Intro to endodintics Flashcards
What is included in the scope of endodontics? (7)
- Root canal treatment - disinfection and sealing root canal system
- Diagnosis of orofacial pain
- Pulp preservation therapies
- Bleaching of endodontically treated teeth
- Restoration of ecdodontically treated teeth
- Retreatment and surgery
- Dental trauma management
What are the tissues involved in endodontic disease? (2)
- Dentine
- Pulp
How many roots does a maxillary central incisor have?
- 1 (apical curve)
How many roots does a maxillary lateral incisor have?
- 1 (distal apical curve)
How many roots does a maxillary canine have?
- 1 (dist-lab apical curve)
How many roots does a maxillary 1st premolar have?
2-3
How many roots does a maxillary 2nd premolar have?
- 1-3
How many roots does a maxillary 1st molar have?
3
How many roots does a maxillary 2nd molar?
3
How many roots does a maxillary 3rd molar have?
1-3
How many canals does a maxillary central incisor have?
1
How many canals does a maxillary lateral incisor have?
1
How many canals does a maxillary canine have?
1
How many canals does a maxillary 1st premolar have?
- 1 (6%)
- 2 (95%)
- 3 (1%)
How many canals does a maxillary 2nd premolar have?
- 1 (75%)
- 2 (24%)
- 3 (1%)
How many canals does a maxillary 1st molar have?
- 4 (93%)
- 3 (7%)
How many canals does a maxillary 2nd molar have?
- 4 (37%)
- 3 (63%)
How many roots does a mandibular central incisor have?
1 (dist apical curve)
How many roots does a mandibular lateral incisor have?
1 (dist apical curve)
How many roots does a mandibular canine have?
1 (dist +/- lab curve)
How many roots does a mandibular 1st premolar have?
1
How many roots does a mandibular 2nd premolar have?
1
How many roots does a mandibular 1st molar have?
2-3
How many roots does a mandibular 2nd molar have?
2
How many roots does a mandibular 3rd molar have?
1-2
How many canals does a mandibular central incisor have?
- 1 (58%)
- 2 (42%)
How many canals does a mandibular lateral incisor have?
- 1 (58%)
- 2 (42%)
How many canals does a mandibular canine have?
- 1 (94%)
- 2 (6%)
How many canals does a mandibular 1st premolar have?
- 1 (73%)
- 2 (27%)
How many canals does a mandibular 2nd premolar have?
- 1 (85%)
- 2 (15%)
How many canals does a mandibular 1st molar have?
- 3 (67%)
- 4 (33%)
How many canals does a mandibular 2nd molar have?
- 2 (13%)
- 3 (79%)
- 4 (8%)
What are possible pathologies/clinical conditions that might require root treatment? (7)
- Trauma
- Tooth surface loss
- Dental caries
- Cracked/fractured teeth
- Pulpal pathology
- Periapical pathology
- Root resorption
What kind of disease is endodontic disease in relation to microbes?
- A biofilm disease
What is a biofilm?
- Communities of bacteria and fungi that collaborate to evade host attempts to eradicate the bacterial colonies
What are different ways that a microbial biofilm can be resistant to host defences? (5)
- Anti-microbial’s may fail to penetrate beyond the surface layers of the biofilm
- Anti-microbial’s may be trapped and destroyed by enzymes
- Antimicrobials may not be active against non-growing organisms
- Expression of biofilm specific resistance genes (e.g. efflux pumps)
- Stress response to hostile environmental conditions (leading to an overexpression of antimicrobial agent-destroying enzymes)
What are the 3 features of apical periodontitis?
- Chronic poly-microbial infection
- Stimulation of host response
- Connective tissue destruction
What are the 2 clinical objectives of root canal treatment?
- Removing canal contents
- Eliminating infection
What is obturation?
- Filling of the root canal space
What is the aim of endo-restorative treatment?
- To provide an environment that allows healing of periradicular tissues so that the tooth is retained as a functional unit in the dental arch