This document discusses factors that control the arrangement of artificial teeth in complete dentures. The four main factors are the horizontal and vertical positions of the teeth, esthetic requirements, and inclinations for occlusion. It describes anatomical landmarks that guide the placement of teeth, such as the retromolar fossae and papilla in the mandible. Correct vertical positioning provides denture stability, favorable forces, lip and cheek support, and compatibility. The arrangement is also influenced by age, sex, personality, and cosmetic preferences to provide a natural appearance.

1. TEETHTEETH
ARRANGEMENTARRANGEMENT
INDIAN DENTAL ACADEMY
Leader in continuing Dental Education
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2. Four principal factors controlling the positions of
artificial teeth in complete dentures:
Horizontal relations to the residual ridges
Vertical positions of the occlusal surfaces and
incisal edges.
Esthetic requirements
Inclinations for occlusion.
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3. HORIZONTAL POSITIONS
to provide stability to the denture bases.
to direct the masticatory forces along the long
axis.
to support lips and cheek for esthetics
to be compatible with functions of the
surrounding tissues for functions of masticaiton,
speech, swallowing and phonetics.
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4. Artificial teeth should be placed on the crest of the
residual alveolar ridge in the recently extracted
mandibular arch.
Mandibular anatomic landmarks which guide the
arrangement of teeth:
1.Reteromolar fossae.
2.Retermolar papilla
3.Reteromolar pad
4.Mandibular canine.
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5. Reteromolar fossae- triangle formed by external
oblique line and mylohyoid line. This triangle is
slightly posterior and lateral to the position of the
molar teeth.
Reteromolar papilla – small pear-shaped area of
gingival tissue situated at the base of reteromolar
pad limits the position of artificial teeth.
Reteromolar pad- pear shaped pad of tissue
locared at the distal end of the mandibular ridge.
Mandibular canine – turning point of the
mandibular arch, distal part is rotated posteriorly.
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6. Definite anatomic landmarks should be used as
guides in arranging anterior teeth:
1.Incisal papilla – guide to midline and placement of
the maxillary central incisor.
2.Midsaggital suture – guide for midline.
3.Canine lines – lines dropped on the cast down
from the canine eminence. Coincides with the
posterior surface of the canine.
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7. VERTICAL POSITIONS
Correct vertical position of the teeth should
provide-
Denture stability
Favorable forces
Support to lips and cheek
Compatibility
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8. Vertical postion of the mandibular teeth –
The occlusal surface of the last mandibular
molar is on a place approximately at the bottom
of the upper third of the retermolar pad.
Vertical position of the maxillary teeth -
is usually determined by the esthetics,
phonetics.
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9. Arrangement of teeth for esthetics
Influenced by:
Age
Sex
Personality
Cosmetic factor
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10. Influences of age:
Muscle tonus decreases with age, cheek sag-
horizontal overlap of posterior teeth increased to
prevent cheek biting.
Interincisal distance increases with age:
therefore more of the incisal portion of the
mandibular teeth is visible.
Teeth abrade with age. Central and lateral
incisor lie at same horizontal levels.
Smile of older individuals is more curved than
sharp as in for young individuals.www.indiandentalacademy.com

11. Influences of sex:
Square features are associated with males, and
rounded or oval with females.
Incisal edge of maxillary anterior teeth follows the
curve of the lower lip for females.
Distal surface of the maxillary central incisor is
rotated posteriorly for females. The mesial portion of
the lateral incisor usually overlaps the central incisor in
case of females.
In males the central incisor’s distal half overlaps the
lateral incisor.
Distal surface of female canines are rotated distally
making only mesial half visible. In males even the
distal surface is visible when viewed from fronatalwww.indiandentalacademy.com

12. Personality of the patient:
Habitual patterns and qualities of behaviour.
Profession and public appearance of the patient.
Cosmetic Factor
Patients personal interest in grooming. Teeth for an
otherwise neat, well groomed patient can expected
to be similar.
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