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

NCT05512442 | Completed DMC

• 1 other identifier: 20200901
• Study Type: interventional
• Target: 10
• Locations: 1 country
• Sites: 1

Brief Summary

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)

Conditions

Tooth Loss

Keywords

Cone-Beam computed tomography; the centric relation; the upper airway; mandibular position

Outcome Measures

Primary Outcomes (1)

• the temporomandibular joint space

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

  immediately

Secondary Outcomes (1)

• the upper airway

  immediately

Other Outcomes (1)

• the mandibular position

  immediately

Study Arms (2)

record the centric relation using the gothic tracing method

EXPERIMENTAL

the vertical dimension of occlusion (VDO) were were determineded through facial appearance observation,thus,the patients were trained to execute bordering protrusive, retrusive and bilateral lateral-protrusive movements wearing the intraoral apparatus and a Gothic Arch Tracing was made, the apex of the Gothic Arch Tracing was defined as the gothic arch position.

Procedure: the centric relation

record the centric relation using the neuromuscular method

EXPERIMENTAL

the participant were subjected to a low-frequency transcutaneous electrical nerve stimulation (TENS) using the J5 Myotronics for 45 minutes,With the help of TENS, complete relaxation of the muscles were achieved and the mandibular musculature was induced to guide the mandible in the physiologic position,thus using K7 to track the physical mandibular positon which was defined as the neuromuscular position.

Procedure: the centric relation

Interventions

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.

record the centric relation using the gothic tracing method; record the centric relation using the neuromuscular method

Eligibility Criteria

• Age: 20 Years - 60 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• 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.

You may not qualify if:

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

Sponsors & Collaborators

• Fujian Medical University: lead

Study Sites (1)

Fujian Medical University

Fuzhou, Fujian, 350004, China

Location

MeSH Terms

Conditions

Tooth Loss

Condition Hierarchy (Ancestors)

Periodontal Diseases; Mouth Diseases; Stomatognathic Diseases; Tooth Diseases

Study Officials

• Hao Yu

  Fujian Medical University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Fujian Medical University

Study Record Dates

• First Submitted: August 22, 2022
• First Posted: August 23, 2022
• Study Start: January 1, 2020
• Primary Completion: March 1, 2021
• Study Completion: April 1, 2021
• Last Updated: August 23, 2022

Record last verified: 2022-08

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)