Honest Conversation Every Dentist and Lab – Let’s be real with each other for a minute. This might sting a little, because both sides of the dentist-lab relationship are about to hear some hard truths. So before anyone grabs the phone to complain about a case, let’s slow down and look at the whole picture.
Here’s the thing. When a crown won’t seat, when a contact is off, when a shade misses, when a full-arch case feels wrong, or when a restoration comes back and everyone’s annoyed, it’s almost never just one person’s fault. Somewhere between the CAD design, material choice, milling, sintering, staining, glazing, shipping, prep, tissue management, scan, bite, shade, and delivery, something broke down.
Sometimes the lab dropped the ball. Sometimes the dentist did. And honestly, a lot of the time, both sides had a chance to catch the problem early and just… didn’t.
That’s the conversation nobody wants to have.
Labs love their go-to line: “Garbage in, garbage out.” Dentists have one too: “The lab messed this up.” Both can be true. Both can also be lazy cop-outs.
So let’s talk like grown-ups.
The lab isn’t off the hook just because the scan came in looking sketchy. A good lab isn’t only a production center. It’s supposed to be a filter. If the margin is unreadable, say so. If the scan has holes, flag it. If the bite looks off, speak up. If the implant scan body alignment seems wrong, stop the case. If there isn’t enough restorative space for the material requested, don’t just quietly “make it work” and hope nobody notices.
That’s passive lab work, and passive lab work turns into active chairside headaches.
Labs carry real responsibilities: correct CAD parameters, proper cement spacing, the right implant libraries, smart material selection, solid connector dimensions, accurate milling, controlled sintering, clean intaglio surfaces, good contacts, thoughtful occlusion, and a final restoration that actually respects biology.
A crown that drops right in but has weak contacts, an over-relieved internal fit, flat anatomy, or an emergence profile nobody can clean isn’t a great crown. It’s a quiet problem waiting to get loud.
And let’s talk about remakes honestly. Industry numbers usually put the national external remake average around 4%, with some larger commercial labs reporting closer to 6% or 7%. Lab-side surveys often pin roughly 80% to 82% of external remakes on clinical-side issues, but that still leaves about 18% to 20% tied to lab fabrication problems. So no, it’s not all on the dentist. Labs own a real slice of that failure rate too.
Repairs belong in this conversation as well. In removable prosthetics, long-term repair and maintenance are no small thing. One implant dentistry reference notes that when abutment tooth repair was used as the failure marker, conventional removable partial dentures showed survival rates of 40% at five years and 20% at ten years. That matters, because every repair, remake, fracture, loose contact, chipped ceramic, or failed prosthesis chips away at the patient’s trust in the whole team.
Now let’s flip it and bring in the dentist’s side, because the lab can’t invent truth out of bad information.
If the margin is unclear, the tissue is bleeding, the prep is under-reduced, the scan body isn’t fully seated, or the bite is unstable, the lab isn’t getting truth. It’s getting a very high-resolution version of a problem.
That part’s on the clinical side.
A shaky scan, missing photos, a rushed bite, an ignored reduction map, or a vague shade note can doom a case before the lab even opens the file. “Make it look natural” isn’t a prescription. “Match the other side” isn’t enough for an esthetic case. “Patient wants it white” isn’t a shade protocol.
And here’s where both sides need to stop treating the data like the enemy. The data isn’t there to embarrass anyone. It’s there to take ego out of the conversation.
Take full-arch implant capture. Research shows different digital capture methods can perform wildly differently. One recent study found extraoral photogrammetry had the highest trueness, while some intraoral scanner workflows showed much larger deviations. That doesn’t mean intraoral scanners are bad. It means full-arch implant cases aren’t the same as single crowns, and the workflow has to match the risk of the case.
That’s the whole point. The data shouldn’t become the main event. It’s just a reminder that different tools have different limits.
A single-unit crown can be very predictable with a good intraoral scan. A veneer case with tight contacts may need more caution. A full-arch implant case might call for photogrammetry, verification, or a tighter protocol. A cement-retained implant crown might be perfect in one situation and a biological risk in another. A screw-retained design might fix one issue and create another. A screwmentable restoration can be a smart middle ground, but it still needs the right case selection and clean execution.
The real problem isn’t that dentists or labs make mistakes. It’s that we keep making the same ones without tracking them.
That’s when remakes turn emotional instead of educational. A remake shouldn’t just be “bad lab work” or “bad scan.” It should have a category. Was it a margin issue? A bite issue? A contact problem? Shade? Scan distortion? Insufficient reduction? Wrong material? CAD design? Milling? Sintering? An implant component? Shipping damage? A patient factor?
Once you name the failure, you can fix the workflow. If you don’t name it, you just argue.
And let’s be honest, some labs need to work on communication. Sending a case back with “doctor, please rescan” and zero explanation isn’t helpful. Show the margin. Show the mesh hole. Show the bite discrepancy. Show the tight clearance. Show the scan body concern. If you want better data from the dentist, teach them what went wrong.
On the flip side, dentists need to stop treating every lab question like a personal attack. When the lab asks for a rescan, a new bite, or a better photo, they’re not insulting your dentistry. They might be saving you a 45-minute delivery appointment that turns into a remake. That deserves a thank-you, not a grudge.
The dentist should be able to say, “Show me why.” Then both sides solve it without ego getting in the way.
Implant cases raise the stakes even more. We all love talking about gorgeous zirconia, custom abutments, titanium bases, screw access channels, pink ceramic, and slick digital workflows. But if the patient can’t clean the prosthesis, we didn’t succeed. We built a maintenance problem with nice anatomy.
Peri-implant disease is driven heavily by biofilm, and restorative design plays a big role in whether the patient can actually maintain the case. Current guidelines stress that peri-implant mucositis and peri-implantitis are inflammatory conditions tied to peri-implant biofilm, and that maintenance, plaque control, and access all matter.
So both sides own the biology. The dentist owns diagnosis, surgical-restorative planning, maintenance protocols, patient education, and cement cleanup. The lab owns contours, emergence profile, restorative access, cleansability, material design, and whether the prosthesis is even a shape the patient can realistically keep clean.
A restoration can be beautiful and still be wrong.
Excess cement is the perfect example. Dentists are responsible for how they cement and clean. But labs influence where the margin sits, how deep it goes, how retrievable the design is, and whether extraoral cementation or screw retention would’ve been the safer call. Clinical endoscopic research found excess cement associated with 34 of 42 implants that had peri-implant disease, and inflammation cleared up in most evaluated cases once the cement was removed. So this isn’t theoretical.
This is exactly why we need less blaming and more protocol.
Before a case goes into production, the lab should ask: Is the scan usable? Is the prescription complete? Is the material appropriate? Are the CAD settings right for this doctor? Is the emergence profile cleanable? Is the design strong enough? Does anything need clarifying before we mill?
Before a case goes to the lab, the office should ask: Are the margins visible? Is the bite stable? Are the photos useful? Is the prep reduction right for the material? Is the implant component fully seated? Is this even the right capture method for this case?
That one pause saves everyone. The chair time. The remake. The awkward phone call. The patient losing confidence. The lab losing money. The dentist losing trust.
And here’s the bigger picture. The best lab isn’t the one that says yes to everything. It’s the one that helps you avoid failure before it gets expensive. The best dentist isn’t the one who never has a remake, because that dentist doesn’t exist. It’s the one who studies the remake, improves the input, listens to feedback, and builds a better system.
Digital dentistry is powerful, but it’s not magic. Scanners have limits. Software has limits. Milling machines have limits. Sintering has limits. Materials have limits. Operators have limits. That’s not bad news. That’s just the reality we need to respect.
So before your next case turns into another dentist-versus-lab debate, maybe the better question isn’t “Who messed this up?” Maybe it’s “Where did the workflow fail, and how do we catch it earlier next time?”
That’s how good practices get better. That’s how good labs become true partners. And that’s how we stop turning remakes into arguments and start turning them into better dentistry.