Create your own awesome maps

Even on the go

with our free apps for iPhone, iPad and Android

Get Started

Already have an account?
Log In

Gingival Retraction by Mind Map: Gingival Retraction
0.0 stars - reviews range from 0 to 5

Gingival Retraction

Gingival displacement is an important procedure with fabricating indirect restorations. Gingival displacement is relatively simple and effective when dealing with healthy gingival tissues and when margins are properly placed a short distance into the sulcus. The most common technique used with gingival displacement is use of gingival retraction cords with a hemostatic medicament. Retraction cords of sufficient diameter should be used to provide adequate lateral displacement to create a mean sulcular width of 0.2 mm. Epinephrine containing re- traction cords should be avoided. Several techniques have proven to be relatively predictable, safe, and ef- ficacious. No scientific evidence has established the superiority of one tech- nique over the others, so the choice of technique depends on the presenting clinical situation and operator preference.

Criteria of Medicaments

The medicament must be effective

It should not cause significant and irreversible tissue damage

It should not produce potentially harmful systemic effects

It should result in sufficient gingival displacement

It should result in sufficient control of bleeding

It should result in sufficient control of fluid seepage

Commonly used medicamanets

8% Racemic epinephrine

Aluminum chloride

Alum (aluminum potassium sulfate)

Aluminum sulfate

Ferric Ferric sulfate

Hints

Tissue damage should be reversible and heal (clinically & hitologically) completely within 2 weeks

There is no consensus in the literature regarding criteria for evaluation the clinical performance of retraction cords

Knitted and Braided Cord are preferred by some authors

The largest cord that can be atraumati- cally placed in the sulcus should be used

The primary error made by inexperienced dentists is to use a cord that is too small in diameter

No clinical study has demonstrated the superiority of one technique over another

Before removing the cord, the cord should be soaked in water to allow it to be easily removed from the sulcus

It might be difficult because:

Attempt to make impression when the tissues are clinically inflamed

When clinically there is inadequate attached gingiva

When prepared margins are placed too deep in the sulcus

Techniques Classifications

Mechanical

Chemical

Surgical

Rotary curettage

Electrosurgical method

LASER

Combinations

Mechanical-Chemical is the popular technique (Cord + Hemostatic Solution), Single Cord Technique, Double Cord Technique, Infusion Method, The “Every Other Tooth” technique

NEW MATERIALS

Expasyl

Magic Foam Cord

Merocel retraction Merocel retraction strips

Cords design

Twisted

Knitted

Braided

References

Current concepts in gingival displacement - Dent Clin N Am 48 (2004) 433–444

GINGIVAL RETRACTION METHODS IN FIXED PROSTHODONTICS: A SYSTEMATIC REVIEW - JOURNAL OF DENTAL SCIENCES Vol. 3 Issue 1

Conventional and New Techniques in Gingival Displacement - Journal of Dentistry and Oral Biosciences2011/Volume2/ Issue3

Mindmap Author

Mahmoud Al-Johani

Twitter: @dr_aljohani

--