Resin-based cements – properties affecting clinical success of indirect restorations
– As a clinician wanting to ensure the best possible result, it is important to use the appropriate cement the correct way.
For the esthetic outcome of the restorations, resin-based cements come in different colors and translucencies.
Many clinicians prefer polymer-based, also known as resin-based, cements for cementing indirect restorations especially if the restorations are made of all ceramic materials. A recent paper looks into cement properties that affect clinical success of indirect restorations.
– The cement has many important roles, like for example prevent loosening of the restoration and provide optical matching with tooth substance or mask discoloration. As a clinician wanting to ensure the best possible result, it is important to use the appropriate cement the correct way. Dr. Bjørn Einar Dahl and I wanted to summarize the most important aspects, which were presented in an article, explains Mina Aker Sagen.
Sagen, previously a scientist at the University of Oslo, came to NIOM for more than a year ago. Her background as a dental surgeon with a specialist degree in prosthodontics gives her important insight into the clinical world.
Indirect restorations
– To reach clinical success with indirect restorations, we strive for both durability and pleasing esthetics. We want to provide restorations that stay retained to the tooth for years to come, but also, the color and translucency must match the neighboring teeth. The cement is of outermost importance to reach these goals, Sagen says.
In each case, the selection of the correct cement must be based on restoration type and material. Pre-treatment of both tooth substance and the inner surface of the restoration assures mechanical and chemical interaction with the cement. Further, the cement composition and strength, depth and degree of conversion, and it`s water sorption affects the ability to retain the restorations. For the esthetic outcome of the restorations, resin-based cements come in different colors and translucencies.
– Additionally, the cement layer should be thin to ensure both good retention and optimal esthetics, Sagen says in closing.
Photo by istock: An esthtetically pleasing result is always the aim after indirect restorations.
Reference:
Resinbaserte sementer – egenskaper som påvirker klinisk suksess av indirekte restaureringer
Sagen MA, Dahl BE
Nor Tannlegeforen Tid. 2022; 132: 716-22.
NIOM Newsletter April 2023