Document ID: chunk:federal_register_of_legislation:F2018C00635:reg:8:p1
Version: federal_register_of_legislation:F2018C00635
Segment Type: reg
Provision Reference: reg 8 (pt 1/3)
Character Range: 6470–9348

8               Factors that must exist
At least one of the following factors must exist before it can be said that, on the balance of probabilities, tooth wear or death from tooth wear is connected with the circumstances of a person's relevant service:
(1)          for dental attrition only, having bruxism at the time of the clinical onset of tooth wear;
Note:  dental attrition is defined in the Schedule 1 - Dictionary.

         (2)          for dental erosion only:
(a)          consuming an average of at least 1.5 litres per day of any combination of drinks from the specified list of erosive drinks:
                (i)            for a continuous period of at least five years before the clinical onset of tooth wear; and
                (ii)         where that exposure has ceased, the clinical onset 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 symptomatic gastro-oesophageal reflux disease within the two years before the clinical onset of tooth wear;
(c)          having an eating disorder at the time of the clinical onset of tooth wear;
(d)          having alcohol use disorder at the time of the clinical onset of tooth wear;
(e)          having xerostomia for at least the one year before the clinical onset of tooth wear;
Note: xerostomia is defined in the Schedule 1 - Dictionary.
(f)           having hyperemesis gravidarum within the three months before the clinical onset 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 50 hours within the 30 days before the clinical onset of tooth wear;
(h)          taking a drug from the specified list of drugs, on average at least daily, for a continuous period of at least the one year before the clinical onset of tooth wear, and where:
                (i)            a dissolved solution of the drug is swilled around the teeth; or
                (ii)         the drug is retained in the mouth 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 2 000 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