Efficacy of Skeletal Anchorage (MINISCREW) (Minivis)
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ClinicalTrials.gov Identifier: NCT01025141 |
Recruitment Status :
Completed
First Posted : December 3, 2009
Last Update Posted : December 21, 2017
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Tooth Extraction Status Nos | Device: Skeletal anchorage (MINISCREW) Device: dental anchorage | Not Applicable |
Multicenter prospective study on patients aged between 12 and 50 years, requiring orthodontic treatment with premolar extractions and closure of the extraction spaces by distalization of the 6 anterior teeth. In the experimental group (50 patients) distalization will be performed using skeletal anchorage (MINISCREW). In the control group (50 patients), distalization will be by dental anchorage.
The main evaluation criterion will be extraction space closure after 8 months of treatment. Angle class I cuspid and the parallelism of the dental axes will also be taken into account. Evaluations will be made by very precise radiological analysis using 3D CT-scan. Examinations will be done before and after closure of the extraction sites and will assess treatment efficacy using skeletal anchorage versus dental anchorage. Patients will also be requested to complete a satisfaction questionnaire. The study will comprise an inclusion appointment during which patient consent will be obtained and a regular monthly appointment during the 8 months of active treatment and space closure.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 99 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Study of the Efficacy of Skeletal Anchorage (MINISCREW) Compared to Dental Anchorage During Orthodontic Treatment |
Actual Study Start Date : | February 25, 2009 |
Actual Primary Completion Date : | February 20, 2014 |
Actual Study Completion Date : | February 20, 2014 |
Arm | Intervention/treatment |
---|---|
Experimental: MINISCREW
device
|
Device: Skeletal anchorage (MINISCREW)
Skeletal anchorage
Other Name: Skeletal anchorage |
Active Comparator: Reference
dental anchorage
|
Device: dental anchorage
dental anchorage (reference)
Other Name: dental anchorage (reference) |
- We measure space extraction close after 8 months treatment. Angle class I cuspid and the parallelism of the dental axes will also be taken into account. [ Time Frame: 8 months ]
- MINISCREW stability [ Time Frame: 8 months ]
- Anchorage teeth stability [ Time Frame: 8 months ]
- Success and Failure implantation percentage [ Time Frame: 8 months ]
- MINISCREW surgery difficulty [ Time Frame: during the surgery act ]
- Patient satisfaction [ Time Frame: at 1 month and at 8 months ]

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Ages Eligible for Study: | 12 Years to 50 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion criteria:
- Aged from 12 to 50 years old
- Patient need orthodontic treatment with extraction of 2 maxillary bicuspid
- Patient has signed informed consent
Exclusion criteria:
- Patient younger than 12 and older than 50 years old
- Patient without social security affiliation
- Patient with a medical condition that indicates against orthodontic treatment

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01025141
France | |
Bretonneau Hospital | |
Paris, France, 75018 |
Principal Investigator: | Catherine Miller, Dentist, PhD | Assistance Publique - Hôpitaux de Paris | |
Study Chair: | Claire Haignere, Dentist | Assistance Publique - Hôpitaux de Paris | |
Study Chair: | Anne-Charlotte Six, Dentist | Assistance Publique - Hôpitaux de Paris | |
Study Chair: | Alain Decker, Dentist, PhD | Assistance Publique - Hôpitaux de Paris |
Responsible Party: | Assistance Publique - Hôpitaux de Paris |
ClinicalTrials.gov Identifier: | NCT01025141 |
Other Study ID Numbers: |
P070610 |
First Posted: | December 3, 2009 Key Record Dates |
Last Update Posted: | December 21, 2017 |
Last Verified: | December 2017 |
MINISCREW space extraction closure anchorage Orthodontic Treatment |
Extraction of 2 Maxillary Premolar closing of extraction space patient aged from 12 to 50 years old |