surveyor and technique of surveying in removable partial denture
TRANSCRIPT
![Page 1: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/1.jpg)
Free Powerpoint Templates
1
SURVEYING IN REMOVABLE PARTIAL
DENTURES Dr Farah Ahmed
![Page 2: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/2.jpg)
Free Powerpoint Templates
2
SURVEY
• To examine as to condition,value or situation , to appraise.
• To determine the form and position of a given entity by taking linear and angular measurements
![Page 3: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/3.jpg)
Free Powerpoint Templates
3
SURVEYING
An analysis and comparison of the prominence
of intraoral contours associated with the fabrication of a dental prosthesis.
![Page 4: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/4.jpg)
Free Powerpoint Templates
4
SURVEYOR
A surveyor is essentially a parallelometer, an
instrument used to determine the relative parallelism of surfaces of teeth or other areas on a cast of the jaws.
(Stewart)
![Page 5: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/5.jpg)
Free Powerpoint Templates
5
A paralleling instrument used in the construction of a dental prosthesis to locate and delineate the contours and relative positions of abutment teeth and associated structures.
-(GPT-8)
![Page 6: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/6.jpg)
Free Powerpoint Templates
6
“Intelligent use of a dental surveyor is the best
way to prevent the occurrence of countless problems frequently related to oral rehabilitation with RPDs”
-Dr O C Applegate
![Page 7: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/7.jpg)
Free Powerpoint Templates
7
The History and Development of the Dental Surveyor (Robert L Engelmier)-JOP vol 11(march) 2002
“Reduced to its simplest terms , surveying a tooth is a mechanical method of obtaining its height of contour accurately. If a vertical plane is brought into contact with a curved surface it will touch at the greatest bulge on the convexity and nowhere else.”
–Dr A H Schmidt (1953)
![Page 8: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/8.jpg)
Free Powerpoint Templates
8
Manual Surveying
• Visual survey• Eyeballing• Dr W M Randall’s
technique for surveying.(1890)
![Page 9: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/9.jpg)
Free Powerpoint Templates
9
Early Paralleling instruments
THE CHAYES PARALLELOMETER (circa 1920)
![Page 11: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/11.jpg)
Free Powerpoint Templates
11Paralleling device used as a jig for the Grisworld Attachment System
![Page 12: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/12.jpg)
Free Powerpoint Templates
12
The First Dental Surveyor
• Dr Rudolph Hanau (1917)• Dr A J Fortunati (1918)• Dr Edward Kennedy• The Philadelphia Dental Clinic club• Noble G Wills• Weinstein and Roth(1923)
![Page 14: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/14.jpg)
Free Powerpoint Templates
14DENTAL SURVEYING APPARATUS – HANAU (1917)
![Page 15: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/15.jpg)
Free Powerpoint Templates
15
The Basic Dental Surveyor
1. Level platform2. Cast holder3. Vertical arm4. Horizontal arm5. Surveying arm6. Interchangeable
Surveying tools
![Page 16: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/16.jpg)
Free Powerpoint Templates
16
Scientific Exhibits American Dental Association (1948)
1. Ney (1923)2. Brown Maier (1925)3. Wills (1929)4. Lentz –Circa (1935)5. Lineer (1937)6. Ney (1937)
![Page 17: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/17.jpg)
Free Powerpoint Templates
17
7. Franzwa (1937)8. Ringle-Hiatt-Smith (1944)9. McKay (1944)10. Hagman (1944)11. Roach (1944)
![Page 18: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/18.jpg)
Free Powerpoint Templates
18
A. Original Ney’s Surveyor (1923)B. Current model of Ney’s Surveyor (1937)C. Modified Ney’s Surveyor (mid 1960s)
![Page 19: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/19.jpg)
Free Powerpoint Templates
19 Will’s Surveyor 1937 Recent Design Of The Will’ Surveyor
![Page 22: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/22.jpg)
Free Powerpoint Templates
22
Austenal 42 inch blockout surveyor
Austenal Micro Analyser
![Page 23: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/23.jpg)
Free Powerpoint Templates
23
PARTS OF A SURVEYORBritish dental journal, volume 189, no. 10, november 25 ,2000
1. Level platform2. Vertical arm3. Horizontal arm4. Surveying arm5. Cast holder6. Accessory tools
![Page 24: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/24.jpg)
Free Powerpoint Templates
24
Accessories/surveying tools1.Analyzing rod2.Carbon(graphite) marker3.Undercut gauges4. Wax knife5.Milling devices (with handpiece holder)
![Page 26: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/26.jpg)
Free Powerpoint Templates
26
Identifies undercut areas and to determine the
parallelism of surfaces without marking the cast.
![Page 28: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/28.jpg)
Free Powerpoint Templates
28
• moved around the tooth and along the alveolar ridge
• the tip of the marker should be level with the gingival margin.
![Page 31: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/31.jpg)
Free Powerpoint Templates
31
the shank and head should contact the cast simultaneously.
• more sophisticated, types of undercut gauge are available such as dial gauges and electronic gauges.
![Page 33: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/33.jpg)
Free Powerpoint Templates
33
• To blockout undesirable undercuts
• To prepare guiding planes
![Page 35: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/35.jpg)
Free Powerpoint Templates
35
1. Survey line2. Undercut3. Guiding planes4. Path of insertion5. Path of displacement
![Page 36: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/36.jpg)
Free Powerpoint Templates
36
SURVEY LINE
Survey line is a line drawn on a tooth/teeth of a cast by means of a surveyor for the purpose of determining the various parts a clasp/clasps.
-GPT 8
![Page 37: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/37.jpg)
Free Powerpoint Templates
37
TYPES OF SURVEY LINES
• Blatterfein classified survey lines as:
1. High survey Line2. Medium Survey Line3. Low Survey line4. Diagonal Survey Line
![Page 38: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/38.jpg)
Free Powerpoint Templates
38
•Found near the occlusal surface of a tooth often parallel to the gingival margin• It results from abnormal inclination of the teeth• lingual surfaces of the lower teeth and buccal surfaces of the upper teeth. •Wrought wire clasp used
High Survey Line
38
![Page 39: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/39.jpg)
Free Powerpoint Templates
39
•It is situated across the center of the tooth
• Exhibits a slight occlusogingival incline from the near zone to the far zone. •Aker’s or Roach clasp
Medium Survey Line
39
![Page 40: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/40.jpg)
Free Powerpoint Templates
40
•It is situated close to and parallel to the gingival margin.
• It frequently occurs as a result of marked inclination of the tooth and may also occur on conically shaped tooth. •Modified T clasp
Low Survey Line
40
![Page 41: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/41.jpg)
Free Powerpoint Templates
41
It travels diagonally from near the occlusal surface in the near zone to the gingiva in the far zone.
Diagonal Survey Line
41
Reverse circlet clasp
![Page 42: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/42.jpg)
Free Powerpoint Templates
42
Class I: •Survey line runs diagonally across the tooth surface.
•The type of clasp indicated is occlusally approaching cast clasp with terminal third engaging the undercut.
Ney’s Classification
42
![Page 43: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/43.jpg)
Free Powerpoint Templates
43
Class II: Survey line also runs
diagonally across the tooth surface but as a mirror image of Class I line. Here a gingivally approaching clasp arm is suggested.
43
.
![Page 44: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/44.jpg)
Free Powerpoint Templates
44
Class III: Survey line is parallel to
the occlusal surface and lies just below it
![Page 45: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/45.jpg)
Free Powerpoint Templates
45
Undercut
the portion of the surface of an object that is below the height of contour in relationship to the path of placement
-(GPT 8)
![Page 46: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/46.jpg)
Free Powerpoint Templates
46
Types Of Undercuts
46
Tooth Undercuts (Proximal undercuts)
Soft Tissues or bony Undercuts(on lingual side of ridge)
![Page 47: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/47.jpg)
Free Powerpoint Templates
47
• 0.25 mm - 0.01” chrome cobalt• 0.5 mm – 0.02” cast gold• 0.75 mm – 0.03” stainless steel
![Page 48: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/48.jpg)
Free Powerpoint Templates
48
Guiding Planes
vertically parallel surfaces on abutment teeth
or/and dental implant abutments oriented so as to contribute to the direction of the path of placement and removal of a removable dental prosthesis.
![Page 49: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/49.jpg)
Free Powerpoint Templates
49
Two or more parallel axial surfaces on abutment teeth which can be used to limit the path of insertion and improve the stability of a removable prosthesis. Guide surfaces may occur naturally on teeth but more commonly need to be prepared.
![Page 50: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/50.jpg)
Free Powerpoint Templates
50
PATH OF INSERTIONSurveying removable partial dentures:the importance of guiding planes and path of insertion and stability –O L Bezzon et al (JPD October 1997 vol 78 no.4 )
the specific direction in which a prosthesis is
placed on the abutment teeth or dental implant(s)
• path of withdrawal (reverse of path of insertion)• path of placement
![Page 51: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/51.jpg)
Free Powerpoint Templates
51
The RPD path of insertion and withdrawal is the
direction in which the prosthesis moves in relation to the support system when it is seated in or removed from the mouth, guided by the contact of its rigid parts with the abutments. (GPT-8)
![Page 54: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/54.jpg)
Free Powerpoint Templates
54
Two paths of insertion Rotational path of insertion
![Page 55: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/55.jpg)
Free Powerpoint Templates
55
Potential Path of Dislodgement
Regardless of the path of insertion the path of dislodgement results from masticatory function that pulls the prosthesis in a direction perpendicular to the occlusal plane.
![Page 56: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/56.jpg)
Free Powerpoint Templates
56
USES OF A SURVEYOR
1. Surveying the diagnostic cast2. Tripoding the cast3. Transferring tripod marks to another cast4. Contouring wax patterns
![Page 57: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/57.jpg)
Free Powerpoint Templates
57
5. Contouring cast restorations6. Placing internal attachments and rests7. Surveying the master cast
![Page 58: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/58.jpg)
Free Powerpoint Templates
58
Process Of Surveying
1. Preliminary visual assessment of the study cast.
2. Initial survey.3. Analysis.4. Final survey
![Page 59: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/59.jpg)
Free Powerpoint Templates
59
Visual assesment:
• Eyeballing• Form and arrangement of teeth• Potential problem areas
![Page 60: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/60.jpg)
Free Powerpoint Templates
60
Anterior tilt (‘heels up’) Posterior tilt (‘heels down’).
![Page 62: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/62.jpg)
Free Powerpoint Templates
62
Initial survey
• Cast positioned with the occlusal plane horizontal.
• The position of the survey lines.
• ‘Triangle of light’ between the marker and the cervical part of the tooth.
• Undercut gauges
![Page 63: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/63.jpg)
Free Powerpoint Templates
63
Analysis
• Occlusal plane horizontal• Consider:1. Appearance.2. Interference.3. Retention
![Page 64: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/64.jpg)
Free Powerpoint Templates
64
Appearance:
• Undercuts on the mesial aspects of the abutment teeth.
• Unsightly gap between the denture saddle and the abutment teeth gingival to the contact point.
![Page 65: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/65.jpg)
Free Powerpoint Templates
65
posterior tilt so that the analysing rod is parallel with the mesiolabial surfaces of abutment teeth.
contact of abutment tooth over the whole of the mesiolabial surfaceand a much better appearance results.
![Page 67: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/67.jpg)
Free Powerpoint Templates
67
Interferences in the maxillary arch
Maxillary tori
![Page 68: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/68.jpg)
Free Powerpoint Templates
68Exostoses and undercuts on maxillary buccal surfaces
![Page 69: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/69.jpg)
Free Powerpoint Templates
69
Interferences in the mandibular arch
Mandibular tori
![Page 71: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/71.jpg)
Free Powerpoint Templates
71
Undercuts adjacent to pear shaped pads
Bony prominences on facial surface of mand canines
![Page 73: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/73.jpg)
Free Powerpoint Templates
73
Final Survey
• The aims for optimum retention should be to provide:
• Resistance along the path of displacement.
• Resistance along the path of withdrawal
![Page 74: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/74.jpg)
Free Powerpoint Templates
74
•guide surfaces are used to provide resistance to displacement•retentive portion of the clasp needs only to resist movement along the path of withdrawal• positioned solely with reference to the red survey line.
![Page 75: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/75.jpg)
Free Powerpoint Templates
75
Gingivally approaching clasp positioned at the cross-over point of the survey lines.
•survey lines converge mesially or distally•the tip of an occlusally approaching clasp can engage the common area of undercut.
![Page 78: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/78.jpg)
Free Powerpoint Templates
78
Other Methods of Tripoding
• Pin cemented in the centre of the cast• Use of protractor fixed on surveyor• Use of dental bur in place of pin• Use of position recorder device on a surveyor• Use of plastic plate and impression of cusp tip• Device with adjustable arms• Use of plastic tray and impression• Smooth or threaded pin with sleeve• Use of inclinometer• Key and keyway system• Tripoder attachment
![Page 79: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/79.jpg)
Free Powerpoint Templates
79
Transferring tripod marks to another cast
• 3 anatomical points marked on diagnostic cast
• Same points marked on 2nd cast with analysing rod
![Page 80: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/80.jpg)
Free Powerpoint Templates
80
Contouring the wax patterns
• With cast on surveying table , tilt adjusted to original tilt.
• Guiding planes• Height of contour
![Page 81: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/81.jpg)
Free Powerpoint Templates
81
Contouring Crowns & cast restorations
• Shape of wax pattern altered during casting & finishing.
• Working cast with restorations placed at original tilt
• Cylinder stone.• Guide planes refined.
![Page 82: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/82.jpg)
Free Powerpoint Templates
82
Placing internal attachments/rests
• Intracoronal retainers.• Surveyor acts as a drill press
![Page 83: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/83.jpg)
Free Powerpoint Templates
83
OBJECTIVES OF SURVEYING
1. Path Of insertion2. Guiding planes3. Height of contour4. Dental and osseous contours5. Soft tissue contours
![Page 84: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/84.jpg)
Free Powerpoint Templates
84
6. Cast position and relation to path of insertion7. Transfer of design to master cast8. Blockout9. Develop axial contours10. Machine guiding planes11. Intracoronal retainers
![Page 85: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/85.jpg)
Free Powerpoint Templates
85
Maintenance of Surveyor• Wipe the base of surveying table and surveying platform with alcohol or acetone soaked gauge pad.• Acrylic resin powder can be sprayed for smooth gliding.• Machine oil should be applied to vertical arm before and after use, each time.
![Page 86: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/86.jpg)
Free Powerpoint Templates
86
SUMMARY
Surveying is undertaken to obtain information that will help us decide:
(1) The optimum path of insertion of the denture
which in turn is influenced by:
• the need to use guiding surfaces to achieve a pleasing appearance.
![Page 87: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/87.jpg)
Free Powerpoint Templates
87
• the need to avoid interference by the teeth or ridges with correct positioning of denture components.
• the need to use guide surfaces for retention.
(2) The design, material and position of clasps.
![Page 92: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/92.jpg)
Free Powerpoint Templates
92
1. O. L. Bezzon, M. G. C. Mattos, R. F. Ribero, Surveying removable partial dentures: the importance of guiding planes and path of insertion for stability.J Prosthet Dent 1997;78:412-18.
2. J. C. Davenport, R. M. Basker, J. R. Heath, J. P. Ralph, and P-O. GlantzSurveying.British Dental Journal 2000, vol.189(10):532-42
3. Robert L. Engelmeier The History and Development of the Dental Surveyor: Part I
Journal of Prosthodontics, Vol 11 No 1, 2002: pp 11-18.
![Page 93: Surveyor and technique of Surveying in Removable partial denture](https://reader033.vdocuments.mx/reader033/viewer/2022061507/58716e931a28ab58758b708d/html5/thumbnails/93.jpg)
Free Powerpoint Templates
93
4. Robert L. Engelmeier The History and Development of the Dental Surveyor: Part II
Journal of Prosthodontics,VOL11,No 2, 2002: pp122-30.5. Robert L. Engelmeier The History and Development of the Dental Surveyor: Part III
Journal of Prosthodontics,VOL13,No 3,2004: pp 195-202. 6. Stewart’s Clinical Removable Partial Prosthodontics,3rd Edition,
Survey and design 7. McCracken’s Removable Partial Prosthodontics,11th Ed