ATYPICAL TOOTH
PREPARATION
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.ind...
CONTENTS
Part 1 – Basics of tooth preparation
a. Definition
b. Caries control
c. Preparation objectives
d. Finish lines
e....
Part 2 –
a. Preparation modification for
damaged teeth
b. Atypical tooth preparation
c. preparation modification for
speci...
www.indiandentalacademy.com
TOOTH PREPARATION
Tooth Preparation is defined as the
mechanical treatment of dental
disease or injury to hard tissues
tha...
CARIES CONTROL
Why important
Removal procedure
Sequence of removal
www.indiandentalacademy.com
PREPARATION OBJECTIVES
1. Reduction of the tooth in miniature to provide retainer
support.
2. Preservation of healthy toot...
1. Sequence of tooth preparation
2. Contour
3. Intracoronal Vs Extra coronal
4. Tooth structure conservation
5. Gingival t...
Errors in tooth preparation
Selection of retainer
Occlusion and tooth preparation
Difficult restorative treatment
OTHER CO...
FINISH LINES
1. Supragingival Vs Subgingival
Margins
2. Types of finish lines
www.indiandentalacademy.com
PRINCIPLES OF TOOTH PREPARATION
1.      Preservation of tooth structure
2.      Retention and resistance form
3.      Stru...
RETENTION
Taper and retention
Surface area
Area under shear
Surface roughness
www.indiandentalacademy.com
RESISTANCE
Method to analyze resistance form
Factors influencing resistance
1. Leverage
2. Length
3. Width
4. Taper
5. Rot...
INSTRUMENTATION
1. Water colling
2. Diamond stones
3. Tungsten carbide burs
4. Twist drills
5. Diamond burs
www.indiandent...
www.indiandentalacademy.com
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Atypical tooth preparation/fixed orthodontics courses

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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.

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Atypical tooth preparation/fixed orthodontics courses

  1. 1. ATYPICAL TOOTH PREPARATION INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. CONTENTS Part 1 – Basics of tooth preparation a. Definition b. Caries control c. Preparation objectives d. Finish lines e. Principles of tooth preparation f. instrumentation www.indiandentalacademy.com
  3. 3. Part 2 – a. Preparation modification for damaged teeth b. Atypical tooth preparation c. preparation modification for special situation d. preparation for periodontally weak teeth www.indiandentalacademy.com
  4. 4. www.indiandentalacademy.com
  5. 5. TOOTH PREPARATION Tooth Preparation is defined as the mechanical treatment of dental disease or injury to hard tissues that restores a tooth to original form. www.indiandentalacademy.com
  6. 6. CARIES CONTROL Why important Removal procedure Sequence of removal www.indiandentalacademy.com
  7. 7. PREPARATION OBJECTIVES 1. Reduction of the tooth in miniature to provide retainer support. 2. Preservation of healthy tooth structure to secure resistance form 3. Provision for acceptable finish lines 4. Performing pragmatic axial tooth reduction to encourage favorable tissue responses from artificial crown contours, i.e., fluting of molars. www.indiandentalacademy.com
  8. 8. 1. Sequence of tooth preparation 2. Contour 3. Intracoronal Vs Extra coronal 4. Tooth structure conservation 5. Gingival termination of preparation CLINICAL CONSIDERATION www.indiandentalacademy.com
  9. 9. Errors in tooth preparation Selection of retainer Occlusion and tooth preparation Difficult restorative treatment OTHER CONSIDERATION www.indiandentalacademy.com
  10. 10. FINISH LINES 1. Supragingival Vs Subgingival Margins 2. Types of finish lines www.indiandentalacademy.com
  11. 11. PRINCIPLES OF TOOTH PREPARATION 1.      Preservation of tooth structure 2.      Retention and resistance form 3.      Structural durability of the restoration 4.      Marginal integrity 5.      Preservation of the periodontium www.indiandentalacademy.com
  12. 12. RETENTION Taper and retention Surface area Area under shear Surface roughness www.indiandentalacademy.com
  13. 13. RESISTANCE Method to analyze resistance form Factors influencing resistance 1. Leverage 2. Length 3. Width 4. Taper 5. Rotation around vertical axis 6. Path of insertion www.indiandentalacademy.com
  14. 14. INSTRUMENTATION 1. Water colling 2. Diamond stones 3. Tungsten carbide burs 4. Twist drills 5. Diamond burs www.indiandentalacademy.com
  15. 15. www.indiandentalacademy.com

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