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Thread: Domes styles, open, closed, double, sizes, customs?

  1. #11
    Join Date
    Dec 2008
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    Oakland, Ca. & Aventura (Miami), Fl
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    406

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    I have had HA for six years. My number is are about the same as yours. Another term that confused me for years are the words "molds/domes". For a long time I thought they were just alternative words for the same item. While they both contain the speaker/receiver-the word "mold", which I have, refers to a custom fitted object that goes into your ear. The term "dome" refers to an object that is off-the-shelf. I think I have that terminology all correct.
    When I first got myHA, the audiologist use some kind of wax mold to send out to have the molds made that would fit perfectly in my ears. It never occurred to me such objects would be bought off the shelf. Contrary to what some have posted here in various forum threads, I've functioned perfectly with my open fit molds. Compared to the price of the HA, the cost is negligible. I don't know what they cost, exactly, because my HMO included it with the total cost and didn't break out the cost separately.
    Before making the final purchase, I took my test results to Costco to see what they offered. They wanted to sell me a closed system that what is prevented me from using a telephone man in a normal manner. Fortunately, I had been reading messages on this forum and knew I was a candidate for an open fit system. That allows me to use a regular telephone (the few that are loud) and the Bluetooth headset which I wear much of the day-even for years before purchasing the HA.
    I had absolutely no problem wearing the HA all waking hours from day one. I just had the usual "getting used to sounds I hadn't heard for years" syndrome.
    Mike
    250 --500-- 1000-- 1500-- 2000-- 3000-- 4000-- 8000
    35 --- 25----- 30---- 45----- 55----- 65----- 80----- 95
    (Both ears almost identical)

  2. #12

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    Fortunately, I had been reading messages on this forum and knew I was a candidate for an open fit system.

    Seriously?

  3. Default

    Quote Originally Posted by miket View Post
    I have had HA for six years. My number is are about the same as yours. Another term that confused me for years are the words "molds/domes". For a long time I thought they were just alternative words for the same item. While they both contain the speaker/receiver-the word "mold", which I have, refers to a custom fitted object that goes into your ear. The term "dome" refers to an object that is off-the-shelf. I think I have that terminology all correct.
    When I first got myHA, the audiologist use some kind of wax mold to send out to have the molds made that would fit perfectly in my ears. It never occurred to me such objects would be bought off the shelf. Contrary to what some have posted here in various forum threads, I've functioned perfectly with my open fit molds. Compared to the price of the HA, the cost is negligible. I don't know what they cost, exactly, because my HMO included it with the total cost and didn't break out the cost separately.
    Custom molds is a hard shell mold made from the wax impression of your ear canal. This is not off-the-shelf because you need to send the impression in to get the custom molds made to fit your ear canals. I think custom molds probably run between $60-$100 per ear nowadays? My audi told me it'd be around $80 to make one for me.

    Domes on the other hand are off-the-shelf because they're just round symmetrical soft silicone domes that can be inserted into most ear canals and will conform to the ear canal (due to their soft flexible shape) and hopefully provide a snug fit if the right size is used, and if the ear canal is regular symmetrical shapes. No custom wax impression needs to be made and sent in like with custom molds. If the domes work out, the patient can walk out with the HAs after the first appointment.

    If the domes don't work out well for you because they don't fit right and snug in your ear canal and cause too much feedback, custom mold is the next resort to help provide a more snug fit.

    You refer to "open fit" molds. I'm confused on what you mean by "open fit". You mean your hard custom molds have vent holes in them? Maybe large vent holes?
    HA wearer since the 1990's > Rexton Insite+ CIC (2011-2016) > Oticon OPN RITE (2016)

    KHz 0.25...0.5...0.75...1.0...1.5...2.0...3.0...4.0... 6.0...8.0

    Left ...10...10....10.....30.....70....75....80....95.. ..90....80
    Right .25...30....40.....55.....75....85....90....90...1 00...100

  4. #14
    Join Date
    Feb 2015
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    NW Indiana
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    Costco does them for $40/ea. If you think you are missing something, use your little fingers to cover the canal and converse. You hear a louder version that may benefit. Understand that aids are adjusted for the mold/dome used and it won't be exact. But you may find it better for understanding.
    Hidden Content
    KS6's w. Phone Clip +
    There is nothing either good or bad, but thinking makes it so. -- William Shakespeare





  5. #15

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    bob h, just a question: was the itchy dome you had clear silicone? Cuz I've heard that about 1 in 20 people have problems with that material. I opted for Widex power dome (doubles) in a smoke topaz color. Believe me, I have SUPER sensitive skin, and so far, I've had ZERO discomfort wearing these domes for a good 16 hours a day! Explore other materials.

    The fact that your domes are constantly slipping OUT of your canal could mean that you just have super oily skin. My hard-case aids are FAR more likely to extrude from my ears (causing leaky-squeaky!) after a good workout or if I'm in a very humid climate. On the other hand, my silicone domes tend to stay PUT really good! (I've actually got a pair of hard-case ITEs and my newer silicone domed RIEs).

    As another post suggested: ask your audiologist to put a "leash" on your receiver component. I found that VERY useful the first month or so I had these Opns. They were like training wheels that kept the aids snug and helped me get them out at day's end. You may need a leash to help your receivers seat and stay put.

    Try various combos till you achieve total comfort AND quality sound. It's definitely row to hoe till it all comes together. Let us know what works for you!
    HAs from 1985>Starkey>Phonak>AGX>Oticon Agil Pro ITE>Oticon Opn miniRITE

    KHz 0.25...0.5...1.0...2.0...3.0...4.0....6.0...8.0

    Left ..65....80....80....65.....65....60....65....90
    Right 65....80....80....75.....75....70....65....90

  6. Default

    Thanks for the advice and encouragement.

    I don't think I'm reacting to the silicone, I think it was just the extra pressure of the larger double domes I tried first. They also went deeper into my ear canal, and weren't vented. I don't think I can tolerate non-vented, although I'll probably give them another try just to make sure.

    At the moment I'm getting along fair, by adding a concha lock (leash?) on the left side, which works pretty well. Right side it seems the shape of my ear just doesn't want to keep the lock In place.

    I'm guessing a bit, but it seems the shape of my canals don't give the domes a good place to sit, there's nothing to keep them from just pushing out.

    I've got custom fitted molds coming, suggested by a friend here locally who's got many years of experience with HA's, and several good comments here about them.

    The aids themselves are working out well in spite of the difficulty with the domes etc.

    As many have advised, It takes time and experimentation to get it to all work!
    Freq 250 500 1K 2K 4K 8K
    Right -15 -35 -50 -60 -60 -90
    Left -20 -40 -60 -55 -65 -75

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    Quote Originally Posted by Neville View Post

    You could try adding the retention tails first. Sometimes they are enough. If not, go to custom tips.
    This is what worked for me. I was able to use small (comfortable) open domes, and they don't fall out.
    Regards,

    Duncan

    0250 Hz 25 25
    0500 Hz 25 35
    1000 Hz 30 45
    2000 Hz 40 50
    4000 Hz 50 75
    8000 Hz 70 95

    And severe tinnitus (Does the noise in my head bother you?)

    KS 7s

  8. #18
    Join Date
    Sep 2007
    Location
    Manassas, VA
    Posts
    1,434

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    When I first got my ReSound Cala 8 aids from Costco, I was using a medium power dome. They were constantly backing out. I tried tulip domes, and they would back out too, but not as much; I also preferred the sound from the power domes. The fitter at Costco cut a u-shaped chunk out of the larger rear dome, and that solved the problem. They went in deep and stayed there with no issues.

    That worked fine while I waited for custom molds to come in. I has them installed a couple of days ago, and really like them. ReSound made them, molded permanently around the receivers. I'd tried acrylic molds a few years ago where you jammed the receiver into the mold, and hated them, but these are really nice.
    Attached Images Attached Images
    Phonak Brio 2, ComPilot II, TVLink II from Costco

    Freq R L
    250 30 35
    500 40 40
    750 40 40
    1000 40 40
    1500 25 35
    2000 35 30
    3000 50 40
    4000 50 50
    6000 75 60
    8000 80 80

  9. #19

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    ^^^^ That is a really nice resolution for the perfect FIT! Yes, it is a bit of rocket science to find the right receiver piece to sit comfy in the canal and provide a perfect seal. I also found the (M) double dome and tulip domes just too loose for me. So far, the (L) power domes are working out great, but if I had the time & money, I'd sure like to try out the custom-molded receiver case like you have.

    I have to ask: with these custom molds, does the receiver also sit DEEPER into your ear canal than with the typical silicone dome? Cuz that would be another huge improvement. I ask cuz I see the tiny twig at the end to enable pulling it OUT at day's end.
    HAs from 1985>Starkey>Phonak>AGX>Oticon Agil Pro ITE>Oticon Opn miniRITE

    KHz 0.25...0.5...1.0...2.0...3.0...4.0....6.0...8.0

    Left ..65....80....80....65.....65....60....65....90
    Right 65....80....80....75.....75....70....65....90

  10. Default

    Quote Originally Posted by jay_man2 View Post
    When I first got my ReSound Cala 8 aids from Costco, I was using a medium power dome. They were constantly backing out. I tried tulip domes, and they would back out too, but not as much; I also preferred the sound from the power domes. The fitter at Costco cut a u-shaped chunk out of the larger rear dome, and that solved the problem. They went in deep and stayed there with no issues.

    That worked fine while I waited for custom molds to come in. I has them installed a couple of days ago, and really like them. ReSound made them, molded permanently around the receivers. I'd tried acrylic molds a few years ago where you jammed the receiver into the mold, and hated them, but these are really nice.
    I assume that the clear section is the part that goes into the canal, and the brown section of the mold is the part that is visible from the outside and it fills out the ear "well", is that right?

    So it looks like the receiver sits in the brown section because I don't see any receiver in the clear section, is that right? Is that still as effective as the receiver sitting deeper into the canal? Do you lose some volume if it sits that far out from the ear canal?

    Also, if the receiver goes bad in this case, I assume that you'd have to make a new mold for a new receiver, right?
    HA wearer since the 1990's > Rexton Insite+ CIC (2011-2016) > Oticon OPN RITE (2016)

    KHz 0.25...0.5...0.75...1.0...1.5...2.0...3.0...4.0... 6.0...8.0

    Left ...10...10....10.....30.....70....75....80....95.. ..90....80
    Right .25...30....40.....55.....75....85....90....90...1 00...100

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