Resin-Bonded Fixed Partial Dentures (Maryland Bridges): Modern Bonding Protocols And Their Impact On Longevity

Ronika Nipane; Nilima Bukte; Zubia Ansari; Afsha Fadra; Zubiya Tarapurwala

Resin-Bonded Fixed Partial Dentures (Maryland Bridges): Modern Bonding Protocols And Their Impact On Longevity

Author(s)	Dr. Ronika Nipane, Dr. Nilima Bukte, Zubia Ansari, Afsha Fadra, Zubiya Tarapurwala
Country	India
Abstract	Replacement of missing anterior teeth is essential for restoring function, esthetics, and psychological well-being of patients. Among the available treatment options, resin-bonded fixed partial dentures (RBFPDS), commonly known as Maryland bridges, have emerged as a conservative and minimally invasive approach. Unlike conventional fixed partial dentures, RBFPDS require minimal tooth preparation and preserve the majority of the healthy tooth structure of abutment teeth. This review discusses the evolution of bonding protocols, materials, and clinical techniques that have enhanced the effectiveness of Maryland bridges over time. Early designs introduced in the 1970s demonstrated limited success due to weak bonding and frequent debonding. However, advances in adhesive dentistry—including improved enamel etching techniques, tribochemical silica coating, MDP-containing primers, and modern resin-based luting cements—have significantly improved bonding strength and clinical outcomes. Additionally, the development of advanced restorative materials such as zirconia, lithium disilicate (e.max), and fibre-reinforced composites, along with digital technologies like CAD/CAM systems and 3D printing, has enhanced the esthetics, precision, and durability of RBFPDS. These innovations have contributed to better marginal adaptation and reduced mechanical failure rates. Longevity of Maryland bridges has improved considerably with modern materials and bonding systems. Traditional designs demonstrated survival rates of approximately 50–60% at 10 years, primarily due to debonding. In contrast, contemporary adhesive systems and improved prosthetic materials have increased survival rates to 90–95% at 5 years and around 80–88% at 10 years. Proper case selection, adequate enamel bonding surface, favourable occlusion, and meticulous bonding protocols remain essential factors influencing long-term success.
Keywords	Keywords- Resin bonded fixed partial dentures, Maryland bridge, bonding system, advanced restorative material, Zirconia, adhesive
Field	Medical / Pharmacy
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-04-01

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Resin-Bonded Fixed Partial Dentures (Maryland Bridges): Modern Bonding Protocols And Their Impact On Longevity

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