Readings Flashcards
There is impaired masticatory ability when a patient has less than _ teeth
20
How many pairs of occluding teeth are there in SDA
10
Adult patients have adequate functionality when the most posterior teeth are
2nd premolars
Important considerations when treatment planning are _ to establish a prognosis
- Chief complaint
- Functional and psychological needs
- Relevant medical and dental history
- Ability for patient to maintain the treatment
Differences in the elderly population we see today are
- Keeping teeth
- Living longer
- Living with chronic disease
Dental health risk factors seen in elderly populations are
- Restorative trauma to teeth
- Recession
- Medication induced xerostomia
- Diet= carb ingestions
- Decrease oral hygiene (dexterity)
Over a 8 year period what is the 1st most common complications of an FDP
caries
Reasons for caries around FDPs are
- Marginal gaps
- Difficult cleaning access
RPD patients have a higher probability of caries on what teeth
- abutment teeth
- any teeth in contact with the RPD
- Teeth with gingival recession
Caries susceptibilit (increases/decreases) when the abutment tooth is crowned
decreases
What are the three main mechanisms of fluoride
- Inhibiting remineralization
- Promoting remineralization
- Inhibiting bacterial metabolism (at high conc.)
Inadequate salivary flow is defined as _ mL/min or less
0.7
In prosth patients with gingival recession a fluoride varnish is recommended how many times annually
3 times
Chlorhexidine due to staining and impact on taste should be limited to
7 consetutive days 1 x per month
Chlorhexidine recommended dose is .
10 mL of a 0.12% rinse for one minute 1 hr before brushing
How often should paitents chew xylitol gum at high caries risk
15 min with 7-10g/day
What is CPP-ACP
Casein phosphopeptide-amorphous calcium phosphate (MI paste)
Patients with Xerostomia can benefit from
- low sugar diet
- frequent water sipping (with 2 teaspoons of baking soda in 8 ox water)–> neutralizes acid in the mouth
Predictors for abutment tooth longevity are
- C:R ratio
- Mobility
- Alveolar bone support
- Root configuration
- Angulation
- Opposing occlusion
- Pulp condition
- Presence of endo treatment
Periodontally compromised dentition is defined as
-relationship of the tooth with alveolar bone compared with the portion not withinthe alveolar bone
Fulcrum of the abutment tooth is a class _ lever
I
T/F Most roots are conical
t
How can the CRR be improved
Prepping the abutment tooth (decreases the crown height –> decrease in C:R ratio)
(T/F) Increased crown mobility is associtated with increased CRR and increased mobiliy is found in teeth with large CRR
1= T 2=F
What are the four different prognostic factors when evaluating a tooth
- Perio
- Endo
- Implant
- Prosth
The different aspects of perio prognostic factors are
- Attachment loos
- Probing depths
- Furcation involvement
The major prosth prognostic factor is
-Amount of coronal tooth structure remaining
Endo prognostic factors say that survival rates in FDP abutments with RCT are (more/less) likely to survive
less
As long as the planned restoration is a _ in an otherwise intact arch a questionable tooth might be accepted
single crown
Most complications with pins are… second is
1st= loose pin/inadequate penetration of the pin in the channel 2nd= perforation or pulp/periodontium
What is the best core build up material under conventionally cemented crowns
amalgam
Main disadvantage of amalgam is what
hg content
The liberation of metalic ions from amalgam is inhibitied by what
the crown cement
Unless the patient suffers from _ the metalic ions from amalgam will not likely be an issue
lichen planus
What is wet bonding
is it when the dentin is left slightly damp after etching and rinsing to encourage better primer penetration
The crown margin should embrace - mm of sound tooth structure cervically
1-2 mm (extension of the margin like this= ferrule effect)
Describe the risk of ceramic fracture with GI
Hydrophilic resin (swelling occurs)
How can the seal of a RD be improved
OraSeal Putty
Stringent (decrease bleeding
Electrosurgery (reduce the gingival margin)
An Apex locator will read what if a pin has perforated the periodontium
beyond the apex
Which are easier to manage pulpal or periodontal perforations
pulpal
(T/F) Ferrule lowers the impost of the post and core system, luting agents of endo treated teeth
t
The need for endo after indirect restorations is higher in single crown or FDP
FDP
Reduction of tooth stiffness in endo teeth largely due to
access
What is the most common post and core failure
loosening of the post and tooth fracture
Threaded posts are the most retentive followed by…
cemented and parallel sided
What posts produce the least root stress? Most likely to cause root fracture?
cemented… threaded
As the number of proximal contacts increases the survival rate of RCT with crowns (increases/decreases)
increases
Parallel sided serrated posts (increased/decreased) RCT tooth longevity
increased
