31번 백승진 예방논문2 발표

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31번 백승진 예방논문2 발표

  1. 1. International Journal of Periodontics andRestorative Dentistry5조 31번 백승진
  2. 2.  Primary goal of periodontal treatment Flap surgery vs. nonsurgical planing Ultrasonic with mini-inserts vs. manualcurettes
  3. 3.  Treatment◦ 10 single-rooted teeth destined for extraction◦ Two step treatment was performed General ultrasonic supragingival scaling Surface planing By manual curette without time limit on distal surfaces By ultrasonic inserts on mesial surfaces
  4. 4.  SEM observations◦ 2.5% glutaraldehyde in pH 7.2 buffer, 24 hours◦ Rinsed 3 times in 0.1mol/L cacodylate buffer◦ Dehydrated with ethanol and acetone◦ Dried by CO2 and Balzers CPD 0.10◦ Secondary electrons vs. backscattered electrons
  5. 5.  Comparing two instrumentation proceduresvs. comparing two periodontists Moderate lateral pressure vs. high lateralpressure
  6. 6.  Goal: elimination of all plaque and calculus Moderate lateral pressure is better Not depend on the instrumentation itself, buton how it performed, particularly on thepressure
  7. 7.  With strong lateral pressure◦ More scratching◦ Cementum removal◦ Dentin exposure
  8. 8.  Smoother surfaces in moderate lateralpressure Cracked or “dried-mud” appearance Less smear layer with ultrasonic treatmentthan with manual treatment
  9. 9.  New ultrasonic generator and inserts are aseffective as nonsurgical manual curettes Degree of lateral pressure is a vital factor New mini-inserts are better in apical zones aslong as moderate lateral pressure is used

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