Periodontitis Bone Defects

The prognosis of furcation-involved teeth can be improved by traditional surgical therapy.

Regenerative periodontal therapy can be successfully used to treat 'hopeless' teeth with deep vertical defects.

The stability of new attachment gained through guided tissue regeneration (GTR) procedures cannot be maintained long term.

Poor oral hygiene is a factor that can lead to attachment loss.

The long-term effects of periodontal regeneration are still unknown.

Cigarette smoking is not a risk factor for attachment loss.

Regenerative periodontal therapy can only be used for teeth with minimal damage.

The prognosis of a tooth can be changed from 'questionable' to 'favorable' with regenerative periodontal therapy.

A one-wall defect is a type of bone defect that occurs in the interproximal space.

Radiographs are the primary method of diagnosing periodontal bone defects.

Furcation involvement is a type of periodontal bone defect.

A good knowledge of anatomy is not necessary for diagnosing periodontal bone defects.

Radiographs can provide information about the morphology of interradicular bone resorption.

Periodontal treatment always results in recession of the gingival margin after healing.

Regenerative surgical procedures are used to eradicate bone defects.

The indication for applying regenerative periodontal therapy is solely based on esthetic considerations.

Periodontal ligament cells can differentiate to osteoblasts to form new bone and to cementoblasts to form new cementum during the healing process after periodontal surgery.

Guided tissue regeneration involves the placement of a physical barrier to prevent the migration of periodontal ligament cells.

Non-resorbable membranes are no longer used in periodontal therapy.

Polytetrafluoroethylene (PTFE) membranes are effective in maxillary molar furcation problems.

Resorbable membranes are made of collagen, polylactic acid, or polyglycolic acid.

Titanium-supported non-resorbable membranes are preferred for small intrabony defects.

Collagen for bioabsorbable membranes is obtained from human sources.

A second surgical intervention is not necessary when using resorbable membranes.

Grafting materials in periodontal bony defects can be classified according to their function in healing into only two categories.

Osteoconductive grafting materials contribute to new bone formation per se.

Scaling of teeth before surgery is not necessary in all grafting procedures.

The papilla preservation method is not recommended for flap technique in periodontal surgery.

Autogenous grafts are not considered to be the gold standard in periodontal treatment.

Autogenous grafts can only be harvested from intraoral sites.

Block grafts are preferred over small bony chips in periodontal surgery.

The use of hip marrow (iliac crest marrow) is a commonly preferred approach in periodontal regenerative surgery.

Barrier membranes must be trimmed after placement.

Periodontal regeneration can only be used to treat class II furcation defects.

Root surface biomodification alone can provide more favorable treatment results than GTR alone.

Good oral hygiene and infection control are not necessary for long-term maintenance of periodontal regeneration.

Barrier membranes should allow the passage of undesirable cell types into the healing area.

Second surgery is always necessary after the initial treatment.

Treatment with flap surgery alone can provide better treatment results than treatment with flap surgery + barrier membranes + graft materials.

Periodontal regeneration has not demonstrated significant clinical improvements in intrabony defects and furcation problems.