Effect of Tool Design on Hand Pain in Dental Practitioners
This study has been completed.
Sponsor:
University of California, San Francisco
Information provided by (Responsible Party):
University of California, San Francisco
ClinicalTrials.gov Identifier:
NCT01332760
First received: April 6, 2011
Last updated: February 21, 2012
Last verified: February 2012
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Purpose
Dentists and dental hygienists experience elevated rates of musculoskeletal disorders, such as carpal tunnel syndrome and tendonitis, primarily due to the high pinch force required for dental scaling. There is evidence that a lighter and larger diameter tool can significantly reduce the pinch force. This randomized controlled study will determine if dentists or dental hygienists who use such a tool report less hand and arm pain compared to those who continue to use the conventional tool design.
| Condition | Intervention |
|---|---|
|
Shoulder Pain |
Other: narrow diameter heavy dental tool Other: large diameter light weight tool |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Single Group Assignment Masking: Double Blind (Subject, Investigator, Outcomes Assessor) Primary Purpose: Prevention |
| Official Title: | Effect of Tool Design on Hand Pain in Dental Practitioners |
Further study details as provided by University of California, San Francisco:
Primary Outcome Measures:
- change from baseline in right shoulder pain score at 4 months [ Time Frame: 4 months after intervention ] [ Designated as safety issue: No ]peak pain assessed on 0-10 scale using end of week questionnaire
- Change from baseline in right elbow pain at 4 months [ Time Frame: 4 months after intervention ] [ Designated as safety issue: No ]peak pain assessed on 0-10 scale using end of week questionnaire
- change from baseline in right wrist pain at 4 months [ Time Frame: 4 months after intervention ] [ Designated as safety issue: No ]peak pain assessed on 0-10 scale using end of week questionnaire
Secondary Outcome Measures:
- change in pain medication usage [ Time Frame: pre-intervention compared to post intervention ] [ Designated as safety issue: No ]mean number of days using medications for upper extremity pain before the intervention compared to after the intervention
- change in nights per week waken from sleep due to finger numbness [ Time Frame: pre-intervention compared to post intervention ] [ Designated as safety issue: No ]Mean number of nights waken from sleep with burning, numbness or tingling in the right thumb, index or middle fingers during the pre-intervention period compared to the post-intervention period.
| Enrollment: | 110 |
| Study Start Date: | April 2009 |
| Study Completion Date: | March 2011 |
| Primary Completion Date: | March 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Active Comparator: narrow diameter heavy dental tool
periodontal tools for dental scaling and cleaning provided that have a narrow diameter (8mm) made of heavy material (steel).
|
Other: narrow diameter heavy dental tool
8mm diameter, heavy periodontal tool made from steel
Other Name: traditional tool
|
|
Experimental: light large diameter dental tool
periodontal tools for scaling and tooth cleaning provided with large diameter (11mm) handle made of light weight material
|
Other: large diameter light weight tool
Periodontal tools (4-8) provided to dental practitioners to use for all dental scaling or cleaning. This tool handle diameter is 11 mm diameter and it is made from lightweight Delrin.
Other Name: intervention tool
|
Show Detailed Description Eligibility| Ages Eligible for Study: | 18 Years to 65 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
Criteria
Inclusion Criteria:
- dentists and dental hygienists from the San Francisco Bay Area
- dental practitioners who perform more than 10 hours of dental hygiene work per week
- dental practitioners who have been performing dental hygiene work for more than 1 year
Exclusion Criteria:
- not currently under a physician's care for treatment of an upper extremity disorder
Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01332760
Locations
| United States, California | |
| UCSF Ergonomics Program | |
| Richmond, California, United States, 94804 | |
Sponsors and Collaborators
University of California, San Francisco
Investigators
| Principal Investigator: | David Rempel, MD, MPH | University of California, San Francisco |
More Information
No publications provided
| Responsible Party: | University of California, San Francisco |
| ClinicalTrials.gov Identifier: | NCT01332760 History of Changes |
| Other Study ID Numbers: | H5534-32614, R01OH008892 |
| Study First Received: | April 6, 2011 |
| Last Updated: | February 21, 2012 |
| Health Authority: | United States: Institutional Review Board |
Keywords provided by University of California, San Francisco:
|
ergonomics workplace occupational |
tool dental dentist |
Additional relevant MeSH terms:
|
Shoulder Pain Arthralgia Joint Diseases |
Musculoskeletal Diseases Pain Signs and Symptoms |
ClinicalTrials.gov processed this record on June 18, 2013