On January 1, 2026, the ADA’s CDT 2026 code set went live with 60 changes, including 31 new codes, 12 revisions, and 6 deletions. Several of the new codes describe procedures dental practices have been performing for years without a precise way to bill them: occlusal guard cleaning, cracked tooth diagnostic workups, point-of-care saliva analysis, and digital denture fabrication. Practices that update their fee schedules and superbills early in 2026 capture revenue on visits they were already running. Practices that wait until midyear leave money on the table for every cleaning, diagnostic appointment, and removable prosthesis they deliver in the meantime.
What ADA changed for 2026
The CDT 2026 update reflects two trends in U.S. dental practice. First, technology adoption has outpaced the code set: digital impressions, 3D-printed dentures, and chair-side diagnostics have been routine for several years without billing infrastructure to match. Second, payer scrutiny on documentation has tightened, which means descriptors that used to limit what practices could bill (for instance, the resin composite descriptor that referenced lesion depth) have been revised to better match how dentists actually diagnose and treat. The combined effect is more codes to bill, broader applicability for several existing codes, and a small set of deletions that need to be cleaned out of legacy fee schedules before claims start denying.
Cracked tooth diagnostic testing
The new diagnostic code for cracked tooth evaluation covers the systematic testing across multiple teeth that dentists already perform when a patient presents with bite pain, cold sensitivity, or undefined intermittent symptoms. Until 2026, this workup was typically rolled into a limited problem-focused exam (D0140) or absorbed into the periodic exam fee. The new code lets practices document and bill the actual diagnostic work, which often includes percussion testing, transillumination, bite stick testing, and ruling out periodontal or endodontic causes. Practices that add it to their superbill capture revenue on a visit type they were already delivering for free, and they create a clearer paper trail for endodontic referrals and crown justification later.
Occlusal guard cleaning and inspection
Patients show up to recall appointments with their existing night guard or occlusal splint asking for it to be cleaned, polished, and checked for wear. Almost every general practice does this, and almost none have billed it cleanly because there was no specific code for it. CDT 2026 fixes that. Practices can now document the cleaning, inspection, and adjustment as a distinct service. The code also gives a documented reason to discuss replacement when the existing appliance is no longer functional, which is a common entry point to a higher-value laboratory-fabricated occlusal guard. Adding 50 cents to a dollar of fee on every recall that includes appliance care is a modest line item, but it adds up across a full schedule of recall hygiene patients.
Point-of-care saliva analysis
Chair-side saliva diagnostics have advanced enough that dentists can run pH, buffering capacity, and microbial assessments in the operatory rather than sending samples to a laboratory. CDT 2026 introduces a code that captures this point-of-care testing. The clinical applications include caries risk assessment, periodontal disease risk profiling, and dry mouth evaluation, especially for patients on multiple medications, undergoing radiation therapy, or with autoimmune conditions. Coverage from commercial dental plans is mixed in 2026, with some carriers paying the code as a covered diagnostic service and others rejecting it as not covered, in which case the patient is billed directly. Either way, the code lets practices document the work consistently and price the service clearly.
Digital denture procedures
CDT 2026 adds dedicated codes for dentures fabricated through 3D printing and digital scanning workflows. This matters because the existing complete and partial denture codes assumed conventional impression-based laboratory fabrication. Practices using a chair-side intraoral scanner and a digital workflow with a third-party milling or printing partner now have codes that match the technique. For duplicate dentures, the new digital code captures the lower laboratory cost and faster turnaround. Some payers will reimburse the digital codes at the same rate as conventional codes, others have set a separate fee schedule. Practices doing high removable prosthesis volume should review the payer mix and update internal pricing accordingly.
The revised resin composite descriptor
One of the most consequential changes is a revision rather than an addition. The ADA’s CDT 2026 revisions deleted the descriptor that limited a one-surface resin-based composite restoration to lesions penetrating into dentin. In practical terms, dental practices can now use the code for restorations on smaller lesions, including incipient enamel-only lesions that meet clinical criteria for restoration, and for sealant-restoration hybrids in appropriate cases. This expands the billable scenarios meaningfully for general practices doing minimally invasive dentistry. The change does not give license to over-treat; payers still apply medical necessity review. It does end a long-running disconnect between what dentists were diagnosing and what the code book allowed them to bill.
What to action this quarter
Three steps capture the new revenue without disrupting clinical workflow:
- Pull the full ADA CDT 2026 update list and add the new codes to your practice management software’s fee schedule. Set fees based on regional UCR data and your existing comparable codes.
- Update superbills, encounter forms, and chair-side reference cards so providers know which new codes apply during which visit type.
- Run a payer-by-payer coverage check on the new codes before billing them at scale. Some carriers updated coverage tables in January 2026, others are still catching up, and a small number have specific eligibility rules.
How MHB helps dental practices
For practices that want a billing partner already running CDT 2026 codes across multiple payers, our team handles end-to-end dental billing and claims management with payer-specific rules, code-set updates built in, and a denial recovery program for the most common dental rejection patterns. The work runs in the practice’s existing PMS, with a dedicated account lead and no setup fees.
The bottom line
CDT 2026 is not a sweeping reform. It is a set of small, practical updates that finally let dental practices bill for the work they were already doing. Adding the new codes to fee schedules, training the team, and verifying payer coverage takes a single afternoon. The revenue capture compounds over every visit, every quarter, for the rest of the year.
