Clinic Theory Flashcards
Carpal tunnel syndrome
Painful disorder of the wrist/hand
Caused by compression of median nerve in the wrist
Carpal tunnel syndrome is caused by repeated
Bending hand up and down, side to side
Pinch grabbing
No resting
Neutral seated position
Feet flat on floor
Evenly distributed weight
Hips slightly higher than knees
Butt all the way back in chair
Seat back 1 inch higher than front
Patient head position for maxillary arch
Chin up; nose and chin are level
Patient head position mandibular arch
Chin down; chin lower than nose
Clock position to the front of patient for RH
8
Clock position to the side of patient RH
9
Clock position to the corner of headrest RH
10-11
When do we use standing position
When access is difficult or pt can not be supine
What is correct standing position
Shoulders relaxed, elbow of dominant hand at waist level and torso is neutral
3 parts of periodontal instrument
Handle
Shank
Working end
Simple shank
Appears to be straight
Complex shank
Side to side bends
Simple shank is used on what teeth
Anterior teeth
Complex shank is used on what teeth
Posterior
Front to back complex bends are used on what surfaces
Buccal and lingual root surfaces
Side to side complex bends are used on what surfaces
Medial and distal root surfaces
Functional shank is the portion of the shank that allows
The working end to be adapted to the tooth surface
Lower shank is also known as
Terminal shank
The terminal shank or lower shank is nearest what?
The working end of the instrument
Simple shank with short functional shank is used where
Supragingival anterior
Simple long functional shank is used where
Subgingival anteriors
Complex shank with short functional shank is used where
Supragingival posteriors
Complex shank with long functional shank
Subginigval posteriors
Extended lower shank reaches
Middle and apical third of root surfaces
2 variations of double ended instruments
Paired and unpaired
Which instrument design in cross section are used supra only
Triangular (sickles)
Which instrument design in cross section can be used supra or sub
Toe or semi circular in cross section (curets)
Does the heel 1/3rd of the working end ever adapt to the tooth
No
3 types of mirrors
Front surface, concave, plane (flat)
Reflection on front and is most common mirror used
It is clear with no distortion
Front surface mirror
Results in a magnified image which leads to distortion in what mirrror type
Concave
Produces ghost image
Plane mirror
Texturing of handle is also known as
Knurling
Free gingiva surrounds
Tooth neck
Tissue that forms the base of the sulcus
Junctional epithelium
Healthy probe depth (mm)
1-3mm
The tooth must be attached by what 4 things
Junctional epithelium
Fibers of gingiva
Periodontal ligament fibers
Alveolar bone (bony socket)
When the working ends are aligned with the long axis of the handle the instrument is said to be
Balanced
CAL stands for
Clinical attachment level
CAL is recorded to estimate what
Tooth stability and loss of bone support
If CAL = probing depth the margin is
Normal
If margin is ADDED to probing depth reading then the margin is
Below the CEJ (recession)
If the margin is subtracted from the probing depth reading the margin is
Above CEJ (inflammation)
