Condition category
Musculoskeletal Diseases
Date applied
26/07/2011
Date assigned
02/08/2011
Last edited
08/05/2017
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims:
Work related musculoskeletal disorders (WMSD) have become increasingly common among dentists during the past decades. Repetitive movements and prolonged awkward postures of neck and upper back have been identified as major risk factors for WMSD. Generally, dentists do not have any guidance to assist them with correct neck and upper back positions and movements. No previous study has shown what kind of solution the dentists could employ for monitoring their own neck and upper back movements to help them self correct the extreme posture and movements in order to minimize the risk of acquiring WMSD. There is a need for a reliable and valid observational instrument that can be used to document and assess risk factors for musculoskeletal disorders. This study aims to create an electronic instrumentation for predicting WMSD among dentists, and to evaluate the system performance in assisting dentists with correct neck and upper back positions and movements.

Who can participate?
Dentists aged between 25 to 30

What does the study involve?
Participants are randomly allocated to one of two groups that determined their schedule of working. The participants are tasked to perform scaling on a upper right maxillary 2nd and 1st molars for 15 minutes. Those in the first group received feedback data after the scaling before a second testing session. Those in the second group did not receive any feedback data before a second testing session.

What are the possible benefits and risks of participating?
There are no notable benefits or risks with participating.

Where is the study run from?
Thammasat University Faculty of Dentistry (Thailand)

When is study starting and how long is it expected to run for?
March 2011 to June 2011

Who is funding the study?
Thailand Research Fund (Thailand)

Who is the main contact?
Dr. Siriwan Suebnukarn

Trial website

Contact information

Type

Scientific

Primary contact

Dr Siriwan Suebnukarn

ORCID ID

Contact details

Faculty of Dentistry
Thammasat University
Pathumthani
12121
Thailand

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

An electronic instrumentation for predicting musculoskeletal disorders among dentists: a randomised controlled trial

Acronym

Study hypothesis

Trial to to compare the effectiveness of using an electronic instrumentation for predicting musculoskeletal disorders over the routine dental work. The dentists that received feedback from an electronic instrumentation for predicting musculoskeletal disorders, will decrease the extensions of neck and upper back

Ethics approval

Srinakarintaraviroj University Thailand,15 March 2011, ref: 8/2554

Study design

A randomized 2x2 cross over trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Hospitals

Trial type

Treatment

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Musculoskeletal disorders in dentists

Intervention

1. The participants’ task was to perform scaling on upper right maxillary 2nd and 1st molars for 15 minutes
2. Participants in the experiment group received feedback on those data after finishing scaling on the 2nd molar (Feedback), while those who were in the control group received no-feedback data (No-feedback)
3. Participants were randomly assigned into a two-by-two crossover trial using a computer-generated randomization schedule to each of two sequences of working
4. Group A was assigned to an initial testing session receiving the system feedback followed by receiving no feedback in a second testing session
5. Group B was assigned to an initial testing session receiving no feedback followed by receiving the system feedback in a second testing session

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

1. The angle at 10th percentile of Headx, Heady, Backx and Backy
2. Recorded two times: after finishing scaling on the 2nd molar (Pre-test) and finishing scaling on the 1st molar (Post-test)

Secondary outcome measures

The log likelihood for classifying the movements as Work-Related Musculoskeletal Disorder (WMSD) likelihood

Overall trial start date

01/03/2011

Overall trial end date

30/05/2011

Reason abandoned

Eligibility

Participant inclusion criteria

1. All participants were general dentists from the same hospital
2. Male or female
3. Aged between 25 - 30

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

16

Participant exclusion criteria

Participants performed less than 6 hours of dental work a day

Recruitment start date

01/03/2011

Recruitment end date

30/05/2011

Locations

Countries of recruitment

Thailand

Trial participating centre

Faculty of Dentistry
Pathumthani
12121
Thailand

Sponsor information

Organisation

Thailand Research Fund (Thailand)

Sponsor details

797/17 Pahonyothin
Bangkok
10400
Thailand

Sponsor type

Research organisation

Website

http://www.trf.or.th/

Funders

Funder type

Research council

Funder name

Thailand Office of Higher Education Commission

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Funder name

National Research Council of Thailand

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Funder name

The Thailand Research Fund

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes

08/05/2017: Plain English Summary added.