Case of the Week: Ectopic Eruption & Internal Resorption 5


This week I have a fun case of 2 finds on 1 radiograph. This bitewing radiograph shows internal resorption (enlarged pulp chamber) of the maxillary left deciduous second molar and ectopic eruption of the mandibular left first premolar into the deciduous second molar.  Check it out below. 🙂

ectopic eruption and internal resorption bitewing radiographIf you have any questions or comments, please leave them below.  Next week is spring break and I will be using it as a little breather so no posts for one week 🙁 . Thanks and enjoy!



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5 thoughts on “Case of the Week: Ectopic Eruption & Internal Resorption

    • Dr. Shawneen Gonzalez Post author

      Yes, the mandibular first premolar is in the general position it is supposed to be when it is erupting; however, it is erupting into the mesial aspect of the primary second molar causing resorption of the tooth. Due to this altered eruption pattern, this is ectopic eruption. Please let me know if you have any other questions. Thanks.

  • Jennifer

    I have a couple of images for you. I’ll send them today.

    Along the top of the radiograph, apical to the internally resorbed deciduous molar, there is a radiopaque semicircular contour. What is that structure?

      • Dr. Shawneen Gonzalez Post author

        Whoops missed that question earlier. That is the maxillary second premolar cusp. 🙂