mucogingival defects

Examples of MGD

 Gingival/soft tissue recession

 Lack of keratinized gingiva (<1mm)

 Decreased vestibular depth

 Periodontal probe extends to or past MGJ

 Aberrant frenum/muscle position/attachment (pull)  Gingival excess

 Abnormal colo

normal mucoginival condition has an abscess of what

disease state

if the patient has lack of keratinized tissue is it always a mucogingival defect?

NO, Commonly observed in absence of underlying disease state

if the patient has Aberrant frenum and decreased vestibular depth is it always a mucogingival defect?

no

what is the periodontal biotype influenced by ?

genetics and environment

periodontal biotype include what

gingival biotype, bone morphology, and tooth dimension

thin scalloped

Slender, triangular-shaped crown

Thin, delicate, friable (tears/bleeds easily) soft tissue with thin alveolar bone

Narrow zone of keratinized tissue

Accentuated scalloped gingival margin contour

what biotype has Greater tendency for onset, progression of mucogingival deformity

thin scalloped

thick scalloped

Slender, triangular-shaped crown

Thick, fibrotic gingiva

Narrow-to-moderate zone of keratinized tissue

Accentuated scalloped gingival margin contour

which biotype is Prone to development of mucogingival deformity

thick scalloped

thick flat

Wide, square-shaped crown

Thick, dense, and fibrotic tissue

Wide band of keratinized tissue

Flat gingival margin contou

what biotype is More resilient and less susceptible to inflammation and trauma than thin- and thick- scalloped biotypes

thick flat

how many different biotypes can one person have in their mouth?

any amount. Varies among different teeth

thick flat

thick scalloped

thin scalloped

what tissue type is a risk factor for recession

thin tissue biotype

Miller classification

Based on level of gingival margin with respect to mucogingival junction and underlying alveolar bone

issue with the miller

Does not clearly define amount of interproximal soft/hard tissue loss needed to differentiate Class III from Class IV

miller class 1

Marginal tissue that does not extend to mucogingival junction

miller class 2

Marginal tissue recession that extends to or beyond MGJ with no periodontal loss in interdental area

miller class 3

Marginal tissue recession that extends to or beyond MGJ with interdental bone or soft-tissue loss and/or malpositioning of teeth

miller class 4

Marginal tissue recession that extends beyond MGJ with severe loss of interdental bone to level corresponding to most apical extent of marginal tissue recession

cairo

Uses objective identifiable criterion (clinical attachment level) to classify extent and severity of soft tissue recession

cairo type 1 (RT1)

Gingival recession with no loss of interproximal attachment

cairo type 2 (RT2)

• Gingival recession with loss of interproximal attachment

• Amount of interproximal attachment loss less than or equal to buccal attachment loss

cairo type 3 (RT3)

• Gingival recession with loss of interproximal attachment

• Amount of interproximal attachment loss greater than buccal loss