Cheat sheet

ADEX Dental Hygiene Cheat Sheet

Medical and Dental Assessment

12%of exam

ASA ClassificationVital SignsAntibiotic ProphylaxisDrug Interactions

Intra/Extra Oral Assessment and Charting

27%of exam

AAP StagingAAP GradingCAL MathFurcationMobility

Radiology and Imaging

15%of exam

Radiographic ErrorsAnatomic LandmarksALARABone Loss Patterns

Dental Hygiene Care Planning

13%of exam

Treatment SelectionRecall IntervalsRe-Evaluation TimingSRP vs Maintenance

Patient Care

19%of exam

Gracey CurettesGrasp and FulcrumSPTCE ScoringPatient Selection

Specialties and Applied Pharmacology

14%of exam

Quick Facts

Exam
ADEX Dental Hygiene
Administrator
ABDE (CDCA-WREB-CITA/ADEX)
CSCE items
100 points, up to 120
CSCE time
1h55m actual
SPTCE format
Typodont, not live patient
Pass score
75, Pass/Fail
Accepted
~85% of US jurisdictions
SPTCE treatment time
2 hours

ASA Physical Status

ASA I
Healthy patient
ASA II
Mild systemic disease
ASA III
Severe, not incapacitating
ASA IV
Constant threat to life

AHA Antibiotic Prophylaxis

Prosthetic heart valve
Premedication required
Prior infective endocarditis
Premedication required
MVP, no regurgitation
No premedication needed
Regimen
Amoxicillin 2g, 1 hour before

CAL Quick Math

Overgrowth subtracts, recession adds, at CEJ equals PD

Margin coronal: PD minus overlapMargin apical: PD plus recessionMargin at CEJ: CAL equals PD

AAP Stage vs Grade

Stage

  • Severity and extent
  • CAL plus bone loss
  • Tooth loss count

Grade

  • Rate of progression
  • Smoking, HbA1c modifiers
  • A slow, C rapid

How bad vs how fast

2017 AAP Staging

Stage I
CAL 1-2mm, initial
Stage II
CAL 3-4mm, moderate
Stage III
5mm+ CAL, up to 4 lost
Stage IV
5+ teeth lost or dysfunction

AAP Grade Speed

Grade A slow, B moderate, C rapid or high-risk

A: no 5-year progressionB: under 2mm in 5 yearsC: 2mm plus or risk modifier

2017 AAP Grading

Grade A
Slow progression
Grade B
Moderate progression
Grade C
Rapid, high-risk
Grade C modifier
Smoking 10+/day or HbA1c 7%+

CAL Calculation Rules

Margin at CEJ
CAL equals probing depth
Recession present
CAL equals PD plus recession
Coronal overgrowth
CAL equals PD minus overlap
CAL definition
CEJ to base of pocket

Furcation - Glickman Class

Class I
Incipient probe engagement
Class II
Partial penetration, no through
Class III
Through-through, gingiva covers
Class IV
Through-through, visibly open

Mobility - Miller Class

Class 0
Physiologic movement only
Class I
Horizontal, less than 1mm
Class II
Horizontal, 1-2mm, no vertical
Class III
Over 2mm or vertical depression

Perio Diagnosis Thresholds

Perio health
3mm or less PD, low BoP
Gingivitis
BoP 10%+, no CAL
BoP meaning
Inflammation, not diagnosis
Mucogingival concern
Keratinized tissue under 1-2mm

Horizontal vs Vertical Bone Loss

Horizontal

  • Parallel to CEJ line
  • Multiple teeth even

Vertical

  • Angular, one-sided defect
  • Deeper on one surface

Even loss vs angular defect

Radiographic Errors

Foreshortening
Excess vertical angulation
Elongation
Insufficient vertical angulation
Overlap
Wrong horizontal angulation
Cone-cut
PID off receptor center
Ghost image
Dense object, opposite side

Foreshortening vs Elongation

Foreshortening

  • Excess vertical angle
  • Image too short

Elongation

  • Too little vertical angle
  • Image too long

Too much angle vs too little

Radiographic Landmarks

Inverted Y
Nasal fossa meets sinus wall
Zygomatic process
Band over molar apices
Mental foramen
Radiolucency near premolar apex
Genial tubercles
Radiopaque ring at midline

ALARA Dose Reduction

F-speed or digital
About 60% dose cut
Rectangular collimation
Beam matches receptor size
Thyroid collar
Priority for children
Vertical bitewing
More apical bone coverage

Radiograph Appearance and Selection

Subgingival calculus
Radiopaque spike on root
Interproximal caries
Radiolucent notch below contact
New perio patient
FMX or panoramic plus bitewings
High caries-risk recall
Bitewings every 6-18 months

Prophylaxis vs SRP

Prophylaxis

  • Gingivitis only
  • No attachment loss
  • Supragingival focus

SRP

  • Periodontitis present
  • CAL and bone loss
  • Subgingival root planing

No CAL vs confirmed CAL

Treatment Selection

  1. Gingivitis, intact periodontiumProphylaxis
  2. Stage I-II periodontitisScaling and root planing
  3. Post-SRP check neededRe-evaluate in 4-6 weeks
  4. Stable Stage III-IVPerio maintenance, 3-4 months
  5. High caries-risk adultBitewings every 6-18 months
  6. Low caries-risk adultBitewings every 24-36 months
  7. Persistent BoP after therapyContinue maintenance, reassess
  8. Thin biotype with recessionRefer for soft-tissue graft

Treatment and Recall Rules

Gingivitis, no CAL
Prophylaxis
Periodontitis present
Scaling and root planing
Post-SRP re-eval
4-6 weeks later
Stable perio maintenance
Recall every 3-4 months

Gracey Working-End Map

1-2 anterior, 7-8 facial, 11-12 mesial, 13-14 distal

1-2: anteriors7-8: facial or lingual post11-12: mesial posterior13-14: distal posterior

Universal vs Gracey Curette

Universal

  • Two cutting edges
  • 90 degree blade
  • General use

Gracey

  • One cutting edge
  • 60-70 degree offset
  • Area-specific

General purpose vs site-specific

Instrument Selection

  1. Heavy subgingival calculusUltrasonic scaler
  2. Anterior surfacesGracey 1-2
  3. Posterior mesial surfacesGracey 11-12
  4. Posterior distal surfacesGracey 13-14
  5. Posterior facial-lingualGracey 7-8
  6. Supragingival calculus onlySickle scaler
  7. Unshielded pacemaker presentAvoid magnetostrictive ultrasonic
  8. Furcation entrance accessMini or after-five curette

Gracey Curette Working Ends

Gracey 1-2
Anterior teeth
Gracey 7-8
Posterior facial-lingual
Gracey 11-12
Posterior mesial
Gracey 13-14
Posterior distal

SPTCE 100-Point Split

16 detection, 66 removal, 6 complete, 12 probe

Detection: 16 pts, 4 teethRemoval: 66 pts, 12 surfacesCompleteness: 6 pts remainingProbing: 12 pts, 2 teeth

CSCE vs SPTCE

CSCE

  • Computer-based
  • 100 points, ~120 items
  • ~2 hours seat time

SPTCE

  • Typodont clinical
  • Calculus and probing scoring
  • 2-hour treatment

Cognitive exam vs psychomotor exam

SPTCE Exam-Day Decisions

  1. Receiving typodont assignment4 detection, 12 removal surfaces
  2. Calculus on one other surface-3 completeness deduction
  3. Calculus on two other surfaces-6 completeness deduction
  4. Laceration over 3mmMajor critical error
  5. Treatment time expiringNo extensions given
  6. Instrument contamination mid-examReport to Chief Examiner
  7. Probing depths needed2 teeth, 6 readings each

Grasp, Fulcrum, Angulation

Modified pen grasp
Standard scaling grasp
Intraoral fulcrum
Nearest tooth or arch
Curette angulation
60-80 degrees ideal
Ultrasonic angulation
0-15 degrees, light strokes

SPTCE 100-Point Scoring

Calculus detection
16 points, 4 maxillary teeth
Calculus removal
66 points, 12 key surfaces
Removal completeness
6 points, other surfaces
Periodontal probing
12 points, 2 teeth
Remaining calculus penalty
-3 one, -6 two+

SPTCE Fixed Assignment

Detection teeth
4 maxillary, pre-assigned
Removal quadrant
One assigned mandibular quadrant
Removal surfaces
12 key subgingival surfaces
Probing teeth
2 assigned teeth
No case selection
Assignment is fixed

SPTCE Exam Logistics

Exam medium
ABDE-provided typodonts
Treatment time
2 hours, no extensions
Instruments permitted
Curettes, sickles, ultrasonic
Sterilization rule
Clean and disinfect, not sterile
Major soft-tissue error
Laceration over 3mm

Chairside Pharmacology

Chlorhexidine 0.12%
Rinse, staining side effect
Arestin
Locally delivered minocycline
Fluoride varnish
5% NaF, high-risk children
OTC dentifrice max
About 1,100-1,500 ppm F

Infection Control Categories

Critical instrument
Heat sterilize always
Semi-critical instrument
Mirror, sterilize when possible
Spore test frequency
Weekly, per sterilizer
Waterline standard
500 CFU/mL or less

Medical Emergencies

Vasovagal syncope
Supine, legs elevated first
Adult CPR ratio
30 compressions to 2 breaths
Acute asthma wheeze
Albuterol inhaler first-line
Percutaneous injury
Wash first, then report

Common Traps

Prophylaxis is not SRP

Prophy: no attachment loss SRP: periodontitis present

PD is not always CAL

PD: margin to pocket base CAL: CEJ to pocket base

Horizontal loss is not vertical

Horizontal: parallel to CEJ line Vertical: angular one-sided defect

CSCE is not SPTCE

CSCE: computer cognitive exam SPTCE: typodont psychomotor exam

Universal curette is not Gracey

Universal: two edges, general Gracey: one edge, area-specific

BoP alone is not periodontitis

BoP: inflammation marker only Periodontitis needs CAL and bone loss

Foreshortening is not elongation

Foreshortening: too much vertical angle Elongation: too little vertical angle

Disinfected is not sterile

SPTCE: clean and disinfect only Critical items: heat sterilize always

Last Minute

  1. 1.IEO charting is heaviest domain (27%)
  2. 2.SPTCE now uses typodonts, not patients
  3. 3.Detection 16 pts, removal 66 pts
  4. 4.Missing 1 surface costs -3 points
  5. 5.Passing score 75, pass or fail
  6. 6.Gracey 11-12 mesial, 13-14 distal
  7. 7.Stage means severity, grade means risk
  8. 8.Ultrasonic angle 0-15 degrees, light strokes
  9. 9.Working curette angulation 60-80 degrees
  10. 10.SPTCE treatment window is 2 hours
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