Early-stage caries (white spots), fluoroses, traumatic hypomineralizations and molar incisive hypomineralization (MIH) all present, to differing degrees, clinical symptoms involving white marks on the enamel. This article shows that proper diagnosis leads to better understanding of the three-dimensional aspects of the lesion, thereby ensuring the appropriate choice of a specific treatment.

In this 2nd part, the current treatment of white spot lesions by erosion/infiltration is presented, beginning with a reminder of the principle of superficial infiltration, which enables most early carious lesions, fluorosis and post-traumatic lesions to be treated. However, this technique has met with frequent failures in cases of MIH or deep lesions of traumatic origin or those associated with fluorosis. For this reason a new deep infiltration technique is proposed: thanks to its global treatment concept, this enables all white spots to be treated. The place of whitening in these treatment options is discussed, with explanations of the main reasons for its failures.

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