is the sentence lengthy? Thx :-D
Several recent studies have shown that there is a certain relationship between premolar extraction and the eruption of mandibular third molar. In this article, the relationship between extraction treatment and eruption of the mandibular third molars is reviewed.

Question

is the sentence lengthy? Thx :-D
Several recent studies have shown that there is a certain relationship between premolar extraction and the eruption of mandibular third molar. In this article, the relationship between extraction treatment and  eruption  of  the  mandibular  third  molars  is  reviewed.

Answer

The length is fine. I would make a couple of corrections:
Several recent studies have shown that there is a certain relationship between premolar extraction and the eruption of THE  mandibular third molar(s?). In this article, the relationship between extraction treatment and THE eruption of the mandibular third molars is reviewed.

Answers · 2

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