1. Period of the temporary teeth;Black,1936
2. A three-year clinical evaluation of composite resin and a high copper amalgam in posterior primary teeth;Nelson;ASDC J Dent Child,1980
3. Composite restorations for primary molars: results after four years;Oldenburg;Pediatr Dent,1987
4. Clinical evaluations of composite resin restorations in primary molars: a 4-year follow-up study;Tonn;JADA,1988
5. Assessing composite resin wear in primary molars: four-year findings;Vann;J Dent Res,1988