Dental Assisting Prep

DENTAL ASSISTANT PREP: PASS YOUR CDA OR RDA CERTIFICATION EXAM

The CDA exam from DANB has a 60 percent first-attempt pass rate. Candidates who fail are most often weak on tooth anatomy and numbering systems, infection control and sterilization, and dental radiography safety and technique.

TOOTH NUMBERING CHART

Universal Numbering System: permanent teeth 1 through 32, starting upper right third molar (1) ending lower right third molar (32). Upper arch right to left 1 through 16. Lower arch left to right 17 through 32. Primary teeth A through T.

Palmer Notation System: grid with numbers 1 through 8 from midline outward. Bracket orientation shows quadrant. Primary teeth A through E.

For each tooth: name, arch, quadrant, Universal number, Palmer notation, number of roots, number of cusps, and clinical notes. Interactive quiz mode included.

TRAY SETUP GUIDE

Eight most-tested procedure setups: basic examination (mirror, explorer, cotton pliers, gauze), composite restoration (plus placement instruments, matrix band, curing light, etch, bond), amalgam (plus carrier, condensers, burnishers, carvers, matrix), crown and bridge prep (plus high-speed handpiece, burs, retraction cord, impression materials), surgical extraction (sterile setup plus elevator, forceps, suture kit), periodontal (plus probe, scalers, curettes), denture try-in (bite registration, occlusal wax), pediatric stainless steel crown (plus crown scissors, crimping pliers, cement).

INFECTION CONTROL CHECKLIST

Standard precautions: PPE (gloves, mask, protective eyewear, clinical attire) for every patient contact. Single-use items: needles, anesthetic carpules, air-water tips, saliva ejectors — single patient only.

Sterilization methods: steam autoclave (121 degrees C, 15 psi, 15 to 30 minutes), dry heat (170 degrees C, 60 minutes), chemical vapor, ethylene oxide (heat-sensitive). Critical instruments (penetrate tissue or bone) must be sterilized. Semi-critical (contact mucous membranes) must be sterilized or high-level disinfected. Non-critical (intact skin) require intermediate or low-level disinfection.

Surface disinfection: spray, wipe, spray method. Allow full contact time.

1,000+ PRACTICE QUESTIONS

GENERAL CHAIRSIDE (32%): Dental anatomy, numbering systems, charting symbols, cavity classification (Black's I through VI), tray setups, dental materials, radiographic anatomy, rubber dam, matrix systems.

INFECTION CONTROL (26%): OSHA bloodborne pathogen standard, standard precautions, PPE, sterilization methods and monitoring, surface disinfection, waterline maintenance, sharps disposal.

RADIATION HEALTH AND SAFETY (25%): X-ray production (cathode, anode, kVp, mA), bisecting angle vs paralleling technique, image receptor selection, processing, radiation protection (lead apron, thyroid collar, PID), ALARA principle.

DENTAL OFFICE MANAGEMENT (17%): Patient records and HIPAA, scheduling, insurance coding (ADA CDT codes), OSHA compliance records, inventory management.

Every question includes a detailed explanation.

FREE: 5 questions per day, Universal numbering chart, basic infection control reference. No account required.

MONTHLY ($9.99/month): Full 1,000+ questions, full Tooth Numbering Chart with both systems and quiz mode, complete Tray Setup Guide, Infection Control Checklist, reference library, exam simulator, 3-day free trial.
ANNUAL ($24.99/year): Everything in Monthly. Save over 75 percent. Best value.
LIFETIME ($39.99): One payment. Permanent access.

PASS PROMISE: Complete all questions with 80% or higher average, hold active subscription for 3 months, still do not pass. We extend your access by 4 months at no charge. voltexam.com/pass-promise

DANB and CDA are registered trademarks of the Dental Assisting National Board. Not affiliated with DANB, ADA, or any state dental board.

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