9 Perio II (Exam 3): Mucogingival Deformities

• Friction forces during mastication

• Retraction by muscles on gingival margins

• Comfort and resistance to mechanical trauma during oral hygiene

• Proper oral hygiene -mucosa is mobile and can retain food

Why is keratinized tissue important?

2 mm

All surfaces with less than ___ of keratinized gingiva exhibited clinical inflammation

true

t/f: there is no significant differences in gingival inflammation or plaque scores in areas with narrow or wide attached gingiva

good oral hygiene

in the presence of ________, the width of attached gingiva is not crucial for maintaining gingival health

recession

The displacement of the soft tissue margin apical to the CEJ with oral exposure of the root surface:

• A localized inflammatory process

• Breakdown of connective tissue

• Proliferation of the epithelium into the site of the connective tissue destruction

What is the pathogenesis of recession

- trauma/ mechanical factors

- bacterial plaque

- malpositioned roots

What are 3 etiologies for gingival recession:

• Tooth malposition/root prominence

• Bone dehiscence/fenestration

• Thin Biotype

• High Frenum Attachment

• Lack of Keratinized Tissue

• Restorations

• Iatrogenic causes

• Orthodontics

What are 8 predisposing factor that when in conjunction with inflammation can lead to gingival recession

Class I

ID the Cairo Class for gingival recession

- gingival recession limited to the root, not apical to the muco-gingival junction

- no interdental bone loss

Class II

ID the Cairo Class for gingival recession

- interproximal attachment loss is less than or equal to buccal recession

- interdental bone loss

-partial root coverage

Class III

ID the Cairo Class for gingival recession

- interproximal more than buccal

- complete root coverage not achievable

-loss of interproximal attachment

Class IV

ID the Miller Class for gingival recession

- gingival recession limited to the root, that is apical to the muco-gingival junction

- interdental bone loss present, gingival recession interdentally, exposing 50% of the root

3-4 months

Gingival augmentation takes about _____ to heal

free gingival graft

connective tissue graft

What is the gold standard and most predictable treatment for mucogingival defects/ gingival augmentation:

Root coverage gold standard?

coronally advanced flaps

What is the gold standard and most predictable treatment for root coverage:

coronally advance flaps + connective tissue graft

what are the two procedures with the highest predictability of success for root coverage of initial recession?

inflammation

what is the main pathogenic pathway that causes recession and mucogingival deformities?

MB root of molars

what is a common area of recession due to tooth malposition and root prominence?

recession

thin biotypes pose an increased risk of _____ due to decreased distance from oral epithelium to sulcular epithelium

greater pocket depths

thick biotypes pose an increased risk of _______ due to thicker tissue