ikg05 sap preparasi saluran akar
TRANSCRIPT
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PREPARASI SALURAN PREPARASI SALURAN AKARAKARAKARAKAR
Epita Sarah PaneEpita Sarah Pane
Bagian Konservasi FKG USUBagian Konservasi FKG USU
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Inside the pulp area……
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What we would like to have What we would like to have ?
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Konsep preparasiKonsep preparasi
Koronal dan apikal.Koronal dan apikal.
A= Apex radiografikA= Apex radiografik
B = Resistance formB = Resistance formB = Resistance formB = Resistance form
C = Retention formC = Retention form
D = Convenience formD = Convenience form
E = Outline formE = Outline form
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What are we going to do?What are we going to do?
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Apical instrumentation
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AimsAims
�� CleaningCleaning�� Membersihkan saluran akar dari sisaMembersihkan saluran akar dari sisa--sisa organiksisa organik
�� ShapingShaping�� Membentuk saluran akar agar bisa diisi secara Membentuk saluran akar agar bisa diisi secara
optimaloptimal
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CleaningCleaning
Membersihkan saluran akar dengan melakukan Membersihkan saluran akar dengan melakukan debridemen.debridemen.
�� DebridemenDebridemen= mengeluarkan iritan yang ada = mengeluarkan iritan yang ada maupun yang mampu menjadi iritan dari maupun yang mampu menjadi iritan dari maupun yang mampu menjadi iritan dari maupun yang mampu menjadi iritan dari seluruh sistem saluran akar.seluruh sistem saluran akar.
�� IritanIritan = bakteri, produk bakteri, jaringan = bakteri, produk bakteri, jaringan nektorik, debris organik, jaringan vital, produk nektorik, debris organik, jaringan vital, produk dari saliva, darah, dll.dari saliva, darah, dll.
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�� Teknik debridemenTeknik debridemen�� Menggunakan Menggunakan
instrumen dengan instrumen dengan menyentuh / menekan menyentuh / menekan menyentuh / menekan menyentuh / menekan / menyusuri seluruh / menyusuri seluruh dinding saluran akar dinding saluran akar
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Access errors
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Access errors = canal prep errors
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Access errors = canal prep errors
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Access error = canal prep error
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Access errors = canal prep errors
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Carefull of radiograph interpretation !!!
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Instrumentation Instrumentation
Teknik Dasar menggerakkan fileTeknik Dasar menggerakkan file1.1. FileFile2.2. ReamReamTeknik kombinasi file dan reamTeknik kombinasi file dan reamTeknik kombinasi file dan reamTeknik kombinasi file dan ream1.1. Turn and pullTurn and pull2.2. WatchWatch--windingwinding3.3. Serial shapingSerial shaping4.4. Balanced forceBalanced force
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Filing motionFiling motion
�� PushPush--pull action with instruments (pull action with instruments (FilingFilingtechniquetechnique))
�� With KWith K--file but capable of damaging the canal file but capable of damaging the canal very quicklyvery quicklyvery quicklyvery quickly
�� Effective with HedstromEffective with Hedstrom--type filetype file
�� Limitation:Limitation:�� Easily cut the middle of a curvature and cause a Easily cut the middle of a curvature and cause a
strip perforationstrip perforation
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Reaming motion Reaming motion
�� Reaming techniqueReaming technique
�� Clockwise or rightClockwise or right--hand rotation of an hand rotation of an instrument.instrument.
Risk of rotating instruments: instrument Risk of rotating instruments: instrument �� Risk of rotating instruments: instrument Risk of rotating instruments: instrument fracturefracture
�� Effective with reamer (reamer’s use a more Effective with reamer (reamer’s use a more axial orientation of their cutting edge) axial orientation of their cutting edge)
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Turn and Pull motionsTurn and Pull motions
�� One quarter turn to the right (reaming)is One quarter turn to the right (reaming)is followed by a straight outward pull (filing).followed by a straight outward pull (filing).
�� Effective if the instrument is not forcefully Effective if the instrument is not forcefully pushed toward the apex and subsequent pushed toward the apex and subsequent pushed toward the apex and subsequent pushed toward the apex and subsequent instruments are steppedinstruments are stepped--back from the apical back from the apical terminusterminus
�� Limitation: tendency towards “hourglass” Limitation: tendency towards “hourglass” canal shapecanal shape
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Watch Watch –– winding motionswinding motions
�� Back and forth oscillation of a file (30 to 60 Back and forth oscillation of a file (30 to 60 degrees) right and 30 to 60 degrees left as the degrees) right and 30 to 60 degrees left as the instruments is pushed forward into the canalinstruments is pushed forward into the canal
�� Effective with KEffective with K--file, can be used with reamerfile, can be used with reamer�� Effective with KEffective with K--file, can be used with reamerfile, can be used with reamer
�� The instrument is not to be pushed The instrument is not to be pushed aggressively into the canalaggressively into the canal
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WatchWatch--winding and pull motionswinding and pull motions
�� When used with Hedstrom files, watchWhen used with Hedstrom files, watch--winding motion cannot cut dentin.winding motion cannot cut dentin.
�� WatchWatch--winding is maintained while the file is winding is maintained while the file is gently rocked right and left until meets gently rocked right and left until meets gently rocked right and left until meets gently rocked right and left until meets resistance, then it is time freed by a pull stroke.resistance, then it is time freed by a pull stroke.
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Serial shaping motionsSerial shaping motions
�� With six unique motions of files and reamers: With six unique motions of files and reamers: follow, followfollow, follow--withdraw, cart, carve, smooth withdraw, cart, carve, smooth and patency.and patency.
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Balanced force motionsBalanced force motions
�� The most effective technique to cut dentinThe most effective technique to cut dentin�� The oscillation of the preparation instruments The oscillation of the preparation instruments
right and left with a different arc in each right and left with a different arc in each direction.direction.direction.direction.�� Light inward pressure, initiating ¼ turn to the Light inward pressure, initiating ¼ turn to the
right, larger arc is used when the file is rotated right, larger arc is used when the file is rotated to the left to drill the canal open. Alternate to the left to drill the canal open. Alternate these two directions until the working depth is these two directions until the working depth is reached.reached.
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Steps in root canal preparationSteps in root canal preparation
�� Initial measurementsInitial measurements
�� Tentative working lengthTentative working length
�� Radiograph of Initial Apical File (IAF)Radiograph of Initial Apical File (IAF)
�� Setting instrumentsSetting instruments
�� Canal preparationsCanal preparations
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Initial Apical FileInitial Apical File
�� File apikal awalFile apikal awal
�� File pertama yang bisa dimasukkan ke dalam File pertama yang bisa dimasukkan ke dalam saluran akar sepanjang kerjasaluran akar sepanjang kerja
File pertama bisa nomor berapa saja, File pertama bisa nomor berapa saja, �� File pertama bisa nomor berapa saja, File pertama bisa nomor berapa saja, tergantung besar saluran akar. File tidak boleh tergantung besar saluran akar. File tidak boleh longgar, tidak boleh ketat.longgar, tidak boleh ketat.
�� Masukkan file ke saluran akar sesuai panjang Masukkan file ke saluran akar sesuai panjang kerja estimasi dan ambil radiographnya.kerja estimasi dan ambil radiographnya.
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Root canal preparation Root canal preparation -- ObjectivesObjectives
�� A continuously tapering preparationA continuously tapering preparation
�� Original anatomy maintainedOriginal anatomy maintained
�� Position of the foramen maintainedPosition of the foramen maintained
�� Foramen as small as is practicalForamen as small as is practical
TOTAL SPACE OBTURATION
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Root canal preparationRoot canal preparation--techniquetechnique
�� Standardized technique Standardized technique
�� Step back technique = serial techniqueStep back technique = serial technique�� Starting at the apexStarting at the apex
Step down technique = crown downStep down technique = crown down�� Step down technique = crown downStep down technique = crown down�� Starting at the orifice of the canalStarting at the orifice of the canal
�� Combination or hybrid technique = step down Combination or hybrid technique = step down –– step back technique, modified doublestep back technique, modified double--flared flared techniquetechnique
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Standardized techniqueStandardized technique
Round, tapperred, almost paralell
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Step back techniqueStep back technique
�� Starting at the apex with fine instruments and Starting at the apex with fine instruments and working one’s way backworking one’s way back--up or down with up or down with progressively larger instruments.progressively larger instruments.
�� Introduced by Mullaney.Introduced by Mullaney.�� Introduced by Mullaney.Introduced by Mullaney.
�� Designed to avoid apical zipping in curved Designed to avoid apical zipping in curved canalcanal
�� Still suitable in curved canalsStill suitable in curved canals
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A. Phase I – Apical preparation up to file no.25 with recapitulation using prior size file
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B. Phase II – Stepping back procedure in 1mm increments, nos 25 through 45. Recapitulation with a no.25 file to full working length.
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C. Refining phase IIA-gates glidden drill nos 2, 3 and 4 used to create coronal and midroot preparation
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D. Refining Phase II-B – No.25 file, circumferential filing smooths step-back
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E. Completed preparation – a continuos flowing flared preparation from the cementodentinoenamel junction to the crown.
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In curved canalsIn curved canals
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Always curved filesAlways curved files
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Always use lubricantAlways use lubricant
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Step down techniqueStep down technique
�� Advocated by Marshall and Pappin, called Advocated by Marshall and Pappin, called CrownCrown--down pressureless preparationdown pressureless preparation
�� Using gates glidden and larger files in the Using gates glidden and larger files in the coronal third of the canals and progressively coronal third of the canals and progressively coronal third of the canals and progressively coronal third of the canals and progressively smaller files are used from the ‘crownsmaller files are used from the ‘crown--down’ down’ until the desired length is reacheduntil the desired length is reached
�� Known as Step down = crown down Known as Step down = crown down technique.technique.
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�� Primary purpose: to minimize or eliminate the Primary purpose: to minimize or eliminate the amount of necrotic debris that could be amount of necrotic debris that could be extruded through the apical foramen during extruded through the apical foramen during instrumentation. instrumentation. �� Will prevent post treatment discomfort, Will prevent post treatment discomfort,
incomplete cleansing and difficulty in incomplete cleansing and difficulty in incomplete cleansing and difficulty in incomplete cleansing and difficulty in achieving a biocompatible seal at the apical achieving a biocompatible seal at the apical constriction.constriction.�� Advantage: freedom from constraint of the Advantage: freedom from constraint of the
apical enlarging instruments by coronal apical enlarging instruments by coronal flaring.flaring.
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Hybrid techniqueHybrid technique
�� StepStep--down step backdown step back
�� KK--file series step down techniquefile series step down technique
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Modified techniqueModified technique
�� Ruddle techniqueRuddle technique
�� Profile GT taper techniqueProfile GT taper technique
�� Quantec instrument techniqueQuantec instrument technique
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Stainless steel instrumentation Stainless steel instrumentation limitationslimitations
�� Too many instruments and steps neededToo many instruments and steps needed
�� Each resultant shape is differentEach resultant shape is different
�� Canal transportationCanal transportation
�� Excessive dentin removal with rotary Excessive dentin removal with rotary instrument such as gates glidden bursinstrument such as gates glidden burs
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Nickel titaniumNickel titanium
�� FlexibleFlexible
�� Fatigue and fail if overstressed, especially Fatigue and fail if overstressed, especially during rotation during rotation -- fracturefracture
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Nickel titanium rotary Nickel titanium rotary instrumentationinstrumentation
�� Profile systemProfile system
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�� Protaper systemProtaper system
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�� Light speed systemLight speed system
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UltraUltra --sonic Instrumentationsonic Instrumentation
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File dibengkokkanFile dibengkokkan
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