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The purpose of this research is to investigate the utility of using dental-dedicated MRI as a measurement tool to observe and evaluate the administration of local anesthesia in dental patients.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ddMRI scanning | Experimental | The ddMRI will take place after anesthesia administration. The ddMRI will allow researchers to see and measure the distribution of the local anesthetic, as well as the the area of the local anesthetic and the intensity on MRI. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ddMRI | Device | Dental MRI imaging |
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| Measure | Description | Time Frame |
|---|---|---|
| Patient reported sensation - 5min | Minimum value: No numbness Maximum value: Numb High scores mean a successful outcome for the block. | 5 minutes after the nerve block |
| Patient reported sensation - 1 hour | Minimum value: No numbness Maximum value: Numb High scores mean a successful outcome for the block. | within 1 hour of the nerve block |
| Ability to sense light touch | binary scale. Options are yes or no | within 1 hour of the nerve block |
| Ability to sense pressure | Minimum value: 1.65 Maximum value: 6.65 Low scores mean that the participant can sense more, and that the block was less effective | within 1 hour of the nerve block |
| Ability to sense direction of touch (only if can sense VonFrey fibers) | Patient reports direction of sensation (up/down/right/left). This is scored 5 times per site | within 1 hour of the nerve block |
| Ability to distinguish sharp versus dull (only if can sense VonFrey fibers) | Patient reports sharp versus dull sensation. This is scored 5 times per site | within 1 hour of the nerve block |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Rachel Uppgaard, DDS, FACS | Contact | 612-209-9176 | uppg0003@umn.edu |
| Name | Affiliation | Role |
|---|---|---|
| Rachel Uppgaard, DDS, FACS | University of Minnesota | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Minnesota | Minneapolis | Minnesota | 55455 | United States |
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