Setting Anterior Teeth

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Setting Anterior Teeth

• Esthetics Phonetics

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Look for Symmetry

• View from anterior, occlusal
• View from many angles

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Symmetry
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Facial Asymmetry
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Smile Asymmetry
2 Left Sides Normal
2 Right Sides
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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

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Cervical necks tilt posteriorly from the central
incisor to the canine
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The greatest height of the free gingival margin
is slightly distal to the mesiodistal center of
the tooth
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Setting Mandibular Anteriors

• Lower anterior teeth incline similar to the
  maxillary teeth

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Setting Mandibular Anteriors

• Incisal edges are placed at the same level
• Even with the occlusal plane

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Setting Mandibular Anteriors

• No overbite for monoplane or lingualized setups

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Canines should be tilted more posteriorly than
other teeth, with a more prominent cervical neck
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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
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Bucco-Lingual Tilt Mandibular Anterior Teeth

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

Central
Canine
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Anterior Tooth Setup

• Check symmetry with reference lines
• Anterior teeth dont contact in centric position
• Grazing contacts in excursions

Overbite 0mm
Overjet 2mm
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No Anterior Contact in Centric
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Dentist Sets Incisal GuidanceOverjet Overbite

• Avoid too much overbite or too little overjet
• Increasing overbite steepens the angle,
  separating posterior teeth more quickly
• Increasing overjet shallows the angle, separating
  the posterior teeth less quickly

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Canine Offset

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

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

• Maxillary centrals should lightly touch vermilion
  border of lower lip for F, V sounds
• S sounds - incisal edges should approximate
  each other

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Intraoral Assessment of Anterior Teeth

• Incisal edges of maxillary incisors should
  follow line of lower lip when smiling (smile
  line)

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Follow the Smile line
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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

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Intraoral Assessment of Anterior Teeth

• Nasolabial angle 90
• If insufficient support, the vermilion border
  will be reduced

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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

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Intraoral Assessment of Anterior Teeth

• Excessive block-out of record base will push the
  lip out at the height of the vestibule,
  distorting appearance

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Lisping

• Too much horizontal overlap
• Cant approximate incisal edges
• Anterior teeth too far labially
• Spaces allow air leakage

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Lisping

• Palatal contour too constricted
• Remove wax to provide more room
• Arch form too broad
• Experiment with placement of wax

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Anterior TeethNot Identical Position of Natural
Teeth

• Slightly altered position from precursors
• Denture stability compromised
• No anchorage from roots

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Avoid the Denture Smile

• Teeth too small
• Teeth not showing
• Too straight across anterior
• Chiclets

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Central lateral incisors must begin to turn
along the curvature of the arch
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Circumference Follows Arch Shape
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Facial Support, OVD Tooth Setup Can
Dramatically Affect Appearance
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Effect of Incisor Length
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Variation of Appearance with Different Dentures
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Variation of Appearance with Different Dentures