Periodontal Flaps - Review Flashcards
Reproduction or reconstitution of a lost of injured part:
Regeneration
List the three components of periodontal regeneration:
- Alveolar bone
- PDL
- Cementum
In periodontal regeneration, new alveolar bone, PDL, and cementum are formed restoring:
new architecture and function of the attachment apparatus
Give an example of periodontal regeneration:
bone replacement grafting
Bone graft material placed to maintain space and allow new bone, cementum and PDL cells to come in and create new materials:
What is this an example of?
Bone replacement grafting
Periodontal regeneration
The union of connective tissue with a root surface that has been deprived of its original attachment apparatus. Provides a reunion of CT with a root surface which has ben pathologically exposed:
New attachment
The union of connective tissue with a root surface that has been deprived of its ORIGINAL attachment apparatus.
What does this provide:
It provides a reunion of CT with a root surface that has been pathologically exposed.
Tissue grafting (connective tissue graft covering area of root recession) is an example of:
NEW attachment
The reunion of connective tissue with a root surface on which viable PDL tissue is present:
Reattachment
Biologic width/supracrestal tissue - existed before a flap was reflected and when the flap is replaced, reattachment occurs with the intact CT fibers. This is an example of:
Reattachment
The healing of a wound that does NOT fully restore the architecture or function of the part:
Repair
The healing by a long junctional epithelium that is the body’s protective healing to prevent ankylosis and root resorption. This is an example of:
Repair
ALL soft tissue including the periosteum is reflected exposing the underlying bone:
Full thickness flap
What is the most commonly used flap?
full thickness flap
Another name for full thickness flap:
mucoperiosteal flap
A flap in which epithelium and some connective tissue is reflected, leaving periosteum and some connective tissue overlying the bone:
Parital thickness flap
What type of flap is less commonly used?
partial thickness flap
Another name for partial thickness flap:
split thickness flap
List the principles of tissue attachment: (5)
- preparation of soft tissue wall (not necessary as a separate procedure, it is accomplished in conjunction with scaling)
- preparation of root surface
- debridement of bony defects
- adaptation of soft tissue to root surface
- control of etiology pre- and post surgery
Root changes hindering tissue attachment include:
- Foreign body nature of exposed diseased root surfaces (presence of endotoxin)
- Pathologic changes in root surface (hypo & hyper calcification areas)
- Decreased organic material in exposed cementum (loss of fibers and alterations in the organs c material related to endotoxin)
What is the therapeutic endpoint (success) of periodontal flap surgeries?
A functional, comfortable, healthy dentition with stable probing attachment levels
How do you know which surgical periodontal procedure to use?
- diagnosis
- Know your endpoint (regeneration, pocket elimination, pocket reduction)
- know indications and contraindications
- maintenance
Removal of connective tissue and epithelial attachment with a curette:
Currettage
Removal of connective tissue and epithelial attachment circumferentially with a scalpel:
ENAP
Two ways to surgically involve the gingiva. Normal epithelium has finger-like projections (rete ridges). The connective tissue grows down and the epithelium grows upwards:
Gingivectomy vs. Gingivoplasty
The excision of the soft tissue wall of the periodontal pocket. Incision forms an external bevel or surface that is exposed to the oral cavity:
gingivectomy
REMOVES diseased gum tissue:
gingivectomy
What is the function of a gingivectomy?
Eliminates gingival enlargement and eliminates supra bony pockets
T/F: A gingivectomy is responsible for removing infra bony pockets:
false- supra bony packets
Gingival deformities are reshaped and reduced to create a normal and functional form. The incision creates an external bevel:
gingivoplasty
What is the function of a gingivoplasty?
Reshapes otherwise healthy gum tissue
Reshapes otherwise healthy gum tissue:
gingivoplasty
What is the most common INDICATION for a GINGIVECTOMY:
Elimination of gingival enlargements