PERIO LECTURE NOTES Flashcards
ATTACHEMNT loss precedes bone loss by
6-8 MONTHS
true or false
CAL is measured clinically occurs before radiographic evidence of bone loss is observed
true
study of Sri Lakan tea laborers showed what
the study showed that wihtout any oral hygiene and no dental care, there is 0.2 mm of bone per year lost on the facial and about 0.3 mm of bone per year lost on the proximal surface when periodontal disease goes untreated
MECHANISMS OF BONE DESTRUCTION
factors the cause bone resorption are derived form bacterail palque and the host. biofilm induce the differentiation of bone progentitos cell into osteoclast. the host produces PROSTAGLANDINS
interleukin 1
interleukin -beta
interleukin 6
tumor necrosis factor alpha
they contribute to induce bone resorption
. Buttressing bone formation is a;
A. congenital abnormality
B. occurs endosteally
C. occurs periosteally
D. due to trauma from occlusion
D. due to trauma from occlusion
.In response to traumatic occlusal forces ,alveolar bone has
A. Osteoblasts in areas of tension and osteoclasts in areas of pressure
B. Osteoclasts in areas of tension and osteoblasts in areas of pressure
C. Osteoid in areas of tension and osteoblasts in areas of pressure
D. Afunctional atrophy
Osteoblasts in areas of tension and osteoclasts in areas of pressure
Intrabony defects are;
A. one walled defects
B. two walled defects
C. three walled defects
D. combination of above
C. three walled defects
list systemic disorders that can lead to bone destruction and hence bone loss?
osteoporosis
hyperparathyroidism
leukemia
it is the most common pattern of bon loss in periodntal disease
horizontal bone loss.
often linked with suprabony pcokets
vertical or angular bone defect
Occur in an angular or oblique direction leaving a hollowed-out trough in the bone alongside the root.
Base of the defect is located apical to the surrounding bone.
Usually associated with an infrabony pocket
Surgical exposure is the only sure way to determine the presence and configuration of vertical osseous defects
most common osseous defect
interdental osseous crater; 2 wall defect
words sued to describe osseous topogrpahy
fenestrations
dehescene
dehiscence is often found onstly on
mandibular canines
fenestrations is found mostly on
maxillary first molars
Disuse atrophy
Nonfunction and hypo function of teeth (hypo occlusion).
Microscopic appearance = PDL fibers are arraigned in a loose functional arrangement. No principal fibers are demonstrable. Only loosely organized connective tissue present.
Hyper function
functional adaptation in which additional structural elements are formed on cementum and bone to withstand added forces. See a thickened Lamina dura, buttressing bone formation, osteosclerosis and cementum spurs. Periodontal ligament fiber bundles become thickened and functionally orientated.
PERIODONTAL OCCLUSAL TRAUMA
degenerative lesion (pathology) that develops when occlusal or other forces exceed the adaptive capacity of the supporting periodontal tissues.
Circulatory changes produced in supporting tissues Breakdown of periodontal ligament fibers Bone Resorption Widening of periodontal ligament space Mobility of teeth
what is tooth mobility
a measure of horizontal or vertical displacement created by the examiners force.
class I mobility
movement less than 1 mm
class II
movement with 1-2mm
class II
movemnt greater than 2mm and/or depressibility if tooth. (moves in axial direction)
- Which of the following is the antibiotic of choice to treat a periodontal abscess?
A. Metronidazole- for aggressive periodontitis
B. Acyclovir- Used for Acute herpetic gingivostomatitis 3 days of symptoms
C. Tetracycline
D. Doxycycline- for Moderate/chronic periodontitis
E. Augmentin (from slides - says first drug of choice
Answer: Augmentin (from slides - says first drug of choice)
- Your patient has a history of bulimia and GERD. WHich of the following types of “wasting
teeth “presentations is most likely to be observed clinically with your patient?
A. Attrition- occlusal wear due to functional contact with opposing teeth. Habits
B. Abfraction- abnormal occlusal loading due to bruxism causing tooth flexure and
microfracturing in the CERVICAL AREA
C. Abrasion
D. Erosion occurs in acidic environment
E. None of the above
Answer:Erosion occurs in acidic environment
Intrinsic factors for erosion include GERD, bulimia, chronic alcoholism, and pregnancy - SA
n order to ensure the patient has profound anesthesia to effectively scale, root plane and
debride #3, which of the following nerves will require local anesthesia
Answer:PSA, MSA, GP
4- The angle used to insert a Gracey curette into a periodontal pocket for scaling is usually A. 150-180 degrees B. 45-90 degrees C. 0-40 degrees D. 95-120 degrees E. None of the above
Answer: 0- 40 degrees (CUZ INSERTION)
Curettes are inserted into the periodontal pocket toe first. The curette is inserted at a 0 degree
angle and then the working angle is established.-SA
- Which of the following is caused by an autoimmune destruction of desmosomes leading to
skin and mucosal ulcers that persist for weeks or months?
A. Pemphigus
B. Pemphigoid- autoimmune to the structural components of the basement membrane
C. Aphthous ulcersD. Erythema multiforme-drug induced, hemorrhagic crusting at vermillion border
E. Lupus erythematosus- butterfly malar rash, conjunction sjogrens syndrome
Answer:Pemphigus
- A sharp curette reflects light. A dull curette burnishes calculus on a root surface.
A. The first statement is false. The second statement is true
B. The first statement is false. The second statement is false
C. The first statement is true. The second statement is true.
D. The first statement is true. The second statement is false.
Answer: FALSE, TRUE
- Comprehensive periodontal treatment planning is always done in phase 1
(nonsurgical/disease control) of the periodontal treatment plan. Periodontal maintenance is the
same as prophylaxis.
E. The first statement is false. The second statement is true
F. The first statement is false. The second statement is false
G. The first statement is true. The second statement is true.
H. The first statement is true. The second statement is false.
Answer: False, False
False is right Periodontal maintenance is not the same as prophylaxis DS
- What is the biggest problem associated with periodontal maintenance that contributes to
recurrence of disease and tooth loss in the long-term?
A. Cost
B. Aging
C. Distance
D. Philosophical beliefs
E. Compliance
Answer: E - Compliance
- You suspect your patient has primary occlusal trauma because you not areas (miswritten on
exam) of widened PDL on the FMX. How would you describe the cervical lesions depicted?
A. Erosion
B. Abrasion
C. Abfraction
D. Attrition
E. None of the above
Answer:Abfraction
- Which of the following oral hygiene methods or products, when applied properly and used
exclusively, could still result in a persistently high plaque score?
A. C- flossing method
B. Motorized (powered) toothbrush
C. Bass method of tooth brushing
D. waterpik/waterfloss
Answer:waterpik/waterfloss
- You are doing a comprehensive periodontal examination. Teeth #18-20 have 5-6 mm
periodontal probing depths. What statement BEST describes how probing depth is measured
clinically (i.e. What are your landmarks for measuring probing depth)?
A. Measured from the free gingival margin to the mucogingival junction
B. Measured from the CEJ to the base of the probleable crevice
C. Measured from epithelial attachment to the alveolar crest
D. Measured from CEJ to alveolar crest
Answer: Measured from free gingival margin to base of probalance crevice
- Two patients of the same age both have 25% periodontal bone loss, but Patient A has
abundant calculus deposits while Patient B has little plaque or calculus. Which patient has the
better periodontal prognosis? Patient A or Patient B?
A. Patient B
B. Patient A
Answer: Patient B
Wish all these questions were like this lol
13. Which of the following conditions demonstrate a malar rash and often occurs along with Sjogren’s syndrome? A. Aphthous ulcers B. Lupus erythematosus C. Pemphigus D. Pemphigoid E. Erythema multiforme
Answer: Lupus erythematosus
14. The following characteristics describes which periodontal instrument: Designed for area specific usage, face of the blade is offset at 70 degrees to the lower shank, has 2 cutting edges but only 1 is used. A. Gracey B. file C. chisel D. Universal curette E. None of the above
gracey
15. The Gracey curettes are characterized by which of the following: SELECT ALL THAT APPLY—---------- see ppt slide above A. Site specific usage, rounded tip B. Rounded tip C. Pointed tip D. 2 functional cutting edges
: Site specific usage, rounded tip (CHECK- should be correct tho)
- Which of the following is/are accurate regarding Re-Evaluation?
A. Re-evaluation is a comprehensive periodontal evaluation
B. Re-evaluation is like a post-op visit, no need to record probing depths
C. Re-evaluation is the final procedure performed in phase I
D. Re-evaluation is ideally performed 4-6 weeks following SRP
Answer: Re-evaluation is a comprehensive periodontal evaluation agreed
Re-evaluation is the final procedure performed in phase I agreed
Re-evaluation is ideally performed 4-6 weeks following SRPnot sure about this
one -SA, this is correct -BJ → should be done 4-12 after SCRP - powerpoints
- Which of the following is characteristic of the initial lesion in the pathogenesis of periodontal
disease?
A. Clinical signs of gingival redness and edema are evident -early lesion
B. 60-70% collagen destruction occurs within lamina propria-early lesion (T lymphocytes) -
early lesion
C. C. Cellular infiltrate in the lamina propria is composed mainly of neutrophils
(PMNs)
D. Breakdown of collagen fiber attachment to the root
Answer: C. Cellular infiltrate in the lamina propria is composed mainly of neutrophils (PMNs)
choices A & B are early lesions
- Which of the following chemotherapeutic products DOES NOT kill bacteria?
A. Actisite (tetracycline)-nonresorbable tetracycline fiber
B. Atridox (doxycycline in syringe gel)
C. Arestin (minocycline powder - syringe into pocket)
D. Periostat (doxycycline
A:Periostat (doxycycline) -candy- bacteriostatic not bacteriocidal Ac Periochip (Chlorhexidine chip, resorable) does kill bacteria
- Which phase of treatment is also known as Bacterial Control or Disease Control phase?
a. Phase IV-periodontal maintenance
b. Phase II-surgical therapy
c. Phase I-simple operative restorative
d. Preliminary phase
e. Phase III -definitive treatments does NOT include simple operative/restorative
Answer: Phase I-simple operative restorative