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| Name | Class |
|---|---|
| 3Shape Poland Sp.z.o.o. | UNKNOWN |
| Koszalin University of Technology | UNKNOWN |
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The goal of observational study is to learn about the stability of orthodontic treatment results in orthodontic patients during retention phase of treatment.
The aim of the present study was to three-dimensionally analyze tooth movement in retention phase of treatment and wherever double effectively retention prevents it.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Study group | From all the patients meeting the inclusion criteria every third patients was randomly chosen and invited to participate in the study. Written informed consent was obtained from every participant. Thus 100 patients have agreed to participate. All fixed retainers (stainless steel braided rectangular wire) were bonded in both arches by the same experienced clinician, who subsequently made impression for thermally formed splints and delivered them on the day of debonding. The effect of each of the procedures was verified by two independent experienced clinicians. On the day of debonding, directly following retainer bonding, intraoral scans were performed (T0). The patients were invited for repeating the scans after 1 (T1), 3 (T2) and 6 months (T3). The displacements were assessed by superimposition of the scans. The patients were recommended to wear removable retainers 22h/day. They were instructed to immediately report a failure and to apply immediately to the office in case of failure. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Intraoral scan | Diagnostic Test | On the day of debonding, directly following retainer bonding, intraoral scans were performed (T0), using 3Shape Trios 4 (3Shape, Copenhagen, Denmark). The scans were repeated after a month. The patients were invited for repeating the scans after 1 (T1), 3 (T2) and 6 months (T3). |
| Measure | Description | Time Frame |
|---|---|---|
| Tooth displacement in mm | Measurement obtained by comparing superimposed scans | One month after debonding |
| Tooth displacement in mm | Measurement obtained by comparing superimposed scans | Three months after debonding |
| Tooth displacement in mm | Measurement obtained by comparing superimposed scans | Six months after debonding |
| Measure | Description | Time Frame |
|---|---|---|
| Failure rate | Registration wherever the retention failure occured | Six months of observation |
| Compliance rate | Registration of patients attending to scheduled visits |
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Inclusion Criteria:
Exclusion Criteria:
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The study group comprised 300 patients adult patients (age 18 to 41) who have completed fixed orthodontic treatment between (1st January 2021 - 9th September 2022).
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Interdisciplinary Dentistry, Pomeranian Medical Univeristy in Szczecin | Szczecin | West Pomeranian Voivodeship | 70-111 | Poland |
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| ID | Term |
|---|---|
| D008310 | Malocclusion |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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| Six months of observation |