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The benefit of ear protection device in preventing noise induced hearing loss among dentist

The efficacy of using ear protection device (ear plugs) in reducing the immediate noise induced hearing loss among dentist after using ultrasonic scalers: a randomized cross-over study.

Status
Active, not recruiting
Phases
Phase 3Phase 4
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2017/07/009031
Enrollment
64
Registered
2017-07-12
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: use of ear protection device (ear plugs): ear protection device (ear plugs) while using ultrasonic scaling for one hour for periodontal debridement Control Intervention1: use of the ult

Sponsors

Manipal University
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: About 64 dental professionals of age 20-30 years who volunteered for the study will be selected according to the following inclusion criteriaâ??s: 1) Subjects with normal hearing capacity in both the ears (pure tone thresholds within normal limits in octave frequencies) 2) Subjects with no history of any ear infection, hearing defect or trauma 3) Subjects without any systemic illness or history of any drug intake 4) No history of any nerve injury or trauma involving the central or peripheral nervous system. This is done to avoid any bias that would arise due to previously present hearing dysfunctions.

Exclusion criteria

Exclusion criteria: Exclusion criteria: 1) Subjects who have any previous history of head and neck injury involving the ear. 2) Subjects with previous history of nerve injury or trauma involving the central or peripheral nervous system 3) Subjects with no history of any ear infection, hearing defect or trauma 4) Subjects with previous or presence of any ear infection, hearing defect or trauma

Design outcomes

Primary

MeasureTime frame
Pure Tone Audiometry (PTA) Tympanogram test/ Tympanometry or reflexometry test Oto acoustics emission (OAE) testTimepoint: baseline and after one hour

Secondary

MeasureTime frame
Any sign and symptom of headache, ear ache, ear pain, tinnitus, irritation, blurry vision will be recordedTimepoint: baseline and after one hour

Countries

India

Contacts

Public ContactDr Aditi Chopra

Manipal College of Dental Sciences, Manipal University, Manipal

draditichopra@gmail.com08202922173

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026