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Comparative Evaluation of an Electrical Impedance Device Versus Digital Radiography in Estimation of Remaining Dentin Thickness

Comparative Evaluation of an Electrical Impedance Device Versus Digital Radiography in Estimation of Remaining Dentin Thickness in Carious Posterior Permanent Teeth (Diagnostic Accuracy Trial)

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06162182
Enrollment
67
Registered
2023-12-08
Start date
2023-02-01
Completion date
2023-12-20
Last updated
2023-12-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Caries,Dental, Deep Caries

Keywords

electrical impedance device (prepometer), digital radiography, remaining dentin thickness

Brief summary

The research question was that in patients with carious posterior permanent teeth, would the electrical impedance device be as valid as digital radiography in estimation of remaining dentin thickness? The proposed hypothesis was null.

Interventions

DIAGNOSTIC_TESTelectrical impedance device,

The electrical resistance of the residual dentine underneath each measurement point was determined between an electrode and the crown pulp (Prepometer, Hager & Werken, Duisburg, Germany). Assigning the electrical resistance of the dentin. high values are considered to represent more residual dentine than low values.

DIAGNOSTIC_TESTReference test: Digital Radiographic examination

A digital periapical radiograph using paralleling technique was taken

Sponsors

Rawda Hesham Abd ElAziz
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Outcomes Assessor)

Masking description

The assessors will not be blind about the type of intervention/control assessment methods due to different application methods. However it will not be allowed amongst the examiners to exchange any information throughout the entire study period

Eligibility

Sex/Gender
ALL
Age
12 Years to 25 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants eligible for this study were those aged from 18 y to 28 y, * willing to join the study * with clinically detectable occlusal or proximal carious vital permanent molar teeth with closed apex and healthy periodontal supporting. * The minimum extension of the carious cavity should be at least 1 mm in width to accommodate with the probe of the prepometer

Exclusion criteria

* Excluded participants were those with poor oral hygiene, * severe medical complications, * showing signs and symptoms of irreversible or necrotic pulp pathology also when the affected tooth was with extended buccal or lingual caries, extending clinically beyond ¼ dentin thickness or previously restored.

Design outcomes

Primary

MeasureTime frameDescription
validity of the two devicesThrough study completion, an average of 1 yearLevel of agreement between the digital radiograph and the device in measurement of remaining dentin thickness

Secondary

MeasureTime frameDescription
Patients satisfaction between two devicesThrough study completion, an average of 1 yearBy visual analogue scale Visual Analog Scale (VAS) which is a 100 mm straight horizontal line with the left end indicating •not at all satisfied- and the right end very satisfied.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026