Study Stopped
Slower than expected tooth decay in placebo group and insufficient recruitment.
Lesion Progression After Icon Treatment in Young Adults
Double Blind Randomized Controlled Clinical Trial of Lesion Progression After Treatment With Icon vs. Placebo in Caries Lesions in Young Adults Over 36 Months
1 other identifier
interventional
56
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Aug 2015
Typical duration for not_applicable
1 active site
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
CompletedFirst Posted
Study publicly available on registry
November 20, 2013
CompletedStudy Start
First participant enrolled
August 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2018
CompletedResults Posted
Study results publicly available
October 4, 2022
CompletedOctober 4, 2022
September 1, 2022
2.9 years
November 7, 2013
April 26, 2022
September 6, 2022
Conditions
Keywords
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
EXPERIMENTALOne proximal caries lesion (split mouth design) per patient will be treated using the resin infiltrant "Icon" (DMG, Hamburg, Germany) according to manufactures´ instructions.
Mock treatment
SHAM COMPARATORA second proximal caries lesion of each patient (split mouth design) will receive a placebo treatment to mimic "resin infiltration".
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.
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.
Eligibility Criteria
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
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Manager Clinical Research
- Organization
- DMG Dental Material Gesellschaft mbH
Study Officials
- PRINCIPAL INVESTIGATOR
Nate O. Lawson
Birmingham, Alabama 35294; US
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
- 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