Pros tutorials 1

Question 1

how much of retromolar pad area should be covered by a denture

Answer 1

no more than 1/3

Question 2

how much space should be left between sulcus and tray

Answer 2

2-3mm to allow rounding of impression material over edges

Question 3

what is RCP

Answer 3

guided occlusal relationship occuring at the most retruded position of the condyles in the joint cavity
can be used if insufficient index teeth

Question 4

how can we modify unfavourable survey lines

Answer 4

addition of composite
(more favourable clasping and improved retention)

Question 5

precision attachments

Answer 5

rarely used - technically demanding, difficult to repair and replace
denture connects to attachment on crown/implant etc

Question 6

when may a two part denture be used

Answer 6

gross tissue loss and different paths of insertion

Question 7

swinglock denture

Answer 7

lingual plate with hinge on one side and lock on the other
acrylic buccal plate engages interdentally between the teeth
technically demanding

Question 8

what should be added to dentures for bruxists

Answer 8

metal backings on occlusal surfaces

Question 9

what is retching

Answer 9

physiological mechanism seeing involuntary contraction of the muscles of the soft palate or pharynx
modified by higher centres in the medulla
severity varies between patients

Question 10

what are the two broad types of retching, that may co-exist

Answer 10

psychogenic - retching may occur by sight/smell
somatic - touching trigger zones

Question 11

name 3 clinical methods for dealing with a gag reflex

Answer 11

1. relaxation techniques - breathing, dim lighting
2. distraction - salt on tongue, raising legs
3. desensitisation - repeated stroking of palate with finger or toothbrush homework

Question 12

factors involved in dissatissfaction of dentures

Answer 12

• reduced self esteem
• aesthetic expectations not met
• facial aesthetics changed due to tooth loss
• decreased chewing efficacy

Question 13

definition of an implant

Answer 13

artificial tooth root that is surgically anchored into the jaw to hold a replacement tooth or teeth or a denture in place

Question 14

name 3 implant attachments for dentures

Answer 14

locator attachment (button like)
ball and socket
gold bar
CAD CAM titanium bar

Question 15

peri implant mucositis

Answer 15

inflammation of the peri-implant mucosa with no evidence of crestal bone loss
tissues will appear red and swollen and may bleed on gentle probing

Question 16

peri implantitis

Answer 16

infection with suppuration and inflammation of the soft tissues surrounding an implant
significant loss of peri implant crestal bone

Question 17

what does the Mcgill consensus 2002 state the 1st line treatment for edentate mandibles should be

Answer 17

implant overdenture to increase quality of life
significant cost implication

Question 18

3 components of combination syndrome

Answer 18

bone loss from anterior part of maxillary ridge
hypertrophy of tuberosities
papillary hyperplasia in hard palate
extrusion of mandibular anterior teeth
bone loss under denture base

Question 19

name 3 reasons why dentures fracture

Answer 19

• impact
• acrylic in thin section
• parafunctional habits
• occlusion

Question 20

examples of stengtheners that can be used to aid denture strength

Answer 20

wire mesh
glass fibre mesh
stainless steel wire