DH 200 Exam 2

What does a standard intraoral fulcrum provied? Can advanced fulcrum replace standard fulcrums?

Stability for DH hand, decreased llikely hood for injury to each other, best leverage. No.

What fulcrum provides least amount of strain on DH hand? Can this style be used to correct advanced? Will this form cause poor problems if used incorrecty?

Standard intraoral fulcrum no. yes.

_____ working ends to make hortizontal strokes on the mesial and distal surface.

Switch

periodontal file design technique useage adaption- Face?

Use: to prepare calculus deposite BEFORE removal with another inst. Crush and roughen hevy deposit. Has series of cutting edges lined up on a base. Shank is rigid. face- is flat against the calc deposit.

For mesail 11 use ___ strokes? Fot mesail 12 use ___ strokes?

Vertical. HOrtizontal.

For distal surface the g13 used ___strokes? For Distal g14 use____ strokes?

Vertical. Hortizontal.

The______________ root commonly has a deep depression What curette to use? What direction of pressure?

__ palatal____________ Mesial curette. Use the index finger of your nondominant hand to apply pressure against the shank, thus concentrating pressure with the cutting edge against the lingual surface of the first molar.

Opposite Arch Intraoral Fulcrum

advanced fulcrum used to improve access to deep pockets and to facilitate parallelism to proximal root surfaces It is accomplished by resting the ring finger on the opposite arch from the treatment area (e.g., resting on the mandibular arch to instrument maxillary teeth)

When to Use an Advanced Extraoral Fulcrum

deep periodontal pocket, especially when instrumenting the maxillary posterior teeth. -proper adaption -complete coverage with inst stokes deep deep pockets

Basic ______ fulcruming techniques involve resting the fingers or palm of the hand against the patient's chin or cheeks and underlying bone of the mandible.

extraoral

An ________ fulcrum usually is effective in most treatment areas of the mouth. One exception is maxillary posterior teeth with deep periodontal pockets.

intraoral

Finger on finger

is accomplished by resting the ring finger of the dominant hand on a finger of the nondominant hand. •This technique allows the clinician to fulcrum in line with the long axis of the tooth to improve parallelism of the lower shank to the tooth surface. •The nondominant index finger provides a stable rest for the clinician's dominant hand and provides improved access to deep periodontal pockets. •Figures 20-15 to 20-17 depict a finger-on-finger fulcrum for the maxillary right posterior teeth, maxillary left posterior teeth, and mandibular left posterior teeth.

The ______________ has the deepest concavity in the entire dentition. how adapt?

maxillary first premolar Rotate the toe-third of the cutting edge toward the root surface to adapt to the concavity. Use the mesial curet to debride the mesial concavity.

how are files limted?

tactile and to enamel surface or outer surface of calc deposits.

should you master standard intraoral fulcrum before doing the advanced fulcrum?

yes

Diamond coated instument Design use strokes

-No Cutting Edges. Diamond-coated instruments -Easy Insertion between the roots of bifurcated and trifurcated teeth. -Uses. Diamond instruments are used like an emery board to remove small, embedded remnants of calculus that remain on the root surface after instrumentation. Finishing instrument. class 3 n 4 furication. -strokes: multi directional, light pressure, light strokes,

Minature Lagature design Shank? Pocket depths? What size end? Acess for____ narrow pockets.

-longer lower shank. The extended shank allows 4+mm for deep pockets--smaller working end. allows easier access for narrow pockets."

Two point contact

1. adaption of the working end to calculus. 2. resting the lower shank against the tooth.

Miniature gracy design Shank? __% Diff of ____ compared to reg gracy.

1.Extended shank- that is extended by 3mm, there for gain acess into pockets 4mm + 2. Thinner working end by 10% (The thinner working-end facilitates insertion beneath the gingival margin and reduces tissue distention away from the root surface. ) 3.The miniature working-end is half the length of a standard Gracey curet. The working-end does not curve up.3 Compare this design to that of the Vision Curvette discussed later in this chapter.

posterior application of cutting edges?

2 double ended files are required to instrument posterior teeth

Maxillary first premolar has how many roots? Distance from CEJ? Where are the furications?

2. 7mm. Mid-distal Mid -mesial

Mandibular molar has how many roots? Where are they located? How many mm from cej?

2. Mid-facial (3) and mid-lingual(4).

Maxillary molar How many roots?

3 roots Mid-facial 4 mm Mesial toward lingual 3 mm Mid-distal 5 mm

What strokes for root inst?

A combination of vertical, horizontal, and oblique strokes is used for root instrumentation.

Cross Arch Intraoral Fulcrum

Advanced.resting the ring finger on a tooth on the opposite side of the arch from the teeth being instrumented (Fig. 20-13)—for example, resting on the left side of the mandible to instrument a mandibular right molar. Cross arch fulcrums are most useful when using horizontal strokes in proximal root concavities with the curet in either a toe-up or toe-down position.

What are some advantage and disadvantage or extraoral fulcrums?

Advantage: easier acess to 2nd molar, 3rd molars, deep pockets, improves parellism , neutral wrist position, Disadvantage: require a greater degree of muscle coordination and instrument skill, increase in instrument stick, reduce tactile infomation to the fingers (b/c your farther back on the inst), not tolllerated with pt's with TMJ.

Modified intraoral fulcrum?

An altered point of contact b/w Middle and ring fingers in the grasp . Ring finger doesnt touch the middle.

Facial and lingual contact with file? posterior.

Benith Gm, use mirror with indirect vision for lingual surface.

When working on the maxillary left posterior sextants, the patient's chin and mandible are cupped with the palm of the clinician's hand in the "_____-_____" technique

Chin-cup technique

When should you use advanced fulcrums? Is it selective?

Deep perio pocket, narrow w/ limited access. Yes.

What are the instrument sequence for debriding the root? What ends mesial or Distal do you use in the furication? Is the toe up or down Mandible? What type of strokes?

Distal curett, the mesial curette. Continue sequence on the roots, Use the mesial curette IN the furication. toe down. Hortizontal.

Miniature- Langer curette USE? how many teeth? How to use?

Each curet is limited to use only on certain teeth and certain tooth surfaces. -For this reason, several Langer curets are required to instrument the entire mouth -Used like any other universal curette. horizontal strokes.

Maxillary anterior fulcrum Ling and Facial? Strokes?

Extra oral fulcrum. Verical strokes.

The (a) distal furcation entrance is located near the midline of the tooth and, therefore, can be instrumented from both the ___and _____aspect

Facial and Lingual aspects.

What is your grasp with extraoral fulcrum

Farther away from inst handel

For this advanced technique, the index finger of the nondominant hand is placed against the instrument shank. For this technique, the clinician applies pressure against the shank of the instrument. The index finger of the nondominant hand moves with the instrument shank throughout a short, controlled instrumentation stroke

Finger assisted

What is the diff from fulcrum and advances fulcrum?

Fulcrum: finger rest to stabilize. Advance fulcrum: variation of conventional fulcrum to gain acess to root surface within perio-pockets. There are advanced intra/extraoral fulcrums.

What kind of stokes for removing deposits from root concavities and depressions?

Horizontal strokes are needed.

Anterior with mesial concavities what kind of stroke?

Hortizontal

What types of stokes for deposit removal from root concavities and drepressions?

Hortizontal

Distal & mesial root concavites what kind of strokes? short or long strokes on the mesial concavites?

Hortizontal. Short.

The entrance to the mesial furcation is located toward the _______aspect, rather than being located at the midline of the mesial surface. What kind of curette to use?

Lingual . Mesial.

Orientation of toe up and toe down?

MAxilla-up Madible - down

Horizontal strokes are helpful when instrumenting proximal root concavities on the____ and _____ surfaces of roots.

Mesial and distal surface of roots

The correct working end to make a vertical stroke is on the ______. With a gracy 12. Toe orientation? What about with the gracy 11?

Mesial surface. Toe down. Gracy 11 cant work hortizontally.

a minimun of ____ double ended files is require to instrument the facial and lingual of anterior teeth.

One

When working on the maxillary right posterior sextants, the clinician rests the fingers against the patient's chin. The "_____-____ _____" technique involves ? Fingers straight or bowed? Strokes?

Palm facing out. involves resting the front surfaces of the middle, ring, and little fingers against the skin and underlying bone of the mandibular arch . stright. Verticacl and oblique strokes.