MORPHOLOGIC CHANGES OF SYMPHYSIS FOLLOWING TREATMENT BY FUNCTIONAL APPLIANCE IN FEMALES WITH SKELETAL CL II MALOCCLUSION

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HOSSEINZADEH NIK T.; BAYAT A.

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Paper Information

Journal: JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI) Year:2005 | Volume:17 | Issue:1 (53) Page(s): 20-27

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Title

MORPHOLOGIC CHANGES OF SYMPHYSIS FOLLOWING TREATMENT BY FUNCTIONAL APPLIANCE IN FEMALES WITH SKELETAL CL II MALOCCLUSION

Author(s)

HOSSEINZADEH NIK T. | BAYAT A. | Issue Writer Certificate

Keywords

SYMPHYSIS - CHIN MORPHOLOGY - BONY CHIN - CL II MALOCCLUSIONQ4

Abstract

Background and Aim: One of the most important factors in the treatment of C1 II Div I malocclusions by functional appliances is the clinical examination of patient profile after forward positioning of mandible. So determining morphological changes of chin, after functional therapy, plays an important role in the prediction of facial profile. The aim of this study was to evaluate the morphological changes of mandibular symphysis after treatment by Farmand (Fa2) functional appliance in C1 II Div I malocclusions.Materials and Methods: In this before-after clinical trial, based on a similar study, 18 female patients, aged 10-12 years, with C1 II Div I malocclusion were investigated. These samples were under treatment for 12 months. Some angular & linear variables and Ricketts analysis were used to evaluate changes in geometric position of chin. Nanda and Aki analysis were utilized to determine morphological changes of symphysis. Paired - t test was used to compare the amount of differences of mean value pre and post treatment.Results: The findings observed following therapy were as follows;1. Depth of symphysis was increased (P= 0.01).2. Lower anterior facial height increased significantly (p< 0.005).3. Facial angle increased during treatment (P= 0.04).4. Increase in the mandibular symphysis contour was significant that could be due to forward movement of pogonion point (P= 0.002).5. Forward and downward movement of symphysis was frequently observed among patients.Conclusion: Following treatment by (Fa2) functional appliance, correction of profile is not only because of forward growth of mandible but also the remodeling of anterior chin contour. This type of treatment leads to better results in patients with normal and or low facial height due to an increase in lower anterior facial height.

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APA: Copy

HOSSEINZADEH NIK, T., & BAYAT, A.. (2005). MORPHOLOGIC CHANGES OF SYMPHYSIS FOLLOWING TREATMENT BY FUNCTIONAL APPLIANCE IN FEMALES WITH SKELETAL CL II MALOCCLUSION. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), 17(1 (53)), 20-27. SID. https://sid.ir/paper/55030/en

Vancouver: Copy

HOSSEINZADEH NIK T., BAYAT A.. MORPHOLOGIC CHANGES OF SYMPHYSIS FOLLOWING TREATMENT BY FUNCTIONAL APPLIANCE IN FEMALES WITH SKELETAL CL II MALOCCLUSION. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI)[Internet]. 2005;17(1 (53)):20-27. Available from: https://sid.ir/paper/55030/en

IEEE: Copy

T. HOSSEINZADEH NIK, and A. BAYAT, “MORPHOLOGIC CHANGES OF SYMPHYSIS FOLLOWING TREATMENT BY FUNCTIONAL APPLIANCE IN FEMALES WITH SKELETAL CL II MALOCCLUSION,” JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), vol. 17, no. 1 (53), pp. 20–27, 2005, [Online]. Available: https://sid.ir/paper/55030/en

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