Periodontics Flashcards
Attachment apparatus (3)
PDL
CEMENTUM
ALVEOLAR BONE
Gingival apparatus (2)
Gingival fibers
Epithelial attachment
Periodontal space size
0.2 mm
Stippling appearance
Orange peel appearance
Peau d orange
Stippling are irregularities of (2)
Epithelial ridges
Rete pegs
Most impt for checking gingivitis
BOP
Least determinant for gingivits
Stipplings
Absence of stippling is due to (3)
Normal variation
Inflammation
Edema
Oral epithelium
Kerat strat squamous epith
Sulcular epithelium
Non kerat but can benierar
Collar band of strat squamous epith
Junctional epith
JE is thicker near _____
And thinner at the ______
Sulcus
Apex
After ortho procedure, what is use to prevent relapse
Supracrestal fibrotomy
Transudate
<1.012
Which has more protein content
Exudate
Exudate
> 1.018
Gingival fiber grp aka
Supracrestal connective tissue fiber
Fiber that encircles the tooth resist rotational forces
Impt for ortho
Circular fiber
Mainly resist lateral movts
Alveolar crest grp
Resist lat movts and vertical movts
Horizontal fiber grps
Most numerous
Most resistant to forces along long axis of tooth
Oblique fiber group
Primary fibers that resist tooth towards occlusal direction
Prevent extrusive movts
Apical fiber group
Found in multirooted teeth
Interradicular fiber group
Periodontal fibers embedded in cementum and bone are called
Sharpeys fibers
Most numerous cells found in PD ligament
Fibroblast
Free gingiva or marginal gingiva is measured from (2)
Free gingival crest to free gingival groove
Most coronal portion of gingiva
Gingival margin
Line bet marginal gingiva and attached gingiva
Free gingival groove
Measured from free gingival groove to the mucogingival junction
STIPPLING ARE FOUND HERE
Attached gingiva
Where gingival crevicular fluid found
Gingival sulcus
Gingival sulcus is bounded (2)
Sulcular epith - laterally
JE - apically
Shape of interdental or interprox gingiva
Pyramidal
A line bet attached gingiva and alveolar mucosa
Mucogingival junction
Loosely attached mucosa covering the base of the alveolar process continuing towards the vestibule and floor of mouth
Alveolar mucosa
Probing force
10-20 grams - 0.010 to 0.025 kg
Probing age
13-14 years old
Calcular deposits are made up of
Calcium
Phosphate
Sticky deposits in oral cavity where MO accumulates
Plaque
Immediately after cleansing tooth, a thin film of saliva covers the tooth
Salivary pellicle
CAL is measured from
CEJ towards base of sulcus
Gingival recession is measured from
CEJ to gingival margin
CAL - pocket depth =
Gingival recession
Most common cause of failure of grafts (2)
Loss of blood supply
Infection
What joint is seen between a tooth and alveolar bone
Gomphosis
What is the most critical factor in determining if a tooth is candidate for exo or can be saved with surgical pd therapy
CAL
Rx for prox bone loss
Bitewing rx
Most effective way to determine presence of plaque
Disclosing solution
What is the best indicator to evaluate success of scaling and root planing
Bleeding and plaque index
Removal of calcular deposits in root surface
Scaling
Smoothing of root to remove infected tooth substances
Planing
Scraping of gingival wall
Curettage
Types of oral mucosa
Masticatory
Lining
Specialized mucosa
Tooth wear due to chemical action
Erosion
Tooth wear due to mechanical wear
Abrasion
Tooth wear due to physiologic action
Attrition
Tooth wear due to occlusal loading resulting to tooth flexure and microfracture
Abfraction
Commonly involved in toothbrush trauma
Canines
PM
Best toothbrushing technique
Bass method
45 degress in rel to tooth but towards occlusal
Charters
Bristles at 45 degrees in rel to tooth towards sulcus
Cleans gingival sulcus
Bass method
Bristles at degrees in rel to tooth towards sulcus
Stillman
Least effective brushing tech
Fones technique
Most commonly used toothbrush technique
Horizontal - scrub technique
Vertical brushing
Leonard technique
Circular brushing
Fones technique
Vibratory brushing (3)
Stillman
Charters
Bass technique
In pseudopockets, gingival margin move ___ due to gingival overgrowth
Coronally
Recessiom can be treated by (2)
Free gingival graft
CT graft - better
Masticatory mucosaa (3)
Dorsum of tongue
Hard palate
Attached gingiva
Lining mucosa (3)
Buccal
Labial
Alveolar mucosa
Causative agent of NUG
Fusobacterium
Prevotella intermedia
Spircocheete
Causative agent of localized agressive perio (2)
Aggregatibactr actinomycetemcomitans
Capnocytophaga ochracea
Generalized aggressive perio causative agent (2)
Prevotella intermedia
Eikenella corrodens
Papillon levre syndrome aka
Palmoplantar keratoderma periodontitis
Down syndrome often has perio caused by what MO
P. Intermedia
Inability of leukocyte to adhere to site of infection
Leukocyte adhesion deficiency
Poor response of leukocytes to infectiom
Lazy leukocyte syndrome
Most impt diagnostic criteria for perio
Bone loss
Primary proteinase that destroys pd tissue
Matrix metalloproteinase
Signaling molecules like interleukins and tumor necrosis factor
Cytokines
Way of communicating of MO
Quorum sensing
One wall
Two wall
Three wall AKA
Hemiseptum
Osseous crater
Intrabony defect
Most common type of osseous defect
Two wall
Most common pattern of bone loss
Horizontal bone loss