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43 Cards in this Set
- Front
- Back
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Avulsed Tooth
Definition |
Tooth extruded from socket
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Luxated Tooth
Definition |
Displaced from socket
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Traumatized Tooth
Splint duration for PDL healing? |
4 Weeks
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Traumatized Tooth
Splint duration if bone damage? |
6 weeks
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Traumatized Tooth
Splint duration if Pulpo-dentinal complex injury? |
2 weeks
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Traumatized Tooth
Possible complication if trauma occurred outdoors? |
Tetanus
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Avulsed Tooth
How long to wait before re-implantation? |
None! Implant ASAP
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Can an avulsed tooth be RCT'd extra-orally?
If so - how? |
Only if extra-oral dry time >60mins.
Mechanically clean root and immerse in fluoride varnish prior to re-implantation |
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Avulsed Tooth
Best storage mediums |
Milk > saline > saliva (in buccal sulcus)
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Avulsed Tooth
Method of Cleaning prior to re-implantation |
Normal saline rinse only. NEVER Mechanical
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Methods of assessing tooth vitality (9)
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History
Palpation Percussion Colour Laser Doppler Flowometry Sensitivity testing Radiographically Thermal Imaging Fiber Optic Transillumination |
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Traumatized Tooth
What complications may arise should the PDL cells have been damaged? (2) |
Ankylosis
Inflammatory resorbtion |
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Should traumatised teeth with closed apexes be endodontically treated?
When? |
Yes if avulsed or signs of non-vitalitity. As soon as stable for preparation - Ideally within 10 days.
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Avulsed Tooth
When not to re-implant? (4) |
Primary teeth
Other injuries taking priority Medical History (immunodeficiency etc.) Immature permanent tooth with short root, open apex + long extra-oral dry time |
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Avulsed Tooth
Duration of extra-oral dry time by which tooth not expected to survive? |
60 mins
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Indications for RCT following Trauma (3)
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Intrusion
Avulsion Loss of Vitality |
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Why might transient apical breakdown following trauma be beneficial?
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Can be a sign of revascularization
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% of 15yo children w/ indications of dental trauma
1983 Data |
Boys - 25%
Girls - 15% |
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% of 15yo children w/ indications of dental trauma
2003 Data |
Boys - 16%
Girls - 10% |
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Ages at which dental trauma peaks
(3) |
1-1.5
9 12-15 |
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Dental Trauma
Colloquial for Subluxed |
Loosened in socket
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Dental Trauma
Injuries pertaining to the tooth (4) |
Enamel #
Enamel + Dentine # Enamel, Dentine + Pulp involved Root # |
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Dental Trauma
Injuries pertaining to the Socket (4) |
Concussed
Subluxed Luxated Avulsed |
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Dental Trauma
Method of identifying if grit/ fractured tooth is in the lip |
Soft tissue radiograph
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Dental Trauma
When should foreign bodies be removed from the lips? |
Immediately
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Dental Trauma
What questions do you ask to rule out brain injury? (3) |
Were you unconscious at any point?
Can you remember the accident? Have you vomited since the accident? |
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Dental Trauma
% of brain injured who have lucid interval prior to death? |
30%
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Dental Trauma
Why do we take 2 radiographs when looking for fractures of a tooth? |
The fracture line may be with the angle of the radiograph
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Dental Trauma
When performing a pulpotomy in a permanent tooth, what do you use to achieve haemostasis? |
Cotton wool soaked in LA solution
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Dental Trauma
Why may subluxed teeth become non-vital |
The tooth pivots 2/3rds down the root, so the apex will have moved
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Dental Trauma
How long will a tooth survive after inflammatory resorption? |
3 months to two years
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Dental Trauma
What causes discolouration in non-vital teeth? |
Iron Oxide (Rust) from denatured haemoglobin
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Ethyl Chloride
Method of application? |
Spray on cotton wool pledget
Place on tooth surface and remove |
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Electic Pulp Testing
Where to place probe tip? |
Incisal Edge/ Cusp
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Dental Trauma
When may EC/ EPT sensitivity tests give false -ve's in permanent teeth following trauma? (2) |
Tooth revascularized
Immature apex |
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Dental Trauma
At what rate do teeth revascularize? |
1-3 mm per day
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Dental Trauma
At what rate will a central incisor space diminish if no retainer provided? |
2mm per month
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Dental Trauma
How does CaOH cement work as a direct pulp cap? |
It is pH11 causing death of bacteria and cells
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Dental Trauma
How might you obtain a dentinal floor to an immature apex? |
Fill the base of the canal with CaOH an replace every 3 months for a year
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Calcium Hydroxide
What iatrogenic damage does CaOH have on dentin? |
Dissolves the collagen structure leaving the tooth very brittle
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Dental Trauma
Design of denture to replace a lost upper incisor? |
T-denture
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T-Denture
What type of clasps, rests and coverage? (4) |
Adam's clasps on 6's
Acrylic on mesial of 6, distal of E SS stops mesial and distal to lost teeth (palatally) Minimal coverage of palate |
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Adam's Clasps
Where do they engage? |
On the mesial buccal and disto-buccal
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