Instrument Design & Recognition PDF

05/09/2023 Instrument Design & Recognition Foundations of Clinical Skills & Practice Sarah Balian 1 Intended Learning Outcomes By the end of the session students should be able to: Identify three basic parts of a periodontal instrument and their variations Ide...

05/09/2023 Instrument Design & Recognition Foundations of Clinical Skills & Practice Sarah Balian 1 Intended Learning Outcomes By the end of the session students should be able to: Identify three basic parts of a periodontal instrument and their variations Identify function, in relation to the design of the instrument shank Explain the macro and micro design and function of the working end Categorise design features of hand scaling instruments contributing to their functionality Explain the classification of hand scaling instruments (by both name and number) 2 1  05/09/2023 Tools of your trade Image Axminster Tools Feb 2021 Image Medgadget Tools Feb 2021 3 Three Basic Parts Working Shank Handle Shank Working End End 4 2  05/09/2023 Handle 5 Handle Evenly weighted Clinician Ergonomic Weight Textures Flexibility Rigidity preference 6 3  05/09/2023 Image Swallow Dental Tools Feb 2021 Image Todays RDH Dental Tools Feb 2021 Image Dentsply Sirona Feb 2021 Image DZW Feb 2021 7 Shanks 8 4  05/09/2023 Shanks Functional Shank Lower Terminal Shank Diagram Extends Bent form 1st section of bend shank (nearest nearest handle) up working to working end end 9 Different Shanks- Simple & Complex Simple Complex 10 5  05/09/2023 Variability in Shanks Standard & Extended Flexibility Rigidity Shanks Thinner Larger in diameter Enhance tactile sensitivity Withstand pressure to remove heavy calculus Can be considered less traumatic Image Dimensions of DH 2021 11 Working End 12 6  05/09/2023 Working End Sickle Curette Image Health U Feb 2021 Image UCLH Feb 2021 13 Working End Micro-anatomy Working Anatomy Working End Micro-anatomy Face Lateral surface Cutting edge Toe/Tip Middle Heel Image Lippincott Williams & Wilkins 2021 14 7  05/09/2023 Micro-anatomy of Image Lippincott Williams & Wilkins 2021 working end 15 Working end Curette Toe Middle Heel Image Lippincott Williams & Wilkins 2021 16 8  05/09/2023 Working End Sickle Tip Middle Heel Image Lippincott Williams & Wilkins 2021 Image UCLH Feb 2021 17 Cross Section Sickle Curette Image Lippincott Williams & Wilkins Image Lippincott Williams & Wilkins 2021 2021 18 9  05/09/2023 Stamping Design Name Design Number Identifies school or designer Number designation when E.g. Gracey assigned with design name provides exact identification e.g. working-end Image UCLH Feb 2021 19 Periodontal Instruments Assessment Deposit removal Instruments instruments Periodontal Explorers Sickles Curettes Probes 20 10  05/09/2023 Periodontal Probes Round or Ros-shaped Smooth round rectangular in working end tip cross section Some designs Instrument of have millimetre measuring or markings evaluation Can you list its uses? Why is the rounded edge an advantage? Image UCLH Feb 2021 21 Varying presentations of Periodontal Probes Image from CDEWorld Feb 2021 22 11  05/09/2023 Explorers Fine, wire-like Circular in cross Sharp point working end section Used to determine Used for evaluation the location and with maximum More flexible shank extent of calculus tactile conduction deposits Can you think of other uses? Image UCLH ODU Probe Feb 2021 23 Varying types of Periodontal Explorers Image Slideshare Feb 2021 Image UCLH ODU Probe Feb 2021 24 12  05/09/2023 Sickle Scalers Sickle (M23) H6/H7 Cross Section Image UCLH Feb 2021 Image Quizlet 2021 25 Sickle Scalers Two cutting edges Cutting edges meet in pointed tip Pointed back Triangular in cross section Variety of sickles available Confined to supra-gingival (crown) use & should not be used on root surfaces Image UCLH Feb 2021 26 13  05/09/2023 Say what you see…. Image UCLH Feb 2021 27 Sickle video Enamel D e n t i n e Gingivae 28 14  05/09/2023 Universal Curettes Two cutting edges Spoon shaped working-end Cutting edges meet in rounded toe Rounded back Semi-circular in cross section 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 tissue 29 Look again Comparing working end of molars Video of Langer Curette and sickles Image UCLH Feb 2021 30 15  05/09/2023 Universal Curette Cross section of Universal Curette Image Lippincott Williams & Wilkins 2021 31 Enamel D e Diagram of curette in dental pocket n t i n e Research names of other universal curettes Gingivae Image UCLH Feb 2021 32 16  05/09/2023 Say what you see Image Pocket Dentistry Feb 2021 33 Site Specific Curette Rounded back Rounded toe Semi-circular in cross-section One working edge per working end Long complex shank design Can only be applied to specific surfaces & areas of the mouth A set of curettes would be needed to instrument a whole mouth Image UCLH Feb 2021 Should only be used sub-gingivally 34 17  05/09/2023 Blade Angles Image Cloudinary 2021 35 Research names of other site specific curettes After Fives Gracey Image Pearson Dental 2021 Image LM Dental 2021 36 18  05/09/2023 Gracey 1/2 Image LM Dental 2021 Image UCLH Feb 2021 37 Gracey 1/2 Images from UCLH Feb 2021 Cutting Side Rounded Side Face 38 19  05/09/2023 Gracey 5/6 Rounded Side Cutting Side 39 Gracey 9/10 Cutting Side Rounded Side 40 20  05/09/2023 Gracey 11/12 Rounded Side Cutting Side 41 42 21  05/09/2023 Gracey 13/14 Cutting Side Face 43 Welcome any thoughts / comments Do you have any experiences regarding instruments you can share? 44 22  05/09/2023 Instrument maintenance These tools require care and maintenance to be effective Refer to ergonomics lecture Refer to Sharpening Lecture 45 Sharpening Stone Different types Require care Understand anatomy to understand usage of stones Refer to sharpening lecture 46 23