Miscellanaeous Flashcards
What systemic disease causes thickening of the cementum
Pagets Disease
What type of cementum is secreted by cementoblasts
Type I - 95%
Type III - 5%
Gingivitis occurs after how many days?
10 - 21 days (Loe)
How rapidly does gingivitis resolve with OH
7 days (1 week) – shows that gingivitis is reversible (Loe)
What is a surrogate marker for periodontal disease?
Clinical Attachment Loss (CAL)
What is a true marker for periodontal disease?
Tooth loss
What is the development order of the crystals in calculus?
a) Hydroxyapatite
b) Octacalcium phosphate
c) Magnesium whitlockite
d) Brushite
What is the sensitivity to detecting calculus on a radiograph?
Low - 42%
Smokers risk for cancers increases by how many times?
x7 increase
Alcoholics risk for cancers increases by how many times?
x6 increase
Cancer increase in alcoholics who smoke (how many x)
x38 increase
What antibiotic do you prescribe after SRP to smokers?
200 mg metronidazole for 7 days, still reduced effect v non smokers
What is the prevalence of palatogingival grooves?
6% Laterals
3% Centrals
What 3 things to include in a periodontal diagnosis?
- Staging with complexity
- Grade
- Extent
What is mild Clinical Attachment Loss?
1 - 2 mm
What is Moderate Clinical Attachment Loss?
3 - 4 mm
What is Severe Clinical Attachment Loss?
above 5 mm
What is the etiology of ANUG?
Bacterial invasion (usually gram (-) spirochetes) in those who are immunocompromised
What is CRP, what does it do
A. CRP is a typical acute-phase protein that opsonizes bacteria and facilitates complement fixation. This all helps in phagocytosis of bacteria
B. Synthesized in liver
What are the 3 functions of leukocytes?
- Chemotaxis
- Phagocytosis
- Antigen processing and presentation
What is the difference between a Monocyte and Macrophage?
Macrophages are monocytes in tissue
Monocytes are in the blood
What is transendothelial migration?
Movement of leukocytes from blood stream into local tissues at inflammation site
Stages of wound healing
A. 1-2 days: clot / Inflammation (epithelial cells migrate under clot) you have PNMs
B. 3-4 days: Proliferation (fibroblasts)
C. 7-21 days: Granulation (collagen peak)
D. 1 month (21-28 days) : Remodeling/ Bone formation
E. 6 months: Maturation
What is the ledge and wedge technique?
A. Internal bevel gingivectomy not a true gingivectomy because it is not confine to the gingiva… partial thickness flap procedure.
B. Technique allows reflection of conventional flap and access to bone if needed
- perpendicular inverse incision
- perpendicular external
How does Open Flap Debridement change Probing Depth?
You can expect 2 mm recession and
1.4 mm gain in CAL
- Reduced PD
- Some gain CAL
- Heal long Junctional Epithelium (JE)
Root trunk length in Maxillary Molar?
Maxillary:
a. Short= 3mm,
b. Medium= 4mm,
c. Long= 5+mm
Root trunk length in Mandibular Molars?
a. Short= 2mm,
b. Medium= 3mm
c. Long= 4+mm
Why is root truck length important in furcation involvement?
Longer root trunk means more attachment has to be lost before furcation invasion.
How do you diagnose a furcation?
How accurate is the furcation arrow in detecting actually furcation invasions in maxillary molars?
Radiograph and Probe
a. Probe: Straight probe for vertical depth and curved probe for horizontal
b. Best way is BONE SOUNDING
Furcation arrow–> sensitivity was only 39%,
