Evaluation of First Molar Inclinations and Transverse Arch Width in Individuals With Posterior Crossbite

NCT04955860 | Completed

• 1 other identifier: 2020/44
• Study Type: observational
• Target: 120
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to evaluate and compare the inclination of the lower and upper permanent first molars and the transversal width of the lower and upper jaws in individuals of different age groups to evaluate whether the existing anomaly at different ages in individuals with a bilateral posterior crossbite. For this reason, first molar tooth inclination and lower and upper jaw transversal width will be evaluated in adolescent and post-adolescent individuals with a bilateral posterior crossbite.

Conditions

Crossbite (Anterior) (Posterior); Dental Malocclusion; Maxillary Anomaly

Keywords

posterior crossbite; dental model analysis; molar inclination; dental arch parameter

Outcome Measures

Primary Outcomes (4)

• Mandibular and maxillary first molar positions

  The inclinations of the lower and upper permanent first molars in the frontal plane will be evaluated.

  At the beginning of the examination, it will be evaluated as an average of 10 minutes for each patient's lower and upper jaw.

• Dimensions of the upper dental arch in the transverse direction

  The distances of the right and left permanent canines, first and second premolars, and permanent first molars transversely to each other in the upper jaw of each patient will be evaluated. In addition, dental arch perimeter and dental arch depth will be evaluated.

  At the beginning of the examination, it will be evaluated as an average of 15 minutes for each patient's maxilla.

• Dimensions of the lower dental arch in the transverse direction

  The distances of the right and left permanent canines, first and second premolars, and permanent first molars transversely to each other in the upper jaw of each patient will be evaluated. In addition, dental arch perimeter and dental arch depth will be evaluated.

  At the beginning of the examination, it will be evaluated as an average of 15 minutes for each patient's mandible.

• Evaluation of the transverse dimensions of the lower and upper jaws between different age groups

  The differences between the periods of different age groups (12-14 years, 14-16 years and 16-18 years) will also be evaluated separately for each group and parameter.

  At the beginning of the examination, it will be evaluated as an average of 25 minutes for each patient's mandible.

Secondary Outcomes (1)

• Evaluation of the transverse dimensions of the lower and upper jaws between the sexes

  At the beginning of the examination, it will be evaluated as an average of 25 minutes for each patient's mandible.

Study Arms (2)

Study Group

Individuals with bilateral posterior crossbite will be included.

Other: Dental model analysis

Control Group

Individuals with no anterior and/or posterior crossbite and transversal malocclusion will be included.

Other: Dental model analysis

Interventions

Dental model analysis OTHER

No interventional treatment intervention will be made for individuals. Digital dental models taken for orthodontic recording will be examined.

Control Group; Study Group

Eligibility Criteria

• Age: 12 Years - 18 Years
• Gender Eligibility Details: Differences between male and female individuals will also be evaluated separately for each group and parameter.
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Individuals with and without posterior crossbite who applied for orthodontic treatment

You may qualify if:

• For the Working Group;
• Absence of a syndrome or disease affecting the craniofacial and general systemic condition
• Patients who have applied for treatment due to the need for orthodontic treatment
• Adequate radiographic and three-dimensional dental model records before treatment
• Bilateral posterior crossbite
• Absence of anterior crossbite
• Absence of loss of lower and upper first permanent molars and eruption of all 4 permanent molars
• For the Control Group;
• Absence of a syndrome or disease affecting the craniofacial and general systemic condition
• Patients who have applied for treatment due to the need for orthodontic treatment
• Adequate radiographic and three-dimensional dental model records before treatment
• Absence of posterior and anterior crossbite
• Absence of loss of lower and upper first permanent molars and eruption of all 4 permanent molars

You may not qualify if:

• Presence of a syndrome and disease affecting the craniofacial and general systemic condition
• Absence of radiographic and dental model records
• Losing any of the lower or upper permanent first molars
• Presence of anterior crossbite

Sponsors & Collaborators

• TC Erciyes University: lead

Study Sites (1)

Erciyes University

Kayseri, 38039, Turkey (Türkiye)

Location

Related Publications (3)

• McNamara JA Jr, Baccetti T, Franchi L, Herberger TA. Rapid maxillary expansion followed by fixed appliances: a long-term evaluation of changes in arch dimensions. Angle Orthod. 2003 Aug;73(4):344-53. doi: 10.1043/0003-3219(2003)0732.0.CO;2.

  PMID: 12940553 BACKGROUND

• da Silva Filho OG, Ferrari Junior FM, Okada Ozawa T. Dental arch dimensions in Class II division 1 malocclusions with mandibular deficiency. Angle Orthod. 2008 May;78(3):466-74. doi: 10.2319/022307-89.1.

  PMID: 18416613 BACKGROUND

• McNamara JA Jr. Early intervention in the transverse dimension: is it worth the effort? Am J Orthod Dentofacial Orthop. 2002 Jun;121(6):572-4. doi: 10.1067/mod.2002.124167. No abstract available.

  PMID: 12080303 BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Data of cast plaster model scans of the lower and upper jaws obtained from individuals for routine treatment procedures were obtained and stored digitally.

MeSH Terms

Conditions

Malocclusion

Condition Hierarchy (Ancestors)

Tooth Diseases; Stomatognathic Diseases

Study Officials

• Ahmet Yagci, DDS, PhD

  Erciyes University, Faculty of Dentistry, Department of Orthodontics

  STUDY DIRECTOR

• Sabri I Ramoglu, DDS, PhD

  Altinbas University, Faculty of Dentistry, Department of Orthodontics

  STUDY CHAIR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer

Study Record Dates

• First Submitted: July 5, 2021
• First Posted: July 9, 2021
• Study Start: March 20, 2020
• Primary Completion: March 20, 2021
• Study Completion: July 1, 2021
• Last Updated: July 16, 2021

Record last verified: 2021-07

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)