PMC7549752_01
Steps of restoration in Tooth 24. (A) Preoperative image of 24; (B) Preoperative radiographic image of 24; (C) Removal of carious enamel and dentine; (D) Placement of glass ionomer cement liner; (E) Injection of flowable composite into the floor of the cavity; (F) Construction of the distal proximal wall; (G) Removal of the sectional matrix; (H) Filling the cavity using the incremental technique; (I) Reconstruction of the morphology of 24; (J) Sealing the micro-cavitated occlusal fissure caries with a fissure sealant; (K) Postoperative bitewing radiograph; (L) Postoperative image taken three months after the restoration.
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The distal marginal ridge was destructed (Figure 1A). A bite-wing radiograph showed that the carious lesion on the distal side extended to the middle third of the dentine (Figure 1B). A cavity outline form was therefore established (Figure 1C). Products, St. Paul, MN, USA) was placed on the pulpal floor of the cavity for pulp protection (Figure 1D). Products, St. Paul, MN, USA) was injected into the floor of the cavity and light-cured (Figure 1E). Products, St. Paul, MN, USA), using the sectional matrix as a guide (Figure 1F). The sectional matrix and clamp were then removed to check any voids on the external surface of the proximal composite wall (Figure 1G). Specifically, the resin composite was stacked on a slope on the buccal side of the cavity to restore the morphology of the buccal cusp (Figure 1H). In addition, the occlusal surface, cusps, and marginal ridge were shaped during the procedure (Figure 1I). Products, St. Paul, MN, USA) (Figure 1J). Products, St. Paul, MN, USA). Post-operative bitewing radiography was performed to check the restoration (Figure 1K). Clinical examinations were performed, and the restoration was checked for marginal integrity, marginal adaptation, color, retention, and occlusion (Figure 1L).
PMC7549752_02
Steps of tunnel restoration in Tooth 15. (A) Occlusal view of 15 before operation; (B) Right bitewing radiography; (C) Occlusal view of the access to the mesial proximal caries; (D) Lateral view of the access to the mesial proximal caries; (E) Occlusal view of the cavity after caries removal; (F) Lateral view of the cavity after caries removal; (G) Restoration of the proximal wall of the cavity; (H) Selective acid-etching on enamel; (I) Bonding agents were applied to the cavity; (J) Restoration of the occlusal cavity; (K) Postoperative bitewing radiograph; (L) Occlusal view after three months.
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The marginal ridge was not involved (Figure 2A). The middle third of the dentine was involved (Figure 2B). Access to the caries on the mesial proximal surface was achieved through the fissure area of the occlusal surface (Figure 2C and D). The mesial marginal ridge remained intact (Figure 2E and F). Adhesive System, 3M ESPE Dental Products, St. Paul, MN, USA) and resin composite (Figure 2G). Selective acid-etching on the enamel was performed using 37% phosphate acid (Scotchbond Products, St. Paul, MN, USA) on the enamel wall of the cavity for 15 seconds, and then, the acid was rinsed thoroughly (Figure 2H). The tooth was partially dried with oil-free air. A universal bonding agent was then applied (Figure 2I) and light cured. The occlusal cavity was restored using composite (Filtek TM Z250 Resin Composite, 3M ESPE Dental Products, St. Paul, MN, USA) and the incremental layering technique (Figure 2J). Bitewing radiography was performed after the restoration process to check the marginal status of the restorative material (Figure 2K). Clinical photos of the restored tooth were taken (Figure 2L).