Method 1
Four-handed dentistry
Clock-face zones (operator 7–12, transfer 4–7 below the chin, assistant 2–4,
static 12–2); the single-handed transfer in four stages — working → signal →
pretransfer → midtransfer; pen, palm and palm-thumb grasps; motion economy. The point:
conserve motion, keep the operator's eyes on the illuminated field.
Source: dentalcare.com CE643; HDAS guide.
Method 2
The infection-control chain
Hand hygiene and PPE as Standard Precautions; the one-way reprocessing chain
(Session 3); handpieces heat-sterilised between every patient; waterlines logged daily.
Infection control is taught as a system, not a poster.
Source: CDC MMWR 2003;52(RR17), nine recommendation areas.
Method 3
Charting & records
FDI notation (with US Universal numbers shown alongside), the intake log, the
sterilisation log, the retake log — one rule in every room: chart it, or it did not
happen. The record is part of the care; it is also where the ADEA process of care
ends — Evaluation & Documentation.
Sources: DANB GC documentation topics; ADEA process of care (DH.2).
Method 4
Radiography — positioning, never exposure
Paralleling vs bisecting-angle positioning, ALARA discipline, apron and thyroid
collar — as a positioning drill only. The X-ray in the simulator is simulated: no real
exposure is possible or claimed.
Source: DANB Radiation Health and Safety (RHS) topics.
Method 5
Prevention in the field
Sealant application in the order that makes it stick; fluoride varnish — the
school-programme workhorse; and the screening workflow itself: screen → educate →
refer, with consent checked first and comfort treated as a skill.
Sources: the Zero Cavity workflow (public); programme research notes.
Method 6
Communication, comfort & ergonomics
Patient communication and comfort (the comfort meter's rules), plus ergonomics and
stress — the fourth hand is posture. The assistant's part in medical-emergency basics
is drilled at Station F.
Sources: CE643 health-issues material; programme methods library.