Skip to main content
OpenTrials
Completed

NCT Number: NCT06715774

Impact of Twin Block and Motion Class II Appliances on Hyoid Bone Position - A Retrospective Clinical Study

Analyse the impact Twin block appliance and Motion on Hyoid Bone

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Hyoid Bone

Age range

10 year–16 year

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Salamanca

Salamanca, 37008, Spain

About this study

Patients were selected, divided en two homogenous groups and underwent preoperative and postoperative lateral teleradiograph scans. The datasets were subsequently uploaded into a digital treatment planning software to record the position changes of the hyoid bone at horizontal, vertical, angular, and airway complex level; additionally, the effect of gender, age at onset, treatment time, biotype, and their interactions with the group, have been also statistically evaluated.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 10 and 16 years old, with sketelal class II, a ANB angle ≥4° according to the Steiner cephalometric analysis, with Twin block or Motion appliance

Exclusion criteria

  • without previous orthodontic treatment, without systemic disesases and adenotonsillar hypertrophy.

Treatment and study plan

Impact of Twin Block and Motion above Hyoid bone

Device

All patients were submitted to preoperative and postoperative lateral teleradiography (Vatech D052SB, Puteaux, France), with the following exposure parameters: 75KV, Intensity10mA, exposition times 11s28, 112,8 mAs, using the Frankfort plane as reference parallel to the floor; moreover, patients were required to avoid moving and swallowing. Afterwards, digital datasets were uploaded and aligned into a digital therapeutic planning software (Orthalis®, Orqualceph®,group orqual) to accurately record the position changes of the hyoid bone at horizontal, vertical, and angular level, according the gender, facial biotype and airway complex, by measuring the following anatomical references:

Primary outcomes

  1. Impact of Twin Block and Motion Class II Appliances on Hyoid Bone Position - A Retrospective Clinical Study

    Time frame: 2023-2024

    See the impact of twin block and motion on the hyoid bone

Sponsors and collaborators

Lead sponsor

University of Salamanca

Other

Registry information

Acronym: Hyoid bone

Important dates

Study start
2023
Primary completion
2023
Study completion
2024
First posted
Dec 4, 2024
Registry last updated
Dec 4, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.