Statement of Principles concerning tooth wear (Balance of Probabilities) (No. 53 of 2017)

The Statement rests on a small number of interlocking legal and medical concepts, each defined in the instrument and in Schedule 1. The central medical concept is tooth wear, which the instrument defines by reference to loss of dental hard tissues due to intrinsic or extrinsic mechanical or chemical processes (s 6(2)(a)). That definition is refined by a clinical threshold: dentine must be exposed on at least one tooth surface and that exposure must cause either severe tooth pain or sensitivity or significant impairment of effective tooth function (s 6(2)(b)). The instrument also requires confirmation by a dental clinician using a recognised tooth wear evaluation system (s 6(2)(c)). The definition lists the processes encompassed , dental abrasion, attrition and erosion (s 6(2)(d); Schedule 1) , and expressly excludes mild enamel‑only wear and tooth substance loss due to caries or discrete trauma (s 6(2)(e)).

Causation is expressed as a set of enumerated factors that, if present and linked to relevant service, suffice to establish on the balance of probabilities that the tooth wear is connected to service (s 8). Each factor is framed with precise factual criteria. Examples: for dental erosion (only), the claimant must have consumed, on average, at least 1.5 litres per day from a specified list of erosive drinks for five continuous years before clinical onset, with a one‑year maximum lag if exposure ceased (s 8(2)(a)); or inhaled specified acidic fumes at concentrations greater than 0.5 mg/m3 for a cumulative 2 000 hours, with clinical onset within six months of cessation if exposure has ended (s 8(2)(i)). For dental attrition, bruxism at the time of clinical onset or worsening is the listed factor (s 8(1), 8(3)). The Statement also includes non‑exposure factors such as symptomatic gastro‑oesophageal reflux disease, eating disorders, alcohol use disorder, xerostomia, hyperemesis gravidarum, swimming in very acidic pools for defined durations, certain daily drug uses that involve holding a dissolved solution or retaining a drug in contact with teeth, frequent vomiting, and inability to obtain appropriate clinical management (s 8(2), 8(4), 8(5)).

Two further structural concepts are salient. First, relevant service is the linking legal concept and is defined to include eligible war service (other than operational), defence service (other than hazardous and British nuclear test defence service) under the VEA, and peacetime service under the MRCA (Schedule 1). Section 9(1) requires that the factors in s 8 be related to relevant service. Second, the instrument establishes temporal and threshold criteria that convert diffuse clinical causation hypotheses into discrete, assessable predicates (for example, specified hours, volumes, pH values, frequencies). These numeric thresholds are administrative devices to translate medical causation into determinations that can be applied consistently in claims assessment.

The Statement also includes an interaction mechanism with other Statements of Principles. If a listed factor in s 8 refers to an injury or disease covered by another Statement, the relevant factors in that other Statement apply in accordance with its terms as in force from time to time (s 10). Finally, the instrument notes ICD‑10‑AM codes that relate to the condition (s 6(3)-(4)) but emphasises that, for the purposes of this Statement, tooth wear has the meaning given in the statutory subsection (s 6(3)).

The instrument is expressly targeted at claimants and decision makers in the veterans and defence compensation systems. Section 4 states the instrument applies to claims to which s 120B of the VEA or s 339 of the MRCA applies. Practically this means veterans, former members of the Australian Defence Force, and certain serving members whose compensable claims are assessed under those parts of the VEA and MRCA will be affected when tooth wear is alleged to be connected with service.

Who pays is not set out in the Statement, but the instrument functions as a medical causation standard used by administrators and tribunals when adjudicating entitlement questions under the VEA and MRCA claim processes. The Repatriation Medical Authority is the author of the Statement (s 3). The direct decision makers using the Statement will be officials and medical officers within the Department of Veterans' Affairs and, for MRCA claims, the relevant MRCA decision making bodies. The Statement therefore affects claimants, their medical and dental advisors who must produce evidence that matches the specific factors in s 8, the medical experts who provide opinion evidence, and the administrators and reviewers who adjudicate claims under the cited statutory provisions.

Because the Statement prescribes clinical confirmation by a dental clinician using a recognised tooth wear evaluation system (s 6(2)(c)), practising dental clinicians and their record‑keeping practices are affected: their reports and the systems they use become the evidentiary gateway for entitlement. The Schedule 1 definitions of exposures and specified lists (drugs, acidic substances, erosive drinks) mean that particular consumer choices and workplace practices are enumerated as possible causal factors. Employers and occupational health units that control exposures to acidic fumes may find that workplace monitoring records, industrial hygiene measurements and maintenance of exposure logs become relevant evidence in claims. Public and private dental service access is implicated where inability to obtain appropriate clinical management is a listed factor (s 8(5)).

Finally, the instrument affects interacting decision processes. If a claimed factor refers to another disease covered by a different Statement of Principles, then the criteria in that other Statement apply (s 10). That creates cross‑dependency between Statements, which affects claimants who have comorbid conditions such as gastrointestinal disease, eating disorders or other medically recognised causes listed in other SOPs.

The Statement sets out several duties and evidentiary requirements and confers practical rights in the sense of entitlements that may be claimed if the listed conditions are satisfied. First, a claimant has the right to have the presence of tooth wear assessed according to the instrument’s definition. That assessment requires clinical confirmation by a dental clinician using a recognised tooth wear evaluation system (s 6(2)(c)). In practice this is a duty on the claimant to procure or provide a dental clinician’s report that applies a recognised evaluation system; it is a duty on treating clinicians to apply and report under such systems if they are to support claims.

Second, the Statement imposes a duty on the claimant to establish at least one of the factors in s 8 before it can be said, on the balance of probabilities, that tooth wear or death from tooth wear is connected with the circumstances of relevant service. Those factors contain precise factual requirements. For example, to rely on the erosive‑drink factor for erosion only, the claimant must show an average consumption of at least 1.5 litres per day of specified erosive drinks for a continuous period of five years prior to clinical onset, with a one‑year window if exposure ceased (s 8(2)(a)). The claimant must also show that the factor is related to the person’s relevant service (s 9(1)). That is a legal duty to establish a temporal or causal link between the listed exposure/condition and service.

Third, the Statement creates a duty to respect the timing limitations built into many factors. Several factors require that the exposure or condition be present at the time of clinical onset or worsening (for example, bruxism per s 8(1) and s 8(3); eating disorder per s 8(2)(c) and 8(4)(c); alcohol use disorder per s 8(2)(d) and 8(4)(d)). Others impose cumulative or duration thresholds (e.g., 2 000 hours of fume exposure, 50 hours in very low pH pools over 30 days, 100 vomiting/regurgitation episodes in a year). Those thresholds operate as gatekeepers for entitlement and impose on claimants the duty to produce specific factual proof.

Fourth, the instrument recognises a claimant’s right to have death from a terminal event or condition contributed to by tooth wear treated within scope (s 6(5)). That broadens the possible outcomes for claimants beyond morbidity to include causation of or contribution to death where tooth wear was a causative factor in a terminal event.

Fifth, the Statement instructs that if a s 8 factor refers to an injury or disease covered by another Statement, then the other Statement’s factors apply (s 10). This establishes a duty on decision makers and advisers to consult cross‑referenced Statements and apply them as in force when assessing the claimant’s case.

The Statement itself contains no administrative sanctions or criminal penalties. Its duties are evidentiary and procedural: it prescribes what must be shown for causation to be accepted. It assigns roles to clinicians, claimants and decision makers in establishing or adjudicating the facts listed in s 8 and in showing the required connection to relevant service (s 9).

The instrument does not create criminal offences, civil penalties or administrative fines. It is a statutory Statement of Principles setting out the medical criteria decision makers must use to determine causal connection in claims under the VEA and MRCA framework (s 3, s 4). The instrument itself contains no express enforcement or penalty provisions. Instead, its enforcement is institutional and procedural: compliance with its terms determines whether a claimant succeeds in establishing that, on the balance of probabilities, tooth wear or death from tooth wear is connected with relevant service (s 8 and s 9).

Enforcement therefore occurs via the claims assessment and review processes established under the VEA and MRCA. Decision makers will consider whether at least one of the s 8 factors exists and whether that factor is related to relevant service (s 9(1)). Where a listed factor refers to another Statement of Principles, the relevant provisions of that other Statement must be applied (s 10). The practical effect is that a claimant who cannot meet the criteria in s 8 will not have causation accepted under this Statement. Appeals and internal reviews under the VEA and MRCA frameworks may follow from an adverse decision, but those appeal routes and review mechanisms are governed by the primary statutes and not this Statement; they are not set out in the instrument itself.

Because the instrument prescribes objective thresholds and verification requirements (for example, measures such as pool pH, fume concentration in mg/m3, consumption volumes, and episode counts of vomiting/regurgitation), the administrative enforcement problem for decision makers is factual verification. Verifiable documentary evidence, clinical notes, laboratory or industrial hygiene records, dental examination reports, and contemporaneous medical records are the functional means by which the Statement’s requirements are enforced in the claims process. Where evidence is lacking, claimants risk denial on the basis that the s 8 predicates have not been established.

Finally, while the Statement does not impose penalties, it creates compliance costs. Claimants, clinicians and third parties (employers, pool operators, pharmacies) may need to produce records such as dental reports, workplace exposure monitoring data, pool maintenance logs, medication or prescription records and clinical histories of conditions such as gastro‑oesophageal reflux, eating disorders, alcohol use disorders, xerostomia and hyperemesis gravidarum.

The Statement is an instrument made under the VEA, specifically subsection 196B(3), and is directed at claims under specified sections of the VEA and MRCA. Section 3 identifies the statutory authority under the VEA, and section 4 limits the instrument’s application to claims to which s 120B of the VEA or s 339 of the MRCA applies. Those cross references define the legal space in which the Statement operates: it functions as a medical causation standard within the broader compensation and entitlements regimes governed by the VEA and MRCA.

The Statement also cross‑references the International Classification of Diseases (ICD‑10‑AM) codes (s 6(3)-(4)), noting that while tooth wear may attract ICD‑10‑AM codes K03.0, K03.1 or K03.2, the statutory meaning of tooth wear for this instrument is the one given at s 6(2). This emphasises that coding in health records is relevant but not determinative; the instrument’s textual definition governs assessment for entitlements.

Where a factor in s 8 refers to an injury or disease covered by another Statement of Principles, section 10 requires that the factors in that other Statement apply in accordance with its terms as in force from time to time. That mechanism creates a networked interaction among Repatriation Medical Authority Statements: a claimant who alleges, for example, that gastro‑oesophageal reflux disease contributed to tooth wear must have the relevant reflux‑disease Statement applied where the factor references that disease. This produces a dependency: adjudicators must identify and apply the correct complementary Statement(s) where cross‑referenced conditions are alleged.

The Statement’s thresholds and factual predicates also interact with industrial and occupational health law and record‑keeping requirements. For inhalation exposure to acidic fumes the Statement requires exposure concentration measurements (greater than 0.5 mg/m3) and cumulative hours (2 000 hours) (s 8(2)(i) and s 8(4)(i)). Those are the kinds of metrics ordinarily generated under workplace health and safety regimes and industrial hygiene practices. Similarly, the pool pH criterion (pH below 5.5 for cumulative 50 hours within 30 days) intersects with public health and pool maintenance regulation and record keeping. The Statement does not change those regulatory regimes, but it makes their records salient in compensation determinations.

Finally, the instrument interacts with clinical practice standards and record‑keeping responsibilities for dental clinicians. The requirement that tooth wear be confirmed using a recognised tooth wear evaluation system (s 6(2)(c)) means that the choice of evaluation system, clinical documentation and terminology used by clinicians will influence claims outcomes. The Statement does not itself prescribe which evaluation systems are acceptable, but it requires that a recognised system be used, thereby creating an evidentiary role for recognised clinical protocols.

The compilation indicates the Statement was originally registered as Statement of Principles concerning tooth wear (No. 53 of 2017), registered 21 August 2017 and commencing 18 September 2017 (endnote 3). It was later amended by Amendment Statement of Principles concerning tooth wear (No. 86 of 2018), registered 27 August 2018 and commencing 24 September 2018 (endnote 3). The amendment history table in the endnotes records that sections 8(2)(j) and 8(4)(j) were added by No. 86 of 2018 (endnote 4). Those subsections are the provisions dealing with vomiting or regurgitating gastric contents on at least 100 occasions within the one year before clinical onset or clinical worsening of tooth wear (see s 8(2)(j) and s 8(4)(j)). The endnotes also provide the usual compilation disclaimers regarding uncommenced amendments, modifications, and self‑repealing provisions.

The instrument as compiled shows the text as in force on the compilation date, 24 September 2018, and includes the amendment that added the vomiting/regurgitation criteria. The endnotes indicate how and when the instrument and its amendment came into force, but no other amendments or legislative changes are recorded in the present compilation. The endnotes also include an amendment‑level table that identifies the specific provisions affected by the No. 86 of 2018 amendment, which enables a reader to track the discrete change in the text.

From an operational perspective, the amendment history matters because the addition of vomiting/regurgitation as a listed factor alters the universe of acceptable causal pathways claimants may advance. Prior to the 2018 amendment, claimants relying on frequent vomiting or regurgitation as a cause of erosion would have had to rely on other listed factors or on non‑specified medical opinion. After the amendment, a claimant can rely on a specific numeric predicate (at least 100 occasions in a year), which will be applied as a discrete factor under s 8(2)(j) or s 8(4)(j) depending on whether the issue is clinical onset or clinical worsening. The amendment therefore tightens the Statement by both enumerating and quantifying that causal path.

The endnotes also make plain that the compilation does not show uncommenced amendments or external modifications and that additional details about amendments can be found on the Legislation Register. Any further amendments after the compilation date would be recorded on the Register and in later compilations. For practitioners advising claimants or adjudicators, tracking subsequent amendments is therefore necessary because new factors, deleted factors, or altered thresholds could materially change the evidentiary requirements for establishing causation.

The compiled instrument and its endnotes do not record any case law or litigation specifically about this Statement of Principles. The text contains citations to the primary statutory authority and to ICD coding but does not refer to judicial decisions or tribunal determinations. The endnotes supply legislative history and amendment entries, but there is no mention in the compilation of any appeals, judicial review proceedings or tribunal interpretations that have considered or construed the Statement.

That absence in the compiled text means legal practitioners must treat the Statement primarily as an administrative medical standard determined by the Repatriation Medical Authority rather than as a judicially glossed rule. Where disputes arise in particular claims about the interpretation of a numeric threshold, the sufficiency of evidence to meet a listed factor, or the meaning of clinical phrases such as "recognised tooth wear evaluation system" or "severe tooth pain or sensitivity," those matters would proceed through the normal statutory review and appeal pathways under the VEA or MRCA. Any tribunal or court decisions interpreting these provisions would be found in targeted searches of administrative law and veterans’ law case reports and tribunal decisions, not in the Statement’s compilation.

Until such judicial or tribunal interpretation appears in published decisions, the instrument’s text and the Repatriation Medical Authority’s explanatory materials will be the primary guides to interpretation. Practitioners should therefore be careful to document factual predicates precisely to match the instrument’s stated numerical and temporal thresholds and should expect contested cases to turn on the sufficiency and quality of evidence rather than on ambiguity in the Statement’s language, since the instrument itself tends toward specificity.

Because no litigation history is recorded in the compilation, the practical implication for advisers is that there is limited precedent that interprets how strictly tribunals or decision makers will apply thresholds such as "1.5 litres per day" or "2 000 hours" of exposure. That increases the evidentiary burden on claimants to assemble robust contemporaneous records and expert evidence in support of any claimed factor in s 8.

The Statement contains several features that can produce pitfalls for claimants and advisers if they are not carefully navigated.

• Clinical threshold is higher than mere wear: The statutory definition requires dentine exposure on at least one tooth surface that causes severe pain or sensitivity or significant impairment of effective tooth function (s 6(2)(b)). Mild wear confined to enamel is expressly excluded (s 6(2)(e)(i)). A claimant with enamel‑only wear or minimal symptoms will not meet the threshold even if dental erosion is present.

• Clinical confirmation and recognised systems: Tooth wear must be "confirmed by a dental clinician using a recognised tooth wear evaluation system" (s 6(2)(c)). The Statement does not list which evaluation systems qualify. Failure to use or identify a recognised system in the dental report may undermine a claim. Practitioners should ensure the dental report identifies the evaluation system used and explains how the clinical findings meet the Statement’s definition.

• Numeric and temporal gates: Many factors require specified cumulative durations, volumes or counts: 1.5 litres per day of specified erosive drinks for five continuous years (s 8(2)(a), 8(4)(a)); 2 000 hours of fume exposure at >0.5 mg/m3 (s 8(2)(i), 8(4)(i)); swimming in pools with pH <5.5 for at least 50 hours within 30 days (s 8(2)(g), 8(4)(g)); 100 vomiting/regurgitation occasions in a year (s 8(2)(j), 8(4)(j)). These bright lines simplify adjudication but exclude plausible causal histories that fall short of the numeric thresholds.

• Windows after cessation: For some exposures, clinical onset or worsening must occur within a defined interval after cessation: for erosive drinks, onset/worsening must occur within one year of cessation (s 8(2)(a), 8(4)(a)); for fumes the onset/worsening must occur within six months of cessation (s 8(2)(i), 8(4)(i)). Where exposures ceased earlier, even long prior exposures may not satisfy the instrument.

• Relation to relevant service required: Every factor in s 8 must be related to relevant service (s 9(1)). The instrument does not explain how this link is to be established; claimants must therefore assemble service records, deployment histories or workplace evidence showing that the exposure or condition was connected to their relevant service. For subsections 8(3)-8(5), an additional limitation applies: they only address material contribution or aggravation where tooth wear was suffered or contracted before or during, but did not arise out of, relevant service (s 9(2)). That means those particular subsections do not help where tooth wear arose out of the service itself.

• Specified lists narrow causation paths: The instrument lists particular acidic substances (hydrochloric, hydrofluoric, nitric, phosphoric, sulphuric acids), specific drugs (aspirin powder, chewable aspirin, chewable hydrochloric acid tablets, chewable Vitamin C), and enumerated erosive drinks (including alcopops, beverages pH <4.0, carbonated soft drinks, wine, certain teas and juices) (Schedule 1). Exposures to other acids, drugs or drinks not on the lists are not captured by the enumerated factors and so require alternative causal arguments.

• Evidence collection challenges: Many predicates will require contemporaneous and technical records. Verifying pool pH <5.5 and the cumulative 50 hours in a 30 day window requires pool maintenance or municipal records. Verifying workplace fume concentrations and cumulative hours requires industrial hygiene monitoring or employer records. Verifying 1.5 litres per day over five years requires consumption records that are rarely contemporaneous. Establishing 100 vomiting events in a year requires detailed medical notes or other corroborative evidence. Absent those records, tribunals or decision makers may conclude the s 8 predicates are not established.

• Interaction with other Statements: When a s 8 factor refers to an injury or disease covered by another Statement, the factors in that Statement must be applied (s 10). Failure to identify and apply the correct complementary Statement may produce misdirected reasoning.

• No penalties but high evidentiary rigour: The Statement creates no penalties for false claims in the instrument itself, but adversarial adjudication will demand precise evidence. Weak or vague evidence is likely to result in rejection on causation grounds.

Practitioners must therefore pay attention to the precise wording of the predicates, the timing constraints, the lists in Schedule 1, and the requirement for clinical confirmation by a dental clinician using a recognised evaluation system. Failing to match the instrument’s specificity is the commonest procedural risk.

For claimants, clinicians and advisers preparing or defending claims under this Statement, a compliance checklist tied to the instrument’s text reduces the risk of rejection.

1. Confirm the statutory pathway. Ensure the claim is one to which s 120B of the VEA or s 339 of the MRCA applies, because the Statement applies only to those claims (s 4). Identify the decision maker and the procedural pathway for the particular claim (VEA or MRCA).

2. Obtain a dental clinician report using a recognised tooth wear evaluation system. The reporting clinician should explicitly state the evaluation system used and document dentine exposure on at least one tooth surface and whether that exposure causes severe tooth pain or sensitivity or significant impairment of effective tooth function, as required by s 6(2)(b)-(c). The report should record the clinical onset date and whether there has been clinical worsening, to align with s 8 timing predicates.

3. Match the clinical findings to the instrument’s categories. Identify whether the presentation is predominantly attrition, erosion or abrasion (Schedule 1 definitions). For attrition, prepare evidence that bruxism was present at the time of clinical onset or worsening (s 8(1), 8(3)). For erosion, gather the evidence specified by s 8(2) and 8(4).

4. Assemble exposure and medical evidence for the relevant s 8 factor(s):

   • Erosive drinks: contemporaneous diaries, purchase records, family statements and corroboration showing an average of at least 1.5 litres per day of items from the specified list for five continuous years prior to clinical onset or worsening (s 8(2)(a), 8(4)(a)); where exposure ceased, document that onset/worsening occurred within one year of cessation.
   • Gastro‑oesophageal reflux, eating disorder, alcohol use disorder, xerostomia, hyperemesis gravidarum: obtain medical records, diagnoses, treatment notes and pharmacy records that establish the condition and its timing relative to clinical onset/worsening (s 8(2)(b)-(f), 8(4)(b)-(f)).
   • Swimming pools: secure pool maintenance logs, municipal health records or employer records that show pool pH values and occupancy/use timings to establish a cumulative period of at least 50 hours in a 30 day window at pH <5.5 (s 8(2)(g), 8(4)(g)).
   • Drugs: obtain prescription and pharmacy dispensing records for the specified list of drugs, and clinician notes showing the drug was used on average daily for at least one continuous year and that it was swilled or retained in the mouth adjacent to the affected site (s 8(2)(h), 8(4)(h)). Note the specified list in Schedule 1.
   • Fumes: obtain industrial hygiene monitoring records showing concentrations greater than 0.5 mg/m3, with total cumulative exposure hours reaching 2 000 before clinical onset/worsening, and establish the temporal relation to service (s 8(2)(i), 8(4)(i)).
   • Vomiting/regurgitation: document episodes that reach at least 100 occasions within the one year before clinical onset/worsening, using hospital/clinic notes, GP records, ambulance reports or other contemporaneous records (s 8(2)(j), 8(4)(j)).
   • Inability to obtain appropriate clinical management: compile evidence of attempts to access dental care, waiting lists, referrals, denials, geographic or financial barriers and clinical consequences, as relevant to s 8(5).

5. Establish nexus to relevant service. For each factor relied upon, demonstrate how the exposure or condition was related to the person’s relevant service as defined in Schedule 1. Provide service records, duty statements, postings, medical incidents during service, or employer statements that link the factor to service (s 9(1)). For subsections 8(3)-8(5), confirm whether the tooth wear was suffered or contracted before or during (but did not arise out of) service, since those subsections are limited in application by s 9(2).

6. Cross‑reference other Statements where necessary. If a s 8 factor refers to an injury or disease for which another Statement exists, identify and apply that other Statement’s criteria per s 10. For example, if a claimant relies on a gastro‑oesophageal reflux disease factor that is covered by a separate Statement of Principles, procure and apply that Statement’s factors as part of the argument.

7. Prepare expert evidence linking clinical findings to the claimed exposures. Where thresholds are technical (industrial hygiene mg/m3, pool pH, cumulative hours), specialist reports from occupational hygienists, pool engineers, or dental specialists will strengthen the causal narrative. Experts should explicitly address how the claimant’s facts satisfy the specific s 8 predicates.

8. Document timing carefully. Several factors depend on clinical onset or clinical worsening dates. Dental clinicians should provide an opinion identifying dates or narrow windows for onset and any documented progression, because the Statement’s time windows (for cessation, lag periods and cumulative durations) will be applied strictly.

9. Anticipate gaps and provide alternative evidence. Where contemporaneous records are weak, assemble corroborative witness statements, consumer purchase history, social media records, or treatment histories that support retrospective estimates. That said, decision makers may give limited weight to retrospective self‑report where objective corroboration is absent.

10. Keep records of the statutory materials and amendments. Because the Statement was amended in 2018 to add vomiting/regurgitation factors, advisers should ensure that the version applicable to the claim date is the one relied on, and consult the Legislation Register for later amendments (endnotes, compilation note).

Following this checklist maps the instrument’s textual requirements into actionable evidence and expert opinion. The core compliance task is to show, with precise and preferably contemporaneous evidence, that at least one s 8 factor existed and was related to relevant service per s 9, with tooth wear clinically confirmed per s 6(2)(b)-(c).