Term
| the gingiva, the attachment apparatus and the alveolar bone all make up what? |
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Definition
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Term
| the attachment apparatus consists of what? |
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Definition
-cementum
-periodontal ligament
-alveolar process |
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Term
| what is so special about the periodontal ligament, what does it do? |
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Definition
-replace cementum
-make more periodontal ligaments
-replace bone
(this is why it is so important to maintain blood supply to the periodontal ligament) |
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Term
| if a tooth has been damaged and perioligament health is in question what are some factors that could depend on its continued health? |
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Definition
-stabilization
-extent of damage
-contamination of tissue with toxins from necrotic dental pulp
-time tooth was out of socket
-storage method used |
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Term
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Definition
| time tooth was out of socket |
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Term
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Definition
| tooth was not placed in fluid or solution |
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Term
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Definition
| breakdown or destruction of root structure of a tooth, when the living body cells attack part of tooth. |
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Term
quite often root resorption happens during orthodontics
true/false |
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Definition
| true dental trauma can be caused by moving teeth. |
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Term
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Definition
| traumatic removal of tooth( accidental or sport injury). |
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Term
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Definition
when a tooth can be reinserted into alveolus.
(optimal time for this is 15 min) |
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Term
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Definition
| dislocation of primary teeth |
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Term
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Definition
cementoblasts are responsible for depositing cementum on dentin that covers the root.
osteoblasts are responsible for producing bone that lies under perio ligament |
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Term
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Definition
| when osteoblasts respond to traumatic injury by producing new bone to repair alveolar bone. |
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Term
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Definition
| when a tooth is lost and replanted, the direct attachment of bone leads to recontouring of physical bone and entire root is replaced with bone. |
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Term
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Definition
| when damage to bone involves slow cementoblasts and therefore osteoblasts get there first and entire root is covered by bone. it involves recontouring. |
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Term
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Definition
| the fusion of tooth to bone, prevents tooth from erupting. |
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Term
| if using percussion and hearing a high pitch sound what does this indicate? |
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Definition
root resorption
(another common thing about roor resorption is no mobility) |
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Term
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Definition
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Term
| what does inflammatory resporption involve? |
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Definition
-death of pulp
-necrotic tissue is infected with toxins
-occurs when replacement resorption involves dentin
-inflammatory products cause loss of root surface (cementum) |
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Term
| when inflammatory resorption occurs what must be re-established to save the tooth? |
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Definition
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Term
| if the pulp dies and there is no blood supply to tooth what is necessary? |
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Definition
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Term
| can pulp be revascularized with open apices? |
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Definition
| -yes you can revascularize if apex is opened but not if apex is closed. |
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Term
| during the examination after tooth avulsion or trauma what are you looking for? |
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Definition
-soft tissue lacerations
-tooth integrity
-loose teeth (mobile/ blood supply may have been affected
-movement of alveolar process (indicates alveolar fracture) |
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Term
| what is the greatest predictor of root resorption? |
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Definition
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Term
| what can cause loss of pdl and dehydration of pulp? |
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Definition
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Term
| when there has been tooth injury what other things could be affected? |
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Definition
head or spine injury
neurological trauma
pain control (temp) |
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Term
| what do you use to test for validity of pulp? how does it work? |
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Definition
-pulp tester(electric charge calibrated patient responds to temp)
-if cold then goes away tooth is normal
-if hot indicative that pulp may be compromised
-if no response to heat at all, pulpal necrosis likely |
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Term
| what does a laser doppler do/ |
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Definition
| -realtime measurement of flow of red blood cells in capillaries "perfusion" |
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Term
| what are the categories of traumatic dental injuries? |
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Definition
class I- enamel only
class II-enamel and dentin
class III-enamel, dentin, and pulp
class IV-complete loss of clinical crown at gumline |
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Term
| what should happen if primary tooth is interferes with occlusion or endangers permanant teeth? |
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Definition
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Term
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Definition
| obstruction of blood supply to pulp |
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Term
| what are 2 types of displacement? |
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Definition
intruded teeth-pushed in
extruded teeth-pushed out or avulsed |
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Term
| most trauma occurs to what teeth |
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Definition
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Term
| what are some structures that are involved in traumatized teeth? |
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Definition
-pdl
-cementum
-alveolar bone
-nerves
--blood supply |
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Term
| root resorption often occurs when? |
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Definition
naturally by shedding deciduous teeth
trauma |
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Term
| what are the 2 types of root resporption? |
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Definition
replacement (most common)
inflammatory |
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Term
| what is the most common tooth associated with avulsed primary teeth? |
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Definition
maxillary anterior
may discolor
great risk for age 2 and under |
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Term
| a primary tooth injury can have damage to tooth germ. what is the percentage affects the permanent tooth? |
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Definition
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Term
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Definition
| involves root canal dressing, usually calcium hydroxide at apex which may induce closing of apex. |
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Term
| what do you do if you are replacing an avulsed tooth? |
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Definition
rinse tooth
align tooth with socket
rinse with saline to avoid clot
blunt instrument
splint to give stability
crown fracures with no luxation heal 99% |
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Term
| is tooth survival likely if extra alveolar time exceeds 60 min? |
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Definition
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Term
| can you use fragments of teeth if chipped? |
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Definition
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Term
| if an apical diameter is less than 0.7mmm in an intruded secondary tooth what may happen? |
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Definition
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Term
| if apical diameter is 1.2mm is there a chance for healing of loss of secondary tooth? |
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Definition
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Term
| what are the optimal ways to store tooth? |
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Definition
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Term
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Definition
| teeth used for attaching a bridge at both ends |
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Term
| primary dentition trauma peaks at age? |
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Definition
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Term
| movement of teeth and alveolar process together indicates what? |
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Definition
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Term
| the initial exam of dental trauma includes? |
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Definition
-soft tissue exam
-hard tissue exam
-x-rays
neurological evaluation
(can involve head or brain inury) |
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Term
| a class III fracture involves what? |
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Definition
| enamel, dentin, pulp tissue |
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