Module 9 10 11 12 18 Flashcards
free gingiva
unnattached portion of the gingivia that surrounds the tooth in the region of the CEH
surrounds the tooth in a turtleneck manner
the free gingiva meets the tooth in a thing rounded edge called the
gingival margin
attached gingiva
is part of the gingiva that is tightly connected to the cementum on the cervical third of the root and to the periosteum of the alveolar bone.
the junctional epithelium is the tissue that forms the base of the sulcus by attaching to the enamel of the crown near the CEH
TRUE
probing depths on the mesial and distal surfaces are slightly deeper than depths on lingual/facial surfaces.
true
periodontis
is a bacterial infection of all parts of the periodontium including the gingiva, periodontal ligament, alveolar bone, and cementum
gingival sulcus ***
the v shaped space between the free gingiva and the tooth surface
a periodontal probe is inserted into this space to asses its health
interdental gingiva
between the two adjacent teeth apical to the contact area
periodontal disease can be either gingivitis or periodontitis
true
gingivitis is _________ and periodontitis is _____
reversable;non reversable
periodontal pocket
a gingival sulcus that has been deepened by disease; depth is greater than 3 mm
if gingivitis is not fixed it can lead to periodontitis
true
gingival pocket
deepining of gingivial sulcus cause by detachment of coronal portion of JE and swelling tissue
*SWELLING
pockets are deeper b.c they are swollen. no loss of bone
periodontal pocket
forms apical migration of the JE and destruction of periodontal fibers and bone
**LOSS OF BONE
more recession
A probing depth reading ALONE is NOT enough information to tell you if a tooth has normal bone support or bone loss!
Remember, the position of the gingival margin can change with swelling, overgrowth, and recession.
IMPORTANT
Probing depth readings accurately indicate the level of the bone only IF the gingival margin is in its normal position, slightly above the CEJ.
**
+ is ______ - is _____
recession; edema
Clinical attachment level (CAL)
is the estimated position of the structures that support the tooth as measured with a periodontal probe.
The clinical attachment level provides an estimate of a tooth’s stability and the loss of bone support.
The clinical attachment level is
is calculated to estimate the level of the periodontal attachment system on a tooth.
furcation
is the place on a multirooted tooth where the root trunk divides into separate roots.
Furcation involvement
is a loss of alveolar bone and periodontal ligament fibers in the space between the roots of a multirooted tooth.
mylenation
with practice of muscle memory, movements become smoother
process of forming myelin sheath around the nerve to allow nerve impulses to move mroe quickly
wrist rocking motion
hand wrist arm working together as a unit to produce a rotating motion used to move the working end of an instrument
less fatigue
motion similiar to action of turning a door knob
digital activation
moving the instrument by flexing the thumb index and middle fingers
moves the instrument by making push-pull movements with fingers
will use it for sometimes for power scalers and
right upper molars
rolling the instrument
roll between the thumb and the index finger
drive finger
leading finger
index finger or thumb. determines the direction in which it rolls
pivoting
slight swinging motion of the hand and arm carried out by balancing on the fulcrum finger
pivot is a tiny movement used to reposition the hand
the fulcrum finger acts as a pivot
adaptation
positioning the first 1 to 2 mm of the working ends lateral surface in contact with the tooth
positiong of the toe third or tip third of the working end against the tooth surface ** AT
ALL TIMES
a probing depth deeper than 3 mm indicates a
periodontal pocket
what is the junctional epithelium
the tissue that forms the base of the sulcus by attaching to the enamel of the crown near the CEJ
distance from the gingival margin to the coronal most poart of the junctional epitheliem (BASE OF THE SULCUS)
probing depth
distance in mm from the gingival margin to the base of the sulcus or periodontal pocket- measured with a probe
in healthy tissue
1-3 mm
the probe tip touches the tooth near the CEJ
in a pocket- greater than 3 mm
the prob tip touches the ROOT somewhere below the CEJ
the probe tip is
1-2 mm of the side of the probe
you move in _____ incriments
1 mm
stroke pressure should be
10 and 20 g
what technique is used to probe the mesial and distal surfaces?
two step
six zones per tooth
- distofacial
- facial
- mesiofacial
- disolingual
- lingual
- mesiolingual
gingival pocket is formed due to
- detachment of the coronal portion of the JE from the tooth and
- increased tissue size due to swelling of the tissue
periodontal pocket is formed due to
- apical migration of the JE
2. destruction of the periodontal ligament fibers and alveolar bone
apical migration
movement of the cells of the JE from their normal position - coronal to the CEJ- to a position apical to the CEJ
in periodontitis, the junctional epithelial cells attach to the cementum of the tooth root.
the free gingiva meets the tooth at the
gingival margin
periodontal attachment system
is a group of structures that work together to attach the teeth to the maxilla and mandible
to remain in the oral cavity a tooth must be attached by
- JE
- Fibers in gingiva
- periodontal ligament fibers
- alveolar bone
loss of attachment occurs during
periodontitis characterized by 1. relocation of the JE 2. destruction of gingival fibers 3. destruction of periodontal ligament 4. loss of alveolar bone support
attachment in health
junctional epithelium attaches to enamel at base of sulcus
fibers brace the tissue against the crown
many fibers attach root to bone of socket
most of the root is surrounded by bone; the tooth is firmly held in its socked
attachmeht in disease
JE attaches to cementum at base of periodontal pocket
fiber destruction, tissue lacks firmness
fewer fibers remain to hold tooth in socket
part of the root is surrounded by bone the tooth may be movable in its socket.
loss of bone and recession of the gingival margin
only the gingival margin differs!
in periodontitits there is damage to the
gingival connective tissue, periodontal ligament, and alveolar bone
comprehensive periodontal assessment is
fact gathering process designed to provide a complete picture of a patients periodontal health status.
recession is
measurment from the free gingival margin to the cej
clinical indicator of loss of attachment
intra oral lesions are recorded in two measurments
anterior-posterior measurement
superior inferior measurement
for raised lesions- record height
sunken lesions record the depth
ORAL LESIONS should be documented
- date. 2 size 3 location 4 color 5 character of the lesions, 6. any other info provided by the patient.
classification of mobility class 1
slight mobility, up to 1 mm of horizontal displacement in a facial lingual direction
classification of mobility class 2
greater than 1 mm but less than 2 mm of horizontal displacement in a facial lingual direction
classification of mobility class 3
greater than 2 mm of horizontal displacement in a facial lingual direction or vertical mobility
