The periodontal-endodontic continuum TEST #2 Flashcards
What forms the periodontal-endodontic lesion?
- Develops by extension apically combiningg with an existing periapical lesion
- Endodontic lesion combining with an existing periodontal lesion
If the pulp is alive should it mess up the periodontium?
-No
What is the essential difference between the periodontal or endodontic lesion?
-The respective source of infection
What are two ways that abscesses may drain?
- Sinus tract
- Osseous fistulation
What is essential for successful healing of a periodontal-endodontic lesion?
-Both periodontal and endodontic treatment
Can pulpal disease initiate or perpetuate periodontal disease?
-Yes
Does periodontal disease initiate pulpal disease?
-No
What is a guarded prognosis?
-Hopeless
What is the most guarded prognosis?
-True combined lesions
If you have a combined perio-endo lesion what will adequate endo therapy do?
-Fix the endodontic problem
In combined disease what is the prognosis dependent upon?
-Usually the severity and extent of the periodontal lesion and efficacy of perio therapy
In perio-endo lesions what treatment is more predictable of the two?
-Endodontic treatment
Periapical lesions extend in which directions?
-Apically or coronally
Whereas periodontal lesions tend to extend only what direction?
-Apically
What does the dental papilla become?
-Dental pulp
Tissues of the periodontium develop from what?
-Dental follice
What are three ways the periodontium communicates with the pulp?
- Apical foramen
- Lateral canals
- Dentinal Tubules
What is the main pathway between the pulp and the PDL?
-Apical foramen
Where do dentinal tubules extend to and from?
- To the CDJ
- From the pulp
What does a vertical root fracture mimic?
-Periodontal problems
What is the second main communicating pathway in endo?
-Lateral canals
What is the minor communicating endo pathway?
-Dentinal tubules
What forms lateral canals?
Epithelial root sheath breaks down before root dentin is formed
When can the periodontium infect a healthy pulp?
-When the diseased periodontium progressed to the apical area
The molars have furcation canals at what percent of the time?
50% (really 46%)
What is the etiology of endo pulpal lesions?
-Pulp infection
What is the etiology of periodontal lesions?
-Periodontal infection
What is the vitality of a tooth with a endo pulpal lesions?
-Non vital
What is the vitality of a tooth with perio lesions?
-Vital
What is the primary cause of periodontal lesions?
-Plaque and calculus
What type of inflammation do you see with pulpal lesions?
-Acute
What type of inflammation do you see with periodontal lesions?
-Chronic
What type of pockets do you see in pulpal lesions?
- Single
- Narrow
What type of pockets do you see in periodontal lesions?
- Wide
- Coronally
What type of radiographic pattern do you see in pulpal lesions?
-Localized
What type of radiographic pattern do you see in periodontal lesions?
-Generalized
What type of bone loss d you see in pulpal lesions?
-Wider apically
What type of bone loss do you see in periodontal lesions?
-Wider cervically (CEJ)
What type of lesion do you see vertical bone loss?
-Periodontal
