Podcast
Questions and Answers
What is the purpose of a dental surveyor?
What is the purpose of a dental surveyor?
What does the survey line on a tooth represent?
What does the survey line on a tooth represent?
Which area of the tooth is considered an undercut area?
Which area of the tooth is considered an undercut area?
How does changing the tooth position in relation to the vertical plane affect the survey line and undercut area?
How does changing the tooth position in relation to the vertical plane affect the survey line and undercut area?
Signup and view all the answers
Which of the following is NOT a part of a dental surveyor?
Which of the following is NOT a part of a dental surveyor?
Signup and view all the answers
What is the primary function of a dental surveyor?
What is the primary function of a dental surveyor?
Signup and view all the answers
What is the purpose of the reinforcing sheath mentioned in the text?
What is the purpose of the reinforcing sheath mentioned in the text?
Signup and view all the answers
What are the three sizes of the undercut gauges described in the text?
What are the three sizes of the undercut gauges described in the text?
Signup and view all the answers
What is the purpose of the wax knife or wax trimmer mentioned in the text?
What is the purpose of the wax knife or wax trimmer mentioned in the text?
Signup and view all the answers
What is the purpose of the analyzing rod mentioned in the text?
What is the purpose of the analyzing rod mentioned in the text?
Signup and view all the answers
What is the purpose of the surveyor mentioned in the text?
What is the purpose of the surveyor mentioned in the text?
Signup and view all the answers
What is the primary reason for changing the path of insertion of a denture?
What is the primary reason for changing the path of insertion of a denture?
Signup and view all the answers
When is a rotational path of insertion used for a denture?
When is a rotational path of insertion used for a denture?
Signup and view all the answers
How can the tilt of the cast be changed to create suitable undercuts for a denture?
How can the tilt of the cast be changed to create suitable undercuts for a denture?
Signup and view all the answers
What is the preferred path of insertion for a denture?
What is the preferred path of insertion for a denture?
Signup and view all the answers
When should the path of insertion be changed to place the clasp on a stronger abutment tooth?
When should the path of insertion be changed to place the clasp on a stronger abutment tooth?
Signup and view all the answers
What is the purpose of analyzing the proximal surfaces of the abutment teeth when determining the path of insertion?
What is the purpose of analyzing the proximal surfaces of the abutment teeth when determining the path of insertion?
Signup and view all the answers
What is the purpose of tripoding the cast?
What is the purpose of tripoding the cast?
Signup and view all the answers
What is the purpose of blocking undercuts on the cast?
What is the purpose of blocking undercuts on the cast?
Signup and view all the answers
What is the next step after tripoding the cast?
What is the next step after tripoding the cast?
Signup and view all the answers
Which of the following is NOT a function of the surveyor?
Which of the following is NOT a function of the surveyor?
Signup and view all the answers
Where are the tripoding marks typically placed on the cast?
Where are the tripoding marks typically placed on the cast?
Signup and view all the answers
What is the primary purpose of guide planes on abutment teeth?
What is the primary purpose of guide planes on abutment teeth?
Signup and view all the answers
In the absence of guide planes, what situation allows for multiple paths of insertion?
In the absence of guide planes, what situation allows for multiple paths of insertion?
Signup and view all the answers
What is the recommended vertical extent for a prepared guide surface on an abutment tooth?
What is the recommended vertical extent for a prepared guide surface on an abutment tooth?
Signup and view all the answers
What is the maximum recommended thickness of enamel removal for preparing a guide surface?
What is the maximum recommended thickness of enamel removal for preparing a guide surface?
Signup and view all the answers
Where should a prepared guide surface be located on an abutment tooth?
Where should a prepared guide surface be located on an abutment tooth?
Signup and view all the answers
What is a necessary condition for the path of removal of a partial denture?
What is a necessary condition for the path of removal of a partial denture?
Signup and view all the answers
Study Notes
Dental Surveyor
- A dental surveyor is an instrument used to determine the relative parallelism of surfaces of teeth or other areas on the cast of the jaws.
- It determines the survey line of the teeth and measures tooth undercuts.
Survey Line and Undercut Areas
- The survey line is an imaginary line indicating the maximum convexity or the height of contour of the tooth.
- The area of the tooth gingival to this line is an undercut area.
- The area occlusal to this line is a non-undercut area.
Factors Determining Path of Insertion
- Guiding planes: formed by two or more parallel axial surfaces on abutment teeth, limiting the path of insertion and improving stability.
- Retentive undercuts: present on abutment teeth at the horizontal tilt.
- Esthetics: minimizing visibility of metal components.
- Health of the abutment teeth: selecting the path of insertion to prioritize stronger teeth.
Path of Removal
- The reverse of the path of insertion, referring to the direction of movement of the partial denture from fully seated position to the last contact with the teeth.
Procedures of Surveying
- Analyzing the proximal surfaces of abutment teeth using an analyzing rod.
- Determining the path of insertion using a surveyor.
- Tripoding the cast to record the final tilt and reposition the cast for manufacturing.
Surveyor Tools and Their Functions
- Analyzing rod: analyzes proximal surfaces of abutment teeth.
- Carbon marker: marks the survey line on the cast.
- Undercut gauge: locates and measures horizontal undercuts on the tooth surface.
- Wax knife or wax trimmer: removes excess wax and blocks out undesirable undercuts.
- Reinforcing sheath: maintains the carbon marker from breakage.
Uses of Surveyor
- Surveying diagnostic and master casts for proper diagnosis, designing, and treatment planning.
- Blocking undesirable undercuts on the cast.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about dental surveyors, their parts, tools, uses, path of insertion and removal, factors determining the path of insertion, and procedures of surveying in this chapter. Understand the importance and techniques involved in surveying natural teeth surfaces.