1. Phase 1 Therapy

what kind of therapy is phase I therapy?

disease control therapy

what kind of therapy is phase II therapy?

corrective surgical therapy

what kind of therapy is phase III therapy?

corrective final restorative therapy

what kind of therapy is phase IV therapy?

professional dental hygiene therapy PDHT (maintenance)

what does phase I therapy consists of?

1. Patient plaque removal education & scaling and root planing.

2. Extraction of non-treatable teeth and caries control.

3. Occlusal therapy (Occlusal adjustment or an occlusal guard)

4. A complete re-examination following Phase I therapy

In order to perform therapy a _________ is ESSENTIAL along with a comprehensive treatment plan.

COMPLETE examination (radiographs, perio chart, photos, diagnostic casts)

what should be done before charting?

observe brushing and flossing techniques

what can we learn from orthodontics?

charging fees based on phases of treatment (length of time it’s going to take + how much it’s going to take)

t/f: Take a comprehensive medical, dental, and social history because knowing your patient is essential for your success!

true

Always observe your patient’ dental hygiene techniques before …?

your intraoral examination

how long should observing pt’s dental hygiene techniques take?

less than a minute

when should u offer advice to a pt regarding their dental hygiene technique?

AFTER completing the exam which will enable them to practice before their phase I therapy

what are periodontal diagnoses?

• periodontal health

• gingivitis

• periodontitis

• peri-implant health

• peri-implant mucositis

• peri-implantitis

what are periodontal classifications?

• periodontal health

  • pristine

  • clinical

• periodontitis

  • stages I-IV

  • grades A/B/C

following an exam, what should the initial treatment plan sequence for your pt be?

1. emergency therapy (pain, infection)

2. medical consult

3. dental consults

4. disease control therapy

5. perio re-evaluation

6. restorative therapy when plaque is controlled

step 4 of the intitial treatment plan sequence for your pt is disease control therapy (beginning of phase I therapy). this consists of…?

1. plaque control instruction review

2. scaling and root planing

what are the etiological risk factors of periodontal disease?

• toxins from bacterial plaque (primary)

• calculus (contains toxins from bacterial plaque)

• systemic diseases/conditions

• local dental factors

• trauma

how are systemic diseases/conditions etiological risk factors?

lowers immune system

how are local dental factors etiological risk factors?

cause plaque retention or the inability to remove dental plaque (malposed teeth, anatomical issues, open contacts, grooves, enamel projections, open contacts, defective restorations, etc.)

how is trauma an etiological risk factor?

– Physical (Scrubbing brushing techniques, other).

–Occlusal (Parafunction: Clenching, Bruxism).

Phase I therapy often includes more than plaque/calculus removal such as…?

1. Plaque Control Instruction, Scaling, Root Planing, Stain and biofilm removal.

2. Caries Control (Provisional restorations).

3. Exodontia as needed (May include ridge preservation depending on the agreed plan.)

4. Occlusal adjustment as needed.

5. Re-evaluation 6-8 (or more) weeks following initiation of therapy.

t/f: it is important to observe and instruct your patient’ dental hygiene techniques P.R.N. at the outset of your Phase I mechanical therapy! Since you taught plaque removal techniques at your examination, this is a review to see what the patient retained from your previous instructions. For all of us, when we are doing our plaque removal techniques, we cannot see the plaque that we are removing, and thus we cannot self-correct our techniques

true

beside SRP, what chemical therapies might also be indicated?

antiseptics, antibiotics

what therapy might be indicated in this case?

systemic antibiotics (chemical therapy) is indicated along with instruction in evidence-based dental plaque removal techniques and thorough scaling and root planing

what is the instrumentation of the crown and root surfaces of the teeth to remove plaque, calculus and stains with scalers and curettes?

scaling

what is a treatment procedure designed to remove cementum or surface dentin that is rough, impregnated with calculus, or contaminated with microorganisms and bacterial toxins (waste products)?

root planing

where is root planing done?

ONLY subgingivally with curettes

what is the objective of SRP?

remove calculus, plaque, and stain from tooth surfaces

in what situations can it be difficult to complete SRP in a single visit?

• pockets of > or = 5 mm

• moderate to heavy calculus deposits

• rough root surfaces

when is root planing done?

during active or maintenance therapy for patients with present or past periodontitis

root planing is for the removal of ________ plaque, calculus, and cementum to assure smooth subgingival root surfaces regardless of the probing depths.

subgingival

the goal of root planing is to acheive a very smooth root surface removing the coronal cementum, _____ microns thick, about the thickness of a hair and apical cementum is _____ microns thick.

16-60

150-200

when there is subgingival calculus, _____- have vacated, and now there is a rough root surface now exposed to oral bacteria

Sharpey’s fibers

t/f: scalers are used subgingivally

false. scalers are NOT used subgingivally

_____ are used for SRP and may be used supra and subgingivally.

curettes

what are the 5 basic instruments used in SRP?

hand scalers are used _____gingivally.

supra

what are hand scalers good for?

• heavy calculus deposits

• particularly useful for just under contact areas because blade is triangular in cross-section and tapers to a sharp point

what shape is H 6/7 hand scaler ?

curved sickle

what shape is 34/35 hand scaler ?

straight sickle

what is the correct angle of the face of the blade to the tooth for efficient SRP?

70 degrees

universal curette

gracey curette

what is the difference between a scaler and curette (in regards to shape)? IMPORTANT

scaler = comes to point at tip

curette = rounded at the toe and back

what is the other name for universal curettes?

the younger-good 7/8

what are the 3 cutting surfaces on universal curettes?

2 lateral edges + toe

universal curettes are useful for,,,>

• adapting to most tooth surfaces

• gingival curettage

what are the 3 blade actions (strokes) of universal curettes?

1. vertical

2. oblique'

3. horizontal

When doing subgingival scaling and root planing, all strokes should be employed.

how many cutting edges are there on a gracey curette?

1 lateral edge + toe

how do you determine the cutting edge of any Gracey Curette?

• hold the instrument vertically with the toe pointing towards you

• When the terminal shank of any Gracey curette is held perpendicular to the floor, then the cutting-edge slopes towards the floor.

When the TERMINAL SHANK of any Gracey curette is maintained parallel to the tooth surface that is being scaled or root planed using any stroke (vertical, oblique, horizontal), then the blade will always be 70° to the tooth. What is the significance of this?

This means that any Gracey may be used to scale or root plane any surface of any tooth as long as the terminal shank can be maintained parallel to the tooth surface being treated

The face of a universal curette is __ degrees to the terminal shank

90º

The face of a Gracey curette is offset by ___ degrees to the terminal shank.

110º

it is important to use 2X2 gauze with hand scaling or root planing. what is the procedure?

1. Dampen it and roll it tight like a cotton roll.

2. Place it in the vestibule facial and lingual of the mandible and facial of the maxilla.

3. Wipe your instrument blade.

4. Blot blood from gingival margin.

5. Provides a dry and comfortable non-skid finger rest.

6. Helps to keep tongue away from work area.

7. Retracts lip and cheek.

8. Provides access and more visibility.

t/f: Hand instrumentation sharpening is vastly important! It must be done prior to using an instrument and when the instrument becomes dull during use.

true

why is it important to sharpen hand instrument BEFORE every procedure?

➢ Much more precise in cutting.

➢ Less pressure against the tooth.

➢ Good control of the instrument with optimum tactile sensitivity (IMPORTANT)

➢ Less chance of the instrument slipping.

➢ Less operator fatigue and frustration.

what are some power instrumentations tools?

• ultrasonics

• air polishing

• implant maintenance (hand vs power vs air polishing)

• NOT FOR ROOT PLANING

is there a signficant difference between using hand or ultraosonic scaling regarding calculus/plaque removal?

no

ultrasonics vs hand instruments:

which is better for accessing furcations and grooves?

ultrasonics

standard ultrasonic and microultrasonic inserts were able to reach and debride the apical plaque border in pockets ranging from __ to __ mm

4-7 mm

what are advantages of ultrasonics?

• improved access

• ease of use

• antimicrobial

• does not cut soft tissue or remove tooth structure

what are advantages of ultrasonics: improved access?

• thin tips, large variety

• more effective in anatomically difficult to access areas

  • concavities, root proximity

  • deep narrow pockets, at CEJ

what are advantages of ultrasonics: ease of use?

• less technically demanding (but more concentration)

• work coronal-apically

• effective w light pressure

• reduced physical fatigue

• no sharpening necessary

what are advantages of ultrasonics: antimicrobial?

• lavage: flushes pocket/endotoxins

• cavitation: disrupts bacterial cell wall

• acoustic microstreaming/turbulence

• can add antimicrobials to lavage

what are advantages of ultrasonics: does not cut soft tissue or remove tooth structure?

• little or no root surface removal

• less soft tissue damage

• no root planing or gingival curettage

what are disadvantages of ultrasonics?

• aerosols: bacteria and viruses

• loss of tactile sensitivity

• pt comfort (sensitivity, water, noise)

• cannot root plane

• changing tips is time consuming (compared to changing hand instruments)

when using ultrasonics, what aerosol management methods are important to use?

• pre-procedural mouth rinse

• HVE

• PPE (face shield, mask)

• retraction

• air filtration

t/f: the combination of ultrasonics and hand instrumentation is more effective than either technique alone

true

t/f: ultrasonics and hand instruments have a similar effect on resolution of inflammation

true

endotoxins are _____ adherents

surface

what are types of ultrasonic scalers?

what is the difference between magnetostrictive vs piezoelectric ultrasonic scalers?

magnetostrictive → oscillating tip

piezoelectric → linear motion tip (use side of tip NOT front/back)

what is the correct adaptation technique when using power instrumentation?

adapt the tip similar to periodontal probewh

what 8-step protocol should be followed for PDHT?