The laws of physics have not changed.
Wathen
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D001696:Biomechanical Phenomena; D003793:Dental Restoration, Permanent / Q000379:methods; D006801:Humans; D009059:Mouth Diseases / Q000175:diagnosis / Q000628:therapy; D010347:Patient Care Planning; D014070:Tooth / Q000502:physiology; D014076:Tooth Diseases / Q000175:diagnosis / Q000628:therapy