Malocclusion, Angle Class II, Division 1 Clinical Trial
Official title:
Evaluation of Labial Versus Lingual Biocreative Therapy for en Masse Retraction of Maxillary Anterior Teeth: A Randomized Clinical Trial
Verified date | January 2019 |
Source | Ain Shams University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The purpose of this study is to compare the effectiveness and efficiency of labial versus lingual biocreative therapy in achieving en masse retraction of the maxillary anterior teeth in subjects with class II malocclusion requiring upper first premolar extraction.
Status | Completed |
Enrollment | 30 |
Est. completion date | September 30, 2018 |
Est. primary completion date | April 30, 2018 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 25 Years |
Eligibility |
Inclusion Criteria: - Full permanent dentition (excluding third molars) - Angle class II malocclusion with increased overjet. Treatment plan includes extraction of the upper first premolars and retraction of the maxillary anterior teeth with maximum anchorage. Exclusion Criteria: - • Systemic diseases (examples include bleeding disorders, bisphosphonate therapy, chemotherapy, and radiotherapy) or craniofacial anomaly. - Previous orthodontic treatment. - Obvious periodontal disease and signs of bone loss. |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Ain Shams University |
Chung KR, Cho JH, Kim SH, Kook YA, Cozzani M. Unusual extraction treatment in Class II division 1 using C-orthodontic mini-implants. Angle Orthod. 2007 Jan;77(1):155-66. — View Citation
Chung KR, Kim SH, Kook YA, Choo H. Anterior torque control using partial-osseointegrated mini-implants: biocreative therapy type II technique. World J Orthod. 2008 Summer;9(2):105-13. — View Citation
Chung KR, Kim SH, Kook YA, Son JH. Anterior torque control using partial-osseointegrated mini-implants: biocreative therapy type I technique. World J Orthod. 2008 Summer;9(2):95-104. — View Citation
Hong RK, Heo JM, Ha YK. Lever-arm and mini-implant system for anterior torque control during retraction in lingual orthodontic treatment. Angle Orthod. 2005 Jan;75(1):129-41. — View Citation
Kim JS, Kim SH, Kook YA, Chung KR, Nelson G. Analysis of lingual en masse retraction combining a C-lingual retractor and a palatal plate. Angle Orthod. 2011 Jul;81(4):662-9. doi: 10.2319/100110-574.1. Epub 2011 Mar 14. — View Citation
Kim SH, Hwang YS, Ferreira A, Chung KR. Analysis of temporary skeletal anchorage devices used for en-masse retraction: a preliminary study. Am J Orthod Dentofacial Orthop. 2009 Aug;136(2):268-76. doi: 10.1016/j.ajodo.2007.08.023. — View Citation
Miyawaki S, Yasuhara M, Koh Y. Discomfort caused by bonded lingual orthodontic appliances in adult patients as examined by retrospective questionnaire. Am J Orthod Dentofacial Orthop. 1999 Jan;115(1):83-8. — View Citation
Park YC, Choi YJ, Choi NC, Lee JS. Esthetic segmental retraction of maxillary anterior teeth with a palatal appliance and orthodontic mini-implants. Am J Orthod Dentofacial Orthop. 2007 Apr;131(4):537-44. — View Citation
Su J, Liu J, Zhang D, Luo G, Chen L, Yu X, Lin Z, Zhang J. [Finite-element investigation on center of resistance of maxillary anterior teeth]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2014 Oct;31(5):994-1000. Chinese. — View Citation
Upadhyay M, Yadav S, Nagaraj K, Patil S. Treatment effects of mini-implants for en-masse retraction of anterior teeth in bialveolar dental protrusion patients: a randomized controlled trial. Am J Orthod Dentofacial Orthop. 2008 Jul;134(1):18-29.e1. doi: 10.1016/j.ajodo.2007.03.025. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Type of anterior tooth movement. | This would be detected by measurement of the mean change in bucco-lingual inclination of every anterior tooth from the baseline. This outcome will be measured after achieving a normal overjet. | Expected average of 10 months | |
Secondary | Change in the nasolabial angle. | Measurement of the mean change in nasolabial angle | Expected average of 10 months | |
Secondary | Molar anchorage loss | Measurement of the mean change in the antero-posterior position of the first molar crown | Expected average of 10 months | |
Secondary | Patient satisfaction from treatment with either the labial or lingual biocreative therapy | Detected by using a questionnaire filled by the patients at the end of the retraction period | Expected average of 10 months | |
Secondary | Changes in the transverse dimension of the upper arch. | Detected through measurement of the mean change of the inter-canine and inter-molar width from the baseline | Expected average of 10 months | |
Secondary | Vertical movement of the crown of the six maxillary anterior teeth | Detected by measurement of the mean change in the vertical linear distance from the incisal edge/cusp tip of every tooth to the palatal plane | Expected average of 10 months | |
Secondary | point A to Nasion perp plane | Measurement of the mean change in the position of point A from the Nasion perpendicular plane | Expected average of 10 months | |
Secondary | Time duration required to complete the retraction phase. | Recorded in months and days, from the start till the end of retraction period | Expected average of 10 months | |
Secondary | change in inter-labial gap | Measurement of the mean change in inter-labial gap | Expected average of 10 months | |
Secondary | upper lip position | Change in the position of the upper lip in the antero-posterior dimension | Expected average of 10 months | |
Secondary | Lower lip position | Change in the position of the lower lip in the antero-posterior dimension | Expected average of 10 months |
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