Lesson 11

Question 1

defined as the static relationship between the incising or masticating surfaces of the maxillary or mandibular teeth or tooth analogues.

Answer 1

Occlusion

Question 2

defined as the static and
dynamic contact relationship between the occlusal
surfaces of the teeth during function.

Answer 2

Articulation

Question 3

occlusion of opposing
teeth when the mandible is in centric relation. This
may or may not coincide with the maximal
intercuspal position.

Answer 3

Centric Occlusion

Question 4

an occlusion other
than centric occlusion. This includes lateral and
protrusive occlusion.

Answer 4

Eccentric Occlusion

Question 5

refers to the
occlusion existing when the mandible is in the
protrusive position.

Answer 5

Protrusive Occlusion

Question 6

refers to the occlusal
contacts occurring when the mandible is in the right
or left lateral positions.

Answer 6

Lateral Occlusion

Question 7

Reasons for using CR in edentulous patients

Answer 7

1. Allows function to all positions.
2. Conducive to health (non-pathologic) Brill et al -
   pain and loss of occlusal sense when not in CR
   Reynolds - 24% of normal population has CR=CO
3. Convenient - relatively centered condyles
   (Celenza)
4. More reproducible (Grasser) - easier to set a
   stable maximum intercuspation
5. CR is not far from CO at same occlusal vertical
   dimension (Wilson and Nairn)

Question 8

How to obtain CR

Answer 8

The patient should be placed in a slightly supine,
position.
2. Place notches in the occlusion rim to aid in
stabilizing the record bases with index fingers on
the rim, and thumbs under symphysis.
3. Jiggle the lower jaw - the mandible should freely
arc.
4. Allow the patient to close the last portion.
5. DO NOT PUSH THE MANDIBLE or dislodge the
record base.
6. The registration media must be dead soft, when the
patient close into it.

Question 9

e
bilateral simultaneous, anterior and posterior
occlusal contact of teeth in centric and eccentric
position.

Answer 9

Balance Occlusion

Question 10

e side towards which the
mandible moves in a lateral excursion.

Answer 10

Working side

Question 11

that side of
the mandible that moves toward the median line in
a lateral excursion. In other words, the side
opposite to the working side.

Answer 11

Balancing Side

Question 12

Thee complete
intercuspation of the opposing teeth independent of
condylar position, sometimes referred to as the best
fit of the teeth regardless of the condylar position.

Answer 12

Maximal Intercuspation

Question 13

Functions of Complete Denture

Answer 13

1. Improve masticatory function.
   2) Minimize harmful nonvertical or lateral forces.
   3) Contribute to the stability of the denture base.
   4) Contribute to the health and preservation of the
   alveolar bone and soft tissue.
   5) Maintenance of the comfort and well-being of the
   patient.

Question 14

Occlusal Schemes in the Complete Denture

Answer 14

• Balance Occlusion
• Nonbalance Occlusion
• Lingualized Occlusal Scheme
• Functionally Generated Occlusal Scheme

Question 15

Objectives of Balance Occlusion

Answer 15

To improve stability, thereby improving function of
the denture.
(2) To reduce resorption and soreness by improving
function and distributing stresses.
(3) To improve oral comfort and well being of the
patient.

Question 16

Factors Affecting Balance Occlusion

Answer 16

1. Condylar Guidance
2. Incisal Guidance
3. Plane of Occlusion
4. Compensating Curbes
5. Cuspal Inclination

Question 17

It is the smooth gliding of the cusp tips along the
cusp inclines of the opposing teeth that provide
balance articulation.
• Cuspal inclines should not be too steep as it can
increase lateral forces.
• It is possible to decrease cuspal height by using
compensating curves.

Answer 17

Cuspal Height/Inclination

Question 18

Multiple uniform contact in centric relation was
sufficient.
• To avoid harmful lateral forces, nonanatomic teeth
were preferred.

Answer 18

Nonbalance Occlusion