Transcript
ARRANGEMENT OF ARTIFICIAL TEETH
Dr. Sajjad HussainDemonstrator
Islamic International Dental CollegeIslamabad
ANTERIOR TOOTH SETUP• MAXILLARY GUIDELINES
ON CAST– Center of incisive papilla– Line drawn along midline
of the cast through incisive papilla
– A perpendicular line drawn to above line through center of incisive papilla till land area (corresponds to canine placement)
ANTERIOR TOOTH SETUP• MAXILLARY GUIDELINES
ON WAX RIMS
• Midline on wax rim• Corners of the mouth
(canine line)• High lip line
ANTERIOR TOOTH SETUP• MANDIBULAR GUIDELINES
• Line drawn through the center of anterior ridge till land area – tells position of anterior teeth.
• Line drawn through center of posterior ridge and middle of retromolar pads – tells position of posterior teeth.
ANTERIOR TOOTH SETUP
• MAXILLARY CENTRAL INCISOR• Scoop out wax• Place the central incisor such that:
– Front : Its long axis is parallel to vertical axis– Side : It slopes labially about 15°– Occlusal plane : Its incisal edge contacts with
occlusal plane (lower wax rim).
MAXILLARY CENTRAL INCISOR
ANTERIOR TOOTH SETUP
• MAXILLARY LATERAL• Scoop out wax• Place the tooth such that when viewed from:
– Front: Long axis leans slightly mesial at incisal edge.– Side: It slopes labially about 20°.– Occlusal plane: Incisal edge is parallel but 1-2mm
short of occlusal plane.
MAXILLARY LATERAL INCISOR
ANTERIOR TOOTH SETUP
• MAXILLARY CANINE• Scoop out the wax• Place the canine such that when viewed from:
– Front : long axis parallel to vertical axis– Side : long axis parallel to vertical axis– Occlusal plane : cusp tip touches occlusal plane
MAXILLARY CANINE
ANTERIOR TOOTH SETUP
• MANDIBULAR CENTRAL INCISOR• Scoop out wax• Place tooth such that when viewed from:
– Front : long axis slightly inclines towards vertical axis– Side : slopes labially– Occlusal plane : incisal edge is 0.5-1mm above
occlusal plane
MANDIBULAR CENTRAL INCISOR
ANTERIOR TOOTH SETUP
• MANDIBULAR LATERAL INCISOR• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis inclines towards vertical axis– Side : slopes labially less than central incisor– Occlusal plane : incisal edge 0.5-1mm above
occlusal plane.
MANDIBULAR LATERAL INCISOR
ANTERIOR TOOTH SETUP
• MANDIBULAR CANINE• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis is inclines towards midline– Side : slopes lingually– Occlusal plane : cuspal tip is 0.5-1mm above
occlusal plane.
MANDIBULAR CANINE
COMPLETED MAXILLARY AND MANDIBULAR ANTERIOR TOOTH SETUP
POSTERIOR TOOTH SETUP• MAXILLARY GUIDELINES
• A line drawn is drawn on maxillary occlusal rim from the mid point of lateral incisor to the tuberosity.
• This line represents the palatal cusps of upper posterior teeth.
POSTERIOR TOOTH SETUP• MANDIBULAR GUIDELINES• A line is drawn on lower
occlusal rim corresponding to the center to the alveolar ridge that extends from cuspal tip of canine to the land area posterior to retromolar pad.
• This line represents the central groove of lower posterior teeth.
POSTERIOR TOOTH SETUP
• MAXILLARY FIRST PREMOLAR• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis parallel to vertical axis– Side : Long axis parallel towards vertical axis– Occlusal plane : buccal cusp touch occlusal plane
and palatal cusp is 1mm short of occlusal plane.
MAXILLARY FIRST PREMOLAR
POSTERIOR TOOTH SETUP
• MAXILLARY 2ND PREMOLAR• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis parallel to vertical axis– Side : long axis parallel to vertical axis– Occlusal plane : both the buccal and palatal cusps
are in contact with occlusal plane.
MAXILLARY 2ND PREMOLAR
POSTERIOR TOOTH SETUP
• MAXILLARY FIRST MOLAR• Scoop out wax• Place the tooth such that when viewed from: – Front : long axis slopes buccally– Side : long axis slopes distally– Occlusal plane : Only mesio-palatal cusp touches
occlusal plane
MAXILLARY FIRST MOLAR
POSTERIOR TOOTH SETUP
• MAXILLAY 2ND MOLAR• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis slopes buccally more steeply than first molar
– Side : long axis slopes distally more steeply than first molar– Occlusal plane : none of the cusp touches the occlusal
plane, only mesio-palatal cusp is nearest to occlusal plane.
MAXILLAY 2ND MOLAR
POSTERIOR TOOTH SETUP
• MANDIBULAR 1ST PREMOLAR• Scoop out wax• Place the tooth such that when viewed from:
– Front : long axis parallel to vertical axis– Side : long axis parallel towards vertical axis– Occlusal plane : buccal cusp 2mm above occlusal plane,
lingual cusp below occlusal plane– Occlusal contact : buccal cusp contacts the mesial
marginal ridge of upper first premolar
MANDIBULAR 1ST PREMOLAR
POSTERIOR TOOTH SETUP
• MANDIBULAR 2ND PREMOLAR• Scoop out wax• place tooth such that when viewed from :
– Front : long axis parallel to vertical axis– Side : long axis parallel towards vertical axis– Occlusal plane : both cusps about 2mm above occlusal
plane– Occlusal contact : buccal cusp contacts with fossa
between two upper premolars
MANDIBULAR 2ND PREMOLAR
POSTERIOR TOOTH SETUP
• MANDIBULAR 1ST MOLAR• Scoop out the wax• Place tooth such that when viewed from :
– Front : long axis lean lingually– Side : long axis lean mesially– Occlusal plane : all cusps higher than 2nd PM. Buccal and
distal cusps higher than other two.– Occlusal contact : mesio buccal cusp occludes in fossa
between upper 2nd PM and 1st Molar.
MANDIBULAR 1ST MOLAR
POSTERIOR TOOTH SETUP
• MANDIBULAR 2ND MOLAR• Scoop out wax• Place tooth such that when viewed from:
– Front : long axis leans more lingually– Side : long axis leans more mesially– Occlusal plane : all cusps higher than 1st molar– Occlusal contact : mesiobuccal cusp occludes in
fossa between two upper molars.
MANDIBULAR 2ND MOLAR
COMPLETED MAXILLARY AND MANDIBULAR TOOTH SETUP
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