Clinical Cases, Chairside

Replacement of an unsound occlusal restoration in the molar region

Case by Dr. Aleksandra Łyżwińska, DMD

The maxillary left first molar had a Class I cavity on the occlusal surface restored with resin composite many years ago. The restoration needed to be replaced due to severe signs of wear and discolouration, as well as, the occurrence of secondary caries. After removal of the existing restoration and caries excavation, CLEARFIL™ SE BOND 2 was applied to the cavity to establish a stong and long-lasting chemical adhesion to the available enamel and dentin. Containing the original MDP monomer, the bonding agent is able to fulfill this task reliably. Subequently, the bottom of the cavity was filled with CLEARFIL MAJESTY™ ES Flow - Super Low A2, which shows an excellent marginal adaptation and provides for an even surface. The occlusal surface was built up with CLEARFIL MAJESTY™ ES-2 Classic A2 that blends in very well with the adjacent tooth structure, and characterized with some tints for an even more natural appearance.

Fig. 1. Initial intraoral photograph showing the defective restoration on the maxillary first molar after isolation with rubber dam.

Fig. 2. Occluso-lingual view of the initial situation revealing the wear effect.

Fig. 3. Tooth cavity with a matte surface after cavity preparation.

Fig. 4. Glossy cavity surface after application of CLEARFIL™ SE BOND 2.

Fig. 5. Appearance of the molar immediately after placement of a bottom layer of CLEARFIL MAJESTY™ ES Flow - Super Low A2 and modelling of the occlusal surface anatomy with CLEARFIL MAJESTY™ ES-2 Classic A2.

Fig. 6. Linguo-occlusal view of the situation.

Fig. 7. Appearance of the molar …

Fig. 8. … after the application of some tints.

Fig. 9. Result of the finishing …

Fig. 10. … and polishing procedure.

FINAL SITUATION

Fig. 11. Aesthetic treatment outcome after rubber dam removal …

Fig. 12. … and checking of the occlusal contact points.

Dentist:

DR. ALEKSANDRA ŁYŻWIŃSKA
Warsaw, Poland

Dr. Aleksandra Łyżwińska, DMD, is a passionate aesthetic and adhesive dentist. Driven by Evidence Based Dentistry, her goal includes using modern composite materials and bonding agents in her clinical practise. In addition to her primary job, she worked as a lecturer and an assistant professor at the Department of Conservative Dentistry and Endodontics of Medical University of Warsaw, her alma mater.