sonic & ultrasonic
TRANSCRIPT
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SONIC &ULTRASONIC
INSTRUMENTATION
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USES AND AIMS OF POWER
DRIVEN SCALERSPlaque Removal
Calculus Removal
Endotoxin and Cementum removal
Access to Furcations
Pocket Penetration
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MECHANISM OF ACTION
Frequency times sec! insert ti"
m#$es %c' & (#rt) *urin+ cyc,e in n
#r%it,! e,,i"tic #r ,iner str#'e "t)-
Str#'e m. *ist t)e insert ti"
tr$e,s *urin+ /cyc,estr#'e "t)-
P#0er 'n#%1-
Wter 2#0 Acoustic streaming- unidirectional flow
2. Acoustic turbulence- swirling effect
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SONIC SCALERS
Air3*ri$en sc,ers in 0)ic) (requency
"r#*ues $i%rti#n #( insert ti"
4i+)3s"ee* #r ,#03s"ee* ir s#urce
Uni$ers, in *esi+n
E,,i"tic,3 #r%it, str#'e "ttern
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PIE5OELECTRIC
/- Operates in 25,000 to 50,000 cps. 2. Activated by dimensional changes in crystals
housed within the hand piece as electricity
is passed over the surface of the crystals.
3.Produces linear tip movement which allows
only 2 sides of the tip to be active at a time.
A variety of insert tip designs and shapes are
available.
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MA6NETOSTRICTIVE SCALERS7
1. O"ertes %et0een /8!999 n* :;!999 C"s
e,* t)t
cuses t)e ti" t# $i%rte-
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P#0er cermic *isc Liner "ttern3 < cti$e
0#r'in+ sur(ces
Wrenc) scre0s ti" int#)n*"iece
OELECTRIC
P#0er 3 Met, stc' E,,i"tic#r%it, : cti$e
0#r'in+ sur(ces Inserts re sete* in )n*"iece
NETOSTRICTIVE
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A!"#$O%$&'($')# *+$&A%O"'( #)'(#
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P,que & C,cu,us 3 De",quin+
#( r##t sur(ces &
su%+in+i$, sc,in+-
?OP! PD & C,- Attc)ment
Furcti#n Access C,ss II & III
3 *im#n* c#te* s#nic ti"s! (#r
#"en *e%ri*ement-
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BACTERIAL REDUCTION
U,trs#nic instruments usin+ )i+)3
s"ee* cti#n "r#*uce c$itti#n,
cti$ity & c#ustic stremin+
;mins 'i,,s A & P+
c),#r)e.i*ine ! 0ter & "#$i*#ne
i#*ine
sm##t)er sur(ce
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S#nic & U,trs#nic Ti"s
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Lr+e tenci#us *e"#sits
Site s"eci>c *esi+n
6in+i$itis & *e",quin+mintennce "tients
6reter ccess & r##t*"tti#n
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Insert Scaler Tip
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Adjust knob
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Water spray
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perator position
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RESULTSBefore Scaling
After Scaling
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PRINCIPLES OF INSTRUMENTATION
M#*i>e* "en +rs"
0it) e.tr#r, (u,crum-
Li+)t "ressureDe"#sit rem#$, (r#m
c#r#n, t# "ic,
De",quin+ str#'e
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CONCLUSION
6reter ccess
su%+in+i$,,y ! in
(urcti#n res &
increse* e@ciency
in sc,in+ time-
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