41. Cavity preparation by Black versus minimally and micro invasive techniques.

Question 1

1. How to compare for “Black versus minimally and micro invasive techniques”?

Answer 1

Principles, operation and examples

Question 2

2A. Black versus minimally and micro invasive techniques - Principles

Principle of Cavity preparation by Black

Answer 2

Black: EXTENSION FOR PREVENTION→aim was to prevent the secunder caries
◦ the border of the cavity should be extended to areas that are normally self- cleaning, or cleansable, therefore healthy tooth structure can be removed

Question 3

2B. Black versus minimally and micro invasive techniques - Principles

What are general principles of minimally and micro invasive techniques?

Answer 3

1/ to keep all the teeth and those functions through the life
2/ Based on 4 modalities
- The early detection of caries and risk factors
- reduction of cariogenic microbes
- remineralization of early lesions
- Preparation and minimally invasive treatment of the evolved lesions

Question 4

2C. Black versus minimally and micro invasive techniques - Principles

How to reduce cariogenic microbes during minimal intervention dentistry?

Answer 4

With the propagation of natural remineralization of enamel with diethetic and plaque control, saliva control.

Question 5

2D. Black versus minimally and micro invasive techniques - Principles

How to prepare and minimally invasive treats the evolved lesions during MID?

Answer 5

• Biofilm modulation
• preventive closure of the caries predilection areas

Question 6

3A. Black versus minimally and micro invasive techniques - Examples
- What are some examples of Black rules (extension for prevention)?

Answer 6

Box form requirements:
- flat cavity floor
- min 2mm depth
- parallel or convergent walls
- 1.6 mm marginal ridges

Question 7

3B. Black versus minimally and micro invasive techniques - Examples
- What are some examples of Micro-invasive techniques?

Answer 7

Ozone therapy
Infiltration /ICON®

Question 8

3C. Black versus minimally and micro invasive techniques - Examples
- What are some examples of Minimally invasive: techniques?

Answer 8

1/ Enamel microabrasion
2/ Air abrasion
3/ Hydroabrasion
4/ Oscillating or rotary (Special techniques for approximal box preparation and tunnel preparation)
5/ Ultrasonic / sonoabrasive
6/ Laser
7/ Chemical (acid) to improve microadhesion by surface demineralisation => roughening