Use of Radiographic Contrast to Detect Dental Caries

NCT ID: NCT01523509

Last Updated: 2016-06-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-08-31

Study Completion Date

2013-05-31

Brief Summary

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The proposed test is intended to enable dentists to differentiate between cavitated and non-cavitated tooth decay in the areas where teeth are in contact (interproximal surfaces). In these areas, dentists cannot visually inspect for caries, and currently bitewing X-rays (BWs) only correctly detect the presence of enamel decay 15-25% of the time. This low sensitivity can lead to late treatment resulting in unnecessarily large fillings, crowns, pain, root canals, and possible later loss of teeth.

Hypothesis: Use of radiographic contrast on teeth will increase the accuracy of detection of early cavitation from 58% to 90%.

Detailed Description

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Tooth sites will be recorded by tooth number, type of surface (mesial, distal,occlusal), cavitated, non-cavitated, healthy. Radiographs will similarly be scored.Although contrast agents are classified as drugs this is not a study of drug properties or effect on cells since the properties of the agent are already well know and its safety record well established. This study will be recording the radiopacity of the contrast agent on healthy tooth surfaces, non-cavitated tooth surfaces and cavitated tooth surfaces. The outcome for each surface type will be presence or absence of a radiopacity on a radiograph which will be made at the one and only visit for each study subject. The radiograph contains the data from the intervention (placement of contrast agent) and the outcome will be assessed some weeks later after the completion of the data collection.

Conditions

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Dental Caries

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Contrast

All subjects will be in one group who will have a control radiograph of teeth before applying the Sodium Iodide contrast agent topically between the teeth (the intervention) when another radiograph will be taken to test for the presence of contrast in a cavity.

Group Type EXPERIMENTAL

Radiographic contrast agent. Sodium Iodide.

Intervention Type DEVICE

Application of Sodium Iodide contrast topically to tooth immediately followed by radiograph.

Interventions

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Radiographic contrast agent. Sodium Iodide.

Application of Sodium Iodide contrast topically to tooth immediately followed by radiograph.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* must have a minimum of 2 adjacent teeth so that interproximal surfaces of interest are in contact and hidden from direct visual inspection.
* the occlusal plane should be normal so that the interproximal contact regions are normal.
* English or Spanish speaker.

Exclusion Criteria

* pregnant women
* a person who has participated in a similar study involving dental radiography within the last 12 months.
* fillings must not be present in the regions of interest.
Minimum Eligible Age

19 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Creighton University

OTHER

Sponsor Role lead

Responsible Party

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Douglas K Benn DDS, PhD

Professor and PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Douglas K Benn, DDS PhD

Role: PRINCIPAL_INVESTIGATOR

Creighton University

Locations

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Creighton University School of Dentistry

Omaha, Nebraska, United States

Site Status

Countries

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United States

References

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Benn DK, Cooper RL, Nunn ME, Edwards SE, Rocha-Sanchez SM. A radiographic method for distinguishing noncavitated from cavitated proximal carious lesions: A proof of concept clinical trial. Oral Surg Oral Med Oral Pathol Oral Radiol. 2021 Dec;132(6):715-726. doi: 10.1016/j.oooo.2021.02.014. Epub 2021 Feb 23.

Reference Type DERIVED
PMID: 34083157 (View on PubMed)

Other Identifiers

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CU IRB-01

Identifier Type: -

Identifier Source: org_study_id

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