Instrument Design & Recognition

Instrument Design & Recogni1on Founda1ons of Clinical Skills & Prac1ce Sarah Balian Intended Learning Outcomes By the end of the session students should be able to: Iden%fy three basic parts of a periodontal instrument and their varia%ons Iden%fy func%on, in rela%on to the design of the ins...

Instrument Design & Recogni1on Founda1ons of Clinical Skills & Prac1ce Sarah Balian Intended Learning Outcomes By the end of the session students should be able to: Iden%fy three basic parts of a periodontal instrument and their varia%ons Iden%fy func%on, in rela%on to the design of the instrument shank Explain the macro and micro design and func%on of the working end Categorise design features of hand scaling instruments contribu%ng to their func%onality Explain the classi>ca%on of hand scaling instruments (by both name and number) Tools of your trade Image Axminster Tools Feb 2021 Image Medgadget Tools Feb 2021 Three Basic Parts Working Shank Handle Shank Working End End Handle  handle Handle width can change S Evenly weighted Clinician Ergonomic Weight Textures Flexibility Rigidity preference tradeshows I ty them  ends to stop wider La squeezing Light Image Swallow Dental Tools Feb 2021 Image Todays RDH Dental Tools Feb 2021 lines fr grip dots for grip Image Dentsply Sirona Feb 2021 Image DZW Feb 2021 Shanks  - gives access to important Shanks -instrument Func1onal Shank 3 Lower Terminal Shank Diagram Extends Bent form 1st sec%on of bend shank (nearest nearest handle) up working to working end end  DiOerent Shanks- Simple & Complex teeth more suited for anteic posterior Simple Complex bends more bends not may - pretty straight - cusps - - round - doesn't go ene Gospel  mightfin deternoe Hicks move - Variability in Shanks -take pressure Standard & Extended Flexibility Rigidity roots I Shanks (longer Thinner Larger in diameter Enhance tac1le sensi1vity Withstand pressure to remove heavy calculus Can be considered less trauma1c Image Dimensions of DH 2021 Working End Working End Sickle CureSe Image Health U Feb 2021 Image UCLH Feb 2021 Working End Micro-anatomy Working Anatomy Working End Micro-anatomy Face Lateral surface CuNng edge Toe/Tip Middle Heel Image LippincoS Williams & Wilkins 2021  meets fall where side line of blade debriding surface side surface Micro-anatomy of Image LippincoS Williams & Wilkins 2021 working end  debrident done e most of Working end CureSe 1st your of instrument. Toe Middle Heel Image LippincoS Williams & Wilkins 2021 Working End Sickle pointed Tip Middle Heel Image LippincoS Williams & Wilkins 2021 Image UCLH Feb 2021 Cross Sec1on triangle CureSe randed Sickle = Coniversal) o o 0 0 Image LippincoS Williams & Wilkins Image LippincoS Williams & Wilkins 2021 2021 Stamping Design Name Design Number Iden%>es school or designer Number designa%on when 11terials E.g. Gracey assigned with design name Scaler provides exact iden%>ca%on grady used e.g. working-end Image UCLH Feb 2021  Exam #x Periodontal Instruments Assessment Deposit removal Instruments instruments Periodontal Explorers Sickles CureSes Probes  ruler can be multipupse Periodontal Probes - UNC15 probe Round or Ros-shaped Smooth round rectangular in working end 1p cross sec1on Some designs Instrument of have millimetre measuring or markings evalua1on Can you list its uses? Why is the rounded edge an advantage? Image UCLH Feb 2021 Varying presenta1ons of Periodontal Probes Nabers probe S librations end et and plastic Image from CDEWorld Feb 2021  Finding tools Explorers delicate & Fine, wire-like Circular in cross Sharp point working end sec1on Used to determine Used for evalua1on the loca1on and with maximum More Wexible shank extent of calculus tac1le conduc1on deposits notcalibrated Can you think of other uses? Image UCLH ODU Probe Feb 2021 Varying types of Periodontal Explorers Image Slideshare Feb 2021 Image UCLH ODU Probe Feb 2021 Sickle Scalers McFarland 23 Sickle (M23) Simple H6/H7 Cross Sec1on X Image UCLH Feb 2021 Image Quizlet 2021 Sickle Scalers Sopra-gingival Two cu^ng edges Cu^ng edges meet in pointed 1p Pointed back Triangular in cross sec1on Variety of sickles available Con>ned to supra-gingival (crown) use & should not be used on root surfaces Image UCLH Feb 2021 Say what you see…. tip toe middle O -middle - - -wer heal 2) I simple coups S curette sicke Image UCLH Feb 2021 Sickle video McFarland Enamel 23 supra- gingival A-traumatic in > sncus D e n t i Gingivae n Universal CureSes Two cuNng edges Spoon shaped working-end CuNng edges meet in rounded toe Rounded back protects issue = Semi-circular in cross sec%on Used both supra-gingivally & sub- gingivally for removal of light to moderately-sized calculus Features allow it to be inserted into the sulcus or pocket without trauma to the gingival %ssue Look again Comparing working end of molars Video of Langer CureZe and sickles Sickel curette Image UCLH Feb 2021 Universal CureSe - can use both cutting edges. Cross sec%on of Universal CureZe Image LippincoS Williams & Wilkins 2021  Enamel Diagram of cureZe in dental pocket D e Research names of other n universal cureSes t langeda i Gingivae n e Image UCLH Feb 2021 Say what you see damage roundedhars reach cause : gadupenda - - curette X I Sicked Image Pocket Den1stry Feb 2021  one cutting edge Site Specibc CureSe ~ Rounded back Rounded toe Semi-circular in cross-sec%on One working edge per working end Long complex shank design Can only be applied to speci>c surfaces & areas of the mouth A set of cureZes would be needed to instrument a whole mouth Image UCLH Feb 2021 Should only be used sub-gingivally Blade Angles an Blade tilt side cutting supracal - ng I specific site gi - instrument Image Cloudinary 2021 Research names of other site specibc cureSes After Fives Gracey - u - Image Pearson Dental 2021 Image LM Dental 2021 Gracey 1/2 Anterior region sub-gingival , , 1x cutting edge. Image LM Dental 2021 Image UCLH Feb 2021 Gracey 1/2 Grette Images from UCLH Feb 2021 Cu^ng Side Rounded Side Face Gracey 5/6 Anterior region , simple shank , I x cutting edge bigger working end than 1/2 Rounded Side Cu^ng Side &  boccer surfaces Molers Gracey 9/10 - lingual + of forback ed tell - simple but big , length come Cu^ng Side Rounded Side  complex share It cutting edge , , Gracey 11/12 toe , multirooted teeth / rounded mesially. Furcations Rounded Side Cu^ng Side - - > partners -  (11/12 partner) Gracey 13/14 Distal surfaces Cu^ng Side Face  Welcome any thoughts / comments Do you have any experiences regarding instruments you can share? Instrument maintenance These tools require care and maintenance to be eOec1ve Refer to ergonomics lecture Refer to Sharpening Lecture Sharpening Stone Di^erent types Require care Understand anatomy to understand usage of stones Refer to sharpening lecture Sharpening Stone Di^erent types Require care Understand anatomy to understand usage of stones Refer to sharpening lecture