Final Review- Lecture 1

Question 1

Occurs when the process of physiologic wear is accelerated by exogenous or endogenous factors and frequently it is multifactorial and a variable phenomenon:

Answer 1

Pathologic wear

Question 2

Pathologic wear is frequently _____ and can be described as a _____

Answer 2

multifactorial; variable phenomenon

Question 3

Etiologies of wear include:

Answer 3

1. congenital anomalies
2. attrition
3. loss of posterior vertical support
4. abrasion
5. erosion
6. abfraction

Question 4

The excessive wear of just one tooth of extensive restorations, or of the full dentition has been associated to:

Answer 4

1. supraeruption of the opposing teeth
2. inclination of the teeth to a contact that has been eroded
3. reduction of the vertical dimension
4. a contributing factor in TMDs

Question 5

Etiologies of MECHANICAL wear include:

Answer 5

1. loss of posterior support
2. premature occlusal contacts
3. bruxism
4. inadequate brushing technique
5. parafunctional habits

Question 6

Characteristics of MECHANICAL wear:

Answer 6

1. presence of wear facets with a well-defined loss, that coincides on the articulated models
2. the pattern of the wear facets should be analyzed because they tend to occur in predictable places

Question 7

Etiology of CHEMICAL wear includes:

Answer 7

1. chronic vomit
2. sucking of citric fruits
3. consumption of acidic drinks and foods
4. medicines with an acidic pH
5. abuse of certain drugs
6. environmental factors

Question 8

Characteristics of chemical wear:

Answer 8

1. presence of amalgam “islands”
2. presence of grooves and fossae
3. hypersensitivity
4. no stains or changes in color
5. wear facets without defined perimeter

Question 9

It is assumed that the extensive wear of the dentition results in:

Answer 9

A reduced VDO

Question 10

T/F: There is no evidence that proves that proves the concept “excessive wear leads to reduced VDO”

Answer 10

True

Question 11

Some authors coincide that cases in which there is extensive wear of the dentition, the wear is compensated by:

Answer 11

Overeruption

Question 12

Evaluation of the vertical dimension includes:

Answer 12

1. posterior support
2. history of the wear present
3. phonetic evaluation
4. interocclusal distance
5. facial appearance
6. perception of the patient

Question 13

1. etiology of the occlusal wear
2. motivation of the patient to preserve his teeth
3. ability of the patient to make a financial and time commitment to the proposed treatment
4. periodontial health
5. severity of the wear present
6. number and position of remaining teeth
7. patient expectations
8. patients willingness to wear occlusal guard and work on control of parafunctional activities during the day
9. analysis of the diagnostic tools

Answer 13

Important determinants in the treatment of patients with excessive occlusal wear

Question 14

Treatment options for patients with excessive occlusal wear:

Answer 14

1. no active interention
2. prevention of loss of additional dental structure
3. restoration to revert the loss of dental structure

Question 15

Restoration methods for patients with excessive occlusal wear:

Answer 15

1. extraction followed by replacement with CDs, RPDs or overdentures
2. restorations using amalgam, composite, resins, onlays, etc.
3. restorations using fixed or removable prosthesis, implants, or a combination

Question 16

_____ should be used when a new vertical dimension is established

Answer 16

good clinical criteria

Question 17

The changes in vertical dimension should be evaluated with _____ prior to starting any irreversible treatment

Answer 17

occlusal splint

Question 18

Symptoms of intolerance to an increased VDO:

Answer 18

1. clenching
2. muscular fatigue
3. pain in the teeth/muscles/articulations
4. headaches
5. intrusion of teeth
6. fracture of restorations
7. occlusal instability

Question 19

When can the provisional restorations be made?

Answer 19

After the patient accepts and is using the occlusal guard

Question 20

When can the patients function, esthetics and oral hygiene be evaluated?

Answer 20

After the patient accepts and wears the occlusal guard and the provisional is made

Question 21

The final restorations in a patient with history of excessive occlusal wear should present elements like:

Answer 21

shallow cusps and a reduced occlusal surface in the BL aspect

Question 22

By the final restorations having shallow cusps and a reduced occlusal surface in the BL aspect in patient with a history of excessive occlusal wear, this:

Answer 22

Helps reduce the destructive forces directed to the restored teeth

Question 23

What type of occlusal guard is preferable to prevent nocturnal parafunctional habits, wear or fracture of the restorations?

Answer 23

Rigid

Question 24

In patients with extensive fixed restorations, with an inadequate oral hygiene and high indices of plaque, _____ should be used once a day and applied with a tray.

Answer 24

Neutral sodium fluoride

Question 25

A routine of _____ should be established in patient receiving treatment following history of excessive occlusal wear

Answer 25

Periodic evaluations

Question 26

Describe the recall schedule for patients revceiving treatment following history of excessive occlusal wear:

Answer 26

Every three months year 1. Every six months following. In combination with periodic, periodontal treatment

Question 27

Digital dentistry allows for improvements in: