Connectors

Question 1

platal strap

Answer 1

palatal
Strap should be no thinner than 8mm to keep structural integrity

Question 2

lingual bar

Answer 2

minimum of 4mm away from gingival tissue ideal amount is 8mm depth in sulcus/margin tissue
Disadvantage - high lingual fraenum
Minimum tissue coverage
Does not contact teeth so decalcification is minimised

Question 3

Lingual plate-

Answer 3

plate- more tissue/dentition coverage
Used: high fraenum removes the possibility of lingual bar
Can help to stabilise periodontal weak teeth

Cannot use- if wide embrasures or diastima (reduced aesthetics- but can be modified)
Lingual inclined teeth (undercuts)

Disadvantages: covers tooth structure and gingival tissue

Question 4

Double lingual bar (Kennedy bar/continuous lingual bar):

Answer 4

distributes stress to all teeth, reducing stress to tissue
Adavantages: effectively extends indirect retention in anterior direction
Contributes to horizontal stabalization
Gingival tissue not covered
Disadvantages: can feel unusual in mouth due to multiple bars
Can act as a food trap if contact not maintained

Question 5

additional types of major connectors

Answer 5

Sublingual bar

Continuous bar

Labial/buccal bar

Swinglock

Question 6

minor connectors

Answer 6

considered minor connectors and join the components making up vital areas of the denture together with the rest.

Question 7

oral anatomical consideration when choosing connectors

Answer 7

patients allegers
combability
how it works in their mouth
any irritations

Question 8

what are connector and the two types

Answer 8

Connectors are classified as major or minor
Major connector is defined as ‘the area of a denture that links the saddles’
Minor connector joins smaller components such as rest seats, clasps and retention

Question 9

how are connectors chosen

Answer 9

Function
Anatomical constraints
Hygiene
Rigidity
Patient acceptability

Question 10

where are most connectors found

Answer 10

There is a greater variety of major connectors for the maxilla, this is due to surface area of the hard palate allows for multiple designs.

Question 11

what a Palatal plate

Answer 11

basic design that links all saddles and other components, on bounded saddles can utilise tooth support.
Pros:

Question 12

palatal plate pros

Answer 12

leaves gingival margins uncovered
Simple outline
Well tolerated

Question 13

palatal plate cons

Answer 13

Weight
Cannot alter postdam

Question 14

Ring design (can also be called skeleton):

Answer 14

ideal if multiple saddles are presented, widely distributed on the arch.
It can utilise tooth support. Shows good rigidity for low bulk.
Anterior bar can interfere with swallowing and speech and therefore may not be tolerated

Depending on literature 4-6mm distance from gingival tissue required- 6mm ideal!

Question 15

maxilla further designs

Answer 15

Horse shoe

Full palate

Palatal strap

Palatal bar

Question 16

major connectors maxilla further designs

Answer 16

Consider the indications and contraindications of these designs:
Patient acceptance.
Mucosa coverage.