Setting Anterior Teeth - Dalhousie University

Setting Anterior Teeth - Dalhousie University

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

Symmetry Perfect Symmetry Gross Asymmetry

Facial Asymmetry 2 Left Sides Normal 2 Right Sides

Smile Asymmetry 2 Left Sides Normal

2 Right Sides 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 Cervical necks tilt posteriorly from central incisor to canine

Contour of Gingiva Expose to CEJ Contour affects appearance Cervical Necks Covered in 2nd Quadrant Cervical Neck of Canine Should be

Longer than Incisors The greatest height of the free gingival margin is slightly distal to the mesiodistal center of

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

Setting Mandibular Anteriors Incisal edges are placed at same level Even with occlusal plane Setting Mandibular Anteriors No overbite for monoplane or

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

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

Central Canine Bucco-Lingual Tilt Mandibular Anterior Teeth

Central is proclined Lateral is more upright Canine has a prominent neck Central

Canine Bucco-Lingual Tilt Mandibular Anterior Teeth View at different angles Along facial surface

Occlusal Anterior Tooth Setup Check symmetry with reference lines Anterior teeth dont contact in centric position

Grazing contacts in excursions Overbite = 0mm Overjet = 2mm No Anterior Contact

in Centric Insufficient Excessive Correct

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

Canine Offset Correct Insufficient Improper offset results in a

space or half tooth replacement Phonetic Assessment Maxillary centrals should lightly touch vermilion border of lower

lip for F, V sounds S sounds - incisal edges should approximate each other Intraoral Assessment of Anterior Teeth Incisal edges of

maxillary incisors should follow line of lower lip when smiling (smile line) Follow the Smile line

Placing & Moving Anterior Teeth Crown removing forceps to bodily move and tilt teeth Grind record base/tooth if record base is impairing

ability to position properly Intraoral Assessment of Anterior Teeth Nasolabial angle 90 If insufficient support, the vermilion border

will be reduced Intraoral Assessment of Anterior Teeth Junction of oral mucosa (glossy) should just be visible when lips are slightly

separated If not visible - insufficient support Lips meet at junction of oral & transitional epithelium Intraoral Assessment of Anterior

Teeth Excessive block-out of record base will push the lip out at the height of the vestibule, distorting appearance Lisping Too much horizontal overlap

Cant approximate incisal edges Anterior teeth too far labially

Spaces allow air leakage Lisping Palatal contour too constricted Remove wax to provide more room Arch form too broad

Experiment with placement of wax Anterior Teeth Not Identical Position of Natural Teeth Slightly altered position from precursors No anchorage from roots

Denture stability an issue Avoid the Denture Smile Teeth too small Too straight across anterior Chiclets

Teeth not showing Central & lateral incisors must begin to turn along curvature of the arch

Circumference Follows Arch Shape Facial Support, OVD & Tooth Setup Can Dramatically Affect Appearance Effect of Incisor Length

Variation of Appearance with Different Dentures Variation of Appearance with Different Dentures

Videos: Setting Anterior Teeth Set Maxillary Anterior Teeth Set Mandibular Anterior Teeth

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