Document ID: chunk:federal_register_of_legislation:F2018C00585:reg:8:p2
Version: federal_register_of_legislation:F2018C00585
Segment Type: reg
Provision Reference: reg 8 (pt 2/3)
Character Range: 8987–11812

adjacent to the affected site; or
Note: specified list of drugs is defined in the Schedule 1 - Dictionary.
(i)            breathing fumes of a substance from the specified list of acidic substances at a concentration of greater than 0.5 milligrams per cubic metre:
(i)            for a cumulative period of at least 1 000 hours before the clinical onset of tooth wear; and
(ii)         where that exposure has ceased, the clinical onset of tooth wear has occurred within six months of cessation;
Note: fumes and specified list of acidic substances are defined in the Schedule 1 - Dictionary.
(j)            vomiting or regurgitating gastric contents on at least 100 occasions within the one year before the clinical onset of tooth wear;
(4)          for dental abrasion only, breathing dust in air at a concentration of greater than five milligrams per cubic metre:
(a)          for a cumulative period of at least 10 000 hours before the clinical worsening of tooth wear; and
(b)          where that exposure has ceased, the clinical worsening of tooth wear has occurred within six months of cessation;
Note: dental abrasion and dust are defined in the Schedule 1 - Dictionary.
(5)          for dental attrition only, having bruxism at the time of the clinical worsening of tooth wear;
Note: dental attrition is defined in the Schedule 1 - Dictionary.
(6)          for dental erosion only:
(a)          consuming an average of at least 750 millilitres per day of any combination of drinks from the specified list of erosive drinks:
(i)            for a continuous period of at least two years before the clinical worsening of tooth wear; and
(ii)         where that exposure has ceased, the clinical worsening of tooth wear has occurred within one year of cessation;

            Note: dental erosion and specified list of erosive drinks are defined in the Schedule 1 - Dictionary.
(b)          having gastro-oesophageal reflux disease within the two years before the clinical worsening of tooth wear;
(c)          having an eating disorder at the time of the clinical worsening of tooth wear;
(d)          having alcohol use disorder at the time of the clinical worsening of tooth wear;
(e)          having xerostomia for at least the six months before the clinical worsening of tooth wear;
Note: xerostomia is defined in the Schedule 1 - Dictionary.
(f)           having hyperemesis gravidarum within the three months before the clinical worsening of tooth wear;
Note: hyperemesis gravidarum is defined in the Schedule 1 - Dictionary.
(g)          swimming in a swimming pool with a pH below 5.5 for a cumulative period of at least 25 hours within the 30 days before the clinical worsening of tooth wear;
(h)          taking a drug from the specified list of drugs, on average at least daily, for a continuous period of at