Corticotomy-Assisted Class III Elastic Applications

TC Erciyes University20 enrolled

Overview

This prospective randomized clinical study aimed to evaluate the effectiveness of corticotomy-assisted maxillary protraction with three different miniplate and intermaxillary elastic applications after corticotomy in patients with skeletal Class III malocclusion.

In acrylic splint group (AS) and palatal miniscrew group (MS), an acrylic splint containing hooks in the upper molar region was prepared and cemented. In the MS group, two miniscrews were used in the palatal region for additional anchorage. An incomplete Le Fort 1 osteotomy was performed in all patients to free the maxilla. Miniplates were placed vertically between the mandibular canine and first premolar in all groups, and horizontally under the osteotomy line in the maxillary molar region in miniplate group (MP). Class III elastics were applied 5 days after the surgery.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Class III Malocclusion

Interventions

Skeletal anchorage and intermaxillary elastic assisted maxillary protractionDEVICE

maxillary protraction with corticotomy-assisted different miniplate and intermaxillary elastic applications after growth spurt in patients with skeletal Class III malocclusion

Eligibility

Sex: ALLMin age: 13 YearsMax age: 15 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Skeletal Class III malocclusion * ANB angle between 0 and -4° * normal or horizontal growth pattern * anterior crossbite or edge-to-edge incisor relationship * permanent dentition Exclusion Criteria: * requirement for maxillary expansion * pseudo-Class III malocclusion * inadequate oral hygiene * missing tooth in the upper dentition

Locations (1)

Erciyes University Faculty of Dentistry, Department of Orthodontics

Kayseri, Kayseri, Turkey (Türkiye)

Outcomes

Primary Outcomes

Maxillomandibular sagittal changes

Investigation of Angular changes in SNA (°), SNB (°), ANB (°) measurements. Investigation of Distance changes in Wits (mm), A-Na Perp (mm), Co-A (mm), A-VRL (mm), and B-VRL (mm) measurements.

Time frame: Through study completion, an avarage of 6 months

Vertical changes

Investigation of Angular changes in Y-axis angle (°), SN-GoGN (°), SN-PP (°), Jarabak ratio measurements. Investigation of Distance changes in A-HRL (mm) measurement.

Time frame: Through study completion, an avarage of 6 months

Dentoalveolar changes

Investigation of Angular changes in U1-SN (°), U1-PP (°), IMPA (°) measurements. Investigation of Distance changes in Overjet (mm), Overbite (mm), U1-VRL (mm), and U6-VRL (mm) measurements.

Time frame: Through study completion, an avarage of 6 months

Soft tissue changes

Investigation of Angular changes in soft tissue convexity (°), NA-Pog (°) measurements. Investigation of Distance changes in VRL-prn (mm), VRL-Is (mm), VRL-li (mm), VRL-pog (mm), and ANS-Me (mm) measurements.

Time frame: Through study completion, an avarage of 6 months

Data from ClinicalTrials.gov

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