Sandwich Technique in Primary Teeth: A Review

The sandwich technique is a restorative method where the lost dentin is replaced with glass ionomer (GI) cement and the lost enamel is replaced with composite resin. Various modifications of this technique have been introduced in order to increase the longevity of this restoration. Hence, the aim of this review article was to assess the use of sandwich technique in primary teeth.   

After an initial screening of potentially relevant articles through electronic search of journals indexed in PubMed Central, Science Direct, Wiley Online Library, Springer and Google Scholar, articles on sandwich restorations in primary teeth were included.

Literature suggests that the sandwich technique is successfully practiced in carious lesions in permanent teeth; however, very few studies are done on primary teeth.

With the advent of newer resin cements and bonding agents, the sandwich technique is much simplified. However not enough clinical studies are available in the literature on the sandwich technique and its modifications in primary teeth. More studies need to be conducted in primary teeth using this restorative technique.