Two engraved plates of one mandibular first molar: the occlusal table with its five cusps, and the same tooth rooted in alveolar bone. We name a feature — a cusp, the CEJ, the furcation — and you click it. This is the surface and root anatomy behind charting, sealants, and instrumentation.
9 features · Learn, Board & Exam modes
Original engraved illustration © The House of Hygiene — a mandibular first molar, for study.
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This drill uses an original, engraved-style House of Hygiene illustration of a mandibular first molar — an occlusal view (buccal up, lingual down, mesial left, distal right) and a buccal view of the same tooth rooted in alveolar bone. The plates are a study aid, not a clinical specimen; the drill builds landmark recognition, not diagnosis. The House of Hygiene is not affiliated with or endorsed by the JCNDE.