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The Use of Novel us Device (Jetguide) to Measure the Distance to the Roof of the IAC (Inferior Alveolar Canal)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified January 2012 by Rambam Health Care Campus.
Recruitment status was:  Not yet recruiting
Information provided by (Responsible Party):
Rambam Health Care Campus Identifier:
First received: January 4, 2012
Last updated: January 5, 2012
Last verified: January 2012
The purpose of this human clinical trial is to validate the accuracy of Jetguide® US device in detecting the inferior alveolar canal (IAC) and to compare it to measurements performed on computerized tomography images.

Condition Intervention
Comparison Between Ultrasound and Clinical Measurements Device: US depth measurements

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: The Use of Novel us Device (Jetguide) to Measure the Distance to the Roof of the IAC (Inferior Alveolar Canal)

Further study details as provided by Rambam Health Care Campus:

Estimated Enrollment: 25
Study Start Date: January 2012
Estimated Study Completion Date: February 2013
Estimated Primary Completion Date: January 2013 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Implant osteotomy measurements
Drilled implant locations
Device: US depth measurements
Measurement of the distance between the apex of the drilled implant site and the IAC
Other Names:
  • Jetguide
  • Ultrasonic measurement device

Detailed Description:

To date, the most accurate method to assess the distance from the alveolar crest to the IAC is cone beam computerized tomography (CBCT). This technique carries with it some potential concerns, including measurements errors, inability to perform intra-operative radiographs substantial financial and radiation costs.

In the present study patients will have a CBCT of the mandible taken. Sites where implants will be inserted will be marked on the CBCT, measurements of the distance from bone crest to the roof of the inferior alveolar canal (BC-IAC) will be performed.

During implant surgery the depth of the osteotomy (OD) will be measured using a periodontal probe; OD and the distance from the bottom of the osteotomy to the roof of the IAC (residual distance - RD) will be measured using a standard JetGuide® device. In addition, standard panoramic radiographs will be taken with a surgical gauge in the osteotomy which will enable us to measure the RD radiographically.

The correlation between the radiographic and clinical BC-IAC distance will be the primary outcome variable. The same correlation for the RD between the Jetguide readings and the linear measurements on the panoramic radiographs will serve as the secondary outcome variable.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Subjects attentding the clinic, requiring dental implant therapy in the posterior part of the lower jaw.

Inclusion Criteria:

  • missing teeth in the premolar and molar areas of the lower jaw

Exclusion Criteria:

  • pregnancy
  • pacemakers
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01505335

Rambam Health Care Campus, Dept. of Periodontology
Haifa, Israel, 31096
Sponsors and Collaborators
Rambam Health Care Campus
Principal Investigator: Prof. Eli Machtei Rambam Health Care Campus, Haifa, Israel
  More Information

Responsible Party: Rambam Health Care Campus Identifier: NCT01505335     History of Changes
Other Study ID Numbers: 0460-11-RMB CTIL
Study First Received: January 4, 2012
Last Updated: January 5, 2012

Keywords provided by Rambam Health Care Campus:
alveolar nerve, inferior
digital radiography, dental
nerve injury processed this record on September 21, 2017