Design 3

Question 1

4 functions of major connector

Answer 1

• vertical support / soft tissue protection
• indirect retention
• promote patient comfort
• linking of saddle areas

Question 2

5 options of major connector in maxilla

Answer 2

• ring
• horseshoe
• palatal strap
• palatal bar (rare)
• palatal coverage

Question 3

when to use a ring

Answer 3

multiple bounded saddles

good option. lots of tooth support –>ring –> can feel temp of food on palate

Question 4

advantage of horseshoe denture 5

Answer 4

• strong
• useful for missing anterior teeth (aesthetics?)
• relieves palate
• gains some support from tissues
• good to pts with strong gag reflex

Question 5

disadvantages of horseshoe denture4

Answer 5

• can deflect and distort in free end saddles
• bulk of metal on anterior border
• no suction from palate
• not bulky –> not v rigid

Question 6

advantages of palatal strap/bar 4

Answer 6

• thin and versatile
• can be in 2 planes increasing rigidity
• well tolerated by pts
• inc surface area –> good tissue support

Question 7

disadvantages of palatal strap 2

Answer 7

• must be at least 8mm wide for strength

- pts can be sensitive to strap border positioning

Question 8

ideal position of palatal strap

Answer 8

posterior to rugae, anterior to hard-soft palate border

Question 9

disadvantages of palatal bar 3

Answer 9

• bulky
• narrow –> little support from palatal tissues
• if anterior to second premolar region may impede speech

Question 10

are palatal bars/straps more common? when is other used

Answer 10

straps more common (thinner, more tolerable)

bar used if pt already has bar

Question 11

advantage of complete palate denture 2

Answer 11

• ultimate rigidity and support

- most comfortable

Question 12

disadvantages of complete palate denture 3

Answer 12

• extensive coverage of tissues (no free palate)
• oral hygiene, denture hygiene issues
• difficult to adjust/get well-fitted coverage of palate

Question 13

rules for borders of maxillary major connectors

Answer 13

• must be at least 3mm from gingival margin or extended onto palatal tooth surfaces
• should blend with anatomy
• borders that contact soft tissue should be beaded –> less distinct as approach gingivae

Question 14

what maxillary major connector to use with good/bad perio support

Answer 14

good: palatal strap (/bar)
bad: more tissue support (palatal coverage, ring etc)

Question 15

3 possible max major connectors when anterior teeth need replacing

Answer 15

• ring
• complete palate
• horseshoe

Question 16

2 poss max major connectors when tori present

Answer 16

• ring

- horseshoe

Question 17

6 poss mandibular major connectors

SEE TABLE

Answer 17

• lingual bar
• sublingual bar
• dental bar
• kennedy bar
• lingual plate
• labial bar

Question 18

order of preference of mandibular major connectors

Answer 18

1. lingual bar
2. lingual plate if teeth missing
3. kennedy (more technically demanding)
4. sublingual bar(in functional sulcus)
5. dental bar
6. labial bar

Question 19

what order to survey

Answer 19

1. horizontal then other directions