INSTRUMENTS & EQUIPMENTS
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community
Ask the community for help and clear up your study doubts
University Rankings
Discover the best universities in your country according to Docsity users
Free resources
Our save-the-student-ebooks!
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Dentistry made easy through simple notes and quick to memories, Schemes and Mind Maps of Dental Anatomy
Dentistry made easy Dental anatomy for clearing up basics and focusing better on dental materials and instruments . Basic gist of dental materials along with a pictorial presentation of dental materials which helps for better understanding of topics
Typology: Schemes and Mind Maps
2023/2024
1 / 156
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download Dentistry made easy through simple notes and quick to memories and more Schemes and Mind Maps Dental Anatomy in PDF only on Docsity!
INSTRUMENTS & EQUIPMENTS
Definition
Instruments:
Small hand held
devices that are
used for various
procedures while
treating a patient.
E.g. Mouth
mirrors, probes,
dressing pliers and
condensers.
Materials used for manufacturing instruments.
1. Carbon steel:
- (^) they contain 0.5-
1.5% carbon.
- (^) They are harder
and sharper
than stainless
steel, but tend
to corrode and
are prone for
fracture.
2.Stainless steel a) Pure stainless steel
- (^) they are alloys composed of 70-85% iron, 15-25% chromium & 1-2% carbon. Most commonly used material for making dental instruments. They tend to lose their sharpness due to its repeated use. b) Stainless steel with teflon/titanium nitride coating - (^) This type of instruments are specially used for placement and handling of dental composites. - (^) Main advantage : composite does not stick to this coating and make placement of composites simplified.
Classification of Operative dental Instruments. Instruments are classified into 2 categories :
- Hand Instruments: Instruments which are used manually.
- Rotary Instruments : Instruments which are engine- driven.
Sturdevant classification
Parts of Hand
cutting instruments:
Hand cutting instruments are made up of three parts:
- Handle/shaft
- Shank
- Blade
Based on shank angles GV Black clalssified hand cutting instruments: A) Straight: No angles in the shank B) Monangle: One angle in the shank C) Bin-angle: Two angles in the shank D) Triple-angle: three angles in shank
Blade It is the working end of the hand cutting instrument. It is connected to handle by the means of shank. It ends in the cutting edge. a)Cutting edge: Edge of blade mainly for cutting action. b)Blade angle : angle between long axis of blade and shaft c)Cutting edge angle : angle between margin of cutting edge and long axis of shaft.
According to G.V. Black, Instruments can be named as…….. 1.Order: Purpose or Function of instrument. Eg, Excavator 2.Sub-order: Position or Manner of Use of instrument. Eg, pull and push 3.Class: Form of working end of instrument. Eg, Chisel, Hatchet
4. Sub-class: Shape of the shank. Eg, Bin-angle Combining all these points, the Instruments can be named. Naming- usually moves from 4 to 1
Example……
Bin-angle hatchet push excavator. Generally sub-order is not useful and thus omitted. Thus, named as Bin-angle hatchet excavator Bin angle- Shank angle hatchet - Working end excavator - Purpose