ODP EXAM 1 WITH COMPLETE SOLUTIONS GRADED A+
Describe the biofilm matrix and what purpose it serves - Answer-Bacterial biofilm forms a matrix for calculus formation.
Explain how bacteria can overcome the host defense capacity and why everyone doesn't get caries and/or periodontal disease if the...
Describe the biofilm matrix and what purpose it serves - Answer-Bacterial biofilm forms
a matrix for calculus formation.
Explain how bacteria can overcome the host defense capacity and why everyone
doesn't get caries and/or periodontal disease if they have biofilm - Answer-If biofilm is
disrupted, caries and periodontal disease can be controlled.
List disruptions of biofilm: - Answer-Tooth brushing, flossing (removes biofilm and
subgingivally, scaling with hand instruments/ultrasonics indicated for deeper areas.
State where and when biofilm formation begins - Answer-When saliva gets on the teeth,
biofilm begins
Explain 3 mechanisms for bacterial adhesion and biofilm development - Answer-1.
Bacteria can adhear to surfaces (crowded or misaligned teeth, rough surfaces of teeth,
restorations, calculus, tooth surfaces not cleansed by mastication and under contoured
or over changing restorations.
Compare and contrast supra- gingival biofilm development: - Answer-Coronal to gingival
margin
formations begins at the gingival margin and spreads upward to the crown
most frequently on the gingival 1/3rds and proximals
least on palatal surfaces of maxillary (due to tongue)
Compare and contrast sub- gingival biofilm development: - Answer-located between the
gingival margin and periodontal attachment within the sulcus
can invade dentinal and re-infect tissues
more anaerobic and motile organisms that are mainly gram(-)
tooth surface attached biofilm
unattached biofilm
epithelium associated biofilm
Discuss the clinical significance of biofilm - Answer-Supragingival biofilm initiates and
perpetuates gingivitis;
Subgingival biofilm is the main etiologic factor (cause) in periodontitis.
Bacterial biofilm forms a matrix for calculus formation.
, Define a Dental Hygienist: - Answer-is a licensed professional oral health educator and
clinical operator who, as an auxiliary to the dentist, uses preventive, therapeutic, and
educational methods for the control of oral diseases to aid individuals and groups in
attaining and maintaining optimum oral health.
Summarize the development of the dental hygiene Profession: - Answer-a. 1800s:
earliest accounts of prophy angle/pastes by Dr. Alfred C. Fones (father of dental
prophylaxis)
b. 1879: first publication of article advocating polishing of teeth by G.A. Mills (no
directions for procedures included)
c. 1898: spoke before the Washington City Dental Society & Northeastern Dental
Society about the effects of prophylaxes on disease prevention.
d. 1900: Dr. Smith offered 2 exhibits of his patients in his office
e. 1906: Dr. Fones trained his dental assistant (niece) to scale and polish teeth
f. 1907: Irene Newman (niece) performed the first prophylaxis
g. 1913: Dr. Fones started a school for dental hygienists (Forsyth Institute)
h. 1915: 27 women graduated in the first class.
i. 1960: dramatic increase in numbers of 2 year programs
Seven roles that ADHA defines for the dental hygienist & give examples: - Answer-a.
Education: schools, hospitals and long term care facilities, private dental practices and
community-based clinics
b. Assessment: in the practice
c. Diagnosis: in the practice
d. Prevention: in the practice
e. Therapy: in the practice
f. Research: universities, corporations, government agencies
g. Administration: program director in clinical, educational or corporate settings
Discuss the role of the dental hygienist within the dental team: - Answer-a. Data
collection including vital signs, medical/dental history, intra and extra-oral exams,
plaque scores, nutritional counseling.
b. Data organization: record keeping, charting
c. Prioritization of treatment: sequencing, contributes to case presentations
d. Dental hygiene therapy: services may vary according to practice
e. Others: assumes responsibility for services rendered with a respectable level of
competence
List allowable duties of dental hygienists in Texas: - Answer-a. Prophylaxis
b. Xrays
c. Topical anesthesia
d. Fluoride
e. Pit/fissure sealants
f. Root planing
g. Study cast impressions
h. Place perio dressings
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