Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
2. • SurveyorSurveyor
Instrument used to determine the relativeInstrument used to determine the relative
parallelism of two or more surfaces of teeth orparallelism of two or more surfaces of teeth or
other parts of cast of dental arch.other parts of cast of dental arch.
SurveyingSurveying
• An analysis and comparison of the prominenceAn analysis and comparison of the prominence
of intra oral contours associated with theof intra oral contours associated with the
fabrication of prosthesis.fabrication of prosthesis.
www.indiandentalacademy.comwww.indiandentalacademy.com
4. PARTS OF THEPARTS OF THE
SURVEYORSURVEYOR
1. Surveying Platform1. Surveying Platform
2. Surveying table2. Surveying table
3. Vertical arm3. Vertical arm
4. Horizontal arm4. Horizontal arm
5. Surveying arm5. Surveying arm
6. Mandrel for holding6. Mandrel for holding
special tools.special tools.
7. Special tools7. Special tools1
2
3
4
5
6
7
www.indiandentalacademy.comwww.indiandentalacademy.com
6. Surveying ToolsSurveying Tools
Analysing rod:
To determine
relative
parallelism of
surfaces
on a dental cast
www.indiandentalacademy.comwww.indiandentalacademy.com
9. Wax trimmersWax trimmers
Used during
blockout
Construction
of
surveyed
restorations
www.indiandentalacademy.comwww.indiandentalacademy.com
10. PURPOSEPURPOSE
• Survey diagnostic castSurvey diagnostic cast
• Survey master castSurvey master cast
• Contour wax patterns & crownsContour wax patterns & crowns
• Place or form intracoronal retainers inPlace or form intracoronal retainers in
crownscrowns
www.indiandentalacademy.comwww.indiandentalacademy.com
11. Surveying diagnostic castSurveying diagnostic cast
• To determine the path ofTo determine the path of
placement/removal of prosthesesplacement/removal of prostheses
oror
• To identify most favourable tiltTo identify most favourable tilt
1. Guiding planes1. Guiding planes
2. Retentive undercuts2. Retentive undercuts
3. Interferences3. Interferences
4. Esthetics4. Esthetics
www.indiandentalacademy.comwww.indiandentalacademy.com
12. Color codingColor coding
Improves communicationImproves communication
between dentist & labbetween dentist & lab
There is not at present aThere is not at present a
universally accepteduniversally accepted
color coding systemcolor coding system
Red,black,blue,brownRed,black,blue,brown
www.indiandentalacademy.comwww.indiandentalacademy.com
13. RedRed
• Required actionRequired action
• Mark teeth & softMark teeth & soft
tissues to betissues to be
prepared,prepared,
recontoured,recontoured,
relievedrelieved
• Rest- solid redRest- solid red
• Diagonal lines-Diagonal lines-
recontourrecontour
• Tripod marksTripod marks
www.indiandentalacademy.comwww.indiandentalacademy.com
14. BlackBlack • DenotesDenotes
survey lines onsurvey lines on
teeth & softteeth & soft
tissuestissues
• Instructions onInstructions on
base-type ofbase-type of
toothtooth
replacement,replacement,
type of clasp,type of clasp,
depth ofdepth of
undercutundercut
www.indiandentalacademy.comwww.indiandentalacademy.com
15. BlueBlue
• Portions thatPortions that
will be made ofwill be made of
acrylic- mostlyacrylic- mostly
denture bases,denture bases,
also acrylicalso acrylic
teethteeth
www.indiandentalacademy.comwww.indiandentalacademy.com
16. BrownBrown
• All metallicAll metallic
portions-portions-
basically allbasically all
componentscomponents
www.indiandentalacademy.comwww.indiandentalacademy.com
17. Occluded diagnostic castsOccluded diagnostic casts
• Proposed restProposed rest
areas indicated onareas indicated on
cast basecast base
• Indicate in redIndicate in red
cuspal relief tocuspal relief to
give clearance forgive clearance for
restrest
www.indiandentalacademy.comwww.indiandentalacademy.com
18. Occluded diagnostic castsOccluded diagnostic casts
• Line on lingualLine on lingual
surface of uppersurface of upper
ant. teethant. teeth
• Incisal limits ofIncisal limits of
metal extensionsmetal extensions
• Gingivo-occlusalGingivo-occlusal
limits of proposedlimits of proposed
rests, IR,rests, IR,
www.indiandentalacademy.comwww.indiandentalacademy.com
19. Orientation of castOrientation of cast
• All casts to beAll casts to be
lower castslower casts
• Occlusal planeOcclusal plane
parallel to baseparallel to base
• Ant. teethAnt. teeth
toward verticaltoward vertical
membermember
www.indiandentalacademy.comwww.indiandentalacademy.com
20. • TiltingTilting is changing the position of the cast,is changing the position of the cast,
which thus changes the long axis of eachwhich thus changes the long axis of each
tooth on the cast relative to the horizontaltooth on the cast relative to the horizontal
plane.plane.
• Responsible for path of insertionResponsible for path of insertion
www.indiandentalacademy.comwww.indiandentalacademy.com
22. Retentive undercutsRetentive undercuts
• MUST BE PRESENT AT HORIZONTALMUST BE PRESENT AT HORIZONTAL
TILTTILT
Dislodging forces perpendicular to occlusal planeDislodging forces perpendicular to occlusal plane
www.indiandentalacademy.comwww.indiandentalacademy.com
23. Retentive undercutsRetentive undercuts
Changing tilt will onlyChanging tilt will only
create an illusion ofcreate an illusion of
undercutundercut
If not, create byIf not, create by
recontouringrecontouring
crownscrowns
www.indiandentalacademy.comwww.indiandentalacademy.com
24. Retentive undercutsRetentive undercuts
• Survey line delineatesSurvey line delineates
supra & infra bulgesupra & infra bulge
• Ideally, .010 inch atIdeally, .010 inch at
MB, DB line angle orMB, DB line angle or
midfacial surfacemidfacial surface
• Apical third of clinicalApical third of clinical
crowncrown
www.indiandentalacademy.comwww.indiandentalacademy.com
27. Maxillary interferencesMaxillary interferences
Facial tipping of post. teethFacial tipping of post. teeth
• High survey lineHigh survey line
• Clasp position lessClasp position less
esthetic,more forcesesthetic,more forces
• Gingival tissuesGingival tissues
undercutundercut
www.indiandentalacademy.comwww.indiandentalacademy.com
32. Path of insertionPath of insertion
• TiltTilt
determinesdetermines
thisthis
• Parallel toParallel to
vertical armvertical arm
• Recorded-Recorded-
tripodingtripoding
www.indiandentalacademy.comwww.indiandentalacademy.com
33. Path of insertionPath of insertion
www.indiandentalacademy.comwww.indiandentalacademy.com
34. TripodingTripoding
• Record tilt of castRecord tilt of cast
in horizontal planein horizontal plane
www.indiandentalacademy.comwww.indiandentalacademy.com
37. Survey lineSurvey line
• Line produced onLine produced on
a cast by surveyora cast by surveyor
by marking theby marking the
greatestgreatest
prominence ofprominence of
contour in relationcontour in relation
to the planned pathto the planned path
of insertion.of insertion.
www.indiandentalacademy.comwww.indiandentalacademy.com
38. Survey lineSurvey line
• Survey softSurvey soft
tissues also-tissues also-
usage of infrausage of infra
bulge claspsbulge clasps
• 3mm of3mm of
attached tissueattached tissue
bet. Gingivalbet. Gingival
margin & softmargin & soft
tissue surveytissue survey
lineline
www.indiandentalacademy.comwww.indiandentalacademy.com
39. Mark desired undercutMark desired undercut
• Measured withMeasured with
undercut guageundercut guage
• Marked in redMarked in red
2mm long & thin2mm long & thin
www.indiandentalacademy.comwww.indiandentalacademy.com
40. Mark rests in redMark rests in red
www.indiandentalacademy.comwww.indiandentalacademy.com
41. Mark recontouring & reliefMark recontouring & relief
• Evenly spacedEvenly spaced
diagonal linesdiagonal lines
in red-recontourin red-recontour
• Soft tissue reliefSoft tissue relief
–outlined in red–outlined in red
& accompanied& accompanied
by word reliefby word relief
www.indiandentalacademy.comwww.indiandentalacademy.com
42. Outline DB in blueOutline DB in blue
www.indiandentalacademy.comwww.indiandentalacademy.com
45. • Survey & design of diagnostic castSurvey & design of diagnostic cast
• Mouth preparations are doneMouth preparations are done
• Impression is made & master cast pouredImpression is made & master cast poured
• Master cast with designed diagnostic castMaster cast with designed diagnostic cast
sent to labsent to lab
www.indiandentalacademy.comwww.indiandentalacademy.com
46. Surveying Master castSurveying Master cast
• Master cast tripoded in same relation asMaster cast tripoded in same relation as
diagnostic castdiagnostic cast
• Design transfer made after marking surveyDesign transfer made after marking survey
lineslines
• BeadingBeading
• BlockoutBlockout
• ReliefRelief
www.indiandentalacademy.comwww.indiandentalacademy.com
47. BlockoutBlockout
• Elimination of undesirable undercut areasElimination of undesirable undercut areas
• ParallelParallel
• ShapedShaped
• ArbitraryArbitrary
• ReliefRelief
www.indiandentalacademy.comwww.indiandentalacademy.com
48. ParallelParallel
• Could be madeCould be made
with 0,2,6 degreewith 0,2,6 degree
tapered styli –tapered styli –
depends ondepends on
increasedincreased
freedom of movt.freedom of movt.
of prosthesis inof prosthesis in
functionfunction
www.indiandentalacademy.comwww.indiandentalacademy.com
49. Parallel blockoutParallel blockout
• proximal tooth surfacesproximal tooth surfaces
• beneath all minor connectorsbeneath all minor connectors
• tissue undercuts crossed by rigidtissue undercuts crossed by rigid
connectors, origin of bar claspsconnectors, origin of bar clasps
• deep inter proximal spaces to bedeep inter proximal spaces to be
covered by major connectorscovered by major connectors
• beneath bar clasp arms to gingivalbeneath bar clasp arms to gingival
crevicecrevice
www.indiandentalacademy.comwww.indiandentalacademy.com
53. PURPOSE OF SURVEYINGPURPOSE OF SURVEYING
• Survey diagnostic castSurvey diagnostic cast
• Survey master castSurvey master cast
• Contour wax patterns & crownsContour wax patterns & crowns
• Place or form intracoronal retainers inPlace or form intracoronal retainers in
crownscrowns
www.indiandentalacademy.comwww.indiandentalacademy.com
54. Contour wax patterns &Contour wax patterns &
crownscrowns
• The surveyorThe surveyor
blade is usedblade is used
as a waxas a wax
carver duringcarver during
this phase.this phase.
www.indiandentalacademy.comwww.indiandentalacademy.com