NBC - National Board for Certification in Dental Laboratory Technology
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CDTs

How to Become a Certified Dental Technician

Who May Become Certified?

All dental technicians who possess the required education and/or experience, have a working knowledge of the English language, and have not been found guilty of practicing dentistry illegally are eligible to become a Certified Dental Technician.

The Examinations

A candidate for certification must successfully complete three examinations, taken in any order, within a four-year period: a written comprehensive, a specialty practical, and a specialty written. The five specialties to choose from are:

  • complete dentures

  • partial dentures

  • crown and bridge

  • ceramics

  • orthodontics

The comprehensive examination has 160 multiple-choice questions and the specialty written examinations have 80 multiple-choice questions. The goal of the CDT examinations is to measure the mastery of knowledge and applied skills that are representative of the successful, professional practice of dental technology.

NBC EXAMINATION PASSING SCORES

 

As of May/June, 2006

 

 

WRITTEN EXAMINATIONS

 

No. Questions

No. Correct

on Examination

Needed to Pass

COMPREHENSIVE

160

91

RECOGNIZED GRADUATE

160

91

CERAMICS

80

50

CROWN & BRIDGE

80

46

PARTIAL  DENTURES

80

51

COMPLETE DENTURES

80

49

ORTHODONTICS

80

53

  • Notes: Passing scores are based on
    the number of questions answered
    correctly.
   
  • The new version of some exams are
    more/less difficult so the percentage
    has been changed to be equitable.
   

PRACTICAL EXAMINATIONS

Percent Points

 

Needed to Pass

 

CERAMICS

68%

CROWN & BRIDGE

69%

PARTIAL  DENTURES

77%

COMPLETE DENTURES

64%

ORTHODONTICS

69%

  • Note: Passing score are based
    on percent needed in each
    category within the specialty
    exam.
   
  • The exam items points
    have been changed.
 

 

Applications and Fees

CDT Examination Fees:

  • Comprehensive Written Exams: $190
  • Specialty Written Exams: $190
  • Practical Exam: $455*

* (This includes a $55 non-refundable one-time application fee.)

Candidates for CDT examinations must submit a completed application and payment for a specific examination. If approved, the candidate will be sent a confirmation postcard.

A list of scheduled examination dates and sites can be found on the CDT Testing Dates/Places page.

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