Major connector Flashcards
(28 cards)
purpose of Major connector?
joints components of one arch to the other
Types of MC
2: Maxillary & Mandibular
Borders of major connector should cross palatal midline at what angle?
right/90
Maxillary Major connector must be located at what distance from the gingival margin ?
6mm
Mandibular Major connector must be located at what distance from the gingival margin?
3mm
The borders of MC should be ______
smooth and rounded
minor elevations at borders of MC is ?
Bead Lines
height of bead lines
0.5-1mm
Types of MC
Maxillary and Mandibular
Types of Maxillary MC
- palatal bar
- palatal strap
- antero-posterior palatal bar
- antero-posterior palatal strap
- Horseshoe or U shape MC
- Complete Palate
Thickest point of Palatal bar
at the center
Most common indications of Palatal bar (Kennedy classification)
Class III
Indications of Palatal bar (type of dentures)
Interim Dentures
A palatal bar must derive all its support from _________________.
Rests on remaining teeth
(this is due to narrow anteroposterior width)
Name the type of MC
Palatal Bar
What is the height of a palatal Strap?
8mm
What is the anteroposterior dimension of the palatal strap?
8mm
width of palatal strap is directly proportional to _______
length of edentulous space
A palatal strap is preferred for which type of Kennedy Classification?
Class II & Class III
Design of Anteroposterior Palatal Bar
2 bars joined by flat longitudinal elements
T/F?
An A-P palatal bar derives maximum support from the Bony palate?
False
A U-shaped MC width on palatal tissues is
6mm-8mm
Main indications for Horse-shoe MC
missing a lot anterior teeth
T/F?
A U-shaped MC provides less cross-arch stabilization
True
