3rd molar assessment Flashcards
What are problems with messy angular impaction of a third molar
Pericarditis
- Dental caries
- Periodontal disease
- Distal caries in second molars
Define symptoms
An indication of a disease noticed by a patient
Define sign
Observation by heath professional indicating disease or disorder
What problems can 3rd molars cause
Swelling
Caries
pericoronitis
What is pericoronitis
A partially erupted toothn covered by a large amount of soft tissue (operculum) that can get infected
How can we treat pericoronitis
Remove the tooth
What are the causes of pericoronitis
- Patients with compromised host defenses
- Minor trauma
- Food trapping under the operculum
- Bacterial infection
- Poor OH
List some signs and symptoms of pericoronitis
- Pain
- Halitosis
- Swelling
4, Erythema - Bad taste
What can happen if pericoronitis not treated
- Trismus
- Pyrexia
- Lymphadenopathy
- Malaise
- Dysphagia
List some spaces in the head that can get infected in a patient with untreated pericoronitis
Submandibular space
Sublingual space
Buccal space
What can pericoronitits be mistaken for
Tonsillitis
How can we differentiate between Pericoronitis and tonsillitis
Unilateral tonsil affected in Pericoronitis
Bi lateral tonsils affected then tonsillitis which requires antibiotics
What do we use to irrigate sockets
Saline
What are the benefits of saline
Body already makes it
Easy for patients to make at home
IF we suspect systemic involvement following pericoronitis what should we do
Prescribe antibiotics
Which antibiotics do we prescribe for systemic pericoronitis
Metronidazole 200mg TDS for 3/7
Amoxicillin 500mg TDS for 3/7
Why can some third molars be impacted
Due to an obstruction in their eruption path, pathology or lack of physical space
List the different types of impaction
- Partially erupted and partially covered by soft tissues
- Unerupted and completely covered by soft tissue
- Unerupted and covered by bone and soft tissue
When on average does a 3rd molar complete its eruption
20 but uptown 25
How are third molars classified
Classified by the position of their impaction
Name the different classification of 3rd molar impaction 1
- mesioangular
- Horizontal
- Vertical
- Distoangular
How common are Mesio angular 3rd molar impactions
25.5%
How common are horizontal 3rd molar impactions
4%
How common are vertical 3rd molar impactions
61.8%
How common are disto angular 3rd molar impactions
6.7%
Talk through the guidance of extractions of wisdom teeth given by NICE
- Unrestorable caries
- Non treatable pulpal and or periapical caries
- Cellulitis
- Abscess
- Osteomyelitis
- Internal / External resorption of the tooth or adjacent teeth
- Fracture of tooth
- Disease of the follicle inc cyst/tumour
- Tooth / teeth impeding surgery
- Reconstructuve jaw surgery
- Tooth is involved in the field of tumour resection
List some patient factors we must consider when assessing an oral surgery patient
- Age
- Social History
- Medical history
- Drug history
- BMI
- Ethnicity
- Capacity