What Is a Maryland Bridge?

The Maryland bridge — also known as an adhesive bridge or resin-bonded bridge — is the most tooth-preserving form of a fixed dental bridge. Unlike a conventional dental bridge, the healthy neighbouring teeth do not need to be ground down, or only minimally so. Instead of bulky anchor crowns, the replacement tooth is bonded to the back (lingual surface) of the abutment tooth via wafer-thin ceramic or metal wings.

The principle is as elegant as it is simple: the thin wings are permanently bonded to the enamel of the neighbouring tooth using modern adhesive technique — a procedure that has been scientifically tested and refined in dentistry for decades. Because no healthy tooth tissue needs to be sacrificed, the Maryland bridge is considered the most substance-preserving fixed solution for replacing a single tooth.

Maryland bridges are predominantly used in the anterior region — that is, to replace individual incisors or canines. At our practice in Munich-Oberfoehring, we advise you in detail on whether a Maryland bridge is the optimal solution for your situation within the scope of dental restorations, and how it compares to a conventional dental bridge.

One of the most important decisions when planning a Maryland bridge concerns the number of bonding wings. A clear trend has emerged in recent years:

Single-wing Maryland bridge (one bonding wing): The replacement tooth is attached to only one neighbouring tooth. This variant is today's modern standard. Long-term clinical studies show that single-wing Maryland bridges in the anterior region achieve survival rates of over 90% at 10 years. The reason for the superior durability lies in biomechanics: with only one bonding wing, the bridge can move minimally without creating stress in the adhesive bond.

Two-wing Maryland bridge (two bonding wings): The replacement tooth is attached to both neighbouring teeth. At first glance, this may seem more stable — yet studies actually show a higher debonding risk. The reason: the two abutment teeth move slightly differently during chewing, placing the adhesive bond on one of the wings under stress. If one wing debonds unnoticed, caries can develop beneath it.

The current scientific evidence for the anterior region clearly favours the single-wing variant. At our practice, we therefore preferentially place single-wing all-ceramic Maryland bridges — the combination of longevity, aesthetics, and maximum substance preservation.

The Maryland bridge is not suited to every situation — but where it fits, it is often the best solution. The ideal indications are:

• Single missing front tooth: A missing incisor or canine in the upper or lower jaw — the classic indication for a Maryland bridge.
• Healthy, intact neighbouring teeth: When the abutment teeth are caries-free and uncrowned, there is every reason not to grind them down — the Maryland bridge preserves the valuable tooth structure.
• Young patients: In adolescents and young adults whose jaw growth is not yet complete, a dental implant is often not yet possible. The Maryland bridge reliably bridges this waiting period and can later be replaced by an implant.
• Alternative to an implant: When an implant is not desired or feasible for medical, anatomical, or personal reasons, the Maryland bridge offers an excellent fixed alternative.

Contraindications and limitations:

• Deep bite: With a pronounced deep bite, there is insufficient space for the bonding wing on the back of the abutment tooth.
• Severe teeth grinding (bruxism): Excessive biting forces significantly increase the debonding risk.
• Multiple consecutive missing teeth: The Maryland bridge is generally suitable only for replacing a single tooth.
• Posterior teeth with high chewing loads: In the posterior region, the forces are too great for an adhesive attachment.

Material and bonding technique are critical for the aesthetics and longevity of a Maryland bridge. At our practice, we preferentially use the most modern material concept:

All-ceramic (zirconia framework with layered porcelain): This is today's gold standard. A framework of high-strength zirconia forms the base, over which individually layered veneering ceramic is applied. The result: a replacement tooth that is indistinguishable from natural teeth in colour, translucency, and shape. The zirconia bonding wing is attached to the back of the abutment tooth and is completely invisible from the front.

Metal wing designs (base metal alloys): Older Maryland bridges were fabricated with metal wings from non-precious alloys. This variant is still occasionally used and offers good durability, but is aesthetically inferior — the metal can show through the enamel, giving the abutment tooth a greyish appearance.

The bonding technique (adhesive technique): The bonding step is the most sensitive part of the entire treatment. The enamel of the abutment tooth is pre-treated with hydrofluoric acid and silane or with aluminium oxide air abrasion. The bonding wing receives a special surface conditioning. A dual-cure luting composite is then applied, creating a chemical-mechanical bond between tooth and ceramic. This technique is extremely technique-sensitive — experience and absolute dry-field isolation (rubber dam) are essential for a lasting result.

Treatment with a Maryland bridge is considerably less involved than a conventional bridge. Typically, only two appointments spaced 1–2 weeks apart are needed:

Appointment 1 — Preparation and impression (approx. 30–45 minutes):

• Consultation and final discussion of the treatment plan
• Minimal preparation of the abutment tooth: only a wafer-thin layer of enamel on the back is roughened or a shallow recess is created — far less than with a conventional bridge, where the entire tooth is ground down circumferentially
• Precision impression or digital intraoral scan
• Shade matching for a perfect colour match

Laboratory phase (1–2 weeks): Our master dental laboratory fabricates the Maryland bridge with the highest precision. Shape, shade, and surface texture are individually matched to your teeth.

Appointment 2 — Adhesive placement (approx. 45–60 minutes):

• Try-in of the finished Maryland bridge: checking fit, shade, and occlusion
• Rubber dam isolation: Absolute dry-field isolation of the working area — critical for the durability of the adhesive bond
• Surface conditioning of tooth and ceramic wing
• Adhesive bonding with dual-cure luting composite
• Excess removal and final polishing

The entire process is considerably gentler than with a conventional dental bridge: less tooth substance is lost, anaesthesia is often unnecessary, and no provisional is required.

The Maryland bridge is one of the most thoroughly studied dental restorations. The scientific evidence is compelling:

Long-term results for the single-wing Maryland bridge:

• Survival rate at 5 years: 95–98%
• Survival rate at 10 years: 90–95%
• Survival rate at 15 years: 85–90%

These figures are comparable to conventional bridges and single-tooth implants — yet with significantly less intervention in the tooth structure.

The most common risk: debonding (loosening of the adhesive bond)

Loosening of the adhesive bond is the most frequent complication — but also the most benign: when a Maryland bridge debonds, it can in most cases simply be re-bonded. The great advantage over a conventional bridge: the abutment tooth remains undamaged. With a conventional bridge that loosens, by contrast, there is a risk of caries on the ground-down abutment tooth.

Comparison with other restorations:

• Conventional bridge: Similar survival rates, but irreversible substance loss on two healthy abutment teeth
• Single-tooth implant: Highest long-term survival rate (95%+ at 10 years), but requires a surgical procedure and sufficient jawbone
• Maryland bridge: Most substance-preserving approach, re-bondable if debonding occurs, reversible — the path to an implant remains open

In the German insurance system, the Maryland bridge is classified as alternative dental restoration. This means: you receive the same fixed subsidy based on the dental findings as for a conventional bridge (same finding = same subsidy), but bear the additional costs for the different construction yourself.

How cost reimbursement works:

• Statutory health insurance pays the fixed subsidy that would also be granted for a conventional bridge
• With a continuously maintained bonus booklet, the subsidy increases: +20% after 5 years, +30% after 10 years of regular preventive care
• The out-of-pocket share typically ranges from 400 to 1,100 euros depending on material and design

Cost comparison: A Maryland bridge is generally significantly less expensive than a dental implant (total implant cost including crown: 2,000–3,500 euros) and comparable in price to a conventional all-ceramic bridge — with considerably less substance loss.

Before treatment begins, we prepare a detailed treatment and cost plan that you submit to your health insurer for approval. This way, you know your exact out-of-pocket share before treatment starts. The consultation and plan preparation are of course complimentary at our practice.

The Maryland bridge is a technique-sensitive restoration that demands experience in adhesive bonding and the utmost care. At our practice in Munich-Oberfoehring, we offer you optimal conditions for a long-lasting result:

• Adhesive bonding expertise: Dr. Christina Dickel has extensive experience in the adhesive bonding of ceramic restorations — the foundation for a durable Maryland bridge.
• All-ceramic as standard: We preferentially use zirconia frameworks with individual ceramic veneering — for an aesthetic result that is indistinguishable from natural teeth.
• Master laboratory precision: Our experienced master dental laboratory fabricates every Maryland bridge with the highest precision. The close collaboration between practice and laboratory ensures optimal results.
• Comprehensive alternative consultation: Maryland bridge, implant, or conventional bridge? We advise you honestly and transparently on all options and their advantages and disadvantages for your individual situation.
• CBCT 3D diagnostics: When needed, we use three-dimensional imaging for precise treatment planning.
• Sedation for anxious patients: With nitrous oxide and oral sedation, we enable even anxious patients to undergo stress-free treatment.

Book a complimentary initial consultation — we take the time to find the best solution for your missing tooth together.