Набор по приглашению NCT07661277

Failure Rate of Infra-Zygomatic Orthodontic Mini-Screws

Без фазы С лечением Orthodontic Anchorage Procedures

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают: В протоколе указаны: Immediate loading infra-zygomatic mini-screw, Delayed loading infra-zygomatic mini-screw.
Кому может быть актуально: Состояния в реестре: Orthodontic Anchorage Procedures. Базовые параметры: 19 лет — 35 лет · Все.
Что важно проверить: Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится: Bangladesh
Следующий шаг: Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Официальное название

Factors Associated With the Failure Rate of Infra-Zygomatic Orthodontic Mini-Screws

Обзор

The goal of this randomized clinical study is to assess the factors associated with the failure rate of infra-zygomatic crest orthodontic mini-screws used for anchorage reinforcement during orthodontic treatment.

Подробное описание

Researchers will evaluate the influence of mini-screw length, diameter, oral hygiene status, age, sex, and loading time on the failure rate of infra-zygomatic mini-screws. Mini-screw failure will be assessed clinically by the presence of mobility or loss of stability.

Participants will:

* Receive fixed orthodontic treatment with a pre-adjusted edgewise appliance system. * Receive infra-zygomatic mini-screws bilaterally for maxillary anchorage reinforcement. * Receive a 10 mm × 1.8 mm mini-screw on one side with immediate loading. * Receive a 12 mm × 2.0 mm mini-screw on the contralateral side with delayed loading. * Receive standardized orthodontic force using elastic power chain. * Undergo CBCT assessment to evaluate the position of the inserted mini-screws. * Be evaluated at baseline and at one-month intervals for three consecutive months to assess mini-screw mobility or failure.

Вмешательства

Процедура Immediate loading infra-zygomatic mini-screw
A 10 mm length and 1.8 mm diameter infra-zygomatic mini-screw will be placed on one side of the maxillary arch and loaded immediately with orthodontic force.
Процедура Delayed loading infra-zygomatic mini-screw
A 12 mm length and 2.0 mm diameter infra-zygomatic mini-screw will be placed on the contralateral side of the maxillary arch and loaded after a delayed period

Первичные конечные точки

To assess the failure rate of infra-zygomatic orthodontic mini-screws over a three-month follow-up period. Failure will be defined as any degree of clinical mobility or loss of stability of the mini-screw. [Срок оценки: over a three-month follow-up period]

Вторичные конечные точки (1)

To assess the failure rate of infra-zygomatic orthodontic mini-screws over a three-month follow-up period. Failure will be defined as any degree of clinical mobility or loss of stability of the mini-screw [Срок оценки: Over a three-month follow-up period.]

Критерии участия

Критерии включения

Participants aged 19 to 35 years.
Both male and female participants.
Patients requiring absolute anchorage for maxillary arch and orthodontic tooth movement.
Patients undergoing fixed orthodontic treatment.
Patients in whom infra-zygomatic mini-screws are indicated for anchorage reinforcement.
Participants whose oral hygiene status can be clinically assessed.
Participants willing to provide written informed consent.