Bone Anchored Hearing Devices

Questions and Answers

Which of the following is NOT a benefit of Oticon Medical's Ponto over conventional hearing aids?

Better sound localization (correct)

Enhanced speech perception in both quiet and noisy environments

Improved sound quality

Reduced amplification required for conductive hearing loss

What is the maximum fitting range of the Oticon Medical Ponto 3 SuperPower?

Up to 100 dB HL

Up to 65 dB HL

Up to 85 dB HL

Up to 45 dB HL (correct)

Which of the following is NOT a common indication for the use of a Ponto device?

Failure with conventional hearing aids

Unilateral or bilateral sensorineural hearing loss (correct)

Unilateral or bilateral mixed hearing loss

Unilateral or bilateral conductive hearing loss

Which of the following features are available on ALL Oticon Medical Ponto models?

BrainHearing™ technology Signup and view all the answers

What is the primary mechanism by which a Ponto device transmits sound to the cochlea?

Bone conduction Signup and view all the answers

What is the average maximum output sound pressure (MPO) of the Oticon Medical Ponto 3 SuperPower?

106 dB Signup and view all the answers

What is the primary purpose of a Ponto device in the context of unilateral profound sensorineural hearing loss (SSD)?

To provide binaural hearing by transmitting sound to the functioning cochlea Signup and view all the answers

Which of the following is a common reason why someone might choose a Ponto device over a conventional hearing aid?

A history of ear infections and sensitivity to moisture Signup and view all the answers

What is the primary function of the titanium abutment in the Ponto device system?

To connect the sound processor to the implanted titanium fixture Signup and view all the answers

What is the name of the Oticon Medical mobile app that allows for remote control of the Ponto device?

Oticon ON App Signup and view all the answers

What is a significant benefit of using a single-sided device for deafness patients?

Improved speech intelligibility in noise Signup and view all the answers

What is the required difference between left and right BC Θ’s for candidates with bilateral fittings?

< 10 dB on average and < 15 dB at individual frequencies Signup and view all the answers

What is one of the cautions for fitting children with bone-anchored devices?

Placement is contraindicated in children under 5 years Signup and view all the answers

What is the average level of acceptable air conduction (AC) for treatment?

$14 dB HL$ or below Signup and view all the answers

What should be considered when selecting the side for fitting a single sound processor in patients with bilateral hearing loss?

Select side with best BC Θ’s Signup and view all the answers

What factor might influence the surgical technique chosen for fitting a hearing device?

Dura/sigmoid sinus exposure Signup and view all the answers

What is true regarding evaluation criteria for children receiving a hearing device?

Children should have sufficient bone volume and quality Signup and view all the answers

What advantage does a bone conduction device provide over an AC CROS hearing aid?

No cables are needed to transmit sound Signup and view all the answers

What is position compensation specifically defined as?

Software adjustment necessary because of location of the microphone Signup and view all the answers

When should position compensation be turned on for a device?

When the device is worn behind the ear Signup and view all the answers

Which of the following is NOT an option to verify the benefit of a hearing device?

Temporary noise suppression Signup and view all the answers

What can the Audioscan Verifit Skull Simulator directly compare?

DSL-BCD v1.1 force-level targets to actual device output Signup and view all the answers

What should be used during aided gain testing for more accuracy?

Pulsed, narrow band noise Signup and view all the answers

Which of the following factors is important when fitting devices to targets?

Compression across speech inputs Signup and view all the answers

What is an important consideration when testing aided gain in unilateral hearing loss?

Plugging the non-affected ear Signup and view all the answers

What mi representa una preocupación en la validez del testing de ganancia asistida?

Expansión dentro de los dispositivos Signup and view all the answers

What is not included in the speech testing methods mentioned?

Standard hearing tests Signup and view all the answers

Which assessment tool reports improvements in speech recognition when speech is in front and noise is behind?

BKB-SIN Signup and view all the answers

What was the decrease in minimum audible angle from the best monaural condition to the bilateral condition?

44° Signup and view all the answers

What is a functional measure used to assess quality of life for patients with single-sided deafness?

HHIA Signup and view all the answers

Which of the following options describes a report on improvements in localization with the use of an OID?

No improvement reported Signup and view all the answers

What type of hearing loss is addressed by the studies mentioned?

Unilateral sensorineural hearing loss Signup and view all the answers

Which system showed longitudinal benefits for patients with unilateral sensorineural hearing loss?

Bone Anchored Hearing Aid (Baha) Signup and view all the answers

What is the purpose of the SPIN assessment in this context?

To assess speech perception in noise Signup and view all the answers

What is the main function of a bone-anchored hearing system?

To bypass the middle ear and transmit sound vibrations directly to the inner ear Signup and view all the answers

Which of the following companies manufactures the Baha Bone Conduction System?

Cochlear Signup and view all the answers

What is the maximum hearing loss level that a Baha system can address?

Up to 55 dB SNHL Signup and view all the answers

Which of the following features is NOT available in all three bone-anchored hearing systems mentioned in the text?

Direct streaming to Apple™ devices Signup and view all the answers

What is the typical frequency range of a bone-anchored hearing system?

250–7000 Hz Signup and view all the answers

What is the approximate weight of the Baha 5 Smart system?

11.6 g Signup and view all the answers

Which of the following is NOT a factor affecting osseointegration?

Patient's age Signup and view all the answers

What is the main difference between the Baha 5 Smart App and the Baha Control App?

The Baha Control App is no longer available. Signup and view all the answers

Study Notes

Types of Devices

Ponto Bone-Anchored Hearing System (Oticon Medical)
Baha Bone Conduction System (Cochlear)
Sophono Bone-Anchored Hearing System (Bone Conduction Hearing)

History of Bone-Anchored Devices

Titanium osseointegrated implants were first used in dental implants in 1965
Baha adult implants were introduced in 1977
Baha pediatric implants were introduced in 1989 and FDA approved for children over 5 years old

Bone Anchored Device Design

Implant material, design, surface quality, bone status, surgical technique, and loading conditions are important factors
Osseointegration is the process of titanium implant bonding with bone

Baha System (Cochlear)

Size: 26 × 19 × 12 mm, Weight: 11.5 g
Fitting range: up to 55 dB SNHL
Average MPO: 113 dB
Frequency range: 200–9850 Hz
Features: Visual indicator (LED), Dust and water resistance (IP68), SmartSound iQ scene classifier & noise reduction, Direct streaming to Apple devices

Ponto System (Oticon Medical)

Size: 34 x 21 x 14 mm, Weight: 17 g
Fitting range: up to 65 dB HL
Average MPO: 113 dB
Frequency range: 260–9500 Hz
Features: Visual indicator (LED), Dust and water resistance (IP57), BrainHearing technology, OpenSound Optimizer, Made for iPhone, Oticon ON App

Indications and Contraindications

Indications: Unilateral or bilateral conductive hearing loss, Unilateral or bilateral mixed hearing loss, Unilateral sensorineural hearing loss, Failure with conventional hearing aids
Contraindications: Poor hygiene, Insufficient bone depth and bone quality, Children under 5 years old, Skin status or conditions that may hinder healing

Treatment Benefits

Improved speech intelligibility in noise
Reduced head shadow effect
Ear canals remain completely open
No cables needed for transmitting sound to hearing cochlea
Only 1 device needed, rather than 2 units for AC CROS system

Evaluation and Verification

FDA approved for age 5 and above
Audiogram and trial of soft band bone conduction hearing aid are necessary for evaluation
Verification methods: Skull simulator, Aided (soundfield) gain, Speech testing, Localization, Patient/parent questionnaire

Clinical Workflow

Prescribe listening levels
Use patient's own device to remeasure Θ‘s
Fit to targets using speech inputs
Measure output on skull simulator
Assess direct BC hearing via abutment

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Description

This quiz covers the types of bone-anchored hearing devices, including Ponto and Baha systems, their history, and features. It also touches on titanium osseointegrated implants and FDA approval.