In May 2026, we sat down and did what a new Barrie resident does when they need a dentist: we asked AI. Three different queries, three different platforms — ChatGPT, Perplexity, and Google AI Overviews. Here's exactly what came back, what the recommended practices had in common, and what was missing from the ones that didn't appear.
This is the first in our Local Audit series — real searches, real results, documented so Northern Ontario businesses can see exactly where the gap is. We're not describing how AI search works in theory. We're showing you what it returned when we ran the queries.
Audit methodology: May 2026Three queries run across ChatGPT (GPT-4o), Perplexity, and Google AI Overviews. Searches conducted from a Barrie IP. No prior search history for dental services. Results documented on first response — no follow-up prompting. Practice names in the results are publicly available information surfaced by AI tools.
The three queries we tested
We chose queries that reflect how real patients actually search — not the generic "dentist Barrie" that a keyword tool would suggest, but the conversational phrasing people use when they're talking to an AI assistant:
Query 1
"Find me a dentist in Barrie accepting new patients"
Query 2
"Is there a dentist in Barrie who does Invisalign and is taking new patients?"
Query 3
"Emergency dentist in Barrie open on weekends"
What came back — and what the recommended practices had in common
Across all three platforms and all three queries, the results had a clear pattern. A small cluster of Barrie dental practices appeared repeatedly. These weren't always the largest or most established practices in the city — they were the ones whose online presence was structured to answer the specific question being asked.
The practices that appeared consistently shared five characteristics:
1. "Accepting new patients" stated explicitly
Every practice that appeared in Query 1 had the phrase "accepting new patients" or "welcoming new patients" in either their Google Business Profile description or on their website homepage. This isn't inferred by AI — it has to be written in plain text somewhere it can read.
2. Services listed individually — not as categories
Practices that appeared for Query 2 (Invisalign) had "Invisalign" or "clear aligners" as a named service in their GBP services section or on a dedicated page on their website. Practices whose profiles listed "cosmetic dentistry" without naming Invisalign specifically did not appear, even if they offer it.
3. Correct, current hours — including weekend availability
Query 3 results were almost entirely determined by GBP hours. Practices with Saturday hours listed and correct appeared. Practices with no Saturday hours listed — even if they do take emergency calls — did not appear in the emergency/weekend query. AI reads the hours field, not the phone number.
4. Reviews that mention specific treatments and the city
The recommended practices had reviews that read like: "Got my Invisalign started here last month, great experience in Barrie" or "Called about a broken tooth on a Friday, they fit me in same day." These aren't generic five-star reviews — they contain service types and locations. AI surfaces this content as evidence for its recommendation.
5. A GBP post within the last 60 days
Every practice that consistently appeared across all three queries had posted a Google Business Profile update within the last two months. Practices with profiles that hadn't been updated since late 2025 appeared less frequently and were less likely to appear in Perplexity specifically, which weights recency signals more heavily than ChatGPT does.
What was missing from practices that didn't appear
This is the more instructive part of the audit. Barrie has a significant number of dental practices — the city's size supports a competitive market. Many of these practices have strong reputations, healthy patient lists, and professional websites. Several didn't appear in any of our three AI queries. Here's why:
"The most common pattern: a well-established practice with a beautiful website, a full schedule, and a GBP that says 'general and cosmetic dentistry' and hasn't been touched in 14 months. AI has nothing specific to match to a patient's query."
Vague service descriptions. "General dentistry, cosmetic dentistry, restorative care" — this describes the category of work, not the specific treatments. A patient asking about Invisalign or implants or emergency care needs specific language. Several practices in Barrie offer every service a patient might ask for and appear in zero AI responses because their profiles don't name those services explicitly.
Stale or incorrect hours. Multiple Barrie dental practices had hours in their GBP that appeared to be from pre-pandemic schedules — or had never been updated after adding Saturday hours. One practice that takes emergency calls and is open Saturday mornings didn't appear once in our emergency/weekend query because their listed hours showed Monday through Friday only.
No mention of new patients. Several practices with "new patients welcome" on their website had GBP profiles that said nothing about accepting new patients. ChatGPT and Perplexity read both — but if one source is silent on this, the AI response is less confident, and the practice gets deprioritized in favour of one that states it in both places.
Generic reviews only. A practice with 80+ reviews but almost all of them reading "great dentist, very gentle, highly recommend" — without service specifics or location references — provided AI with no usable matching data. High review volume helps, but review content matters more for AI visibility than star count.
Want to know if your practice appeared in our audit?
We can run these same queries for your practice — and if you didn't appear, show you exactly which of the five factors above is the gap and what to fix first.
Check My Practice's AI Visibility →Platform differences: ChatGPT vs Perplexity vs Google AI
The three platforms didn't return identical results — they have different data sources and different weighting:
ChatGPT (GPT-4o with browsing) drew heavily from websites and directory listings. Practices with detailed, text-rich websites appeared more reliably in ChatGPT than in the other two platforms. For ChatGPT visibility, your website content matters as much as your GBP.
Perplexity weighted recency most heavily. Practices with recent GBP posts and recent reviews appeared more reliably. Perplexity also cited its sources — which means the practices that appeared got a visible link back to their listing or website. This is a direct referral opportunity that doesn't exist in the other two formats.
Google AI Overviews correlated most closely with traditional Google Maps rankings. Practices with strong GBP profiles and consistent review velocity appeared here more reliably than newer practices with better-optimized websites. If you already rank well in Google Maps, AI Overviews likely already sees you — though with less service specificity than you'd get from direct optimization.
The takeaway: optimizing for one platform helps with all three, but the emphasis differs. Website content matters more for ChatGPT; recency and posting frequency matter more for Perplexity; GBP completeness and review volume matter more for Google AI Overviews.
What any Barrie dental practice can do this week
Based on what we found in this audit, the three highest-impact changes for Barrie dental practices are:
First, update your GBP description to explicitly state that you're accepting new patients and list at least five specific services by exact name — including any specialty services like Invisalign, implants, or pediatric care.
Second, fix your hours if they're wrong or incomplete. If you have any weekend or extended availability, it needs to be in your GBP right now. This is the primary factor for emergency and weekend queries.
Third, post a GBP update this week — anything that mentions a current service, your communities served, and that you're taking new patients. One post won't transform your visibility, but it signals to Perplexity and Google that your practice is active, and it's the fastest thing you can do today.
For the full breakdown of how dental offices in the 705 should approach AI search optimization — not just Barrie — read our dental AI search guide for Northern Ontario.
Frequently asked questions
Will you be running audits for other cities and industries?
Yes — this Barrie dental audit is the first in our ongoing Local Audit series. We'll be running queries across multiple industries and cities throughout 2026, including Orillia, Collingwood, Midland, and Muskoka-area communities. We're also building the 705 AI Search Report 2026 — a comprehensive audit of 100 Northern Ontario businesses across 10 industries and 10 cities, publishing in late May 2026.
Can I see which specific practices appeared in your results?
We document which practices appeared in each query internally. We don't publish specific competitor comparisons by name in the public audit posts — but if you contact us for an AI visibility check, we can show you where your practice stands relative to the practices that are currently appearing for your key queries.
How often do AI search results change for local businesses?
More frequently than traditional search rankings. Google AI Overviews can shift within days of a GBP update. Perplexity re-indexes on its own schedule but responds quickly to new reviews and recent posting activity. ChatGPT's browsing results update when it re-fetches pages. The practical answer: changes you make to your GBP this week are likely reflected in AI results within two to four weeks. This is faster than traditional SEO, which is one reason AI search optimization is worth prioritizing now.
Is this kind of audit something you do for businesses on request?
Yes. We run AI visibility audits for businesses across the 705 as a free initial assessment. We search your business across ChatGPT, Perplexity, and Google AI for the queries your customers are using, document what appears, identify the specific gaps, and tell you the three highest-impact fixes. See our services page or contact us directly to get started.
The patients asking AI for a dentist in Barrie are real. So are the practices getting those calls.
This audit documented exactly what AI returns when a new Barrie resident asks where to find a dentist. A small group of practices appear consistently. The rest don't — not because of reputation or quality, but because of what their profiles say and how recently they've been updated.
If you want to know where your practice stands — reach out for a free AI visibility check. We run the same queries for your practice and show you exactly what's coming back. Or read the full dental AI search guide to start making changes on your own.