Dental Hand Instruments
DHO 111 DAC and DAD HAND INSTRUMENTS AND DEVICES Dental Tools 4 PARTS OF DENTAL HAND INSTRUMENTS Handle Shank - joins the handle and a blade or nib. Cutting instrument = blade and a cutting edge, non-cutting instrument = nib and a face or point. . BASIC INSTRUMENTS MECS Mouth Mirror Increased visibility Reflecting light Retracting soft tissues Usual sizes No. 4 and 5 Constricted areas = No.2 2 general types: Plane mirror Magnifying mirror Cotton Pliers Dressing pliers Cotton pliers Serrated / non serrated Locking / non locking Useful to pick up small items and remove small items from the mouth. Used to to avoid contamination. Explorer are sharp, pointed metallic instruments so designed that the various surfaces of teeth may be conveniently reached with the explorer point. sense of touch mechanical penetration of defects in tooth surfaces. locating caries and enamel defects Spoon shaped excavator Used to remove decay from the tooth. Spoon out decay GENERAL CLASSIFICATION OF OPERATIVE INSTRUMENTS Dr. G.V. Black 6 Categories Cutting instruments Hand Hatchets Chisels Hoes Excavators Others Rotary Burs Stones Disks Others Condensing instruments Hand Pluggers Plastic instruments Spatulas Carvers Burnishers Packing instruments Finishing and polishing instruments Hand Orangewood sticks Polishing points Finishing strips Rotary Finishing burs Mounted brushes Mounted stones Rubber cups Impregnated disks and wheels Isolation instruments Rubber dam frame clamps, forceps, punch Saliva ejector Cotton roll holder Evacuating tips and equipment Miscellaneous instruments Mouth mirrors Explorers Probes Scissors Pliers Others HAND CUTTING INSTRUMENTS NOMENCLATURE Dr. Black prescribed four classes, similar to a biological classification:
Order Purpose of instrument Suborder Position or manner of use Class Form of working end Subclass Shape of the shank
Order Purpose of instrument Suborder Position or manner of use Class Form of working end Subclass Shape of the shank