Panoramic Findings for Predicting Eruption of Mandibular Premolars Associated With Dentigerous Cyst After Marsupialization
Purpose
The purpose of this study was to investigate the eruption of mandibular premolar teeth associated with dentigerous cysts.
Patients and Methods
A total of 60 cyst-associated teeth in the mandibular premolars were examined retrospectively by using normalized panoramic radiographs. The subjects were divided into 2 groups: the erupted group, in which the teeth had erupted spontaneously after marsupialization, and the nonerupted group. Patient age, as well as impacted premolar angulation to the adjacent teeth axes, the cusp depth, space/tooth size, eruption period and cyst size, as measured on initial images, were used as parameters.
Results
Using a logistic model of our data, we found that patient age less than 10 years, cusp depth less than 5.1 mm, angulations less than 25°, and space/tooth size greater than 1.0 enhanced the success of eruption.
Conclusion
Our findings present predictors of successful eruption of impacted mandibular premolars associated with dentigerous cysts after marsupialization.
⁎Research Fellow, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
†Assistant Professor, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
‡Postdoctoral Fellow, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
§Graduate Student, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
∥Professor and Chair, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
Address correspondence and reprint requests to Dr Kawakami: Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
ABSTRACT