Occlusal Trauma (E2,L4) Flashcards
_________: Defined as damage to the periodontium caused by stresses on the teeth produced directly or indirectly by teeth in the opposing jaw.
Perio Trauma from Occlusion
Trauma from occlusion is considered to be _________. Forces of occlusion that _______ the adaptive capacity of the periodontium.
PATHOLOGICAL…..EXCEED
The 4 variables of occlusal trauma to Perio disease are direction, magnitude, duration, and frequency of the _______.
FORCES
What are the three periodontal components affected by occlusal trauma? What 2 components of the periodontium are NOT affected by occ trauma???
Affected: 1.Cementum 2.PDL 3.Alveolar Bone Proper….NOT affected: 1. Gingiva 2.Junctional Epithelium
Clinical Symptoms of Occlusal Trauma: Radiographic evidence of “ ________”/”_______” PDL.
“thickened”/”widened”
Clinical Symptoms of Occlusal Trauma: Evidence of occlusal _____ in centric relation or centric occlusion
slide
Clinical Symptoms of Occlusal Trauma: Evidence of occlusal interference in ________ mandibular movement.
protrusive
Clinical Symptoms of Occlusal Trauma: Evidence of ______ and/or balancing side occlusal interferences.
working
YAY LATIN!!!! _______: a tremulous vibratory movement of a tooth when teeth come into functional contact – generally detected by finger palpation.
Fremitus!
Trauma from occlusion on the compression side: Compression of PDL fibers with INITIAL decrease in _____ of PDL space.
width
Trauma from occlusion on the compression side: Loss of _____ orientation.
PDL fiber
Trauma from occlusion on the compression side: Rupture of capillaries and hemorrhage into ____ perivascular spaces.
PDL
Trauma from occlusion on the compression side: Resorption of alveolar bone proper followed by _______ of PDL space.
widening
Trauma from occlusion on the compression side: If SEVERE, _____ resorption may occur
root!
WHICH SIDE displays surface resorption of bone and compacting of PDL?
Compression side of tooth movement! (like in ortho!)
Trauma from Occlusion: Tension side– Tension (stretching) of fibers with initial ______ in PDL space.
INCREASE
Trauma from Occlusion: Tension side–Rupture of ____ fiber bundles.
PDL
Trauma from Occlusion: Tension side– _______ of PDL capillaries and hemorrhage into PDL perivascular spaces.
Compression
Trauma from Occlusion: Tension side– _______ of new alveolar bone proper followed by _______ in PDL space.
Apposition…Decrease!
Trauma from Occlusion: Tension side– the cementum shows ______
tearing
Which type of occlusal trauma? Occurs when occlusal forces are excessive (increased) and the amount of alveolar bone support is normal.
PRIMARY occlusal trauma
Primary Occlusal Trauma from NON-Vertical Forces: Pressure points on bone and PDL with forces NOT in ______ of the tooth during excursive movements.
long axis