Class III Malocclusion and ALT-RAMEC

NCT ID: NCT05913076

Last Updated: 2023-06-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-01-13

Study Completion Date

2012-08-15

Brief Summary

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Diverse viewpoints exist regarding the correlation between the conventional rapid maxillary expansion (RME) and facemask approach and the alternative RME and facemask hybrid technique (Alt-RAMEC) in terms of the degree of maxillary protraction. The findings of the study may offer a novel approach to protocol selection based on the anomaly's degree of severity. The objective of this investigation is to assess and contrast the skeletal and dentoalveolar outcomes of three distinct Alt-RAMEC techniques.

Detailed Description

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Alternating rapid maxillary expansion and constriction (Alt-RAMEC) procedure is one of the most frequently used methods in the treatment of Class III cases caused by maxillary retrognathia. The objective of this investigation is to conduct a comparative analysis of the skeletal and dentofacial outcomes of three distinct techniques for maxillary protraction Following the primary recording, the patients were evaluated using bonded-type rapid maxillary expansion (RME) devices and three discrete Alt-RAMEC techniques (1, 3, and 5 weeks). Lateral cephalograms were obtained from a sample of 40 patients (18 males and 22 females) with a mean age of 10.64 ± 0.98. These images were taken both before (T1) and after the 6th month of facemask treatment (T2), and were subjected to total and local superimpositions. The Wilcoxon Sign, Kruskal-Wallis and Mann-Whitney U tests were used to evaluate the data.

Conditions

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Face Mask Rapid Maxillary Expansion Maxillary Retrognathism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Investigation of the Effects of Alt-RAMEC and Facemask 1 week Use in Class III Malocclusion

A sample of 40 patients, consisting of 18 males and 22 females with a mean age of 10.64 ± 0.98, who were in the growth and developmental stage, were divided into three treatment groups. The formation of groups was carried out with the aim of achieving a near-equal distribution of male and female participants within each group, as indicated in Table 1. The first group comprised 14 patients, while the second and third groups consisted of 13 patients each. The skeletal age of the individual was determined through the acquisition of hand-wrist X-rays and the application of the Greulich and Pyle atlas at T1.

Group Type EXPERIMENTAL

Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for first group

Intervention Type DEVICE

The study involved the fabrication of occlusal-coverage bonded type RME devices utilizing Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy). Each patient in Group 1 (classical RME method) was instructed to open Hyrax screw twice a day for a week. At the end of the respective periods (1 week), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Investigation of the Effects of Alt-RAMEC and Facemask 3 week Use in Class III Malocclusion

The second group comprised 13 patients who were in the growth and developmental stage. The skeletal age of the individual was determined through the acquisition of hand-wrist X-rays and the application of the Greulich and Pyle atlas at T1.

Group Type EXPERIMENTAL

Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for second group

Intervention Type DEVICE

The same fabrication of occlusal-coverage bonded type RME devices were utilized Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy) in Group 2. Each patient in Group 2 (3-week Alt-RAMEC protocol), the patients were instructed to activate Hyrax screw twice a day for one week, close the screw for following week, and open the screw over the third week. At the end of the respective periods (3 weeks), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Investigation of the Effects of Alt-RAMEC and Facemask 5 week Use in Class III Malocclusion

The third group comprised 13 patients who were in the growth and developmental stage. The skeletal age of the individual was determined through the acquisition of hand-wrist X-rays and the application of the Greulich and Pyle atlas at T1.

Group Type EXPERIMENTAL

Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for third group

Intervention Type DEVICE

The same fabrication of occlusal-coverage bonded type RME devices were utilized Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy) in Group 3. Each patient in Group 3 (5-week Alt-RAMEC protocol), the patients were instructed to activate Hyrax screw twice a day for one week, close the screw for following week, and open the screw over the third week. The aforementioned screw open-close procedure was implemented over a period of five weeks. At the end of the respective periods (5 weeks), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Interventions

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Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for first group

The study involved the fabrication of occlusal-coverage bonded type RME devices utilizing Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy). Each patient in Group 1 (classical RME method) was instructed to open Hyrax screw twice a day for a week. At the end of the respective periods (1 week), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Intervention Type DEVICE

Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for second group

The same fabrication of occlusal-coverage bonded type RME devices were utilized Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy) in Group 2. Each patient in Group 2 (3-week Alt-RAMEC protocol), the patients were instructed to activate Hyrax screw twice a day for one week, close the screw for following week, and open the screw over the third week. At the end of the respective periods (3 weeks), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Intervention Type DEVICE

Delaire Face Mask (M0774-01, Leone S.p.A., Florence, Italy) for third group

The same fabrication of occlusal-coverage bonded type RME devices were utilized Hyrax screws (A0620-11, Leone S.p.A., Firenze, Italy) in Group 3. Each patient in Group 3 (5-week Alt-RAMEC protocol), the patients were instructed to activate Hyrax screw twice a day for one week, close the screw for following week, and open the screw over the third week. The aforementioned screw open-close procedure was implemented over a period of five weeks. At the end of the respective periods (5 weeks), the screws were fixed with ligatures, and the patients were evaluated.

Face-mask treatment was subsequently started after RME. Totaling 700 g of extraoral traction force applied to maxilla. Patients were advised to wear Delaire type facemasks (M0774-00, Leone SpA) 14-16 hours a day for 6 months.

Intervention Type DEVICE

Other Intervention Names

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(Fabricated for every patient) Bonded-type Expansion Device (Fabricated for every patient) Bonded-type Expansion Device (Fabricated for every patient) Bonded-type Expansion Device

Eligibility Criteria

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Inclusion Criteria

* Maxillary retrognathia (SNA ≤ 79°)
* Skeletal Class III malocclusion (ANB ≤ -1°)
* Anterior cross-bite
* Class III molar relationship
* Horizontal growth pattern (SN/Go-Gn \< 30°)

Exclusion Criteria

* Previous orthodontic treatment
* Systemic disorders
Minimum Eligible Age

9 Years

Maximum Eligible Age

11 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Istanbul University

OTHER

Sponsor Role collaborator

Trakya University

OTHER

Sponsor Role lead

Responsible Party

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Hande Uzunçıbuk

Research Assistant Dr./ Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Nilüfer Yılmaz Öğütlü, Dr.

Role: STUDY_DIRECTOR

Istanbul University

Gülsün Külekçi Çakan

Role: PRINCIPAL_INVESTIGATOR

Private Practitioner

Hülya Kılıçoğlu, Prof. Dr.

Role: STUDY_CHAIR

Istanbul University

Hande Uzunçıbuk, Dr.

Role: PRINCIPAL_INVESTIGATOR

Trakya University

Locations

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Trakya University

Edirne, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Other Identifiers

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facemasktrakya1234

Identifier Type: -

Identifier Source: org_study_id

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