Clinical Evaluation of Resin Composite CAD/CAM Restorations Placed by Undergraduate Students

Abstract

To evaluate the clinical outcomes of resin composite CAD/CAM restorations in a prospective cohort study, and to assess patient and operator satisfaction after restoration placement, 59 indirect resin composite were placed by supervised undergraduate students, of which 43 restorations were followed over a mean period of 28 months (14–44 months) and evaluated using USPHS criteria. Patient and operator satisfaction levels were assessed using a visual analogue scale (VAS) after restoration placement. A total of 37 patients and 47 restorations were included for further study. Four teeth were extracted—three due to extensive drug-induced secondary caries in the same patient, and one tooth due to large periapical periodontitis after 44 months of service. The overall survival rate was 91.4%, and success rate was 87.2%. Differences between baseline and endpoint scores were significant for marginal discoloration (p < 0.05) and adaptation (p < 0.001). Color match (p < 0.05) and surface texture (p < 0.001) differed significantly, affecting all restoration types. VAS scores for patient and operator satisfaction showed a significant rank correlation (p < 0.01), and pairwise comparison showed significant differences for mean overall patient and operator VAS scores (p < 0.001). Lava Ultimate CAD/CAM may be considered a suitable material for overlays and endocrown restorations when combined with IDS, air abrasion, and MDP-containing adhesive systems. Marginal disintegration may present in inlays and onlays over time.

Impact of CAD/CAM Material Thickness and Translucency on the Polymerization of Dual-Cure Resin Cement in Endocrowns

“…The conservation of tooth is advantageous for the long-term health and structural integrity of the tooth. Additionally, the procedure for placing an endocrown tends to be simpler and more expedient than that for placing a conventional crown [ 5 ]. Endocrowns exhibit excellent mechanical strength and durability, particularly those fabricated from advanced ceramic materials and resin composites [ 6 ], which makes them notably effective in restoring the function and aesthetics of damaged molars and premolars.…”

Effect of Additional Dry Heat Curing on Microflexural Strength in Three Types of Resin Composite: An In Vitro Study

“…In order to enhance the resin composite properties as an indirect material and to counteract some problems (polymerization shrinkage, complete or partial fracture of restoration margins, and color changes), this material presents new techniques that are proposed after light curing [10][11][12][13]. Monteza [4], Grazioli [14], and other authors [15][16][17] have proposed subjecting resin composites to complementary heat curing processes; thus, this increases their conversion degree and generates greater rigidity and resistance to color changes and fractures [18,19].…”