• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Minimal Intervention Dentistry – The Challenge for Materials
 

Minimal Intervention Dentistry – The Challenge for Materials

on

  • 1,988 views

 

Statistics

Views

Total Views
1,988
Views on SlideShare
1,986
Embed Views
2

Actions

Likes
1
Downloads
68
Comments
0

1 Embed 2

http://www.slideee.com 2

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Minimal Intervention Dentistry – The Challenge for Materials Minimal Intervention Dentistry – The Challenge for Materials Presentation Transcript

    • Minimal Intervention Dentistry – The Challenge for Materials John W. Nicholson University of Greenwich
    • Minimal Intervention Dentistry - Modern approach to the treatment of tooth decay - Based on “Medical Model” of caries management
    • Historical Development of Dentistry
      • Extraction;
      • Surgical approach (“ drilling and filling ”): after G.V. Black;
      • Medical approach – Minimal Intervention .
    •  
    •  
    • G.V. Black
      • Developed in the 1890s;
      • Highly formalised cavity design;
      • “ Extension for prevention”.
    • Critique of G.V. Black’s approach
      • A surgical model;
      • Caries “cured” by excision, then filling;
      • Appropriate for weak, non-adhesive materials;
      • Still the prevailing paradigm in the profession.
    •  
    •  
    •  
    •  
    • The Minimal Intervention approach
      • A medical model;
      • Caries treated as a biological infection;
      • Surgical techniques are minor and stress retention of tooth tissue.
    • Details of the MI approach
      • (1) Reduces cariogenic bacteria;
      • (2) Uses preventive measures;
      • (3) Early lesions remineralised;
      • (4) Minimal surgery on cavities;
      • (5) Repair of defective restorations.
    • (1) Cariogenic bacteria
      • Caries is a bacterial disease;
      • Depends on dietary sucrose;
      • Driven by frequency of eating;
      • Modified by saliva.
    •  
    • (2) Preventive measures
      • Topical fluoride;
      • Fissure sealants;
      • Patient education on oral hygiene
    • (3) Remineralisation
      • Requires management by non-intervention;
      • Enhanced by fluoride ion in saliva.
    • (4) Minimal surgery
      • Requires adhesive materials (glass-ionomers, adhesive composite systems);
      • Innovative, bespoke cavity design:
        • Possibly without drilling (ART technique).
    • (5) Repair of materials
      • To prevent cavity extension;
      • Not “botch job”, but appropriate.
    • The challenge for materials
      • Adhesion
        • Occurs naturally for glass-ionomers; problematic for composites.
      • Fluoride-release;
      • Release of other mineralising ions (PO 4 , Ca 2+ );
      • Repairable.
    • Conclusions
      • Minimal Intervention dentistry is the future:
        • Advocated by FDI;
        • Cost effective;
        • Less trauma for the patient.
      • A biological approach, not a mechanical one.
      • Makes significant demands on materials.