Lin wasn’t J. Koh. J. Koh was a myth, a ghost who had graduated five years ago. But in the secret, frantic economy of the dentistry faculty, J. Koh was also a legend. Their notes were said to contain the Holy Grail: a diagram of the maxillary nerve’s path so clear that even a sleep-deprived pre-clinical student could trace it; a mnemonic for the cranial nerves that didn't feel like a tongue twister; and, most prized of all, a handwritten annotation next to a section on dental caries that simply read: “Dr. Tan always asks this.”
| Type | Use | Setting expansion | |------|-----|------------------| | Type I | Impression plaster | Minimal | | Type II | Model plaster | 0.15% | | Type III | Dental stone (study models) | 0.20% | | Type IV | Die stone (crown & bridge) | 0.10% (high strength) | nus dentistry notes