Furcation Classification Flashcards

Questions and Answers

What does Class I furcation classification indicate?

Probe tip penetrates into furcation, but does not pass completely through

Curvature of concavity can be felt with probe tip (correct)

Probe passes completely through furcation & entrance is clearly visible

Probe passes completely through furcation

What characterizes Class II furcation classification?

Curvature of concavity can be felt with probe tip

Probe passes completely through furcation

Probe tip penetrates into furcation, but does not pass completely through (correct)

Probe passes completely through furcation & entrance is clearly visible

What does Class III furcation classification mean?

Probe passes completely through furcation (correct)

Curvature of concavity can be felt with probe tip

Probe passes completely through furcation & entrance is clearly visible

Probe tip penetrates into furcation, but does not pass completely through

What is indicated by Class IV furcation classification?

Probe passes completely through furcation & entrance is clearly visible Signup and view all the answers

What is the furcation access for MD molars?

Bu & Li Signup and view all the answers

What does fenestration refer to in dental terms?

Bone loss on the facial or lingual aspect that creates a 'window' Signup and view all the answers

What is dehiscence in dentistry?

Loss of alveolar bone on the facial aspect leaving an oval, root-exposed defect Signup and view all the answers

Study Notes

Furcation Classification

Class I: Curvature of concavity felt with the probe tip.
Class II: Probe tip penetrates into the furcation but does not pass through completely.
Class III: Probe passes completely through the furcation.
Class IV: Probe passes through the furcation and entrance is visibly clear.

Furcation Access

Mandibular (MD) molars have access points on buccal and lingual sides.
Maxillary (MX) molars have access on median, distal, and facial surfaces.
Maxillary first premolars have access on mesial and distal, as well as buccal and palatal roots.

Fenestration

Defined as a "window" effect with bone loss on the facial or lingual sides of a tooth.
Exposed root surface comes into contact with gingiva or alveolar mucosa.
Distinguished from dehiscence by being bordered by alveolar bone at the coronal aspect.

Dehiscence

Known as a "door," characterized by loss of alveolar bone on the facial side (rarely lingual).
Creates an oval, root-exposed defect from the cementoenamel junction downwards.
Defect size varies from one to two millimeters to the full length of the root.
Key features include gingival recession, alveolar bone loss, and root exposure.

Description

Test your knowledge on furcation classification with this set of informative flashcards. Each card presents a different class of furcation along with its definition to enhance your understanding of dental anatomy and periodontal conditions.