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Completed

NCT Number: NCT05512442

Comparison of the Centric Relation Recorded by Two Methods Using Cone Beam Computed Tomography

The purpose of this study was to investigate and compare the variation in mandibular relation recorded by the gothic arch methods and the K7 method using cone beam computed tomography (CBCT)

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Key information

Conditions

Tooth Loss Mouth Diseases Periodontal Diseases Stomatognathic Diseases Tooth Diseases

Age range

20 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Fujian Medical University

Fuzhou, Fujian, 350004, China

About this study

ten asymptomatic participants were selected,the centric relation registrations were separately recorded according to the technique of the gothic arch method and the neuromuscular method,subsequent, they were instructed to perform CBCT wearing two bite registrations,thus using dophin software to calculate the tmj space and the upper airway and using exocad software to ananyse the mandibular position, Data were analysed with paired t-test

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

absence of the mandibular position Classified as ASA 1 or 2 (normal healthy patient or with mild systemic disease, according to the American Society of Anaesthesiologists Physical Status Classification System); Absence of the symptoms and signs of the temporomandibular joint; Willing to participate and to sign a written informed consent form.

Exclusion criteria

Cardiac pacemaker carriers and pregnant women; people with heart pace disorders and epilepsy; Temporomandibular or craniocervical disorders.

Treatment and study plan

the centric relation

Procedure

All participants were recorded the centric relation registrations according to the technique of the gothic tracing method and the neuromuscular method separately.

Primary outcomes

  1. the temporomandibular joint space

    Time frame: immediately

    according to the method of Ikeda and Kawamura, tmj space measurement in sagittal of the CBCT images were performed

Secondary outcomes

  1. the upper airway

    Time frame: immediately

    Using the sinus/airway feature of the Dolphin software to reconstruct the upper airway,it included three region: the nasopharynx, oropharynx, and hypopharynx

Other outcomes

  1. the mandibular position

    Time frame: immediately

    convert the DICOM files into the exocad software and analyse the difference of the mandibular position determined by the technique of the gothic tracing method and the neuromuscular method separately.

Sponsors and collaborators

Lead sponsor

Fujian Medical University

Other

Registry information

Official study title

Comparison of the Centric Relation Recorded by the Gothic Arch Methods and the Neuromuscular Method Using Cone Beam Computed Tomography

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Aug 23, 2022
Registry last updated
Aug 23, 2022

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.

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