Banding And Bonding Flashcards
What are the routinely banded teeth?
Maxillary and mandibular molars
Steps in banding
- Separation
- Fitting bands
- Cementation
Two main methods of separation for posterior teeth
Separating springs
Elastomeric separators
Separating springs
Exert a scissors action above and below the contact, typically opening enough space for banding in approximately 1 week (no more than 2 weeks bc inflammation)
Elastomeric separtos
Surround the contact point and squeeze teeth apart over a period of several days
No longer than 2 weeks
Steps in bonding
Cleaning
Enamel conditioning
Sealing
Bonding
Cleaning
With pumice = removes plaque and the organic pellicle that normally covers all teeth
Enamel conditioning
Moisture control
Use cheek retractors and saliva ejector to keep area dry, better environment for adhesives
Enamel pretreatment
After the operative field has been isolated, the conditioning solution (35% phosphoric acid gel) = 15 to 30 sec
Should be frosty white enamel
How much does routine etching remove?
3 to 10 microns of surface
Sealant, primers
After teeth completely dry and frosty white, thin layer of bodning agent - over the etched enamel surface
Coating may be thinned by gentle air burst for 1 or 2 seconds
Put these in the correct order of direct bonding
A. Excess bonding material is removed from around the bracket
B. For light cured materials, a cordless light now is the most convenient way to activate the adhesive bonding process
C. A small amount of the bonding agent is squeezed into the mesh on the back of the bracket and it is pressed to place on the tooth surface
D. The bracket bonded in place
E. After etching, the tooth surface has a somewhat chalky or frosted appearance if dried
E, C, A, B, D
1. After etching, the tooth surface has a somewhat chalky or frosted appearance if dried
2. A small amount of the bonding agent is squeezed into the mesh on the back of the bracket and it is pressed to place on the tooth surface
3. Excess bonding material is removed from around the bracket
4. For light cured materials, a cordless light now is the most convenient way to activate the adhesive bonding process
5. The bracket bonded in place
What should you avoid when direct bonding brackets?
Viewing teeth from the side or from above or below
Important to view with correct persepetive
Recommended bracket position central (1) max and mand
5
4
Recommended bracket position lateral (2) max and mand
4.5
4
