Dental Journal (Majalah Kedokteran Gigi)
ISSN 1978-3728
Vol. 46 / No. 4 / Published : 2013-12
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Original Article :
Facial soft tissue profile on borderline class i malocclusion between extraction and non-extraction orthodontic treatment
Author :
- Pinandi Sri Pudyani*1
- Yenni hanimastuti*2
- Department of Orthodontics, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta-Indonesia
- Department of Orthodontics, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta-Indonesia
Abstract :
Background: The balanced of facial profile in harmony has became the main goal of orthodontic treatment. Determination of orthodontic treatment plan with or without extraction remains controversial, especially in borderline cases, so it requires more data and information to establish appropriate treatment plans in order to obtain optimal treatment results. Purpose: To determine the facial soft tissue changes in the borderline class I cases treated with and without extraction on post-orthodontic treatment, and to compare the facial soft tissue changes between the extraction and nonextraction treatment. Methods: The study was conducted on 28 lateral cephalogram, divided into two groups; 13 cases with extraction, and 15 cases without extraction. Criteria for selecting the subjects were as follows; class I malocclusion treated with straightwire technique, skeletal class I, age between 18-30 years old, normal overjet 2-4 mm, arch length discrepancy between 2.5-5 mm, Index of Fossa Canine (IFC) between 37% - 44%, not using extraoral devices, and treated with extraction of 4 sec ond premolar or without extraction. Each cephalogram, before and after orthodontic treatment have measured on nasolabial angle, labiomental angle, and linear position of the upper and lower lip to ERicketts line. Results: In extraction cases, there was a change on upper and lower lips positions (p<0.05), but there were no changes on nasolabial angle and labiomental angle (p>0.05). In non extraction cases, there were no changes in nasolabial angle, labiomental angle, and lips positions (p>0.05). Both of groups also have indicated that there were no changes on linear position of the upper and lower lip (p>0.05). Post-orthodontic treatment indicated a significant differences between extraction and nonextraction cases on nasolabial and labiomental angle, and lips position (p<0.05). Conclusion: The facial soft tissue profile changes with the extraction was more retruded than nonextraction treatment.
Keyword :
borderline cases , facial profile soft tissue, extraction, non extraction,
References :
Konstantonis D,(2011) The impact of extraction vs nonextraction treatment on soft tissue changes in class I borderline malocclusions - : Angle Orthod
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Volume : 46 / No. : 4 / Pub. : 2013-12 |
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