14.2 Dental, Vision, and Limited Benefit Plans
Key Takeaways
- Dental plans use a 100/80/50 class structure (preventive/basic/major) with a calendar-year annual maximum and a separate orthodontia lifetime max.
- Dental's annual maximum caps what the plan pays (opposite of major medical's out-of-pocket maximum, which caps what the insured pays).
- Vision plans pay scheduled exams, lenses, and frame allowances but exclude medical/surgical eye disease.
- Limited benefit plans (dental, vision, hospital indemnity, specified disease, short-term) supplement and are not ACA minimum essential coverage; disclosure is required.
- The COB birthday rule makes primary the plan of the parent whose birthday month/day is earlier in the year; total COB payment never exceeds 100%.
Dental, Vision, and Limited Benefit Plans
These products fill gaps that comprehensive major medical leaves open. They are usually inexpensive, narrowly defined, and rich in exam-tested terminology.
Dental Insurance Classes of Service
Dental plans group covered procedures into classes, each with its own coinsurance level. The standard 100/80/50 pattern is heavily tested.
| Class | Examples | Typical plan pays |
|---|---|---|
| Class I — Preventive/Diagnostic | Cleanings, exams, x-rays, fluoride | 100% (often no deductible) |
| Class II — Basic/Restorative | Fillings, extractions, root canals, periodontics | 80% |
| Class III — Major | Crowns, bridges, dentures, inlays | 50% |
| Class IV — Orthodontia | Braces | 50% to a separate lifetime max |
Key dental features:
- Annual maximum — a calendar-year cap (commonly $1,000-$2,000) above which the insured pays everything. Note this is the opposite of major medical, where the insurer pays everything above the out-of-pocket max.
- Orthodontia lifetime maximum — a separate, once-per-lifetime dollar cap, usually only for dependent children.
- Scheduled (table of allowances) vs. nonscheduled (comprehensive/UCR) — scheduled plans pay a fixed dollar per procedure; nonscheduled plans pay a percentage of usual, customary, and reasonable charges.
- Combination plan — preventive nonscheduled (percentage), basic/major scheduled.
- Integrated deductible — applies to both dental and the medical plan together; a stand-alone dental deductible applies only to dental.
- Predetermination of benefits — a non-binding pre-treatment estimate for expensive work.
Worked Numeric — Dental
A dental plan: $50 deductible, Class I 100%, Class II 80%, Class III 50%, $1,500 annual max. The insured has a $90 cleaning (Class I), a $400 root canal (Class II), and a $1,200 crown (Class III).
- Cleaning: 100%, deductible usually waived on preventive → plan pays $90.
- Root canal: deductible $50 applies first → $400 - $50 = $350 x 80% = $280.
- Crown: $1,200 x 50% = $600.
- Total plan pays = $90 + $280 + $600 = $970, under the $1,500 annual max, so all is payable.
Dental Plan Types and Providers
Dental coverage is delivered through several arrangements the exam tests by name:
- Dental indemnity (fee-for-service) — pays a percentage of UCR; the insured may use any dentist.
- Dental PPO — a network of dentists at negotiated fees; out-of-network costs more.
- Dental HMO / capitation plan — the insured uses a network dentist who is paid a fixed per-member amount; copays are low but provider choice is restricted.
- Discount/referral dental plan — not insurance at all; a membership that buys access to discounted fees.
Most group dental plans impose a waiting period (e.g., 6-12 months) before major (Class III) services and a missing-tooth or replacement limitation.
Vision Insurance
Vision plans cover routine eye exams, lenses, frames, and contacts on a defined schedule — typically one exam and one set of lenses per year, frames every other year. They use allowances (a frame allowance such as $150, with the insured paying any excess) and copays for exams and materials. Vision plans exclude medical/surgical eye disease, which belongs to major medical (e.g., cataract surgery, glaucoma treatment). LASIK is usually offered only as a discount, not a covered benefit.
Limited Benefit (Supplemental) Plans
Limited benefit plans pay narrow, defined amounts and are sold to supplement — never replace — comprehensive coverage. Regulators require a prominent disclosure that the plan is not major medical and is not ACA-compliant minimum essential coverage.
- Dental and vision (above) are themselves limited-benefit excepted benefits.
- Hospital indemnity — a fixed dollar per day of confinement (covered in 14.3).
- Specified disease / dread disease — pays only for a named condition such as cancer (covered in 14.3).
- Short-term medical — temporary major-medical-style coverage between jobs; underwritten, not guaranteed issue, and not ACA-compliant.
- Prescription drug cards, hearing plans.
Group Dental/Vision Provisions
Group plans often carry a waiting period before major services and an orthodontia exclusion for adults. Coordination of benefits (COB) applies when a person is covered by two dental plans (e.g., both spouses' employers). The birthday rule decides which plan is primary for a dependent child: the plan of the parent whose birthday (month/day) falls earlier in the calendar year is primary.
Worked Numeric — COB
A child has a $1,000 covered dental bill. The father's plan (birthday March 3) pays 80%; the mother's plan (birthday June 10) pays 80%. Under the birthday rule the father's plan is primary: it pays 80% x $1,000 = $800. The mother's plan is secondary and may pay the remaining $200 (up to its own limits), so the family can reach $0 out of pocket — but COB never lets total payment exceed 100% of the bill.
Trap: The birthday rule uses the month and day, not which parent is older. And dental's annual maximum (plan stops paying above it) is the mirror image of major medical's out-of-pocket maximum (plan starts paying everything above it).
Dental Plan Structure and the Three Service Classes
Dental insurance organizes covered procedures into three tiers the exam expects you to rank by typical coinsurance:
| Class | Examples | Typical coverage |
|---|---|---|
| I - Preventive/diagnostic | Cleanings, exams, X-rays | 100%, often no deductible |
| II - Basic restorative | Fillings, extractions, root canals | 80% after deductible |
| III - Major | Crowns, bridges, dentures | 50% after deductible |
Orthodontics is usually a separate rider with its own lifetime maximum. Dental plans carry an annual benefit maximum (e.g., $1,500) rather than the open-ended ceilings of medical plans, and may scale preventive coverage up the longer a member stays enrolled.
Vision and Limited-Benefit Plans
Vision plans cover routine eye exams, lenses, and frame allowances on a scheduled basis. Limited-benefit (supplemental) plans pay fixed, defined amounts and are not comprehensive major medical - they pay a set dollar figure per service regardless of the actual charge. Because they are not ACA-compliant essential coverage, they must clearly disclose that they are supplemental. They appeal to budget-conscious buyers who want predictable, low-premium coverage for routine costs.
A dental plan has a $50 deductible, pays Class II basic at 80%, and waives the deductible on preventive. The insured has a $1,000 root canal (Class II) this year, the first claim of the year. How much does the plan pay?
A dependent child is covered by both parents' dental plans. The father's birthday is September 12; the mother's birthday is April 4. Under the coordination-of-benefits birthday rule, which plan is primary?