This document provides information about different types of articulators used in dentistry. It begins with defining an articulator as a mechanical device that holds dental casts in varying positions to simulate jaw movement. It describes the simplest articulators as only accepting interocclusal records, while more sophisticated ones can accept all types of records. The document outlines the components and adjustments of semi-adjustable and fully adjustable articulators. It explains the basic parts of a mean-value articulator and its condylar guidance and incisal guide features. In closing, it defines the horizontal and lateral guidance functions in articulation.

1. INTRODUCTION TO
ARTICULATORS
NAME – RUCHIK C. PATEL
ENROLL NO.100420117048
BRANCH :- INSTRUMENTION AND CONTROL
SUBJECT :- IBA
SEMESTER:- 7th

2. Articulator
An articulator is a mechanical device used
in dentistry to which casts of the maxillary (upper)
and mandibular (lower) teeth are fixed,
reproducing recorded positions of the mandible in
relation to the maxilla. An articulator assists in the
fabrication of removable prosthodontic appliances
(dentures), fixed prosthodontic restorations
(crowns, bridges, inlays and onlays) and
orthodontic appliances

3. Simplest articulator
- can accept
only interocclusal records
Sophisticated articulator
- can accept all
types of records

4. SEMI ADJUSTABLE A.
Have adjustable horizontal condylar paths,
adjustable lateral condylar path
adjustable incisal guide table and
adjustable inter condylar distance.
Two Type
Arcon Type
Non arcon Type

5. FULLY ADJUSTABLE A.
Capable of being adjusted to
follow the mandibular movement
in all direction.
They donot have a condylar
guidance instead they have
receptacles.
Exp. Stuart Gnathoscope
Simulator

6. MEAN-VALUE ARTICULATOR
Upper member :Triangular frame
Vertical Rod with
thumb screw.
Two Condylar
elements

7. Incisal guide table :Contain
very
short
cylinder whose upper
surface is concave.
Vertical Rod should rest
on the center of the
incisal guide table during
articulation.

8. Condylar guidance
Represent by a slot
( condylar track)
Condylar element of
upper member passes
through this track.
A spring is mounted
within this track to
established the condylar
element.

9. Vertical Rod or Incisal Pin :Helps to keep a fixed
distance between the
upper & lower member at
anterior end.
The pointed tip of
vertical rod should rest
on the center of incisal
guide during articulation.

10. BASIC PARTS OF SEMIADJUSTABLE ARTICULATOR
Upper member
Lower member
Mounting plates
Condylar analogues
Condylar guidance
Incisal guide pin
Incisal guide table

11. Horizontal guidance
(anteroposterior) represents the
lingual slopes of the upper
anterior teeth.
Lateral guidance represents the
lingual slopes of maxillary
cannine/ lingual slopes of buccal
cusps of maxillary posterior
teeth.