NCT01988337

Brief Summary

This is a three year single site clinical evaluation of a FDA approved (510(k):K100062) lesion penetrating resin used to infiltrate and hamper progression of proximal carious lesions. The purpose of this study is to compare lesion progression infiltrated with (Icon, Hamburg, Germany) to a similar sized lesion in the same patient treated with a placebo. The study is designed as a randomized, controlled, prospective clinical trial with a three year follow-up evaluation period. The clinical site will enroll 150 subjects (in the age range of 19 years or older) with 2 study lesions. The patients will be evaluated at six time points over a period of 3 years. Lesion status and caries risk will be monitored at 6-month intervals, while radiographic evaluation will be conducted at 12-month intervals at 1-, 2- and 3-year recall visits.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2015

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 7, 2013

Completed
13 days until next milestone

First Posted

Study publicly available on registry

November 20, 2013

Completed
1.7 years until next milestone

Study Start

First participant enrolled

August 1, 2015

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2018

Completed
4.3 years until next milestone

Results Posted

Study results publicly available

October 4, 2022

Completed
Last Updated

October 4, 2022

Status Verified

September 1, 2022

Enrollment Period

2.9 years

First QC Date

November 7, 2013

Results QC Date

April 26, 2022

Last Update Submit

September 6, 2022

Conditions

Keywords

Icon

Outcome Measures

Primary Outcomes (1)

  • Number of Invasive Interventions (Fillings)

    Cumulative number of study lesions that have progressed to a state were an invasive intervention (filling) has been required to restore the teeth as determined via an dental examination (baseline versus 3 year follow up).

    3 years

Secondary Outcomes (1)

  • Number of Lesions That Changed in Size (E1->E2->D1->D2-> Filling)

    6 months and 12 months

Other Outcomes (1)

  • Number of Lesions With Sensitivity to Percussion, Papillary Bleeding, Cold Response

    6 months and 12 months

Study Arms (2)

Resin infiltration

EXPERIMENTAL

One proximal caries lesion (split mouth design) per patient will be treated using the resin infiltrant "Icon" (DMG, Hamburg, Germany) according to manufactures´ instructions.

Device: Resin infiltration

Mock treatment

SHAM COMPARATOR

A second proximal caries lesion of each patient (split mouth design) will receive a placebo treatment to mimic "resin infiltration".

Other: Mock treatment

Interventions

The study is a split-mouth design. One tooth with a proximal caries lesion will randomly receive the infiltrating resin (Icon) while the other will receive a placebo, according to the manufactures´ instruction for Icon. In short, teeth will be isolated with a rubber dam and the tooth surface cleaned with non-fluoride prophylactic paste and pumice. The Icon material will be applied following the manufacturer's instructions and light cured, followed by polished using interproximal finishing/polishing strips (Sof Lex, 3M ESPE, St Paul, MN). Subjects will be given a letter to take to their local dentist asking them not to treat the selected lesions without informing the investigator first.

Also known as: Icon (DMG, Germany), approximal resin infiltration kit
Resin infiltration

For the mock treatment the procedure will be identical to the "Resin Infiltration" intervention, with the exception that a placebo will be used. Essentially, syringes identical to the Icon materials will be supplied by DMG for the placebo procedure. The syringes will be filled with solutions having the same consistency and color as the Icon material.

Mock treatment

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be age 19 years and older
  • Have at least two vital carious teeth with caries ranging from enamel to just into dentin.
  • If the lesion is not on a 3rd molar
  • If the lesion is not developmental.
  • If the lesion is not cavitated
  • Be a regular dental attendee able to return for assessments
  • Be in good medical health and able to tolerate the dental procedure
  • Have no chronic periodontitis which could compromise tooth retention.
  • Have normal salivary function.
  • Have normal bone levels
  • No lingering cold sensitivity
  • No periapical sensitivity
  • No sensitivity to percussion

You may not qualify if:

  • Are not able to tolerate the time required for the study
  • There is a history of an adverse reaction to any materials used in the study
  • They are irregular dental attendees
  • They maintain an unacceptable standard of oral hygiene.
  • They have chronic periodontitis
  • There is severe salivary gland dysfunction or reduced salivary flow is observed
  • They are unable to return for recall appointments

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama

Birmingham, Alabama, 35294, United States

Location

MeSH Terms

Conditions

Dentin Sensitivity

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic Diseases

Results Point of Contact

Title
Manager Clinical Research
Organization
DMG Dental Material Gesellschaft mbH

Study Officials

  • Nate O. Lawson

    Birmingham, Alabama 35294; US

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Split-mouth design
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 7, 2013

First Posted

November 20, 2013

Study Start

August 1, 2015

Primary Completion

July 1, 2018

Study Completion

July 1, 2018

Last Updated

October 4, 2022

Results First Posted

October 4, 2022

Record last verified: 2022-09

Locations