Assessment of Root Parallelism Following Orthodontic Treatment in Adolescent vs Adult Patients Treated With Maxillary First Premolar Extraction

Assessment of Root Parallelism Following Orthodontic Treatment in Adolescent vs Adult Patients Treated With Maxillary First Premolar Extraction: Observational -Analytical Study

Panoramic radiographs of finished orthodontic cases will be collected after fulfilling the inclusion and exclusion criteria. Then the collected data will be divided into two groups according to age either adolescent (12-18 years old) or adult group (after 18 years old).

in the panoramic views the long axes of canines and second premolar will be traced digitally using Digital softwares (microDicom vierwer Simeo Antonov Stoykov 0.7.7) & (IC Measure 2.0.0.161).

The objective of this study is to assess the root parallelism between maxillary canines and second premolars in adolescents versus adults group of patients requiring maxillary first premolar extraction during the orthodontic treatment.

Study Overview

• Status: Unknown
• Conditions: Frequency of Root Paralellism
• Intervention / Treatment: Procedure: first premolar extraction and complete canine retraction.

• Study Type: Observational
• Enrollment (Anticipated): 180

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 12 years and older (ADULT, OLDER_ADULT, CHILD)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

the collected data will be divided into two groups according to age either adolescent (12-18 years old) or adult group (after 18 years old).

Description

Inclusion Criteria:

• Adults group of Patients (above 18 years old). .
• Adolescent group of patients (from 12 to 18 years old).
• Extraction of permanent maxillary first premolar in at least one quadrant.
• Same head position at scanning time.
• Same machine: Orthopantomograph Planmeca Promax 2P (Planmeca USA) with a kilovoltage of 55 to 85 and an exposure time of 15 seconds at a focal distance of 46 cm.
• Same type of bracket (Roth prescription, slot size #22).
• Full set of teeth (not necessarily including third molars)

Exclusion Criteria:

• Systematic diseases.
• non extraction cases.
• severe divergence or convergence between roots of maxillary canine and second premolar.

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
adolescent group; Panoramic radiographs of finished orthodontic cases will be collected after fulfilling the inclusion and exclusion criteria. Then the collected data will be divided into two groups according to age either adolescent (12-18 years old) or adult group (after 18 years old). measurements will be done on the radiograph using digital software.	Procedure: first premolar extraction and complete canine retraction.; measurements on panoramic radiograph will be done after first premolar extraction and complete canine retraction.
adult group; Panoramic radiographs of finished orthodontic cases will be collected after fulfilling the inclusion and exclusion criteria. Then the collected data will be divided into two groups according to age either adolescent (12-18 years old) or adult group (after 18 years old). measurements will be done on the radiograph using digital software.	Procedure: first premolar extraction and complete canine retraction.; measurements on panoramic radiograph will be done after first premolar extraction and complete canine retraction.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Frequency of Good Root Parallelism	root paralellism between canine and second premolar	8 months

Collaborators and Investigators

• Sponsor: Cairo University

Publications and helpful links

General Publications

• Oshagh M, Momenidanaei S, Sardarian A, Alipour A, Roeinpeykar M, Khaksar Y. Root Parallelism of Canine and Second Premolar. 2014;3(3):176-81.
• Mayoral G. Treatment results with light wires studied by panoramic radiography. Am J Orthod. 1982 Jun;81(6):489-97. doi: 10.1016/0002-9416(82)90428-6.

Study record dates

Study Major Dates

• Study Start (ANTICIPATED): November 1, 2019
• Primary Completion (ANTICIPATED): June 1, 2020
• Study Completion (ANTICIPATED): September 1, 2020

Study Registration Dates

• First Submitted: October 23, 2019
• First Submitted That Met QC Criteria: October 24, 2019
• First Posted (ACTUAL): October 25, 2019

Study Record Updates

• Last Update Posted (ACTUAL): October 28, 2019
• Last Update Submitted That Met QC Criteria: October 24, 2019
• Last Verified: October 1, 2019

More Information

Terms related to this study

• Other Study ID Numbers: orthodontics 3-3-4

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Study Data/Documents

1. Clinical Study Report
   Information comments: this is the guiding study document reference

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No