1
Owner Led
Up to $1.5M
Owner evolutionDoer → Decider
How to read this model
This isn't designed to tell a practice "what level you are". It's designed to make the pattern of growth visible: what greater scale looks like, where existing structures naturally become stretched, what additional growth makes the next role affordable and useful, and how profitability can dip before recovering as the business matures.
The growth matrix
Seven stages of growth, from a single chair to an enterprise.
Each stage has its own turnover band, team size and daily call volume. The owner's own role evolves alongside it, shown underneath each stage as a supporting detail.
2
Foundation Growth
$2.1M–$2.7M
Owner evolutionDoer → Delegator
3
Managed Practice
$3.3M–$5.8M
Owner evolutionDelegator → Leader
4
High Performance Practice
$6.4M–$9.5M
Owner evolutionLeader → Chair
5
Multi-site Group
$10M–$20M
Owner evolutionOwner → Organisation Builder
6
Regional Organisation
$20M+
Owner evolutionOrganisation Builder → Culture Custodian
7
Enterprise
$40M+
Owner evolutionCulture Custodian → Governance & Legacy
The doorway effect
Growth can feel hardest just before the next structure becomes viable.
Use the toggle to compare the two recurring patterns: the four-to-five chair transition in a single practice, and the four-to-five site transition in a group.
1 to 12 chairs · chair 1 is the owner's own production (~$850K/yr), each chair after that an employed dentist (~$620K/yr)
Chair
1
$850K
22% · $187K EBITDA
Chair
2
$1.47M
21% · $309K EBITDA
Chair
3
$2.09M
20% · $418K EBITDA
Chair
4
$2.71M
17% · $461K EBITDA
Strain pointChair
5
$3.33M
19% · $633K EBITDA
Relief pointChair
6
$3.95M
16% · $632K EBITDA
Chair
7
$4.57M
15% · $686K EBITDA
Chair
8
$5.19M
16% · $830K EBITDA
Chair
9
$5.81M
17% · $988K EBITDA
Chair
10
$6.43M
16% · $1.03M EBITDA
Chair
11
$7.05M
17% · $1.20M EBITDA
Chair
12
$7.67M
18% · $1.38M EBITDA
"The strain point isn't a ceiling, it's a doorway."
What changes at five chairs?
New roles arrive together: Practice Manager, Steri Nurse and a second Receptionist. The team grows from 9 to 14 people, as daily calls climb from 60–75 to 80–100. Note the relief point now sits right at the start of Stage 3 (5–9 chairs), rather than inside Stage 2, since the stage bands above are built directly from this same $850K owner / $620K employed-dentist progression.
New roles arrive together: Practice Manager, Steri Nurse and a second Receptionist. The team grows from 9 to 14 people, as daily calls climb from 60–75 to 80–100. Note the relief point now sits right at the start of Stage 3 (5–9 chairs), rather than inside Stage 2, since the stage bands above are built directly from this same $850K owner / $620K employed-dentist progression.
1 to 6 practices · each site assumes a minimum of 5 chairs
Practice
1
$3.33M
17% · $566K EBITDA
Practices
2
$5.81M
15% · $872K EBITDA
Practices
3
$8.91M
13% · $1.16M EBITDA
Practices
4
$12.01M
9% · $1.08M EBITDA
Strain pointPractices
5
$15.11M
11% · $1.66M EBITDA
Relief point · "Five fives"Practices
6
$18.21M
12% · $2.19M EBITDA
"Four practices isn't a wall, it's a doorway."
The measurable squeeze:
EBITDA falls from $1.16M at three practices to $1.08M at four, even as turnover rises. At five practices, the "five fives" sweet spot, five sites of five-plus chairs each, an Operations Manager and centralised HR, payroll and marketing become viable. Turnover here reflects the owner splitting personal chair time evenly across their first 2 practices (~$425K each), with every practice beyond that fully staffed by employed dentists.
EBITDA falls from $1.16M at three practices to $1.08M at four, even as turnover rises. At five practices, the "five fives" sweet spot, five sites of five-plus chairs each, an Operations Manager and centralised HR, payroll and marketing become viable. Turnover here reflects the owner splitting personal chair time evenly across their first 2 practices (~$425K each), with every practice beyond that fully staffed by employed dentists.
Unit economics
Why a chair isn't just a chair.
The per-chair turnover benchmark above is a useful average, but it hides the thing that actually drives profit: a chair's economics depend on who's sitting in it. Try your own numbers below.
Chairs
Production & cost assumptions
$600/hr
$250/hr
40%
8.3%
$35/hr
$65/hr
Contribution per hour
After commission or wages, materials/lab and DA cost
Per dentist chair
$275
46% retained
Per hygiene chair
$164
66% retained
Total practice contribution
$275/hr
~$379,500/year at 1,380 hours
One chair, one dentist. There's no spare capacity yet for a second provider to be additive rather than just occupying a chair.
Capacity thresholds
When does the next role become necessary?
These are growth thresholds rather than rigid rules. The model shows the point where workload and complexity begin to exceed the capacity of the existing team, followed by the point where the next role becomes sustainable.
Single-practice support roles
Reception capacity
4 → 5
chairs
At 4 chairs: about 60–75 calls/day and 30–35 appointments/day, carried by one receptionist.
Capacity strain
2nd Receptionist
5
chairs
Around 80–100 calls/day and 40–45 appointments/day. A second receptionist becomes part of the relief structure.
Relief role
Steri Nurse
5
chairs
At this scale, removing sterilisation duties from chairside nurses restores clinical flow and role clarity.
Relief role
Practice Manager
5
chairs
A standalone practice reaches the point where a full-time management role becomes justified by team size and operating complexity.
Relief role
The pattern isn't "hire early." It's "recognise the strain, then grow to the point where the right role becomes viable."
What the 4-chair squeeze looks like:
A team of roughly 9 people is at capacity. The business is large enough to create coordination pressure, but not yet large enough to comfortably carry all the relief roles. The next chair is what unlocks the structure.
A team of roughly 9 people is at capacity. The business is large enough to create coordination pressure, but not yet large enough to comfortably carry all the relief roles. The next chair is what unlocks the structure.
Multi-practice management layers
Each practice
5
chairs minimum
Within a group, each site is built to the same 5-chair relief point as a standalone practice, its own full-time, on-site Practice Manager, Steri Nurse and second Receptionist.
Site structure
Owner span
4
practices
The group-level strain point: the owner can no longer remain personally across every site, issue and team relationship.
Capacity strain
Operations Manager
5
practices
The "five fives" sweet spot, five practices of five-plus chairs each. Group operations management and centralised HR, payroll and marketing become part of the relief structure together.
Upper management
Regional layer
7–8
practices
One Operations Manager can realistically coordinate about 6–8 Practice Managers. Around 7–8 sites, a Regional Manager layer becomes justified.
Next ceiling
Capacity design
The "five fives" sweet spot.
A useful reference point for when group structure begins to settle: five practices, each operating at approximately five chairs with a full-time on-site Practice Manager.
5 × 5
Five practices, five chairs
A group configuration associated with roughly $15.1M turnover, once the owner's chair is split across their first two practices and every chair beyond that is employed-dentist staffed.
1.5–2.5%
Management layer
Indicative cost range for an appropriately justified management layer, as a percentage of the turnover it oversees.
6–8
Practice Managers
Approximate span of control for one Operations Manager before a further regional layer becomes necessary.
How many points does group buying power actually save?
| Cost category | Single-site | Group-negotiated | Saving |
|---|---|---|---|
| Marketing | ~3% | ~2% | 1.0 point |
| Auxiliary wages | ~25% | ~24% | 1.0 point |
| Lab | ~7% | ~6% | 1.0 point |
| Consumables | ~6% | ~4.5% | 1.5 points |
| Facility/occupancy | ~7% | ~7% | Little to none, fixed per site |
| Admin, HR & accounting | ~6% | ~5.5% | 0.5 points |
Consumables is the single biggest lever. Facility costs barely move, they're fixed per site regardless of group size. Together these savings are worth roughly 5 percentage points of turnover, most of what turns the Stage 5 dip back into Stage 6's recovery, before the management layer's own 1.5–2.5% cost is even accounted for.
Growth discipline
What has to be true before you scale.
Everything above describes what happens when a chair or a practice is added. This is what has to be true first, without it, growth doesn't compound, it just adds cost.
Before adding another chair
- Demand evidence, not available space. Call volume and booking data justify it, "we have the room" isn't "we have the demand."
- Existing chairs are at high utilisation first. Adding a chair to spare capacity just dilutes everyone's hourly rate.
- A specific provider is identified, not "we'll find someone." An empty chair earns nothing.
- The staffing formula triggers correctly. Dedicated DA for a dentist chair, shared support for hygiene, the 5-chair role additions arrive together, not staggered in reactively.
- A redirection plan exists, if it's a hygiene chair. The 35% uplift only happens with deliberate redirection, not by default.
- Facility and equipment readiness is confirmed, not assumed or scrambled together after opening.
Before adding another practice
- The site meets the 5-chair minimum, or has a credible, funded plan to reach it. Smaller never reaches "five fives" economics.
- The site passes the due-diligence checklist below, location, competition, demographics, community fit, not just "the price was right."
- A Practice Manager is identified before opening, not hired reactively once problems surface.
- Systems are documented and transferable. SOPs, onboarding and values-based hiring exist in writing, not just in the owner's head.
- The owner's capacity is honestly assessed against the 2–3 site cap. Beyond it, the site needs to be fully associate-staffed and manager-led from day one.
- Group buying power extends to the new site from day one, not retrofitted six months later.
- The management layer stays within 1.5–2.5% of group turnover once this site is added. Out of band either way, the timing may be wrong.
The pattern running through both lists is the same one running through this entire model: growth that outpaces the criteria supporting it doesn't compound, it just adds cost. The threshold isn't the finish line, meeting the criteria before crossing it is what makes the threshold actually pay off.
Financial story
EBITDA margin is a dip-and-recovery curve, not a straight climb.
The broader stage-level curve reflects the owner's changing share of clinical production, additional management layers, and the eventual benefit of group buying power.
Stage 1 · 20–25%Owner-led production and minimal wage overhead. Illustrative: $1.2M turnover → ~$270K EBITDA.
Stage 4 · 16–20%Systems and department leadership recover efficiency, the single-site peak. Illustrative: $8M turnover → ~$1.44M EBITDA.
Stage 5 · 8–12%Owner steps back clinically while management cost arrives before group buying power has scaled. Illustrative: $15M turnover → ~$1.5M EBITDA.
Stage 7 · 13–18%Procurement leverage and centralised systems rebuild margin. Illustrative: $50M turnover → ~$7.75M EBITDA.
A lower margin on a much larger base is still a dramatically larger number.
The percentage never returns to Stage 1's peak, and that's structural.
Stage 1's margin exists because the owner's own chair time is free labour. Once that's permanently gone, no amount of scale fully recovers it. But between Stage 1 and Stage 7 in the illustration above, the margin falls by roughly a third while the dollar profit rises almost thirtyfold, and multi-site groups typically also sell at higher EBITDA multiples than a single practice, so enterprise value grows faster still.
Stage 1's margin exists because the owner's own chair time is free labour. Once that's permanently gone, no amount of scale fully recovers it. But between Stage 1 and Stage 7 in the illustration above, the margin falls by roughly a third while the dollar profit rises almost thirtyfold, and multi-site groups typically also sell at higher EBITDA multiples than a single practice, so enterprise value grows faster still.
What it's worth
EBITDA margin says how well it's run. The multiple says what it's worth.
The multiple tends to climb fastest at exactly the stage where the margin is weakest, because that's the stage a buyer stops seeing one dentist's income and starts seeing a business that runs without one.
Confirmed Australian transactions
| Transaction | Timing | Implied enterprise value | EBITDA used | Implied EV/EBITDA |
|---|---|---|---|---|
| Pacific Smiles, NDC/Crescent proposal | Apr 2024 | ~$316.5M, incl. $13.3M net cash | Midpoint FY24 guidance, ~$28.8M | ~11.0x |
| 1300SMILES, Abano acquisition | 2021 | $165M, blended consideration | FY21 underlying EBITDA, $12.2M | 13.5x |
| Ekera Dental, reported sale expectations | 2023–24 | Up to ~$300M | Reportedly ~$14M EBITDA | Up to ~21x (asking price, not confirmed) |
13.5x is the confirmed headline multiple for 1300SMILES, this is what the business as a whole was actually valued at. A higher 15.5x figure sometimes quoted for this deal reflects how the sale proceeds were split between founder and non-founder shareholders, not the value of the business, so it's left out here as noise rather than signal. Pacific Smiles' ~11x was calculated on underlying EBITDA before AASB 16, the lease accounting standard that materially changes how EBITDA is derived. All are platform-scale businesses, dozens or 100+ locations, corporate management, established brands, their multiples shouldn't be applied directly to an individual clinic or small group.
A practical indication by business profile
| Business profile | Indicative EV/normalised EBITDA | Roughly maps to |
|---|---|---|
| Owner-dependent single practice | ~3x–5x | Stages 1–3 |
| Strong multi-dentist practice or small group | ~5x–7x | Stage 4 into early Stage 5 |
| Established regional group with management infrastructure | ~7x–10x | Stage 5–6 |
| Institutional-quality platform | ~10x–14x+ | Stage 7 |
Disclosed EBITDA in these transactions is generally underlying, adjusted and pre-AASB 16, it can differ considerably from standard accounting EBITDA or a seller's own adjusted figure. Private Australian transactions are rarely disclosed publicly, so the lower bands above are less firmly evidenced than the listed transactions, worth validating with a dental-specific Australian business broker. Buyers also adjust EBITDA for market-rate dentist remuneration, owner expenses, associate retention, central-office costs and required capex.
What drives EBITDA up, the multiple up, or both
Mainly lifts the multiple
Recurring, predictable revenue
Hygiene/recall program ideally 28–33%+ of collections, higher fee-for-service mix, sticky case-based revenue like implants or orthodontics over one-off procedures.
Mainly lifts the multiple
Reducing owner dependency
Associate-led production, owner under ~70% of chair time, owner's own production paid a market-rate wage in the books, no single dentist over ~35% of group collections. Often the single highest-leverage driver.
Mainly lifts the multiple
Management depth and systems
Trained, non-owner Practice Manager per site and Operations Manager at group level, documented SOPs, values-based hiring built into the system rather than carried by the owner personally.
Lifts both
Earnings quality
EBITDA margin genuinely above 20–25%, properly justified add-backs, 2–3+ years of consistent or growing EBITDA rather than one good year.
Mainly lifts the multiple
Scale and growth trajectory
Growing from one site toward three or more can re-rate the multiple, not just the revenue, alongside a demonstrated organic growth rate.
Lifts EBITDA directly
Overhead efficiency
The same 1.5–2.5% management-layer benchmark from the growth thresholds above, kept inside that band protects both the margin and the multiple applied to it.
Protects the multiple
Compliance and diligence-readiness
No open regulatory or payer issues, audit-ready financials matching the Stage 7 governance standard, prepared before a buyer asks rather than under pressure once they do.
A fuller due-diligence lens: what a buyer is actually assessing on-site
The seven drivers above are the financial and structural levers that move the multiple. This is the broader, qualitative checklist sitting alongside them, drawn from an evaluation framework built for assessing dental practice purchase opportunities, none of it shows up on a P&L, but all of it shapes what a buyer will actually pay.
Location and market
Location itself, growth trends in the area, dentist-to-population ratio, competition, car parking and public transport access. Sits outside the P&L entirely, but directly shapes how defensible future revenue is.
Reputation and patient relationships
Community reputation, longevity, patient base size and diversity, how transferable patient relationships are post-sale, patient experience, cultural competency, online presence, referral partnerships. Connects to: recurring revenue, reducing owner dependency.
Commercial structure
Health fund preferred provider status, fee structure, service diversification, identified growth potential. Connects to: earnings quality, recurring revenue.
Operational quality
Equipment and consumables condition, strength of the existing team, current marketing effort, technology integration, quality of the transition plan. Connects to: management depth and systems.
Financial and compliance fundamentals
Proven financial stability, full regulatory compliance, legal and ethical standards, demonstrated positive cash flow. Connects to: earnings quality, compliance and diligence-readiness.
Buyer-specific fit
The buyer's own expertise, and how the opportunity compares against alternative investments on a risk-adjusted basis. Sits outside the practice's own value entirely, the same practice can be worth more to one buyer than another.
Culture and capital
How vision and values survive being carried by more people, and who needs satisfying as the group scales.
Neither of these shows up on a P&L, but both decide whether growth actually holds together. Both move in steps that line up with the same thresholds already mapped above, seen from a different angle.
1
Owner Led
Values transmission
Direct presence. The owner personally demonstrates every value in every interaction, no separate mechanism is needed because presence is the mechanism.
Shareholder satisfaction
The owner is the only shareholder. Satisfaction is simply personal take-home pay and day-to-day autonomy.
2
Foundation Growth
Values transmission
Verbal modelling extended to the first hires. The owner still trains everyone personally, values pass on through direct mentorship.
Shareholder satisfaction
Still just the owner, but now weighing personal draw against reinvestment for the first time.
3
Managed Practice
Values transmission
Written down for the first time. The owner can no longer personally onboard everyone, so values move from demonstrated to documented and taught.
Shareholder satisfaction
Largely still the owner, though a lender's covenant expectations may enter if growth is debt-funded.
4
High Performance Practice
Values transmission
Department heads become the filter. Each must interpret and enforce the values without the owner in the room, consistency now depends on how well they were selected on values, not just skill.
Shareholder satisfaction
EBITDA trend and reinvestment capacity. Any shareholder here wants proof the business scales without the owner personally present.
5
Multi-site Group
Values transmission
Formal mechanisms become non-negotiable: values-based hiring enforced by Practice Managers the owner didn't personally train, structured onboarding built on real stories, recognition tied to behaviour not just KPI.
Shareholder satisfaction
A broader shareholder base often appears, an advisory board, a lender, occasionally a co-investor. Satisfaction is driven by consolidated EBITDA trend, debt serviceability and governance quality.
6
Regional Organisation
Values transmission
The culture custodian role is formalised. Regional Managers are trained to carry and coach the values, and quarterly culture checks sit alongside the quarterly financial deep-dive.
Shareholder satisfaction
Formal advisory board, often the first institutional-style capital. Driven by growth trajectory, EBITDA multiple trajectory, and governance quality.
7
Enterprise
Values transmission
Embedded in governance itself. Board-level oversight of culture metrics, values written into hiring and promotion policy and into partnership agreements, so they survive leadership changes.
Shareholder satisfaction
A formal board, potentially multiple institutional shareholders. Driven by audit-ready reporting, the EBITDA multiple at scale, and succession robustness.
The values cliff and the EBITDA cliff happen at the same stage, for the same reason.
Stage 5 is where the owner stops being personally present at every site. That's exactly why margin dips and why values transmission has to shift from something the owner does personally to something the business does systematically. Values that aren't documented and built into hiring and onboarding before Stage 5 don't survive the transition.