Reference directory
The things a dentist looks up.
Guidelines, rules, standards and data, each with a TL;DR at the top so you know in ten seconds whether it applies to you, and a link to the document itself. Search it, or click a tag.
150 of 150 entries
3
levels of difficulty: low, moderate, high
2022 · Clinical · Endodontics
AAE Endodontic Case Difficulty Assessment Form (2022): the low, moderate, high worksheet that decides treat or referAmerican Association of Endodontists
Three levels. Low: only low factors, attainable by a competent practitioner with limited experience. Moderate: one or two moderate factors. High: three or more moderate factors or any high factor; may challenge the most experienced.
6
classes, I through VI, plus the E modifier for emergency surgery
2025 · Clinical · Anesthesia and sedation
ASA Physical Status Classification System: the six classes (and the E) a dentist writes on the sedation consentAmerican Society of Anesthesiologists
Six classes: I a normal healthy patient; II mild systemic disease; III severe systemic disease; IV severe systemic disease that is a constant threat to life; V a moribund patient not expected to survive without the operation; VI a declared brain-dead organ donor.
16
VITA classical shades Tokuyama says one shade covers
2019 · Technology · Restorative materials
Omnichroma (2019): the one-shade composite, how Tokuyama says structural color works, and where its own instructions say it will not matchTokuyama Dental
The mechanism in the maker's words: 'Structural color occurs when different wavelengths of light are amplified or weakened by the structure of a material itself.' Uniform 260 nm spherical silica-zirconia fillers generate a red-to-yellow color with no dyes or pigments added.
7,951
designated dental HPSAs as of June 30, 2026
2026 · Business · Federal workforce and wage data
7,951 dental shortage areas and 76.8 million people: how to find out whether your county is oneHealth Resources and Services Administration, Bureau of Health Workforce
As of June 30, 2026 there were 7,951 designated dental HPSAs covering 76,757,184 people: 653 geographic areas, 2,519 population groups and 4,779 facilities. Only 33.60% of the dental need in them is met.
2009
the year Glidewell says the original BruxZir Solid Zirconia was released
2009 · Technology · Restorative materials
BruxZir monolithic zirconia (2009): what Glidewell claims for it, and what the 10-year Clinicians Report study foundGlidewell
Glidewell's own account, in its May 1, 2018 press release: 'Upon its release in 2009, the original BruxZir Solid Zirconia offered dentists an all-ceramic alternative to traditional PFM restorations.' It was billed as 'more brawn than beauty' and as a tooth-colored alternative to full-cast and occlusal gold.
Mar 7, 2025
the comment period on the proposed rule closed
2025 · Regulation · Privacy and data
The proposed HIPAA Security Rule rewrite: encryption, MFA and 72-hour recovery, and still a proposal as of September 2026HHS Office for Civil Rights
Published at 90 FR 898 on January 6, 2025 (RIN 0945-AA22), the proposal would drop the addressable-versus-required distinction so every implementation specification binds, with written policies reviewed every 12 months.
500 mg
of amoxicillin three times a day for 3 to 7 days: the ADA panel's first-line oral regimen for an immunocompetent adult
2019 · Clinical · Antibiotics and prescribing
Antibiotic regimens for an adult odontogenic infection: the drug, the dose and the days once a drug is genuinely indicatedAmerican Dental Association; US Food and Drug Administration labels on DailyMed
First line, immunocompetent adult, no penicillin allergy: oral amoxicillin 500 mg three times a day for 3 to 7 days, or oral penicillin VK 500 mg four times a day for 3 to 7 days.
0.04 mg
the commonly cited epinephrine limit for an adult where caution is indicated, from the ADA's Hypertension topic page, not from any FDA label
2026 · Clinical · Anesthesia and sedation
Vasoconstrictors and the cardiac patient: what is in the cartridge, what the labels warn about, and where the 0.04 mg 'cardiac dose' actually comes fromUS Food and Drug Administration (approved product labeling, via DailyMed) and the American Dental Association
The 0.04 mg epinephrine 'cardiac dose' is not on any FDA label. It comes from the ADA's Hypertension oral health topic page, last updated November 1, 2022, which equates 0.04 mg to one cartridge at 1:50,000, two at 1:100,000 or four at 1:200,000, and cites Hardeman 2017 and the ADA Dental Drug Handbook 2019.
50 mSv
annual occupational limit, written as 5 rems total effective dose equivalent in 10 CFR 20.1201 and copied by the states
1991 · Regulation · Occupational safety
Occupational radiation dose limits and the dosimeter badge: 50 mSv a year, 5 mSv to a declared pregnancy, and a state rule that decides bothUS Nuclear Regulatory Commission and state radiation control programs
The annual occupational limit is 50 mSv, written in the federal rule as 5 rems of total effective dose equivalent, with 150 mSv to the lens of the eye and 500 mSv shallow dose to skin or extremities. A minor gets 10 percent of those. A member of the public gets 1 mSv a year.
50 mg/kg
amoxicillin for a child, 2 g for an adult, as a single oral dose before the procedure
2026 · Clinical · Antibiotics and prescribing
AAPD Antibiotic Prophylaxis for Dental Patients at Risk for Infection (2026): which children get premedication, which drug, and where it hands off to the AHAAmerican Academy of Pediatric Dentistry
Prophylaxis is for procedures that manipulate gingival tissue or the periapical region or perforate the oral mucosa, in patients at the highest risk of a bad outcome from endocarditis; the conditions and regimens are the AHA's 2021 tables, reprinted with permission.
Oct 6, 2010
the 510(k) was received by the FDA
2014 · Technology · Silver diamine fluoride
Silver diamine fluoride's FDA clearance (K102973, 2014): cleared for sensitivity in adults over 21; caries arrest is off-labelFDA Center for Devices and Radiological Health
The FDA record: 510(k) K102973, Silver Dental Arrest, applicant Cooley Consulting, Inc., received October 6, 2010, cleared July 31, 2014. Regulation 21 CFR 872.3260 (cavity varnish), product code PHR, Class II, prescription use.
3 business days
of scheduling lead time that triggers the estimate; less than that, only if the patient asks
2022 · Regulation · Payer and insurance law
The No Surprises Act in a dental office: the good faith estimate you owe self-pay patients, and the parts that never reach youCenters for Medicare & Medicaid Services (HHS)
Section 112 of the No Surprises Act and 45 CFR 149.610 require every licensed provider, dentists included, to give an uninsured or self-pay patient a written good faith estimate. HHS's FAQ Part 5 says dental providers are generally subject.
0.75 to 15 min
contact times published beside the 178 tuberculocidal products on EPA's List B
2026 · Regulation · Infection control
Surface disinfection in the operatory: the EPA registration, the tuberculocidal claim, and the contact time nobody honorsUS Environmental Protection Agency
Two levels reach environmental surfaces. Low level is an EPA-registered hospital disinfectant with no tuberculocidal claim; OSHA also wants HIV and hepatitis B label claims for clinical contact surfaces. Intermediate level carries a tuberculocidal claim and is required when a surface is visibly contaminated with blood.
34 mg
of lidocaine HCl in a 1.7 mL cartridge of 2% Xylocaine DENTAL; the label keeps a normal healthy adult below 500 mg and never above 7 mg/kg
2026 · Clinical · Anesthesia and sedation
Maximum doses of dental local anesthetics: what the six cartridge labels actually say, in mg, mg/kg and cartridgesUS Food and Drug Administration (approved product labeling, via DailyMed)
Lidocaine 2% with epinephrine, 1.7 mL cartridge, 34 mg: for normal healthy adults the amount should be kept below 500 mg and in any case should not exceed 7 mg/kg (3.2 mg/lb). 500 divided by 34 is 14.7 cartridges (2% Xylocaine DENTAL, Dentsply).
27.5 million
reporting companies FinCEN estimates were relieved of filing by the March 2025 rule
2026 · Regulation · Business regulationsuperseded
Beneficial ownership reporting is over for U.S. dental entities: FinCEN's August 2026 final rule, and the foreign companies that still fileFinCEN (U.S. Treasury)
Since March 26, 2025 no entity created in the United States has had to file a beneficial ownership report or update one. FinCEN's final rule, published August 14, 2026 at 91 FR 52508, made that exemption permanent.
0.7 mg/L
the U.S. fluoridation level the district court found to pose an unreasonable risk of reduced IQ in children
2024 · Regulation · Public health / fluoride
Food & Water Watch v. EPA: the fluoride ruling under TSCA, the Ninth Circuit's vacatur, and what EPA is doing insteadU.S. District Court, Northern District of California; U.S. Court of Appeals for the Ninth Circuit
The 80-page findings of September 24, 2024: fluoridation at 0.7 mg/L poses an unreasonable risk of reduced IQ in children under TSCA. The court wrote that the finding does not conclude with certainty that fluoridated water is injurious, and it did not order a ban.
May 19, 2021
FDA decision date for K210187, Overjet Dental Assist
2021 · Technology · Imaging and AI
Overjet Dental Assist and K210187: what the FDA's 2021 clearance lets an AI bone-level reader doU.S. Food and Drug Administration
The FDA found Overjet Dental Assist substantially equivalent on May 19, 2021: 510(k) number K210187, regulation 21 CFR 892.2050, product code LLZ, Class II, prescription use. The predicate was Ewoosoft's EZOrtho, K192888.
83%
minimum dental loss ratio for insured dental plans issued or renewed in Massachusetts
2022 · Business · Fee and payer data
The 83% dental loss ratio: Massachusetts sends the first dental insurance rebatesMassachusetts Division of Insurance
Massachusetts voters enacted M.G.L. c. 176X as Question 2 on November 8, 2022. It applies to dental benefit plans issued, made effective, delivered or renewed on or after January 1, 2024, and sets a minimum dental loss ratio of 83% for insured stand-alone dental plans.
3 years
the registration period for a practitioner, Schedules II through V
2026 · Regulation · Prescribing and controlled substances
DEA prescribing for a dentist: the three-year registration, what 21 CFR 1306.05 requires on the face of a prescription, and the rules by scheduleDEA Diversion Control Division
A dentist registers on DEA Form 224 and renews on 224a. The registration covers Schedules II through V, the application fee is $888, and the registration period is three years. Reregistration may be filed no more than 60 days before expiration.
$215,320
average net income of general practitioner dentists in 2025
2026 · Business · ADA Health Policy Institute
GP net income $215,320, revenue up 1.4%, expenses up 4.9%: HPI's 2026 trends in dentists' income, revenue and hoursAmerican Dental Association Health Policy Institute
Average net income of general practitioner dentists was $215,320 in 2025, which HPI calls unchanged after inflation; in constant 2025 dollars the series ran from $274,198 in 2010 to $213,453 in 2024. The GP median was $185,010.
1 + 6
good practice statement plus six clinical recommendations, the whole output of the panel
2017 · Clinical · Oral pathology and cancer screeningsuperseded
ADA guideline on potentially malignant disorders (2017): biopsy or refer, and not one adjunct earned a routine roleAmerican Dental Association Council on Scientific Affairs and Center for Evidence-Based Dentistry
One good practice statement: obtain an updated medical, social and dental history and perform an intraoral and extraoral conventional visual and tactile examination in all adult patients. No quality rating and no strength were assigned to it.
60.6%
of dentists somewhat or very confident about their own practice, Q2 2026
2026 · Business · ADA Health Policy Institute
60.6% confident in their practice, 26% not busy enough, 87.7% say hiring hygienists is very hard: HPI's Q2 2026 dentist pollAmerican Dental Association Health Policy Institute
Q2 2026: 60.6% of dentists were somewhat or very confident in their own practice, 50.2% in the dental sector and 39.7% in the U.S. economy, up from Q1 2026 (55.1%, 44.4%, 32.5%) but below Q4 2024 (67.5%, 62.6%, 56.3%).
July 5, 2024
the 2024 rule took effect; the coordinator and the notice of nondiscrimination were due within 120 days
2024 · Regulation · Privacy and data
Section 1557 for the dental office on Medicaid or Medicare: the notices, language access, coordinator and training the 2024 rule requires, and what a court vacatedHHS Office for Civil Rights
45 CFR part 92 applies to every health program or activity receiving federal financial assistance from HHS. The 2024 rule changed HHS's position so Medicare Part B now counts, and it covers all operations of a provider principally engaged in health care.
4
adjunct types in the series: cytology, vital staining, light-based, salivary
2026 · Clinical · Oral pathology and cancer screening
ADA oral cancer living guideline (2026): the exam and the biopsy stay, the adjuncts get a conditional noAmerican Dental Association
Every part carries the same good practice statements: examine every adult, and biopsy or refer any mucosal abnormality. Biopsy remains the reference standard for diagnosing OPMD and oral squamous cell carcinoma.
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