2.4.2 Replacement The clinicians totally removed and replaced the defective restorations. After completing the cavity preparations, it was restored with a new resin composite (RC; Filtek Supreme; 3M ESPE). The elimination of the soft tooth tissue caries infection was done using carbide burs at high speed under full water irrigation. During the cavity preparation, no preventive extension or undercutting areas were created, and all of the cavity angles were rounded. In the deep dentin, a glass-ionomer liner was used (Vitrebond; 3M ESPE; USA). Adper Prompt L-Pop, (3M ESPE) was used per the manufacturer instructions, and RBC (Filtek Supreme; 3M ESPE) was applied by the incremental technique. The occlusion was checked, and the restorations were finished and polished following the manufacturer instructions.