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Individualized Anterior Arrangements of Trubyte ® Teeth

Face form as a guide to natural denture

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Page 1: Face form as a guide to natural denture

Individualized AnteriorArrangements of Trubyte® Teeth

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The anterior mould numbers shown in thisbooklet represent the following premiumTrubyte® tooth brands:

• Portrait® IPN® Teeth• Trublend® SLM® Teeth• Bioblend® IPN® & Acrylic Teeth• Bioform® IPN® & Acrylic Teeth

Identification of Teeth and Tooth Surfaces

Anatomy of Natural Teeth

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Face Form As A Guide To Natural Anterior Arrangement

The principle of natural aesthetic harmony between face form andmaxillary anterior tooth arrangement has been well demonstrated byextensive clinical research and application in many private dentaloffices. In essence the principle is this: There are four basic face formclassifications observed in nature. For each of these there is a workable corresponding basic anterior tooth arrangement. Similarly,modifications appearing in the basic face form may be reflected bycorresponding modifications in the anterior arrangement.

Below, the four face forms are described and illustrated. And onthe following pages, twenty-four anterior arrangements are shown -four Basic arrangements plus five modifications for each of the fourbasic forms. A suggested procedure is to classify the patient by faceform, then to specify the desired arrangement for the try-in denture.Final individualizing can be accomplished at the try-in appointment.

The Square FaceIn the Square Form, the sides of the face from thehairline to the levels of the condyles to the angles ofthe jaw are straight and parallel.

The Square Tapering FaceIn the Square Tapering Form, the sides of the headare parallel from the condyles upward. From thecondyles downward along the sides of the face, theoutline tapers into the angles of the jaw.

The Tapering FaceThe Tapering Face is widest at the hairline and nar-rowest at the angles of the jaw. The lines convergein towards the jaw.

The Ovoid FaceThe Ovoid Face is widest through the center at thelevel of the condyles. It curves upward and down-ward to form an oval outline.

Individualized AnteriorArrangementsThis brochure provides a means of visual communication with yourdental laboratory. It is based on the theory that one picture is worth athousand words...that an actual illustration of the aesthetic effect youwant in the anterior arrangement of a denture is the best guidanceyou can give the dental technician.

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Square And Modified

1BasicArrangementMould 12G Illustrated

2SoftenedArrangementMould 31F Illustrated

3VigorousArrangementMould 11G Illustrated

4AsymmetricalArrangementMould 22E Illustrated

5CrowdedArrangementMould 12E Illustrated

6SpacedArrangementMould 13E Illustrated

LABIAL ASPECT

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d Square Arrangements

A medium sized Square-type tooth set ina typical arch form. Note that the cen-trals are set practically straight across,with the laterals also having a full labialaspect.

To achieve a softening of the basic Squareform and arrangement, in this case aSquare Ovoid tooth has been used. Notethat while the centrals are predominantlySquare, the distal corners are rounded toachieve the Ovoid or softening effect. Anadditional softening of this arrangementhas been created by the inward rotation ofboth laterals toward the distal.

In this arrangement, a slightly larger andlonger Square-type central has been used.The centrals are rotated outwardly at the distals and the right lateral is depressed atthe mesial. The left lateral is rotated slightlyinward at the distal.

This arrangement utilizes a Square Taperingform tooth to achieve the desired asymmetry.The right side has been softened by depressing the lateral and canine.Conversely, the left side presents a moredominant appearance with the central andlateral set prominently, as in a typical Square-type arrangement. The left lateral is rotatedoutward at the distal to achieve a slightlystronger effect.

Normally, a crowded condition is not usually found in the Square arch becauseof its broadness and resulting adequateroom for the eruption of all teeth.However, in some instances, particularlywhere the natural teeth may be slightlylarger than normal, this does result in acrowded condition. In this arrangementthe centrals and laterals are lapped androtated to produce the effect of crowding.

In the Square arch form, spacing is morelikely to be found than the crowded condition. The spacing condition in theSquare arch obviously results from the opposite cause of crowding. The naturaltooth form is smaller than normal, and variable spaces develop between practicallyall the teeth. In this arrangement there ismild spacing between all teeth.

INCISAL ASPECT DESCRIPTION

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Tapering And Modified

7BasicArrangementMould 42F Illustrated

8SoftenedArrangementMould 44E Illustrated

9VigorousArrangementMould 43F Centrals and Lateralswith Mould 42G Canine Illustrated

10AsymmetricalArrangementMould 45F Illustrated

11CrowdedArrangementMould 42G Illustrated

12SpacedArrangementMould 42D Illustrated

LABIAL ASPECT

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d Tapering Arrangements

This Tapering arch converges to a pointmidline between the centrals. The case isdeveloped to give the typical effect of theTapering-type arrangement.

A long ratio tooth form is set in a typicalTapering alignment, with the overall effect of softness created by the rounded form of the laterals. Slight asymmetry withdominance on the left side has been introduced. The right side is slightly softened by the rotation distally of the lateral.

A slight departure from the typicalTapering alignment. This effect has beencreated by the outward rotation of bothlaterals at the distal, with slight spacingbetween the right central, lateral andcanine. Larger canines are used for amore vigorous effect.

In this arrangement, the left side is dominant. This has been accomplished byrotation of the left lateral out at the distal.Each tooth is set to a different long axis,adding to the natural appearance of thearrangement.

A typical crowded arrangement frequent-ly found in the Tapering arch. The leftcentral overlaps the right central, and thedistal of the right central overlaps themesial of the right lateral. The left lateralhas been noticeably elevated.

In the Tapering arch, spacing between theteeth will usually be found when the teethare too small in relation to the size of thearch. To simulate this effect, spacing maybe introduced to a variable degreebetween any or all teeth as indicated ordesired.

INCISAL ASPECT DESCRIPTION

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Square TModified Square

13BasicArrangementMould 22G Illustrated

14SoftenedArrangementMould 21D Illustrated

15VigorousArrangementMould 25G Illustrated

16AsymmetricalArrangementMould 75E Illustrated

17CrowdedArrangementMould 21X Illustrated

18SpacedArrangementMould 21C Illustrated

LABIAL ASPECT

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Tapering And Tapering Arrangements

A medium sized Square Tapering tooth isset in a softer arrangement than the typical Square-type arragement. The centrals are set fairly prominently, withthe laterals and canines elevated.

A Square Tapering form set to a softerarrangement. The laterals have slightlyrounded distal corners and are rotated inat the distal, thereby creating a narrowerarch effect.

A medium sized tooth in an arrangementmade more vigorous by arranging thecentrals without rotation. The left lateralis slightly rotated out at the distal, and theright lateral is depressed and elevated.This gives an overall appearance of vigoror strength.

A Square Tapering Ovoid or compositetooth form is used in this arrangement todevelop asymmetry. The right side of thearrangement is dominant, due to theprominent position of the right lateral, ascontrasted with the depressed and rotatedposition of the left lateral.

This crowded arrangement is producedby lapping the left central over the rightcentral. Right and left laterals are elevat-ed and rotated, so that the overallappearance gives a lapped or crowdedeffect.

A smaller sized tooth than normal hasbeen used in this case. Slight spacinghas been introduced between all of theteeth.

INCISAL ASPECT DESCRIPTION

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Ovoid And Modified

19BasicArrangementMould 65G Illustrated

20SoftenedArrangementMould 55F Illustrated

21VigorousArrangementMould 62G Illustrated

22AsymmetricalArrangementMould 32E Illustrated

23CrowdedArrangementMould 62D Illustrated

24SpacedArrangementMould 55D Illustrated

LABIAL ASPECT

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Ovoid Arrangements

The typical full curvature of the arch isshown in this Ovoid-type arrangement.The soft Ovoid characteristics of the toothform are quite evident in the centrals,laterals and canines, and the teeth are setto a full curve.

A softening effect of the basic Ovoidarrangement developed by using toothforms slightly less broad in their labialaspect. A Tapering Ovoid tooth form isset to the characteristic curve of theOvoid arch. The long axis of the centralsis noticeably divergent. The laterals areelevated and canines have been rotatedin slightly at the distal.

A vigorous arrangement of the basicOvoid form. Mould 62G is a wider andlonger Ovoid form and presents a bolderlabial surface. This is noticeably accentuated by the outward rotation ofthe centrals at the distal.

This arrangement utilizes a Square Ovoidform as part of the asymmetrical influence.This effect has been created by thedepression of the right lateral and canine.The left lateral is elevated, rotated andspaced at the mesial.

While the crowded condition is not toocommonly observed in the Ovoid arch,the eruption of oversized teeth in a normal or small arch will obviously produce crowding. This is generally manifest by a lapping and rotating withinthe basic curvature of the Ovoid-typeform. Characteristically, this lapping orrotating is usually minor and not as pronounced as in the Tapering arch form.

An example of an Ovoid modified form(Tapering Ovoid) in an Ovoid arch. Theteeth are slightly out of proportion, beingsmaller than normal for this size arch.This manifests itself by variable spacingbetween one or more of the teeth.

INCISAL ASPECT DESCRIPTION

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© 1988, 1996, 2000, 2004, 2006 DENTSPLY International Inc. All rights reserved.

DENTSPLY TrubyteDENTSPLY International Inc.York, PA 17405-0872www.trubyte.dentsply.com

DENTSPLY Canada161 Vinyl CourtWoodbridge, OntarioL4L 4A3

Printed in U.S.A.Form No. 3900 (08/07)

Aesthetic Considerationsat the Dress Rehearsal

Laboratory Rx forSuccessful Personalized

Dentures1. Patient and Dentist information2. Tooth shade, Anterior mould, Posterior form3. Denture base shade4. Midline, lip line at rest and/or smile line5. Width of anterior segment of the arch6. Canine position (mesial, center, distal?)7. Asymmetry/dominant side;

Posterior seal (post dam) design8. Special set-up instructions

✔ Anterior tooth arrangement number

✔ Spacing/diastema

✔ Tooth rotation

✔ Tooth inclination

✔ Posterior arrangement - cross bite/lingualized occlusion

✔ Number of posterior teeth (with space available)

1. Midline harmony2. Relation of anterior teeth to the lips

(smile line)3. Prominence of canines4. Anterior-posterior position of anterior teeth

(lip support)5. Occlusal Plane6. Overall aesthetic and phonetic factors7. Vertical dimension8. Centric/occlusal relation9. Overall patient acceptance

(and significant others!)

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