Orthodontic Tooth Movement Clinical Trial
Official title:
Piezocision, Corticotomy and Micro-ostoeperforations to Accelerate Orthodontic Tooth Movement
Verified date | December 2022 |
Source | Pontifícia Universidade Católica de Minas Gerais |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This study will compare the techniques of piezocision and alveolar corticotomies in accelerating orthodontic retraction movement of canines. In a second phase, this clinical trial will evaluate the effectiveness of micro-osteoperforations in accelerating the retraction of maxillary incisors.
Status | Completed |
Enrollment | 45 |
Est. completion date | September 16, 2021 |
Est. primary completion date | September 16, 2021 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 15 Years to 45 Years |
Eligibility | Inclusion Criteria: - Patient with orthodontic need for bilateral upper first premolar extraction. - Adequate dento-oral health - ASA I and ASA II - Compliance with clinic visits every 2 weeks Exclusion Criteria: - History of periodontal disease - Smokers - Altered bone metabolism (e.g., due to anti-resorptive drug, steroid or immunosuppressant use) - Pregnancy - Presence of cleft or any syndrome |
Country | Name | City | State |
---|---|---|---|
Brazil | Pontifícia Universidade Católica de Minas Gerais | Belo Horizonte | MG |
Lead Sponsor | Collaborator |
---|---|
Pontifícia Universidade Católica de Minas Gerais | Fundação de Amparo à Pesquisa do estado de Minas Gerais |
Brazil,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Orthodontic Canine Retraction Rate | The main objective is to evaluate and compare the canine retraction velocity in the different groups. Digital intra-oral scans will be performed (3Shape A / S®, Kopenhagen, Denmark) as registration method, every 14 days, up to 6 months. | Up to 6 months | |
Primary | Anteroposterior displacement of the upper incisors | The anteroposterior displacement of the upper incisors was assessed on superimposed digital models through the distance of points on the incisal edge and palatal cervical margin of these teeth to a coronal reference plan created on the initial CBCT scan. | Up to 4 months | |
Primary | Space closure | The space closure was assessed by the distance between the most menial point of the medial surface of the canine to the most distal point of the distal surface of the lateral incisor. | Up to 4 months | |
Secondary | Duration of the effect of the surgical procedures | The retraction of the canine will be accompanied by up to 6 months after surgery to verify the duration of its effect, if it occurs. | Up to 6 months | |
Secondary | Evaluation of biomarkers | To evaluate the expression of the inflammatory biomarkers present in the gingival crevicular sulcus of the canines to be retracted. At T0, immediately before retraction, and 15 in 15 days. | Up to 6 months | |
Secondary | Patient Pain and discomfort | VAS questionnaire will be used after the surgical procedures, as well after TADs placement, separator placement and premolar extraction. Always 7 days after each procedure. | Up to 6 months | |
Secondary | First molars anchorage loss | The first molars anchorage loss was assessed on superimposed digital models through the distance of a point on the mesiobuccal cuspid to a coronal reference plan created on the initial CBCT scan. | Up to 4 months | |
Secondary | Changes of the inclination of the central incisors | The initial and final CBCT were superimposed by the "voxel-based method" in the Dolphin Imaging software (Chatsworth, CA, USA), using the cranial base as reference. The inclination of the central incisors was then assessed by means of the angle formed by the long axis of each central incisor in the initial and final CBCT. | Up to 4 months | |
Secondary | Changes of the length of the central incisors | The initial and final length of the central incisors were measured by creating a 2D line, passing through the lowest point of the incisal edge and the highest point of the root apex. To perform these measurements, a sagittal cut was used in which the longest length of these teeth was seen. | Up to 4 months |
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