Selective adhesive luting: A novel technique for improving adhesion achieved by universal resin cements

Abstract

ObjectiveWe aimed to introduce the concept of “Selective adhesive luting—SAL” which is explained through clinical steps and supported by preliminary laboratory evidence.Clinical ConsiderationsCementation with rubber dam is difficult to perform in case of short abutment teeth and/or subgingival crown margins. By means of universal resin cements/universal adhesive systems, which can be employed in self‐adhesive as well as adhesive luting procedures, this paper presents a novel technique allowing clinicians to perform reliable cementation where rubber dam isolation is difficult. The SAL technique entails the application of a universal adhesive system only on easily accessible abutment surfaces, enabling simultaneous adhesive and self‐adhesive luting in different portions of the abutment. The SAL clinical workflow is explained through prosthodontic rehabilitation of maxillary right central incisor affected by microdontia and restored with a lithium‐disilicate crown. Furthermore, our laboratory microshear bond strength study supports the rationale behind SAL application demonstrating higher bond strength even when the adhesive resin is placed only on one portion of the cementation substrate.Clinical SignificanceThis article advocates the application of SAL technique in clinical situations where effective adhesive luting is uncertain, since it can improve the adhesion between the tooth and universal resin cements.

Assessing push‐out bond strength in re‐irradiated teeth: Universal resin cement performance in self‐etch and self‐adhesive modes

“…One of the most important characteristics of universal resin cements is the possibility of associating these two adhesive approaches to benefit from both strategies, depending on the clinical scenario 37 . Conversely, in the re‐irradiated specimens, there were no differences between the adhesive approaches.…”

“…However, in the specimens irradiated with 70 Gy, the universal resin cement in the SE mode had greater bond strength than in the SA mode in all root thirds. A recent laboratory study reported that the bonding performance of universal resin cement to dentin is improved when using their specific adhesive systems 37 …”

“…These cements can be employed in conjunction with their specific adhesive system (either etch‐and‐rinse or self‐etch [SE]) or in the self‐adhesive [SA] mode, depending on the clinical approach chosen 34–36 . In a laboratory study, 37 it reported promising results regarding the use of universal resin cements, particularly when combined with their specific adhesive system. However, the authors did not rule out their use in the SA mode, especially in cases where the sensitivity of a multistep technique could compromise the final clinical result 37 …”

“…In a laboratory study, 37 it reported promising results regarding the use of universal resin cements, particularly when combined with their specific adhesive system. However, the authors did not rule out their use in the SA mode, especially in cases where the sensitivity of a multistep technique could compromise the final clinical result 37 …”

“…However, there is no scientific evidence correlating the effect of cumulative doses of radiotherapy (locoregional recurrence) 11 on the bond strength of resin cement to intraradicular dentin 38 . Furthermore, recent advances in adhesive strategies, such as the use of universal resin cements, 34,36,37 may enhance the quality of life for oncological patients undergoing radiotherapy who require rehabilitation with fiberglass posts.…”