Perio Ch 7&8 Flashcards
Do local contributing factors initiate periodontal disease?
No, it contributes to the process already initiated and may increase the risk of developing the disease
What are the 3 ways local contributing factors increase the risk of disease?
- Increase biofilm retention (rough edge on a restoration)
- Increase biofilm pathogenicity (biofilm- covered calculus deposit)
- Cause direct damage to the periodontium (heavy chewing forces on tooth)
2 factors that increase biofilm retention?
Dental calculus
Tooth morphology
3 modes of calculus attachment to the tooth
- Attach to pellicle (most common means of attachment to surface of the tooth) easy removal
- Attach to tooth irregularities (difficult to remove due to deposits in tooth defects)
- Attach by direct contact to the tooth (firmly interlocked and difficult to remove)
What is the ability of the bacteria in biofilm to produce periodontal disease?
Pathogenicity
What are the causes that cause direct damage to the periodontium?
Food impaction
Patient habits
Faulty restorations
Occlusal forces
Local contributing factors are?
Dental calculus Latrogenic factors Dental decay Trauma Anatomic
Unintentionally caused by dental work
What position do you measure occlusion in?
Centric relation
What is any deviation from normal termed?
Malocclusion
Physiologic occlusion is what?
Not ideal but is symptom free and adapts to deviated occlusion
What is pathologic occlusion?
Dentition shows signs and the other has symptom of occlusal disease
Normal overbite?
2-5mm
Para functional occlusal forces
Results from tooth to tooth contact when not in the act of eating
Ex: clenching, bruxism, nail biting, tongue thrusting, thumb sucking, pencil chewing
Is gingiva affected by excessive occlusal forces?
No
Does occlusal trauma alone cause gingivitis, periodontitis, pocket formation or gingival recession?
No
