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Year : 2022  |  Volume : 9  |  Issue : 2  |  Page : 111-117

Evaluation of the effects of distal malocclusion activators on the craniofacial complex

1 Department of Pediatric Stomatology, Azerbaijan Medical University, Baku, Azerbaijan
2 Private Practice, Istanbul, Turkey
3 Department of Orthodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey

Correspondence Address:
Hakan Gurcan Gurel
Department of Orthodontics, Faculty of Dentistry, Biruni University, Istanbul
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jdrr.jdrr_196_21

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Introduction: Class II malocclusions are the most commonly seen, and therefore, the most commonly treated type of anomalies. Dental and skeletal factors are involved in the development of Class II malocclusions. The purpose of this study was to investigate whether or not there were any changes in the increased cranial base angle and cranial base dimensions, which have been reported to be among the morphological characteristics of Class II malocclusions, with functional orthopedic treatment and to evaluate effects of these changes on facial structures. Materials and Methods: The study was conducted on hand-wrist radiographs and lateral cephalometric radiographs of 50 patients taken at the beginning and at the end of treatment. The control group comprised 17 patients and the treatment group comprised 17 patients who were treated with a Class II division 1 activator and 16 patients who were treated with a combination of Class II division 1 activator and an Occipital Headgear (Hg). Results: Among the measurements for cranial base dimensions, only the increase in S-N in the treatment group was smaller than that in the control group. No significant differences were found among groups regarding the values of NSBa and NSAr angles, which are known to be cranial base angles. Conclusion: The increase in the S-N dimension being smaller in the treatment group brings about the idea that the activator treatment may influence maxillary development and consequently the nasomaxillary complex.

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