PMC3422068_01
Panoramic radiograph showing a totally impacted primary left mandibular second molar. The developing second premolar and an odontoma are positioned occlusally to the crown of the unerupted primary tooth
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It showed two developing, unerupted teeth; namely, the mandibual left second primary molar and its second premolar (Fig 1).
Panoramic radiograph after surgical extraction of the impacted primary left mandibular second molar and odontoma
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Based on this information, surgical extraction of the unerupted primary second molar and the radiopaque mass was planned to facilitate the eruption of the second premolar (Fig 2).
Occlusal view of lower passive lingual arch
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A passive lingual arch was placed in the lower arch as a space maintainer (Fig 3).
Panoramic radiograph showing the second premolar eruption path after 13 months
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A follow up panoramic radiograph showed the second premolar eruption path after 13 months (Fig 4).
The second permanent premolar teeth completely erupted
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After 31 months, the teeth had erupted in its normal position (Fig 5).