Assertion: tooth's enamel | /r/HasProperty | injured by attrition
Facets:
Source sentences:
text: This is taken from Nutrition and Disease: Since the days of John Hunter it has been known that when the enamel and dentine are injured by attrition or caries, teeth do not remain passive but respond to the injury by producing a reaction of the odontoblasts in the dental pulp in an area generally corresponding to the damaged tissue and resulting in a laying down of what is known as secondary dentine.