Part II: Periodontal Debridement Routine Prevention or Necessary Treatment? Dental prophylaxis OR periodontal therapy Removal of deposits from supragingival and subgingival surfaces of the teeth Uses nonsurgical instrumentation
To prevent OR arrest infection General anesthesia What does that entail? Risks
Cost Explore the Teeth Dental explorer has a slender, wire-like working end that tapers to a sharp point and is used to explore the topography of the tooth surface (crowns)
Explore caries Acid producing bacteria demineralization of enamel and dentin What is the most common surface affected?
Looking for pulp exposure Check for Attachment Loss Periodontal probe Round, blunt instrument Miniature intraoral ruler measures: 1. Attachment levels (gingival recession and sulcus
depths) 2. Loss of bone in furcation areas Used to assess mobility of teeth and the presence of gingival bleeding. What is normal sulcus depth for a canine? Feline?
Periodontal Probe Williams markings have millimeter increments at 1,2,3,5,7,8,9 and 10mm.
Calculus Removers Removes gross calculus, supragingivally Which teeth do you think need this tool the most?
Scaling Above the Gingiva Hand scaler used to remove tartar / calculus supragingivally Modified pen grasp technique
Gives precise control of the instrument; limits wrist motion Where should all of your fingers be? Working end Shank
Handle Scaling Below the Gingiva Curette-used to remove tartar subgingivally Modified Pen Grasp *Tip is more round/dull than the hand scaler.
Periodontal Debridement Using Machines Ultrasonic scaler- uses vibrations and irrigation to remove tartar from surface of tooth.
Steady stream of water (strong mist) flushes out the sulcus AND can disrupt bacterial cell walls Ultrasonic Scaler Water through the tip also acts as a coolant; this machine can get very hot! Move tip from the sulcus, down the
Crown, to the apex. Time line/tooth? Ultrasonic Scalers: Two Options 1. Magnetostrictive- magnetic field in the hand piece is created by zinc and nickel, sends vibrations to the tip in an elliptical pattern All surfaces of the tip vibrate!
Most vibrations are on the tip Use least amount of vibrations Found on the lateral surfaces Magnetostrictive Scaler INCORREC T
Distal third of tip should be held at 0-15 from long axis of the tooth. Ultrasonic Scalers: Two Options 2. Piezoelectric- ceramic discs or crystal that produces linear movements
Only lateral surfaces vibrate More skill required More fragile/breakable Expensive Periodontal Debridement
Polishing VERY IMPORTANT The scaler microscopically scratches the tooth surface and creates more surface area quicker bacterial build up 1-3 seconds/tooth Prophy angle- attachment that is connected to the hand piece
Removable rubber cup holds polish, or prophy paste Patient Position/Safety Comfortable for you and the patient Plenty of light Elevate neck; nose down
Opening of mouth Oral speculum Suction/gauze Preemptive rinse PPE
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