III.Selected instruments in restorative dentistry



Instruments for investigation
 Mirror


Instruments for investigation
 Straight probe


Instruments for investigation
 Periodontal probe -calibrated


 Tweezer



 Preparation  - techniques
• Power driven – mostly rotary
•
• Hand
•
• Less common – laser, ultrasound etc.

 Turbine handpiece
•  400.000 rpm
• Low torque control, vigorous preparation
turbina

 Electromotor and Air Motor
•Electromotor – maximum 40.000 rpm
• Air motor – maximum 20.000 rpm
• The rpm is possible to modify using hanpieces
•with various gear.
• High speed
•Low speed
•Gear 1:1
•Oscillation
•(rotation is blocked)
•
•
•
•
•
•
•

 High speed handpiece
kolenkocervene
•Red coded. Better control in comparison with the turbine handpiece
•

 Gear 1:1
• Blue coded. Preparation in dentin recommended
kolenko modre

 Low speed handpiece
• Suitable for slow worh e.g. excavation of carious dentin
•
zelenekolenko

 Special handpieces
• Handpiece for compaction of amalgam
•EWA system ( instrument does not rotate, if oscillate only) •Handpieces for endodontology and
implantology

 Hand instruments
•Chisels
• Fopr finishing of gingival wall in class II
sikmitka dlatka

Excavator
•Ostrý, lžičce podobný nástroj k odstranění kazivého dentinu.


 Rotary instruments
• Burs and diamonds.
•ISO norm 6360
•5   figures A – E
•A- material (Stainless steel, tungsten -carbide,diamond)
•B,C  size and kind of the handpiece (straight handpiece, contraangle, turbine)
•D shape of the working part (ball, pear,fissure)
•E  further characterization ( blades or grit)

 Shape of the shank
Contra angle handpiece              Turbine handpiece


konusek kulicka hruška fissurka1
•Inverted cone, pear formed bur, fissure bur, round (ball) bur

Konu

 Diamonds
• Blue - standard (90 – 120 mm) ISO 524
• Universal use
•

Diamonds
•Black extra coarse (150 – 180 mm) ISO 544 –  No for cavities, e.g. for cutting old crowns


Diamonds
•  Green -   coarse (125 – 150 mm) ISO 534,
•For special purposism no for cavities
•

Diamonds
• Red- fine ( 20 – 40 mm) ISO 514 –  finishinf of preparation – smoothen of beveling
•

Diamonds
• Yellow – extra fine (12 – 22mm) ISO 504,
•Finishing of composite fillings
•

Diamonds
•   White –ultra fine (6-12 mm) ISO 494 –
•Polishing of composite fillings

 Preparation instruments
for cavosurface margin


 Preparation instruments
for finishing of borders


 Preparation instruments
Bur for excavation of carious dentin


 Rotary instruments for polishing of fillings – Arkansas stone



 Rotary instruments for finishing
 extra fine diamonds


 Rubber rotary instruments – for polishing



Nástroje k úpravě výplní
Rotační kartáčky


 Filling instruments
Spatula + condensor


 Detail of a condensor



 Spatula (3 angled)



 Spatula in detailb(3 angled)



Frahm



Discoid-cleoid



 Wiland - carver



 Burnishers



 Instrument for composite fillings



 Instrument for composite fillings



 Condensor