PCC/ CCOG / DT

Course Content and Outcome Guide for DT 204

Course Number:
DT 204
Course Title:
Dental Technology Lab IV
Credit Hours:
6
Lecture Hours:
0
Lecture/Lab Hours:
0
Lab Hours:
180
Special Fee:
 

Course Description

Skill development in the processes and procedures associated with dental crown and bridge construction. Dental inlays included. Audit available.

Addendum to Course Description

Specialty practical cases will be included with routine laboratory projects.

Intended Outcomes for the course

1. Produce finished metal castings for inlays, crowns and bridges, and frameworks for resinveneer applications.
2. Demonstrate adaptation and problem solving techniques to solve problems in occlusion, tooth shape, alignment, and periodontal conditions on specialty practical cases.

Outcome Assessment Strategies

1. Weekly waxing quizzes on specialty practical cases.
2. Completion of lab projects on specialty practical cases.
3. Students will also be assessed on speed and efficiency and lab safety compliance using specialty practical cases.
4. Attendance

Course Content (Themes, Concepts, Issues and Skills)

1. Interocclusal relationships
2. Model pouring
3. Crown waxups
4. Investing
5. Bumout procedures
6. Casting and finishing procedures
7. Framework design and construction for veneered crowns/bridges
8. Efficiency in movement, space management and time management.

Related Instruction

Computation
Hours: 10

Outcomes:

1. Produce finished metal castings for inlays, crowns and bridges, and frameworks for resinveneer applications.
2. Demonstrate adaptation and problem solving techniques to solve problems in occlusion, tooth shape, alignment, and periodontal conditions on specialty practical cases.

 

Activities:

Utilizing Direct instruction presented in DT 101 Students:
Demo ratios for mixing different gypsum materials
Demo techniques of weighing different gypsum materials
Students pour working models and study models in gypsum

Direct Instruction on:
Measurements of cusp tip placement, line angles, axial contours while fabricating wax patterns
Wax pattern design and construction
Students design and fabricate wax patterns, using proper measurements, line angles and contours

Ratios of gypsum investments to compensate for alloy expansion / shrinkage during lost wax technique
Techniques of mixing gypsum investments
Students invest various wax patterns using proper ratios & materials

Ratios of wax pattern to casting alloy materiala
Technique of measuring wax pattern mass, than calculate quantity of alloy required for casting.
Instructor query of students
Students measure wax patterns and calculate alloy required for casting

Measurement of occlusal contacts, proximal contacts, crown thickness while finishing crowns

 

 

Communication
Hours: 9

 Outcomes:

 

 1. Produce finished metal castings for inlays, crowns and bridges, and frameworks for resinveneer applications.

2. Demonstrate adaptation and problem solving techniques to solve problems in occlusion, tooth shape, alignment, and periodontal conditions on specialty practical cases.

Activities:

 

Utilizing previously presented dental communications information Students participate in:
Discuss/demo techniques of weighing & mixing of gypsum materials
Student questions
Instructor query of students
Student practice and follow-up questions

Discuss measurements of line angles, axial contours, and occlusal and proximal clearances
Discuss/demo wax pattern design and construction
Student questions
Instructor query of students
Student practice and initial follow-up question

Discuss ratios of gypsum investments
Discuss/demo techniques of mixing investments, Hygro-bath, Bench set techniques
Student questions
Instructor query of students
Student practice and follow-up questions

Discuss ratios of wax patterns to casting alloy
Discuss/demo techniques of determining wax pattern mass and calculating alloy requirements
Student questions
Instructor query of students
Student practice and follow-up questions

Discuss measurements of occlusal contacts, proximal contacts, and crown thickness while finishing castings
Discuss/demo metal crown fitting finishing and polishing procedures
Student questions
Instructor query of students
Student practice and initial follow-up questions

 

Human Relations
Hours: 31

Outcomes:

1. Produce finished metal castings for inlays, crowns and bridges, and frameworks for resinveneer applications.
2. Demonstrate adaptation and problem solving techniques to solve problems in occlusion, tooth shape, alignment, and periodontal conditions on specialty practical cases.

Activities:

 
Utilizing Direct Instruction previously learned in DT 101 students will participate in:
Student/student discussions of crown contours, comparing perceptions
Interaction among students in general area during working model pouring, wax pattern investing and casting
Student interaction during wax pattern construction
Interaction instructor /student and student/student during wax pattern construction, investing patterns and finishing crowns
Students/Instructor discussions during wax pattern and finished metal crown pre-grade