Exam 2 CH 41 Nonsurgical Therapy Flashcards
Term; LPS complex found in cell wall of many gram-negative microorganisms; contained superficially within periodontally involved cementum
Endotoxin
Term; Dental biofilm removal and control, supragingival and subgingival scaling, root planning, and adjunctive treatments such as the use of chemotherapy; the basic objectives are to restore periodontal health; arrest or slow the progression of early periodontal disease; for more advanced disease, to prepare the tissues for more complex periodontal therapy
Nonsurgical periodontal therapy
What is the focus of treatment?
- Elimination of the contributing factors of the infection
- the primary sources of infection are periodontal pathogenic microorganisms in the biofilm
Term; The therapeutic washing of the pocket and root surface to remove endotoxins and loose debris?
Lavage
Term; Ultrasonic scaling device that generates a magnetic field and produces tip vibrations by the expansion and contraction of a metal stack or rod?
Magnetostrictive
Term; Ultrasonic scaling device activated by dimensional changes in crystals housed in the handpiece?
Piezoelectric
Term; Type of mechanical power-driven scaler that functions from energy delivered by a vibrating working tip in the frequency of 2,500-7,000 cps; driven by compressed air, the handpiece connects directly to a conventional rotary handpiece tubing
Sonic Scaler
Term; Magnetostrictive inserts made of flat metal strips stacked, or sandwiched, together; metal in stack acts like an antenna to pick up magnetic field and cause vibration?
Stack
Term; Action created by the formation and collapse of bubbles in the water by high frequency sound waves surrounding an ultrasonic tip
Cavitation
What is the purpose of the O-ring?
Holds tip in place and seals the water
What is the expected outcome of Nonsurgical Therapy?
Interrupt or stop the progress of disease: reduce formation of dental biofilm
What are the changes in bacterial flora after NSP?
Subgingival bacteria flora is changed from primarily anaerobic, gram-negative, motile forms to aerobic, gram-positive, nonmotile.
Water spray does what in ultrasonic scaling?
Keeps the water tip cool.
What does oscillation do in ultrasonic scaling?
Oscillation of tip; turbulence=disruptive effect
Term; A minimally invasive diagnostic procedure used in medicine to examine inaccessible tissues by inserting a fiber-optic tube into the body?
Endoscopy
Term; Treatment by means of chemical or pharmaceutical agents?
Chemotherapy
Term; Tubular instrument placed in a cavity to introduce or withdraw fluid?
Cannula
Term; Available for absorption by the body?
Bioabsorbable
Term; Susceptible of degradation by biological processes, as by bacterial or other enzymatic action
Biodegradable
Term; Area on tooth where instrumentation is confined; area where calculus and altered cementum are located and treatment is required?
Instrumentation zone
Term; Use of specific chemical or pharmaceutical agents for the control or destruction of microorganisms, either systemically or at specific sites?
Antimicrobial therapy
The system of scaling in two long appointments completed within a 24 hour period under anesthesia with assistance of a chair side assistant?
Full mouth disinfection
Which sterilization method should be avoided for ultrasonic tips?
Moist heat and chemical vapor
What is the main action of the ultrasonic and sonic scaler?
Mechanical Action
Without daily biofilm control the microorganisms can return to pretreatment levels in how many days?
42
What is the most significant measure of success in periodontal debridement?
Tissue response
Tissue response is manifested by clinical features commonly referred to as the?
Endpoints of therapy
Endotoxins are embedded in what areas?
Cemental surfaces and superficial biofilm
Which ultrasonic scaler uses stacks of metal strips, tips move in an elliptical pattern and has a frequency of 18,000 to 45,000 cps?
Magnetostrictive
Cps stands for?
Cycles per second
Which ultrasonic scaler uses ceramic rods, tips move in a linear pattern(forward and backward), only lateral surface of tips are active and has a frequency of 18,000 to 50,000 cps?
Piezoelectric
Minocycline HCL 1mg (Arestin)
- Sustained release 14 days
- Doesn’t block subgingival fluid
- Used for an adjunct to SRP
- Probing depth at least 5mm
- Don’t floss for 10 days at treatment site
- Avoid eating hard, crunchy and sticky foods for 1 week
- Contraindications; Sensitivity to tetracycline, pregnant women, and active periodontal abscess
Doxycycline Hyclate (Atridox)
- Liquid form
- Solidifies on contact with sulcus fluid
- Control release for 7 days
- Used for an adjunct to SRP
- Probing depth at least 5mm
- Can cause abscess
- Benefits; reduce probing depth, destruction of pathogenic organisms
- Contraindications; Sensitivity to tetracycline, pregnant women
Perio Chip (Chlorhexidine)
- No potential for bacterial res.
- Blocks gingival fluid
- 7-10 days stays in
- Kills bacteria
