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A Comparative Study of the Carriere ...

Sorensen, Justin Vance.

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A Comparative Study of the Carriere Motion Appliance and Class II Elastics: CBCT Analysis of Treatment Effects.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A Comparative Study of the Carriere Motion Appliance and Class II Elastics: CBCT Analysis of Treatment Effects./
Author:	Sorensen, Justin Vance.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	65 p.
Notes:	Source: Masters Abstracts International, Volume: 81-09.
Contained By:	Masters Abstracts International81-09.
Subject:	Dentistry. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27669106
ISBN:	9781392602317

A Comparative Study of the Carriere Motion Appliance and Class II Elastics: CBCT Analysis of Treatment Effects.
Sorensen, Justin Vance.

A Comparative Study of the Carriere Motion Appliance and Class II Elastics: CBCT Analysis of Treatment Effects. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 65 p.

Source: Masters Abstracts International, Volume: 81-09.

Thesis (M.S.)--Saint Louis University, 2019.

This item must not be sold to any third party vendors.

Objective: This retrospective study was designed to determine the treatment effects of the Carriere Motion Appliance (CMA) in comparison with intermaxillary Class II elastics, by utilizing Cone Beam Computed Tomography (CBCT). Methods: The records of 68 adolescent patients (22 males and 46 females) were retrospectively collected from four private orthodontic practices. Based on the modality of Class II correction, the sample was divided into two groups: Group 1 (N=34, 11 males and 23 females, 12.98 ± 1.35 years) was treated with the CMA for early AP correction, followed by either traditional fixed appliances or clear aligners (17 fixed / 17 aligners); Group 2 was age and sex matched, treated with intermaxillary Class II elastics alone for AP correction (N=34, 11 males and 23 females, 12.84 ± 1.29 years). Pre-treatment (T1) and post treatment (T2) CBCT volumes were analyzed and traced with Anatomage Invivo 6.0 advanced 3D imaging software. The T1-T2 changes in 30 measurements were calculated for each group and the T1-T2 changes in 20 measurements were compared between groups. Results: Prior to treatment, Group 1 displayed significantly less IMPA and lower positioned maxillary canines. There were statistically significant differences in the T1-T2 changes between Group 1 and 2 in the following variables: ANB angle (1.09 ± 0.93° and 0.57 ± 1.17°); IMPA (-3.17 ± 6.70° and -8.42 ± 6.75°); maxillary canine AP position (0.71 ± 1.52 mm and -0.35 ± 1.77 mm); maxillary canine vertical position (-2.67 ± 1.84 mm and -4.29 ± 3.32 mm); rotation of maxillary first molars (5.43 ± 5.86° and 1.64 ± 7.49°), respectively. Treatment duration was significantly shorter for Group 1 than Group 2 (16.02 ± 4.35 months and 23.68 ± 6.56 months, respectively). Conclusions: The use of CMA for Class II correction resulted in greater reduction in ANB, more distal movement of maxillary canines, more distal rotation of maxillary first molars, less proclination of lower incisors and shorter treatment duration than traditional appliances and Class II elastics.

ISBN: 9781392602317Subjects--Topical Terms:

828971
Dentistry.
Subjects--Index Terms:

Carriere

A Comparative Study of the Carriere Motion Appliance and Class II Elastics: CBCT Analysis of Treatment Effects.
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300 $a 65 p.
500 $a Source: Masters Abstracts International, Volume: 81-09.
500 $a Advisor: Ueno, Hiroshi.
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506 $a This item must not be sold to any third party vendors.
520 $a Objective: This retrospective study was designed to determine the treatment effects of the Carriere Motion Appliance (CMA) in comparison with intermaxillary Class II elastics, by utilizing Cone Beam Computed Tomography (CBCT). Methods: The records of 68 adolescent patients (22 males and 46 females) were retrospectively collected from four private orthodontic practices. Based on the modality of Class II correction, the sample was divided into two groups: Group 1 (N=34, 11 males and 23 females, 12.98 ± 1.35 years) was treated with the CMA for early AP correction, followed by either traditional fixed appliances or clear aligners (17 fixed / 17 aligners); Group 2 was age and sex matched, treated with intermaxillary Class II elastics alone for AP correction (N=34, 11 males and 23 females, 12.84 ± 1.29 years). Pre-treatment (T1) and post treatment (T2) CBCT volumes were analyzed and traced with Anatomage Invivo 6.0 advanced 3D imaging software. The T1-T2 changes in 30 measurements were calculated for each group and the T1-T2 changes in 20 measurements were compared between groups. Results: Prior to treatment, Group 1 displayed significantly less IMPA and lower positioned maxillary canines. There were statistically significant differences in the T1-T2 changes between Group 1 and 2 in the following variables: ANB angle (1.09 ± 0.93° and 0.57 ± 1.17°); IMPA (-3.17 ± 6.70° and -8.42 ± 6.75°); maxillary canine AP position (0.71 ± 1.52 mm and -0.35 ± 1.77 mm); maxillary canine vertical position (-2.67 ± 1.84 mm and -4.29 ± 3.32 mm); rotation of maxillary first molars (5.43 ± 5.86° and 1.64 ± 7.49°), respectively. Treatment duration was significantly shorter for Group 1 than Group 2 (16.02 ± 4.35 months and 23.68 ± 6.56 months, respectively). Conclusions: The use of CMA for Class II correction resulted in greater reduction in ANB, more distal movement of maxillary canines, more distal rotation of maxillary first molars, less proclination of lower incisors and shorter treatment duration than traditional appliances and Class II elastics.
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