SMILE DESIGNERS – SELF-CURING ORTHODONTIC COMPOSITE
Can be used for the Cementation of an orthodontic bracket. Materials: plastic, porcelain, metal, ceramic
Crystalline and fumed silicon dioxide
INSTRUCTIONS FOR USE:
- Prophy the enamel surfaces to bond with plain pumice. Do not use prophy pastes that contain oil or fluoride. Rinse thoroughly and dry teeth with oil and moisture-free compressed air. Do not allow the patient to rinse.
- Isolate the cleaned teeth. A clean, dry surface is desirable for a good etch.
- Dispense 1 to 2 drops of etching of solution onto the dispensing pad. Use a cotton pledget or brush and apply the etching solution with DABBING motion to the prophyed teeth to be bonded. DO NOT RUB, as rubbing breaks the exposed enamel rods, which will result in a weak bond. Continuous application of etching solution for 60 seconds will provide the most desirable etch. Fluoridated and deciduous teeth may require a longer etch period of an additional 20-30 seconds.
- RINSE thoroughly with water. At this point do not allow the patient to rinse or contaminate the enamel surface reisolate and dry the tooth thoroughly. The etched area should appear frosty white like chalk. ETCHED ENAMEL MUST NOT BE CONTAMINATED BY SALIVA. IF CONTAMINATION OCCURS, RE-ETCH FOR 20-30 SECONDS, DRY, AND REISOLATE.
Application of adhesive bracket placement
1.Apply a thin coat primer to each etched, dry tooth in the area to which the bracket is to be bonded, and the underside of each bracket base using a small disposable primer brush. This brush may be used for all teeth of a single patient, provided if not contaminated with saliva or adhesive paste.
For plastic brackets allow approximately 45 seconds prior to application of adhesive paste. This conditions the plastic brackets for a strong chemical bond with the adhesive.
- Apply a small quantity of adhesive paste to the underside of the bracket base and place it on the tooth. Contact between liquid primer and adhesive paste initiates polymerization.
- In 25 seconds, position the bracket to desired angulations and press firmly. The initial set occurs within 45 seconds. (Do not move bracket once adhesive begins to gel; this destroys the bond to the enamel.) A thin layer is essential to a strong bond. An excessive amount of adhesive will not completely polymerize. A slight excess should appear around the base as this indicates complete coverage of the bonding surface. Excess adhesive can be easily removed from the periphery of the bracket base after all brackets are in place.
4. Approximately 5 minutes after placement of the last bracket, check for lose bonds starting with the first bracket bonded. Follow removal procedures and repeat the complete bonding procedures for any loose brackets. An active archwire can be inserted 5 minutes after complete bracket placement.
Bracket & adhesive removal
1. To remove bonded bracket/base use a ligature cutter to grab the adhesive at the enamel adhesive interface and slowly peel the bracket/base of the tooth. Avoid a shearing or twisting force.
- The surface may be cleaned with a sealing instrument and polished with pumice.