable to return for evaluations / study recalls
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01919515


Locations
United States, Texas
The University of Texas Health Science Center-Dental School
San Antonio, Texas, United States, 78229
The University of Texas Health Science Center-Ricardo Salinas Dental Clinic
San Antonio, Texas, United States, 78237
Sponsors and Collaborators
NuSmile, Ltd.
Investigators
Principal Investigator: Kevin J. Donly, D.D.S., M.S. University of Texas
  More Information

Publications:
Responsible Party: NuSmile, Ltd.
ClinicalTrials.gov Identifier: NCT01919515     History of Changes
Other Study ID Numbers: 20130203
First Submitted: July 31, 2013
First Posted: August 9, 2013
Last Update Posted: October 8, 2014
Last Verified: October 2014

Keywords provided by NuSmile, Ltd.:
pediatric
primary molars
stainless steel crowns

Additional relevant MeSH terms:
Dental Caries
Tooth Demineralization
Tooth Diseases
Stomatognathic Diseases