Determining Shapes and Dimensions of Dental Arches for the Use in Lingual Technique.

This study aims to determine the shape and dimension of dental arches from a lingual perspective, and determine shape and size used for lingual Orthodontics.

Study Overview

• Status: Completed
• Conditions: Dental Arch Relationship Anomaly
• Intervention / Treatment: Other: general group

Detailed Description

The study sample comprised 70 Caucasian Brazilian individuals with normal occlusion and at least four of Andrew's six keys. Maxillary and mandibular dental casts were digitized (3D) and the images were analyzed by Delcam Power SHAPET 2010 software. Landmarks on the lingual surface of teeth were selected to determine the shape and size of dental arches.

• Study Type: Observational
• Enrollment (Actual): 70

Contacts and Locations

Study Locations

• Brazil
  • São Paulo, Brazil, 04020041
    • Disciplina de Otorrinolaringologia Pediatrica

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 15 years to 21 years (Child, Adult)
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

70 Caucasian Brazilian individuals (28 men and 42 women) with an average age of 16.4 years

Description

Inclusion Criteria:criterion was that individuals should be at least 15 years of age all permanent teeth in occlusion -

Exclusion Criteria:with no odontogenic abnormalities

-

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort

Intervention / Treatment

general group; Comprised 70 caucasian Brazilian individuals with normal occlusion and at least four of Andrew's six keys.

Other: general group; The sample comprised maxillary and mandibular dental casts of 70 Caucasian Brazilian individuals (28 men and 42 women) with an average age of 16.4 years, all of which had natural normal occlusion with at least four of the six keys to normal occlusion. 14 The first item of the first key was considered essential for sample selection(Angle Class I molar relationship). Another inclusion criterion was that individuals should be at least 15 years of age with no odontogenic abnormalities and all permanent teeth in occlusion.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Statistic study	describe arch form similar a mushroom arch	six months

Collaborators and Investigators

• Sponsor: Federal University of São Paulo
• Investigators: Principal Investigator: Shirley SN Pignatari, PHD, Federal University of São Paulo

Publications and helpful links

General Publications

• Lombardo L, Saba L, Scuzzo G, Takemoto K, Oteo L, Palma JC, Siciliani G. A new concept of anatomic lingual arch form. Am J Orthod Dentofacial Orthop. 2010 Sep;138(3):260.e1-260.e13; discussion 260-1. doi: 10.1016/j.ajodo.2010.04.022.

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2016
• Primary Completion (Actual): November 1, 2017
• Study Completion (Actual): March 30, 2019

Study Registration Dates

• First Submitted: November 28, 2017
• First Submitted That Met QC Criteria: November 28, 2017
• First Posted (Actual): December 4, 2017

Study Record Updates

• Last Update Posted (Actual): August 14, 2023
• Last Update Submitted That Met QC Criteria: August 9, 2023
• Last Verified: August 1, 2023

More Information

Terms related to this study

• Keywords: Orthodontics; Dental arch; Orthodontic appliance design.
• Other Study ID Numbers: FUSãoPaulo15

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: The 70 pairs of cast models were digitized with a 3D Dental Wings™ Scanner (model DW5-140, Montreal, Quebec, Canada). Images were analyzed by Delcam Power SHAPE™ software (2010, Birmingham, UK).

Drug and device information, study documents

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