Ivoclar Vivadent Tetric Instrucciones De Uso

Description
Tetric® is a light-curing, radiopaque composite for restorative treatment.
Tetric cures with light in the wavelength range of 400–500 nm.
Composition of Tetric
The monomer matrix is composed of Bis-GMA, urethane dimethacrylate and
TEGDMA (total monomer content 18.0 wt%). The inorganic fillers are barium
glass, ytterbium trifluoride, silicon dioxide and mixed oxide. Additives,
initiators, stabilizers and pigments are additional contents (0.2 wt%). The
total content of fillers is 82.0 wt% or 65.0 vol%. The particle size of inorganic
fillers is between 40 nm and 7 µm.
Indication
– Class I–V restorations
– Restoration of deciduous teeth
– Extended fissure sealing
– Direct veneering
– Splinting of mobile teeth
– Blocking out of undercuts
– Repair of composite/ceramic veneers
– Inlays/onlays with extraoral post-tempering
Contraindication
The placement of Tetric restorations is contraindicated
– if a dry working field cannot be established or the prescribed application
technique cannot be applied;
– if a patient is known to be allergic to any of the ingredients of Tetric
Side effects
In rare cases, components of Tetric may lead to sensitization. The product
must not be used in such cases. To avoid possible irritations of the pulp,
areas close to the pulp should be protected with a suitable pulp/dentin
protector (apply a calcium hydroxide-based preparation to areas in close
proximity of the pulp and cover it with an adequate lining).
Interactions
Phenolic substances such as eugenol/clove oil inhibit the polymerization
of materials based on methacrylate. Consequently, the application of such
materials together with Tetric must be avoided. Discolouration may occur
in combination with cationic mouthwashes, plaque disclosing agents and
chlorhexidine.
Application
1. Shade selection
Clean the teeth prior to shade determination. The shade is selected with the
tooth still moist.
2. Isolation
Adequate relative or absolute isolation using suitable auxiliaries, such as
OptraGate® or OptraDam® Plus, is required.
3. Cavity preparation
The cavity is prepared according to the principles of the adhesive technique,
i.e. by preserving as much of the tooth structure as possible. Do not
prepare sharp internal angles or additional undercuts in caries-free areas.
The geometry of the cavity is predetermined by the dimensions of the
caries lesion or the old filling. Bevel enamel edges of anterior teeth. In the
posterior region, only the sharp enamel edges should be lightly broken or
rounded (finishing diamonds, 25–40 µm). Caries-free cervical defects are
not prepared, only cleaned with pumice or other suitable cleaning pastes
with the help of rubber polishers or rotary brushes. Subsequently, rinse the
cavity with water spray to remove all the residue and dry with water- and
oil-free air.
4. Pulp protection / Base
Do not apply a base material when using an enamel/dentin bonding agent.
Only cover very deep areas close to the pulp with a calcium hydroxide
material (e.g. ApexCal®) and subsequently use a pressure-resistant cement
(e.g. a glass ionomer cement, such as Vivaglass® Liner). Do not cover other
cavity walls, since they can be used to support the bond with an enamel/
dentin adhesive.
5. Placement of matrix / interdental wedge
Use a wrap around matrix for cavities affecting the proximal area or a
sectional matrix and wedge it.
6. Conditioning / Application of the bonding agent
Condition and apply the bonding agent according to the Instructions for Use
of the product in use. Ivoclar Vivadent recommends using the bonding agent
Syntac® or ExciTE® F (both in conjunction with phosphoric acid etching),
or Adhese® Universal (in the self-etching mode or in conjunction with
phosphoric acid etching).
7. Application of Tetric
– In order to achieve optimum results, Tetric should be applied in
increments of max. 2 mm or 1.5 mm for dentin shades and max. 4 mm
for Tetric Basic White and adapted to the cavity walls with a suitable
instrument (eg. OptraSculpt®).
– Sufficient exposure to the curing light prevents incomplete
polymerization. For the recommendations regarding exposure time and
light intensity see table 1.
– When using a metal matrix, additionally polymerize the composite
material from the vestibular or lingual/palata aspect after removing the
matrix, if no Bluephase polymerization light is used or the light probe
cannot be ideally positioned, e.g. distant to composite or diverging
scattering angle.
8. Finishing / Checking the occlusion / Polishing
After polymerization, remove excess material with suitable finishers or
fine diamonds. Remove proximal excess with diamond carbide finishers,
finishing strips or flexible finishing discs. Check the occlusion and
articulation and grind in the necessary adjustments to prevent premature
contacts or undesired articulation paths on the surface of the restoration.
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