Most dentists assume Google Ads works like an auction house: the highest bid wins the top spot, and everyone else lines up behind in order of how much they paid. If that were true, the practice with the biggest budget in town would always sit at the top, and a smaller practice would never have a chance.
It is not true, and that is good news for any practice willing to do the work. Google decides where ads show using more than money. A dental practice with a relevant ad and a fast, useful landing page can show above a competitor who is bidding more, and often pay less for the privilege.
In Chapter 3 we worked out what a new patient is worth and what you can afford to pay for one. This chapter explains how Google decides where your ad shows and what it costs, using Google's own explanation, and what you can do about it.
Money Alone Does Not Buy the Top of the Page
Every time someone searches "dentist near me," Google runs an auction in a fraction of a second to decide which ads appear and in what order. If money were the only thing that mattered, the results would fill up with whoever paid most, relevant or not, and people would stop trusting the ads. So Google weighs quality alongside the bid.
That is the whole reason this chapter matters to a dental practice. Your competitors include large dental groups and chains with bigger budgets than yours. You will not always outspend them. You can often out-build them.
Google's Six Factors for Where Your Ad Shows
Google calls the number that decides your position "Ad Rank," and it publishes the factors that go into it. Here is Google's own list, with what each one means for a dental practice:
- Your bid. The most you are willing to pay for a click. It matters, but it is one factor of six.
- The quality of your ads and landing page. How relevant and useful your ad and the page behind it are to the person searching. This is judged at the moment of the auction.
- Ad Rank thresholds. Minimum quality standards an ad has to meet to show at all, or to show in a given position.
- The competitiveness of the auction. How close the competing ads are to each other. A crowded "dentist near me" auction in a big city is tighter than one in a small town.
- The context of the search. Where the person is, what device they are on, what exactly they typed, and when. Someone searching "emergency dentist" on a phone at one in the afternoon is a very different search from someone reading about veneers on a laptop at night.
- The expected impact of your ad assets. The extras attached to your ad: a call button, your location, links to specific service pages. Google considers how much these add.
Notice how many of those six you control directly: the quality of the ad, the quality of the page, and the assets. Only one of them is the size of your bid.
Quality Score Is Google's Report Card, Not the Auction Itself
Inside Google Ads you will find a number called Quality Score, a rating from 1 to 10 shown for each keyword. It is easy to assume this number is plugged straight into the auction. Google says otherwise, in plain words: "Quality Score is not an input in the ad auction. It's a diagnostic tool."
Think of it as a report card. The auction judges the quality of your ad and page in real time, every time. Quality Score is Google's summary of how your ads have been measuring up against other advertisers, so you can see what to fix. It is built from three parts:
- Expected click-through rate. How likely your ad is to be clicked when it shows for that keyword, compared with other advertisers, with the effect of your ad's position and assets taken out.
- Ad relevance. How closely your ad matches what the person searched for.
- Landing page experience. In Google's words, "how relevant and useful your landing page is to people who click your ad."
Each part is rated "above average," "average" or "below average," based on how you compare with other advertisers over the last 90 days. A low score does not mean your account is broken. It means Google is telling you, specifically, which of the three to work on. Very few report cards are that direct.
Ad Relevance Is the Part You Control From Day One
Of the three, ad relevance is the one you can get right before you have spent a single dollar, because it depends entirely on how you build the account.
The principle is simple: the ad should match the search. Someone searching "emergency dentist" should see an ad about same-day emergency care, not a general ad about family dentistry. Someone searching "dental implants" should see an ad about implants, ideally with the word "implants" in the headline.
That sounds obvious, but it only works if the account is built to allow it. If every dental keyword you bid on sits in one big group sharing one ad, that ad cannot possibly match an emergency search, an implant search and a cleaning search at the same time. So it matches none of them well.
This is why we build dental accounts in small, tightly themed ad groups: emergency searches together, implant searches together, cleaning and new-patient searches together, each with a handful of closely related keywords and ads written specifically for them. Every ad can then speak directly to the searches it serves. Chapter 5 covers how to find and group those keywords, and Chapter 8 covers writing the ads.
Your Landing Page Is Where Most Dental Accounts Lose Points
The second part of the report card happens after the click, and it is where we see dental accounts lose the most ground.
The first problem is where the ad sends people. An ad for implants that lands on the homepage makes the patient hunt for the information they came for. A page built specifically for implants, with clear information, real photos of your office and your team, reviews, financing details and an obvious way to book, answers the search the moment it loads. Google rewards the second, and patients book from it.
The second problem is speed, especially on a phone, where a great many "dentist near me" searches happen. We ran Google's own speed test, PageSpeed Insights, on the Phoenix example practices from Chapter 1 in September 2026:
- Harris Dental's homepage scored 99 out of 100 on the mobile test, with its main content visible in 1.5 seconds. That is about as good as it gets.
- Another dental homepage we tested took nearly 15 seconds to show its main content on a phone. Google's own Ads help center puts it bluntly: "Nearly half of all visitors will leave a mobile website if the pages don't load within 3 seconds." Every one of those visitors was a click you paid for.
You can run the same test on your own site in two minutes. Go to PageSpeed Insights (pagespeed.web.dev), enter the page your ads send people to, and look at the mobile result first. If it takes more than a few seconds to show the main content, fixing that is one of the most valuable things you can do for your ads, because it helps every click you are already paying for.
Expected Click-Through Rate Judges the Ad, Not Where It Sits on the Page
The third part is easy to misunderstand, so here is Google's own definition. Expected click-through rate "measures how likely it is that your ads will get clicked when shown for that keyword, irrespective of your ad's position, assets, and other ad formats that may affect the prominence and visibility of your ads."
That last part matters. Google deliberately takes out the effect of where your ad sits on the page and of extras like a call button or your location. So you cannot buy a better expected click-through rate by bidding your way to the top, and you cannot pad it with assets. It is judged on how often people click your ad for that keyword, compared with other advertisers whose ads showed for the same search.
In practice that leaves the ad itself: whether its words match what the person searched and give them a reason to choose you. For a dental practice, that means headlines that echo the search ("Emergency Dentist, Seen Today" for an emergency search, not a general welcome message) and a concrete reason to pick you: new patients welcome, same-day appointments, the insurance you accept, sedation for anxious patients. Chapter 8 goes into the ad copy in detail.
Assets such as a call button and your location still matter a great deal. They just count somewhere else: they are the sixth factor in Google's Ad Rank list, not part of this rating.
Better Quality Is Cheaper Quality
Here is the part that pays for all the work. Google states it directly: "Higher quality ads can often lead to lower CPCs." In other words, you pay less per click when your ads are higher quality.
Google does not publish an exact formula for what you pay, so be wary of anyone who claims to have one. But the practical effect is consistent with everything above. A relevant ad and a strong landing page help you hold a good position without having to outbid everyone, and they help you win positions a lower-quality competitor has to pay more to reach. Over months, that difference compounds into a real advantage for a practice competing against bigger budgets.
One thing to expect in a brand-new account: your keywords have little or no history, so Google has less to judge them on. You may even see "--" in the Quality Score column, which Google says means there are not yet enough searches exactly matching the keyword to score it. In our experience, bids often need to be firmer in the first weeks while the account builds a track record, and they can usually be eased back as the quality signals improve. That is our practice, not a Google rule, but it explains why the first month of a new account tends to cost more than the months that follow.
How to Read Your Quality Score in Five Minutes
You do not need to guess where your account stands. Google Ads will show you, keyword by keyword:
- Open your keywords view and add four columns: Quality Score, expected click-through rate, ad relevance and landing page experience. Save the column set so it is there every time.
- Look at the keywords that matter most first, the ones that bring in new patients, not every keyword in the account.
- Find the "below average" ratings and match each to its fix:
- Ad relevance below average: the ad does not match the keyword closely enough. Split the ad group so the ad can be written for these searches specifically. - Landing page experience below average: the page is slow, off-topic, or hard to act on. Send the ad to a page built for that service, and run the speed test. - Expected click-through rate below average: people are not clicking the ad itself as often as they click competitors' ads for that search. Rewrite the headlines to match the search and give a clear reason to choose you. A higher bid will not fix it, because Google takes position out of this rating.
- Check again in a few weeks. The ratings compare you with other advertisers over the last 90 days, so changes take a little while to show.
Next, Find the Searches That Bring In New Patients
You now know how Google decides where your ad shows, what the Quality Score report card is telling you, and why quality is the cheapest way to compete with bigger budgets. The next step is choosing which searches to show up for at all. That is Chapter 5, Keyword Research.
If you would like a second pair of eyes on your own account, we look at Quality Score, ad relevance and landing pages on every dental account we take on. Our Google Ads management starts there, because a better-built account is the one advantage a bigger competitor cannot simply buy.
