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20.02.2024 | Original Article

Third molar angulation and retromolar space after functional orthodontic treatment

Evaluation of panoramic radiographs after monoblock or Herbst appliance

verfasst von: Asst. Prof. Dr. Esra Bolat Gümüş, Prof. Dr. Elçin Esenlik, DDS PhD, Göksu Emek Kayafoğlu, DDS, Mustafa Yıldırım, DDS

Erschienen in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie | Sonderheft 2/2024

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Abstract

Purpose

The aim of this respectively cohort study was to evaluate the lower second and third molars and canine angulations, retromolar space and occlusal relationships after functional orthodontic treatments with the monoblock or Herbst appliance using panoramic radiographs.

Methods

Pre- and posttreatment cephalometric and panoramic radiographs of 133 patients (mean age 13.89 ± 1.14 years) treated non-extraction with monoblock (n: 44), Herbst (n: 45) and fixed orthodontic appliances (control group; n: 44) were included to the study. Dental and skeletal measurements were performed on cephalometric radiographs. The angle between the third and second molars, and canines with the lower border of the mandible and the occlusal plane, gonial angle, the angle between the third and second molars and the retromolar space width were assessed on pre- and posttreatment panoramic radiographs. Paired and independent t tests were used for the statistical analysis of the data for intragroup and intergroup comparisons.

Results

Functional treatment with both the monoblock and the Herbst appliances resulted in improvement of skeletal class II relationships. Retromolar space significantly increased in the functional appliance groups compared to the control group (p ≤ 0.001), but improvement of the angulations of posterior teeth was significant only in the monoblock group (p ≤ 0.001).

Conclusion

While both the Herbst and monoblock appliances led to an increase in retromolar space, monoblock treatment resulted in more favorable angulation of the third molars compared to the Herbst treatment.
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Metadaten
Titel
Third molar angulation and retromolar space after functional orthodontic treatment
Evaluation of panoramic radiographs after monoblock or Herbst appliance
verfasst von
Asst. Prof. Dr. Esra Bolat Gümüş
Prof. Dr. Elçin Esenlik, DDS PhD
Göksu Emek Kayafoğlu, DDS
Mustafa Yıldırım, DDS
Publikationsdatum
20.02.2024
Verlag
Springer Medizin
Erschienen in
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie / Ausgabe Sonderheft 2/2024
Print ISSN: 1434-5293
Elektronische ISSN: 1615-6714
DOI
https://doi.org/10.1007/s00056-024-00516-3

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