Prado C, Garone Netto N
Fac. de Odontología, Universidade de São Paulo.
Rev Odontol Univ Sao Paulo. 1990 Oct-Dec;4(4):329-33.
The authors studied a fissure sealant retention in deciduous molars and first permanent molars. The assessment of the sealant retention was performed at six months intervals. After eighteen months study period a greater sealant on the deciduous molars was observed, in a decreasing order as follow: upper and lower first permanent molars. It was also shown that greatest loss of sealant occurred on the disto occlusal pit of the upper first permanent molars.