 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Medical Forum / General / Dentistry / May 2008Diagnodent?
Looking for a new dentist. (I'm sorry I'm too far away from SB!) I see a couple advertising the use of something called a Diagnodent for detecting decay. Is this a true advance, or is it hyped up? Can this actually help detect decay underneath composit fillings? >Looking for a new dentist. (I'm sorry I'm too far away from SB!) I see a >couple advertising the use of something called a Diagnodent for detecting >decay. Is this a true advance, or is it hyped up? Can this actually help >detect decay underneath composit fillings? Think Amatus has one, there are others here that also have this instrument IIRC. Perhaps they will chime in. The DiagnoDent is useful for "staging" decay on teeth that do NOT already have a filling. If there is a filling on the tooth, the DiagnoDent does NOT help much. It's best use is to give a numerical value to some early decay between teeth or in the center of a tooth, then compare the numerical value at subsequent visits. This way you can tell if the lesion is changing or not. I does help you make you decision of borderline lesions that you are not 100% certain need a filling. A high number on the DiagnoDent will indicate the need to fill the tooth soon. It is a nice way of "staging" decay. Amatus Now back to practicing Chords. >>Looking for a new dentist. (I'm sorry I'm too far away from SB!) I see >>a [quoted text clipped - 6 lines] > > Perhaps they will chime in. >The DiagnoDent is useful for "staging" decay on teeth that do NOT already >have a filling. If there is a filling on the tooth, the DiagnoDent does NOT [quoted text clipped - 10 lines] > >Now back to practicing Chords. It takes at least 3 notes to make a chord. (can you do that on a violin ?) Two disparate notes are called an 'interval'. Certainly arpeggios are well within the range of your stringed instrument, but that's another topic. 8^]] >>>Looking for a new dentist. (I'm sorry I'm too far away from SB!) I see >>>a [quoted text clipped - 6 lines] >> >> Perhaps they will chime in. An instrument set-up for "country-style" playing has the bridge cut rather flat so that 3 and 4 note chords are easy. An instrument set-up for "classical" playing (like mine) has more curve to the bridge and you can easily drag the bow across 2 strings at one time. If you apply more pressure to the bow, you can depress the center string (of 3) and play a 3-note chord with moderate effort. A 4-note chord on my instrument is not possible without playing up on the finger-board. A 4-note chord on a classical set-up is played as a transitional sound of blending two 3-note chords in one bow stroke. Many intervals are played with a second violin playing the 3rd and 4th notes to create a 3 or 4 note chord sound to the listener. You will hear this most of the time with music written for quartets.  Signature/ Amatus / > >>The DiagnoDent is useful for "staging" decay on teeth that do NOT already [quoted text clipped - 36 lines] >>> >>> Perhaps they will chime in. > An instrument set-up for "country-style" playing has the bridge cut rather > flat so that 3 and 4 note chords are easy. Are country fiddles made with the same radius fingerboard? Classical guitars have a flat fingerboard, but almost all other instruments whether acoustic or electric have radiused fingerboards (though not as curvy as violins). Are violin bridge saddles "compensated" like guitar saddles? I actually see this less often in classical guitars. I think it has something to do with temperament, but I'd guess without frets you can compensate with your fingering. The (late) Lou Harrison wrote some music (I think he may have transposed some of his own music from harp) for resophonic guitar with curved frets. Some instruments are actually set up with separate frets for each string, and they all can move. I have enough problems tuning as it is. But learning resophonic would be kewl. Steve > An instrument set-up for "classical" playing (like mine) has more curve to > the bridge and you can easily drag the bow across 2 strings at one time. If [quoted text clipped - 7 lines] > to create a 3 or 4 note chord sound to the listener. You will hear this > most of the time with music written for quartets. > Are country fiddles made with the same radius fingerboard? The radius of the fingerboard has no effect on the ability to bow across multiple strings at one time, so they don't change it. > Classical guitars have a flat fingerboard, but almost all other > instruments whether acoustic or electric have radiused fingerboards > (though not as curvy as violins). > Are violin bridge saddles "compensated" like guitar saddles? I don't know what a compensated saddle would be. A violin saddle is a small peice of ebony at the very bottom of the belly of the instrument over which the tail-gut extends from the tail-piece to the end-bottom. The strings terminate at the "near" end of the tail-piece. > I actually see this less often in classical guitars. I think it has > something to do with temperament, but I'd guess without frets you can [quoted text clipped - 4 lines] > and they all can move. I have enough problems tuning as it is. But > learning resophonic would be kewl. What is resophonic mean? I personally find it tough trying to play with frets since I cannot compensate the tone if the instrument goes slightly off tune while playing. > Steve >> [quoted text clipped - 9 lines] >> notes to create a 3 or 4 note chord sound to the listener. You will hear >> this most of the time with music written for quartets. >> Are country fiddles made with the same radius fingerboard? > [quoted text clipped - 21 lines] > > What is resophonic mean? A resophonic guitar generally has a steel top with cones to amplify the sound. It is usually played with a slide, and therefore I'd think with altered tunings. The best known brands are National Steel and Dobro. Here's a National: http://tinyurl.com/66sp5a > I personally find it tough trying to play with frets since I cannot > compensate the tone if the instrument goes slightly off tune while playing. That's one reason why they say guitarists spend half their time tuning and the other half playing out of tune. Steve >> Steve >>> An instrument set-up for "classical" playing (like mine) has more curve [quoted text clipped - 8 lines] >>> notes to create a 3 or 4 note chord sound to the listener. You will hear >>> this most of the time with music written for quartets. Neat looking instrument ! At my lesson this past Saturday, my instrument was a bit less than one half step sharp. Rather than re-tune, I simply moved my hand position a tiny bit higher on the fingerboard. And,,,,,,,,,,, I was still in tune. {We tune to "A" (440). My "A" string ended up a bit sharp on initial tuning up and the other 3 strings were tuned high to match it.} Signature/ Amatus / >>> Are country fiddles made with the same radius fingerboard? >> [quoted text clipped - 50 lines] >>>> notes to create a 3 or 4 note chord sound to the listener. You will >>>> hear this most of the time with music written for quartets. > Neat looking instrument ! > [quoted text clipped - 3 lines] > "A" (440). My "A" string ended up a bit sharp on initial tuning up and the > other 3 strings were tuned high to match it.} See, to a fretted instrument player, the idea of making those kinds of intonation adjustments on the fly is mind-boggling. Steve SignatureMark & Steven Bornfeld DDS http://www.dentaltwins.com Brooklyn, NY 718-258-5001 And, to someone who plays without frets, the limitations, on tone, with frets seems constrictive. When playing a piece with accidentals mixed in, it is common to exaggerate the sharp or the flat so as to increase the difference between the tones. We might place the finger a quarter step further away from the key signature note to make the accidental stand out more. With my fat finger tips, this often means just tipping the finger slightly. Signature/ Amatus / >> Neat looking instrument ! >> [quoted text clipped - 8 lines] > > Steve > And, to someone who plays without frets, the limitations, on tone, with > frets seems constrictive. Ya, but Newbie can bend his strings for microtonal effects. Not so easy with nylon strings though. Steve When playing a piece with accidentals mixed in, > it is common to exaggerate the sharp or the flat so as to increase the > difference between the tones. We might place the finger a quarter step > further away from the key signature note to make the accidental stand out > more. With my fat finger tips, this often means just tipping the finger > slightly. SignatureMark & Steven Bornfeld DDS http://www.dentaltwins.com Brooklyn, NY 718-258-5001 >> And, to someone who plays without frets, the limitations, on tone, with >> frets seems constrictive. [quoted text clipped - 3 lines] > >Steve True about me but, why not with nylon ? Are natural fiber strings even made anymore ? > When playing a piece with accidentals mixed in, >> it is common to exaggerate the sharp or the flat so as to increase the >> difference between the tones. We might place the finger a quarter step >> further away from the key signature note to make the accidental stand out >> more. With my fat finger tips, this often means just tipping the finger >> slightly. >>> And, to someone who plays without frets, the limitations, on tone, with >>> frets seems constrictive. [quoted text clipped - 5 lines] > True about me but, why not with nylon ? > Are natural fiber strings even made anymore ? Yes, gut strings are made, but they're unreliable and expensive. There's something called "nylgut" which is supposed to have some of the qualities of gut but is less temperamental and less expensive. I've never used it though. Willie Nelson bends his nylon strings, but you have to work much harder to change the pitch. Vibrato is generally accomplished like a violin--moving the finger back and forth with the axis of the string rather than across the fingerboard. Steve I use a synthetic core metal wound string. It gives almost the warmth and complexity of sound as gut, but stretches in faster and stays in tune much better. My instrument actually stayed in tune the past 3 days without touching the pegs. --Light rain the past few days, and my old instrument seems to like the high humidity. Signature/ Amatus / >> >>>> And, to someone who plays without frets, the limitations, on tone, with [quoted text clipped - 17 lines] > > Steve > I use a synthetic core metal wound string. It gives almost the warmth and > complexity of sound as gut, but stretches in faster and stays in tune much > better. My instrument actually stayed in tune the past 3 days without > touching the pegs. --Light rain the past few days, and my old instrument > seems to like the high humidity. Your average classical string set has monofilament nylon first, second, and third strings. The set I use comes with 2 3rd (G) strings--one in standard nylon, one referred to as "composite". For reasons I don't know, the third string is almost always the weakest for volume, and I think for intonation as well. The composite is supposed to help this. The fourth, fifth and sixth strings are metal-wound polyfilament nylon. In steel string sets the first thru third strings are wire; the fourth thru sixth metal wound wire core. I believe Segovia was the one who complained about the performance of gut strings--nylon strings were developed by Augustine, under Segovia's direction: http://www.albertaugustine.com/history_content.html Steve Gut strings are still available for violins. There is actually more being made now than a few years ago. Signature/ Amatus / > >>> And, to someone who plays without frets, the limitations, on tone, with [quoted text clipped - 15 lines] >>> more. With my fat finger tips, this often means just tipping the finger >>> slightly. >And, to someone who plays without frets, the limitations, on tone, with >frets seems constrictive. When playing a piece with accidentals mixed in, [quoted text clipped - 3 lines] >more. With my fat finger tips, this often means just tipping the finger >slightly. Due to the nature of my jumbo frets, can do this by exerting more finger pressure or slighly bending the note. The string doesn't have to contact the fingerboard on a fretted instrument and in my particular case (heavy strings, high action) they rarely do. >> Neat looking instrument ! >> [quoted text clipped - 8 lines] > >Steve Only to some, my boy, only to some. >> I personally find it tough trying to play with frets since I cannot >> compensate the tone if the instrument goes slightly off tune while playing. [quoted text clipped - 3 lines] > >Steve Nice ! > Looking for a new dentist. (I'm sorry I'm too far away from SB!) I see > a couple advertising the use of something called a Diagnodent for > detecting decay. Is this a true advance, or is it hyped up? Can this > actually help detect decay underneath composit fillings? Diagnodent cannot read through an existing filling. It is for detecting lesions that originate from the surface of a tooth. www.kavo.com/Default.aspx?navid=40&oid=002&lid=En John
|
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.