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AESTHETI-PLUS Instructions |
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Instructions |
ÆSTHETI-PLUS™*
Aesthetic Fiber Post System
INSTRUCTIONS FOR USE
GERNERAL INFORMATION
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BISCO’s patented AESTHETI-PLUS Posts are constructed from unidirectional, pre-tensed fibers bound in an epoxy resin matrix. This design produces a post with flexural strength exceeding that of metal posts but with a modulus of elasticity very close to that of dentin. The low modulus dissipates stress rather than transferring and concentrating stress in the residual root structure as with cast or prefabricated metal posts. Clinical trials demonstrate a success rate of 99.9% at 3-7 years1.
Available in an aesthetic color, BISCO’s AESTHETI-PLUS Posts are intimately bonded to the tooth structure and core composite and their passive taper respects tooth morphology and conserves tooth structure. |
CLINICAL PROCEDURES |
The tooth has been endodontically treated and filled with gutta-percha. The remaining tooth structure must be prepared according to conventional principles. PRECAUTION: Gloves must be worn when handling the AESTHETI-PLUS Posts since the post fibers may irritate the skin and the oils on the skin may affect the bond strength of the post.
1. Selection of Post Size. Posts are available in three different sizes to accommodate a veriety of teeth. The number of rings at the coronal end of the posts indicate size.
A. Size and direction of canal is determined by radiographic examination.
B. A general rule can be followed for post size selection: |
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• Post No. 1 — |
Central and lateral maxillary incisors
Buccal canals of maxillary molars
Multi-rooted teeth
Mesio-buccal and lingual canals of mandibular molars |
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• Post No. 2 — |
Central and lateral maxillary incisors
Distal canals of mandibular molars
Palatal canals of maxillary molars |
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• Post No. 3 — |
Maxillary and mandibular canine
Palatal canals of maxillary molars
Large/wide canals |
2. Canal
Preparation.
A. General rules should be followed for length of root canal preparation:
- Post length should equal the length of the crown.
- The post should be 2/3 to 3/4 the length of the root.
- A minimum of 3-5mm of gutta-percha should remain at the apex.
- Proper isolation must be used.
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B. Remove gutta-percha with a #1 or #2 Peeso Reamer, #3 Gates Glidden, or a heated endodontic plugger.
C.
Select the Pre-Shaping (end-cutting) and Finishing (side-cutting post size) drills which correspond to the selected post size..
D. Shaping the Canal:
(1) Use the Pre-Shaping drill to complete the preliminary preparation. This instrument determines the final depth to which the post will be placed. It also serves to guide the final canal preparation which will increase internal diameter by 0.5mm.
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(2)A rubber stopper or the 2 rings (a) on the shaft of the drill can be used as a guide for the length of preparation with radiographic verification. The 2 rings on the shaft are at a distance of 7.5mm and 8.5mm away from the tip of the drill.
(3) Assure the drill is always positioned in gutta-percha.
(4) Remove debris from canal with a water spray, followed by air drying.
E.
Finishing the Canal:
(1) The final preparation is made using the Finishing drill. The Finishing drill must penetrate completely to the depth established by the Pre-Shaping drill.
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(2)
The form of this instrument will create the housing for the post in a single motion. The final canal preparation allows sufficient space for the post and 30 microns for bonding material. This is a side-cutting, not an end-cutting, instrument.
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3. Post
Length Adjustment.
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A.
Try-in the post and determine the coronal length of the post according Try-in the post and determine the coronal length of the post according .
B. Remove the post from the root canal and cut with a diamond bur or diamond disc.
(WARNING: Never use pliers to cut the post since
the pressure can destroy the structure of the post.) |
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4. Post Cementation.
A. Post Space
Preparation:
(1) Apply a phosphoric acid etchant such as UNI-ETCH®* w/BAC for 15 seconds and rinse with water.
(2) Blot the canal dry with a large paper point, leaving the dentin visibly moist.
(3) Apply an adhesive such as ALL-BOND 2®*, ALL-BOND 3®* or ONE-STEP®*/ONE-STEP PLUS according to manufacturer’s instructions.
(4) Blot the canal dry with a paper point. Repeat with a new paper point until the paper point returns dry from the canal. This step is
important for removal of any pooled primers so that there is no interference in complete seating of the post.
(5) Light cure the adhesive for 10 seconds with a small light tip. Light access is crucial for light-cured adhesives.
NOTE: If using ONE-STEP/ONE-STEP PLUS, the user must use their
own discretion as to whether light will reach into the canal space. Although ONE-STEP/ONE-STEP PLUS is very light sensitive, BISCO cannot guarantee success if the appropriate amount of light has not reached the adhesive.
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B. Post Cementation**:
(1) Coat the post with the chosen adhesive according to manufacturer’s instructions. Light cure if applicable.
(2) Mix a self-cured or dual-cured cement such as POST CEMENT HI-X™* according to manufacturer’s instructions.
(3) Inject the cement into the canal starting at the apical end of the canal and withdraw the tip towards the pulp chamber.
(4) Seat the post into the canal gently and maintain firm pressure for 5-10 seconds once the post is seated.
(5) As soon as the cement has set, proceed with core build-up.
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5. Final Preparation.
A. Conventional principles of tooth preparation must be followed for optimal results.
• Preparation for final restoration must end on sound tooth structure.
• There must be 1.5mm of sound tooth structure beyond the core material.
• Positive horizontal and vertical walls should exist.
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6. Post Removal.
A FIBER POST REMOVAL KIT is available through BISCO. See FIBER POST REMOVAL TECHNIQUE description and instructions available with the FIBER POST REMOVAL KIT.
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STORAGE: Store at room temperature (20°C/68°F - 25°C/77°F). See individual component labels
for specific expiration dates.
WARRANTY: BISCO, Inc. recognizes its responsibility to replace products if proven to be defective. BISCO, Inc. does not accept liability for any damage or loss, either direct or consequential, stemming from the use of or inability to use the products as described. Before using, it is the responsibility of the user to determine the suitability of the product for its intended use. The user assumes all risk and liability in connection therewith.
CAUTION: U.S. Federal law restricts this device to sale by or on the order of a dental professional.
U.S. Patents: 5,328,372 & 4,738,616
*AESTHETI-PLUS and POST CEMENT HI-X are trademarks of BISCO, INC.
UNI-ETCH, ALL-BOND 2, ALL-BOND 3 and ONE-STEP are registered trademarks of BISCO, INC.
**For radiographic identification of ÆSTHETI-PLUS, POST CEMENT HI-X must be used.
1Töbjorner A., Karlsson S., Ödman P.A., Survival rate and failure characteristics for two post designs. J. Prosthet. Dent.
1995;73:439-44.
BISCO, INC.
1100 W. Irving Park Road
Schaumburg, IL 60193
U.S.A.
847-534-6000
1-800-BIS-DENT
www.bisco.com
CE ADMINISTRATOR
Bisico France -
Mr. Fred Picavet
L'Opera- BP. 60
13680 Lançon De Provence
France
Phone: 33-490-42-9292
Fax: 33-490-42-9261
IN-033R4
Rev. 7/08
Please
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