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Setting Anterior Teeth Esthetics & Phonetics. Look for Symmetry View from anterior, occlusal View from many angles.

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Presentation on theme: "Setting Anterior Teeth Esthetics & Phonetics. Look for Symmetry View from anterior, occlusal View from many angles."— Presentation transcript:

1 Setting Anterior Teeth Esthetics & Phonetics

2 Look for Symmetry View from anterior, occlusal View from many angles

3 Symmetry Perfect Symmetry Gross Asymmetry

4 Facial Asymmetry 2 Left Sides Normal 2 Right Sides

5 Smile Asymmetry 2 Left Sides Normal 2 Right Sides

6 Setting Anterior Teeth –Incisal edges of central incisors & canines at level of the occlusal plane –Laterals placed approximately 0.5 mm above the occlusal plane

7 Cervical necks tilt posteriorly from the central incisor to the canine

8 The greatest height of the free gingival margin is slightly distal to the mesiodistal center of the tooth

9 Setting Mandibular Anteriors Lower anterior teeth incline similar to the maxillary teeth

10 Setting Mandibular Anteriors Incisal edges are placed at the same levelIncisal edges are placed at the same level Even with the occlusal planeEven with the occlusal plane

11 Setting Mandibular Anteriors No overbite for monoplane or lingualized setupsNo overbite for monoplane or lingualized setups

12 Canines should be tilted more posteriorly than other teeth, with a more prominent cervical neck

13 Bucco-Lingual Tilt Maxillary Anterior Teeth Facial surface of central is perpendicular occlusal planeFacial surface of central is perpendicular occlusal plane Neck of lateral is depressedNeck of lateral is depressed Neck of canine is prominentNeck of canine is prominent CentralCanine

14 Bucco-Lingual Tilt Mandibular Anterior Teeth Central is proclinedCentral is proclined Lateral is more uprightLateral is more upright Canine has a prominent neckCanine has a prominent neck CentralCanine

15 Anterior Tooth Setup Check symmetry with reference linesCheck symmetry with reference lines Anterior teeth dont contact in centric positionAnterior teeth dont contact in centric position Grazing contacts in excursionsGrazing contacts in excursions Overjet = 2mm Overbite = 0mm

16 No Anterior Contact in Centric Correct Insufficient Excessive

17 Dentist Sets Incisal Guidance Overjet & Overbite Avoid too much overbite or too little overjetAvoid too much overbite or too little overjet Increasing overbite steepens the angle, separating posterior teeth more quicklyIncreasing overbite steepens the angle, separating posterior teeth more quickly Increasing overjet shallows the angle, separating the posterior teeth less quicklyIncreasing overjet shallows the angle, separating the posterior teeth less quickly

18 Canine Offset Check for one half tooth offset between maxillary & mandibular teethCheck for one half tooth offset between maxillary & mandibular teeth Ensures posterior teeth have normal cusp to fossa relationship for lingualized occlusionEnsures posterior teeth have normal cusp to fossa relationship for lingualized occlusion

19 Cannine Offset Correct Insufficient Improper offset results in a space or half tooth replacement

20 Phonetic Assessment Maxillary centrals should lightly touch vermilion border of lower lip for F, V soundsMaxillary centrals should lightly touch vermilion border of lower lip for F, V sounds S sounds - incisal edges should approximate each otherS sounds - incisal edges should approximate each other

21 Intraoral Assessment of Anterior Teeth Incisal edges of maxillary incisors should follow line of lower lip when smiling (smile line)

22 Follow the Smile line

23 Placing & Moving Anterior Teeth Crown removing forceps to bodily move and tilt teethCrown removing forceps to bodily move and tilt teeth Grind record base/tooth if record base is impairing ability to position properlyGrind record base/tooth if record base is impairing ability to position properly

24 Intraoral Assessment of Anterior Teeth Nasolabial angle 90°Nasolabial angle 90° If insufficient support, the vermilion border will be reducedIf insufficient support, the vermilion border will be reduced

25 Intraoral Assessment of Anterior Teeth Junction of oral mucosa (glossy) should just be visible when lips are slightly separatedJunction of oral mucosa (glossy) should just be visible when lips are slightly separated If not visible - insufficient supportIf not visible - insufficient support Lips meet at junction of oral & transitional epitheliumLips meet at junction of oral & transitional epithelium

26 Intraoral Assessment of Anterior Teeth Excessive block-out of record base will push the lip out at the height of the vestibule, distorting appearance

27 Lisping Too much horizontal overlapToo much horizontal overlap Cant approximate incisal edgesCant approximate incisal edges Anterior teeth too far labiallyAnterior teeth too far labially Spaces allow air leakageSpaces allow air leakage

28 Lisping Palatal contour too constrictedPalatal contour too constricted Remove wax to provide more roomRemove wax to provide more room Arch form too broadArch form too broad Experiment with placement of waxExperiment with placement of wax

29 Anterior Teeth Not Identical Position of Natural Teeth Slightly altered position from precursorsSlightly altered position from precursors Denture stability compromisedDenture stability compromised No anchorage from rootsNo anchorage from roots

30 Avoid the Denture Smile Teeth too smallTeeth too small Teeth not showingTeeth not showing Too straight across anteriorToo straight across anterior ChicletsChiclets

31 Central & lateral incisors must begin to turn along the curvature of the arch

32 Circumference Follows Arch Shape

33 Facial Support, OVD & Tooth Setup Can Dramatically Affect Appearance

34 Effect of Incisor Length

35 Variation of Appearance with Different Dentures

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