Abstract
In the management of ectopically erupting maxillary first permanent molars, achieving their normal eruption as well as preventing premature loss of the second primary molars which exhibit resorption of the roots is desired.
In order to meet this requirement to the extent possible, we have examined a new method for the early treatment of these cases of ectopic eruption, and then applied it in clinical trials.
The results were as follows:
1. A new treatment process and appliance for the ectopically erupting maxillary first permanent molar was developed. The mechanism of the appliance is such that it can separate the spring wire from the fixed appliance based on the Nance holding arch. Such separated spring wire can be activated with little damage to the second primary molars of which the roots were resorped.
2. This method was sufficiently effective in the treatment of cases which presented severe root resorption.
3. This method was also effective in the early treatment of unerupted maxillary first permanent molars which develop a strong tendency to erupt ectopically.
4. The periodic dental check-up in the erupting period of the first permanent molars in children was quite helpful not only in the caries management, but also in the early detection and early treatment of the ectopically erupting maxillary first permanent molars.
