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CompletedNCT02822040Updated Sep 20, 2016

An Evaluation of Root Length Measurements Using Intraoral Scan and Panoramic Radiographs

An observational study in Root Resorption, sponsored by Loma Linda University. Completed. Open to participants aged 13 Years to 55 Years. Per ClinicalTrials.gov, last updated 2016-09-20.

Sponsored by Loma Linda University · Observational

Study type
Observational
Time perspective
Prospective
Enrollment
21
Ages
13 Years to 55 Years
Sex
All
01

Study summary

This study will attempt to validate a method of estimating root length on panoramic radiograph by crown measurement on intraoral digital scans.

Read the detailed description

Intraoral digital scans will be taken on patients who have completed orthodontic treatment, and measurements will be made on the crown dimensions. These dimensions will then be applied onto the same teeth as seen on panoramic radiographs and a mathematical relationship will be determined for root length. Changes in root length will be measured from initial records to treatment complete panoramic radiographs and these estimates will be compared to actual root length changes as measured in CBCT (Cone Beam Computed Tomography) records.

02

Conditions studied

  • Root Resorption

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Keywords

  • Root Resorption
  • Panoramic Radiograph
03

In context

Root Resorption

43 studies on the registry are indexed under Root Resorption; 9 are open to participants now.

Browse Root Resorption studies →

Lead sponsor

Loma Linda University is the lead sponsor of 306 studies on the registry; 46 are open to participants now.

Of its 29 completed or terminated interventional studies of FDA-regulated products, 23 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
13 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients who have undergone orthodontic treatment, and associated tooth movement, and have initial records directly before the initiation of treatment.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subject has initial records including CBCT scan and panoramic radiograph that are clear. Subject must have no restorations or significant loss in tooth structure in target teeth or teeth adjacent to target.

Exclusion criteria

Exclusion Criteria:

  • Subjects who have records that are not clear, and who are missing target teeth.
05

Study design

Time perspective
Prospective
Enrollment
21 participants (actual)
Patient registry
No

Groups and cohorts

  • Experimental group

    All patients who have initial and final records qualify in the experimental group.

    Other: Intraoral Scan

Interventions

  • OtherIntraoral Scan

    All patients will have an intraoral scan performed for measurements to be taken on.

06

What researchers measure

Primary outcomes

  1. Change in root length in mm

    Changes in root length will be calculated, starting from the initiation of orthodontic treatment to completion of treatment, at an average of 24 months.

    Time frame: Root length will be measured at the initiation of orthodontic treatment and at an average of 24 months later.

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jul 2016, a primary completion of Sep 2016 and a completion of Sep 2016. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 18, 2016
First posted
Jul 4, 2016
Start
Jul 2016
Primary completionActual
Sep 2016
CompletionActual
Sep 2016
Last update
Sep 20, 2016
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 20, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02822040
Responsible party
Rodrigo Viecilli, DDS, PhD (Orthodontic Faculty, Loma Linda University) — Principal investigator
First posted
Jul 4, 2016
Start date
Jul 2016
Primary completion
Sep 2016
Completion
Sep 2016
Last update
Sep 20, 2016

Study contacts

Rodrigo Viecilli, DDS, PhD
principal investigator · Loma Linda University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2016. You cannot join it, but the record below documents what was studied.

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Discussion

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