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Online ISSN 1827-174X
Ferro A., Mignogna R. E., Chimenti C.
The non extraction technique according to N. Cetlin for the treatment of crowded and protrusive dentitions in class I and class II malocclusions is assessed. The intent of this article is to outline the approach to non extraction treatment with the following major clinical objectives: 1) space gaining in both maxillary and mandibular arches; 2) anchorage preservation throughout treatment and 3) intrusion of the maxillary incisors.