updates | February 25, 2026

What is a Class 1 dental restoration?

1. Class I: Cavity in pits or fissures on the occlusal surfaces of molars and premolars; facial and lingual surfaces of molars; lingual surfaces of maxillary incisors (Class I corresponds to surfaces of a posterior tooth you can clinically see—occlusal/lingual/buccal surfaces.Click to see full answer. Also, what is a Class 1 restoration? Cavity classifications Class I Caries affecting pit and fissure, on occlusal, buccal, and lingual surfaces of molars and premolars, and palatal of maxillary incisors. Class II Caries affecting proximal surfaces of molars and premolars. Class III Caries affecting proximal surfaces of centrals, laterals, and cuspids.Subsequently, question is, what is a Class IV restoration? Restorative Technique – Class IV This Class IV technique first takes you through preparation of tooth structure. Then you will see the placement of a microhybrid or nanofill composite to replicate the lingual shelf. This stage is so important because you are building the foundation for the restoration. Besides, what is dental classification? There are four classes of teeth: incisors, canines, premolars, and molars. Premolars are found only in permanent teeth; there are no premolars in deciduous teeth. Within each class, teeth may be classified into different traits. Incisors are divided further into central and lateral incisors.How long does tooth restoration last?Gold fillings last the longest, anywhere from 15 to 30 years. Silver amalgam fillings can last from 10 to 15 years before they need to be replaced. Composite resin fillings don’t last as long. You may need to replace them every five to seven years.