anterior captek

8/3/2019 Anterior Captek

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Instructions shown in thefollowing sequence are completed

using the rotary instrument in the

Captek/Brasseler Crown and

Bridge kit.

Purchase of this kit is not

required yet may be

helpful. Call your

laboratory, Captek or

Brasseler representative

for additional questions



One of the many benefits of Captek crowns and bridges is the

versatility that the dentist has when choosing a preparation stylethat is comfortable for him/her and appropriate for the tooth being

treated and the desired esthetic outcome of the case.

The following sequence shows a variety of margin

designs along with the possible Captek copings that

can be fabricated on each design.

A deep Chamfer(Shoulder), Modified chamfer, and a

Shoulder-Bevel will be shown.

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Captek can be cemented with the

doctors cement of choice. Proper development of resistance and

retention form is still important to

follow. Excellent research on

resistance and retention form is

available upon request through your dental laboratory or Captek.



Modified Chamfer

A basic Chamfer is astandard margin edge

design that can be

utilized for Captek

crowns where the

metal can be brought

to the edge or,

if the exit angle of

the margin is cut to a

90 degree angle, a porcelain margin

can be prescribed.

Chamfer/Shoulder



After breaking contact and facial depth cuts

with 169L, The 5856 016 Super course is usedfor gross reduction. Initial reduction is ended

at or above tissue height. The depth cuts can

also be accomplished with the 5856 016 blk.



Final Finishing of

Chamfer/Shoulder is

accomplished by placing a cordand prepping to the cord with

856 016 med.

Captek Crown with or

without a Porcelain margin

could be placed right at the

tissue or .5 to 1 mm below predictable tissue post-

preparation height.

1.

2.



With any margin design, proper consideration should be given to

biological width, tissue type, esthetic

desires, retentive form and occlusalconsiderations.



Modified Chamfer Margin: Gross

reduction with the 5856 016 Super Course. The final

margin design can be accomplished with the 878K

016 med. Shown below.



A thin cord is placed. Margin is then finalized and

refined with the 878K 016 med.

With a Modified Chamfer margin, the Captek metal should

extend to the edge and be covered with porcelain or left as an

exposed Captek collar. Margin placement should be .5 to

1mm subgingival when collar needs to be invisible to

patient.



With any margin design, reduction for anterior teeth is

necessary on three planes on the labial surface. Proper

facial reduction will result in attaining the full esthetic potential of Captek crowns and bridges.



Beveled shoulder prep…



Gross reduction is done and shoulder is placed to the tissue height

with 5856 016 SC.



Cord is placed and bevel is place sub gingival using 30006 60 016 med.

Beveled margin is ideal when using a small Captek exposed collar. Not ideal

when extending porcelain to the margin edge.

Due to the healthy tissue condition surrounding Captek restorations,

practitioners are less hesitant to place small metal bands on Captek

crowns even in the anterior. Bands or collars need to be place

appropriately in the sulcus so as to be invisible to patient.



Shoulder

Modified Chamfer

Beveled edge

All acceptable margin designs with Captek

Knife edge, not shown, is also an acceptable margin design

for Captek restorations. Consult with your Captek Lab for

further information and opinions.



Porcelain Margin

or metal to edge

is possible

Captek metal to edge

Metal collar necessary

Captek coping possibilities with each margin design

Metal to the edge with a metal band or covered with porcelain

is possible with Knife edge.

Shoulder Modified Chamfer

Beveled edge



Case Review

With Dr. John Cranham



Post operative picture. Treatment plan required placement

of full coverage restorations from tooth numbers 5-13 and

21-28

Captek crowns were chosen as restoration of choice



Occlusion should be

evaluated prior to

preparation. 1.5mmminimum of occlusal

clearance is necessary for

all PFM restorations with

full porcelain coverage

including Captek.

Rotation of teeth to be

prepared should be

noted. Rotated or tilted teeth must be

prepared accordingly

if alignment change is

desired.



Proximal slices with the

169L carbide are

accomplished quicklyand safely. The 169L

will help eliminate over

tapering of the final

preparation

Incisal reduction of 2mm

is necessary. The 330mw

carbide could be used as

a depth cutting guide.

The cutting length of the

330mw is 2.2mm.



The 5856 016 blk (super course)

can be used for depth cuts

Anterior reduction usually is

necessary in 3 distinct planes.

5856 016 blk dimensions:1.6 mm

1.25mm

1.5mm buccal reduction inthe facial incisal tapering to

.8 mm reduction at the

gingival can provide predictable results with

Captek crown and/bridges.

Consult your certified Captek

lab for their input and

opinion.



Depth cuts complete



Depth cuts (discussion)

In the posterior preparation sequence, Dr. Cranham

showed depth cuts with the 169L. The 169L is .9mm

wide. Taken to full depth, this guide, when gross

reduction is completed, should produce minimum

reduction of 1mm buccally and lingually. This is a very

conservative preparation depth and may be helpful in

situations where minimal reduction is the only option.



Gross reduction is finished with the 5856 blk.

Smoothing is accomplished with medium grit rotary

instruments.



Lingual margin reduction

can be accomplished

with a variety of rotaryinstrument shapes.

Medium or fine course

diamonds are necessaryto achieve proper

smoothness.

Lingual reduction of 1.5mm is important for

proper material thickness

and for the technician todevelop proper

functionality to the desired

restoration. It is also

required for maximumrestoration strength.



With any margin design, proper

consideration should be given to

biological width, tissue type, estheticdesires, retentive form and occlusion.



Retraction can be done with the restoring doctors

method of choice. Effective retraction will help define

margin placement, and impression accuracy.



Preparation finished



occlusal registrations

completed.



Temporization

Before



1 week post cementation

Before



Before After



3 weeks post placement



Captek is an every day choice for Esthetic, Versatile,Strong, plaque resistant crowns and bridges.

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anterior captek

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