NCT04637854

Brief Summary

Background: Attention and awareness towards MSDs in the dental profession has increased considerably in recent years. From recent literature reviews, it is learned that prevalence of MSDs in dentists is 64-93%. It has been seen that the use of magnification systems not only improves the operator's visual capabilities, but also allows for a more correct posture, and to prevent the onset of back and neck disorders. Purpose and methods: Evaluate dentist posture during extraction of third lower molars depending on whether the operator uses the naked eye, surgical loupes or surgical microscope systems. Data will be evaluated through the index RULA (rapid upper limb assesment) to define whether there is a change in exposure to the risk of MSDs (Muskoloskeletal disease) and using fiducial markers for the movement analysis of the operator during the procedure.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
65

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2017

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2018

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

November 10, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

November 20, 2020

Completed
Last Updated

November 20, 2020

Status Verified

November 1, 2020

Enrollment Period

1.2 years

First QC Date

November 10, 2020

Last Update Submit

November 19, 2020

Conditions

Outcome Measures

Primary Outcomes (2)

  • Posture and fatiguing positions

    Specific postural analysis using fiducial markers: a set of markers on the back of a tight T-shirt worn by the dentist during the whole operation will be acquired using a 5 MPixels camera at 2 fps. We will place the markers in order to focus our analysis on the following parameter: the neck position with respect to the trunk, the trunk orientation with respect to the vertical axis, the twist and bending of the neck and back, the overall static position duration of the neck and the back. The rotation angles of every marker will be extracted and stored for every frame of the recorder video.

    During the surgical procedure (one frame every second during the intervention)

  • Rapid Upper Limb Assessment (RULA)

    Evaluation tool for ergonomic investigations of workplaces. Values are expressed as RULA scores.

    After the operative performance, an average 15 minutes

Study Arms (3)

Operating Microscope.

EXPERIMENTAL

Surgical technique is the same used for extraction of the lower third molar. Patients will be enrolled (baseline) whenever sign their written informed consent to participate to the study, after having read and understand the informative pamphlet. The intervention will be performed under local anesthesia (mepivacaine 20 mg/ml with adrenaline 1:100000) and by the use of microscope. At the end of the surgical procedure, all patients will receive a 100mg Nimesulide cpr and apply the ice pack on the cheek. At the end of each procedure will give post-operative instructions for all patients and prescribe an antiseptic therapy with chlorhexidine coll. 0.2% 3 times/ day for 10 days from the day following the intervention and anti-inflammatory therapy Nimesulide 100 mg cpr to take up to 2 times / day for up to 4 days. Each patients will be recalled for follow-up visits at 7 days.

Procedure: Operating microscope

Surgical Loupes with coaxial illumination.

ACTIVE COMPARATOR

The same as above but the intervention will be performed with the use of surgical loupes

Procedure: Surgical loupes

Naked Eye.

ACTIVE COMPARATOR

The same as above but the intervention will be performed at naked eyes

Procedure: Naked eyes

Interventions

Third molar extraction using microscope

Operating Microscope.

Third molar extraction using loupes with co-axial illumination

Surgical Loupes with coaxial illumination.
Naked eyesPROCEDURE

Third molar extraction using naked eyes

Naked Eye.

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients elements 38 or 48 in dysodontiasis requiring a complex extraction
  • able to sign informed consent

You may not qualify if:

  • general contraindication to surgical treatment
  • pregnancy
  • lactation
  • age under 18 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Milan

Milan, 20142, Italy

Location

MeSH Terms

Conditions

Low Back Pain

Condition Hierarchy (Ancestors)

Back PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Giovanni Lodi, PhD, DMD

    University of Milan

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

November 10, 2020

First Posted

November 20, 2020

Study Start

March 1, 2017

Primary Completion

May 1, 2018

Study Completion

May 1, 2018

Last Updated

November 20, 2020

Record last verified: 2020-11

Locations