In 1984, the dissertation ‘The incredible keratocyst’ was published. A postscriptum of this dissertation introduced a new and simplified approach in the treatment of keratocysts. Keratocysts are disreputable for a high recurrence prevalence and the new method is minimizing the chance of recurrence. The essence of the method is fixation of the cystwall with a modified Carnoy’s solution before enucleation. During the past 25 years no new developments have been published concerning surgical treatment of keratocysts, which are essential divergent of this method. However, some authors have objections to the use of the modified Carnoy’s solution because of feasible pathologic side effects. Based on research data and experiences of the author, it can be concluded that the fixing agent may be used without any risk.