Dental malocclusion — DVA SoP factors

Reasonable Hypothesis (RH) — Statement of Principles No. 19 of 2019

At least one of the following factors must as a minimum exist before it can be said that a reasonable hypothesis has been raised connecting dental malocclusion or death from dental malocclusion with the circumstances of a person's relevant service:

1. (1)
   having an injury resulting in distortion of the temporomandibular joint or fracture of the maxilla or mandible before the clinical onset of dental malocclusion;
2. (2)
   having surgery involving the temporomandibular joint, maxilla or mandible before the clinical onset of dental malocclusion;
3. (3)
   having loss of one or more teeth for at least the two years before the clinical onset of dental malocclusion;
4. (4)
   having a maxillofacial disease at the time of the clinical onset of dental malocclusion;

   Note: maxillofacial disease is defined in the Schedule 1 - Dictionary.

5. (5)
   having a peripheral odontogenic fibroma or a peripheral ossifying fibroma adjacent to the affected tooth or teeth, at the time of the clinical onset of dental malocclusion;

   Note: peripheral odontogenic fibroma and peripheral ossifying fibroma are defined in the Schedule 1 - Dictionary.

6. (6)
   using a mandibular repositioning appliance for treatment of snoring or obstructive sleep apnoea for at least five hours per night, on at least five days per week, for at least the four months before the clinical onset of dental malocclusion;

   Note: mandibular repositioning appliance is defined in the Schedule 1 - Dictionary.

7. (7)
   having an ill-fitting dental restoration or orthodontic device applied to the affected tooth or teeth at the time of the clinical onset of dental malocclusion;

   Note: Examples of dental restorations and orthodontic devices include, but are not limited to, dental fillings, crowns, bridges, implants, retainers and braces.

8. (8)
   having advanced periodontitis involving the affected tooth or teeth at the time of the clinical onset of dental malocclusion;
9. (9)
   having macroglossia for at least the two years before the clinical onset of dental malocclusion;

   Note: macroglossia is defined in the Schedule 1 - Dictionary.

10. (10)
    having an injury resulting in distortion of the temporomandibular joint or fracture of the maxilla or mandible before the clinical worsening of dental malocclusion;
11. (11)
    having surgery involving the temporomandibular joint, maxilla or mandible before the clinical worsening of dental malocclusion;
12. (12)
    having loss of one or more teeth for at least the two years before the clinical worsening of dental malocclusion;
13. (13)
    having a maxillofacial disease at the time of the clinical worsening of dental malocclusion;

    Note: maxillofacial disease is defined in the Schedule 1 - Dictionary.

14. (14)
    having a peripheral odontogenic fibroma or a peripheral ossifying fibroma adjacent to the affected tooth or teeth, at the time of the clinical worsening of dental malocclusion;

    Note: peripheral odontogenic fibroma and peripheral ossifying fibroma are defined in the Schedule 1 - Dictionary.

15. (15)
    using a mandibular repositioning appliance for treatment of snoring or obstructive sleep apnoea for at least five hours per night, on at least five days per week, for at least the four months before the clinical worsening of dental malocclusion;

    Note: mandibular repositioning appliance is defined in the Schedule 1 - Dictionary.

16. (16)
    having an ill-fitting dental restoration or orthodontic device applied to the affected tooth or teeth at the time of the clinical worsening of dental malocclusion;

    Note: Examples of dental restorations and orthodontic devices include, but are not limited to, dental fillings, crowns, bridges, implants, retainers and braces.

17. (17)
    having advanced periodontitis involving the affected tooth or teeth at the time of the clinical worsening of dental malocclusion;
18. (18)
    having macroglossia for at least the two years before the clinical worsening of dental malocclusion;

    Note: macroglossia is defined in the Schedule 1 - Dictionary.

19. (19)
    inability to obtain appropriate clinical management for dental malocclusion;

Aggravation-only factors: the factors in subsections 9(10) to 9(19) apply only to material contribution to, or aggravation of, the condition where it was suffered or contracted before or during (but did not arise out of) the person’s relevant service.