| STICK BOND
DENTAL SOLUTION CASE
REPORTS: CASE 1 - Dr JJ Jansen van Rensburg
Lost crown and separated post |
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1.
Lost crown and separated post.
Patient attended surgery with lost crown and separated metal post still in root |
2.
Lost crown and separated post.
In order to remove the separated post a huge cavity was created in the root |
3.
Everstick posts.
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| 4. Everstick glass fibre
reinforced post.
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5. Everstick post and core.
A post and core was build up with Everstick Strips and Z100 composite |
6.
Porcelain bonded fitted crown.
Old crown cemented with chemical cured composite |
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A
42-year-old male patient attended the dental surgery with a lost
UR3. On examination it was found that a porcelain bonded crown with
post and core had fractured, leaving part of the post firmly fixed
in the root canal.
The
post and core were removed from the porcelain-bonded crown by the
dental technicians.
Everything
was explained to the patient and all treatment options were
discussed, taking into consideration: all costs involved, durability
of restoration, expected prognosis as well as the number and
duration of dental appointments needed to successfully complete the
treatment. All these criteria could be fulfilled by using a direct
Everstick glass fibre reinforced composite core build up and
cementation of the existing porcelain bonded crown.
A
small diamond round bur was used to drill a tiny hole next to the
separated metal post. Hand instruments and also small round burs in
the contra angle hand piece were use to dislodge the fractured post
and eventually remove it from the root. This resulted in a huge
cavity in the root with little tooth structure left. To prevent
future fracture of this root, a Stick Tech glass fibre post was
bonded in with a dual cured composite luting cement.
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This
treatment option had the following advantages:
1.The patients dentition was restored in one appointment.
2. The Stick Tech fibre posts bonded to the dentine walls of
the cavity with Nexus composite luting cement reinforced the
compromised root considerably.
3.The result was aesthetically acceptable as the same
porcelain bonded crown was cemented back in position
4.Cost effective for both the dentist and patient.
5.No impression taking, temporary crown construction or local
anesthetic was required.
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Treatment
An
Everstick Post 1.2mm in diameter plus additional Everstick strips
was used to construct the glass fibre reinforced composite post.
The
length of the post was measured and cut. The Everstick post and the
additional Everstick strips were pushed into the cavity and light
cured for 10sec. The complete post was then removed from the tooth
and light cured outside the mouth. The rigid post was tried in again
to check the fit. The post was wetted with Everstick resin and kept
in a light shielded orange box.
The
inside of the post cavity was etched with 37% phosphoric acid for
10sec and then thoroughly washed with water and gently dried with
air and paper points. Nexus luting dual cure composite cement was
used (according to the manufacturers instructions) to bond the
constructed post securely into the post cavity.
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The
marginal fit of the existing porcelain bonded crown was thoroughly
checked and the necessary adjustments were made to the post to
ensure a proper fit. The crown was filled with chemical cured
composite (Bisfill 2) and firmly pushed into position allowing the
composite to escape along the margins of the crown till the crown
was completely in position. The access composite was removed with a
probe all along the margins and the composite was left to cure.
It
was clearly explain to the patient that this was an emergency
appointment and that follow up checks were necessary.
The
patient was most pleased with the result and appreciated the fact
that the whole treatment was completed in an hour appointment
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| Copyright © 2005 Stick Bond Dental CC All rights reserved Revised: 14 Dec 2005 16:17:45 -0000 | |||