Simplifying Adhesive Cementation: A Predictable Workflow for Posterior Indirect Restorations

Adhesive cementation is a critical step in the longevity of indirect posterior restorations. Successful outcomes depend on accurate diagnosis, proper tooth preparation, effective isolation and a simplified adhesive protocol.Contemporary universal adhesive systems and resin cements can help simplify the cementation workflow by reducing the number of clinical steps while maintaining a reliable adhesion. This clinical case illustrates a complete adhesive workflow for the replacement of a defective posterior restoration using Scotchbond™ Universal Plus Adhesive and RelyX™ Universal Resin Cement.

Preoperative radiograph showing carious lesion

Fig.1
Preoperative radiographic assessment showing the extent of the carious lesion and supporting treatment planning.

Defective posterior restoration before treatment

Fig.2
Initial clinical situation showing a defective posterior restoration with extensive structural compromise requiring adhesive rehabilitation.

After removal of the defective posterior restoration

Fig.3
The defective restoration and caries was carefully removed while preserving the maximum amount of healthy tooth structure.

Rubber dam isolation of the posterior tooth

Fig.4
Rubber dam isolation was established to provide optimal moisture control throughout the adhesive procedure.

Removal of residual restorative material

Fig.5
Careful removal of residual restorative material and unsupported tissues while preserving sound dental structure.

cavity configuration after removing fractured cusp

Fig.6
Cavity configuration after selective tissue preservation and before final preparation for adhesive inidrect rehabilitation.

Matrix placement for deep margin elevation

Fig.7
A matrix was placed deep into the sulcus to achieve isolation of the deep margin and facilitate anatomical reconstruction.

Selective enamel etching with phosphoric acid

Fig.8
Selective enamel etching was performed to optimize adhesion while preserving the benefits of the universal adhesive strategy.

Application of a universal adhesive

Fig.9
Application of Scotchbond™ Universal Plus Adhesive following the manufacturer’s recommended protocol under complete isolation.

Radiographic evaluation after cavity preparation

Fig.10
Radiographic verification confirming complete removal of the previous restoration and adequate cavity preparation before the indirect restorative phase.

Digital design of the indirect restoration

Fig.11
Digital evaluation of the restorative design, allowing verification of morphology, occlusion, and marginal integrity before fabrication of the overlay restoration.

Hydrofluoric acid etching of the ceramic restoration

Fig.12
Hydrofluoric acid etching of the internal ceramic surface to create a microretentive substrate for adhesive cementation.

Application of Scotchbond Universal Plus to the ceramic surface

Fig.13
Scotchbond™ Universal Plus Adhesive was applied to the conditioned ceramic surface, eliminating the need for a separate silane application when used in combination with RelyX™ Universal Resin Cement.

Prepared posterior tooth before definitive cementation

Fig.14
Prepared tooth after adhesive preparation, ready for rubber dam isolation.

Clinical try-in of the indirect ceramic restoration

Fig.15
Clinical try-in confirming the adaptation and morphology of the definitive restoration before cementation.

Complete isolation for adhesive cementation

Fig.16
Complete isolation ensured optimal moisture control during the adhesive cementation procedure.

Clinical try-in under rubber dam isolation

Fig.17
A clinical try-in was performed under complete isolation to verify marginal integrity, proximal contacts, and occlusal adaptation before cementation.

Air abrasion of the tooth preparation

Fig.18
Cleaning and air abrasion of the preparation with AquaCare® improved substrate quality before the adhesive cementation procedure.

Tooth before overlay cementation

Fig.19
Adjacent teeth were protected to avoid inadvertent surface treatment and preserve the integrity of the surrounding enamel during adhesive cementation.

Selective enamel etching before cementation

Fig.20
Selective phosphoric acid etching of the enamel optimized adhesion while maintaining the simplified universal adhesive protocol.

Active application of Scotchbond Universal Plus Adhesive

Fig.21
Active application of Scotchbond™ Universal Plus Adhesive enhanced substrate infiltration, promoting a reliable adhesive interface before cementation.

Cementation with RelyX Universal Resin Cement

Fig.22
RelyX™ Universal Resin Cement was used to simplify the cementation workflow while maintaining a predictable adhesive protocol.

Removal of excess resin cement

Fig.23
Careful removal of excess resin cement before final polymerization to facilitate marginal finishing.

Final posterior indirect ceramic restoration

Fig.24
Final restoration demonstrating harmonious integration with the surrounding dentition and accurate occlusal morphology.

Occlusal view of the final indirect restoration

Fig.25
Occlusal view showing natural anatomy, well-defined occlusal morphology, and functional integration of the indirect restoration.

Postoperative radiograph of the final restoration

Fig.26
Postoperative radiographic evaluation confirming complete seating, precise marginal adaptation, and the absence of residual excess cement.

Final occlusal view of the posterior restoration

Fig.27
Final occlusal view confirming accurate anatomy, stable proximal contacts, and functional integration of the definitive restoration.

Conclusions

Simplifying the adhesive cementation protocol without compromising fundamental biological and adhesive principles allows clinicians to achieve predictable, durable, and minimally invasive posterior indirect restorations.
Careful substrate management, meticulous isolation, and the use of contemporary universal adhesive systems contribute to an efficient clinical workflow while ensuring excellent marginal integrity, functional performance, and long-term restorative success.

Bibliography

  1. Fradeani M, Barducci G. Esthetic Rehabilitation in Fixed Prosthodontics. Volume 2: Prosthetic Treatment. Quintessence Publishing; 2008.
  2. Veneziani M. Adhesive restorations in the anterior dentition: biomimetic principles and minimally invasive preparations. Int J Esthet Dent. 2017.
  3. Magne P, Belser UC. Bonded Porcelain Restorations in the Anterior Dentition: A Biomimetic Approach. Quintessence Publishing; 2002.
  4. Magne P. Immediate dentin sealing: a fundamental procedure for indirect bonded restorations. J Esthet Restor Dent. 2005;17:144–154.
  5. Van Meerbeek B, De Munck J, Yoshida Y, et al. Buonocore Memorial Lecture. Adhesion to enamel and dentin: current status and future challenges. Oper Dent. 2003;28:215–235.
  6. Breschi L, Mazzoni A, Ruggeri A Jr, et al. Dental adhesion review: aging and stability of the bonded interface. Dent Mater. 2008;24:90–101.
  7. Ferrari M, Vichi A, Grandini S. Efficacy of different adhesive techniques on indirect ceramic restorations. Am J Dent. 2001.

RELATED CASES

Smile Design with Feldspathic Veneers

Minimal Preparation Smile Design with Feldspathic Veneers

Explore an anterior aesthetic case combining digital design, gingival contouring and feldspathic porcelain veneers for natural, harmonious results.