NCT04375540

Vertical Gingival Display Changes Associated With Upper Premolars Extraction

Vertical Gingival Display Changes Associated With Upper Premolars Extraction Orthodontic Treatment in Gummy Smile Patients: A Prospective Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 76 (actual)
• Sponsor: Jordan University of Science and Technology · Academic / Other
• Sex: All
• Age: 17 Years – 28 Years
• Healthy volunteers: Accepted

Summary

To investigate and compare vertical gingival display (VGD) changes associated with upper premolars extraction during orthodontic treatment.

Detailed description

Seventy-six subjects who met the inclusion criteria were divided into one of 3 groups according to their treatment modalities as follows: group 1: upper first premolars extraction (24 patients, aged 21.56±3.19 years); group 2: upper second premolars extraction (26 patients, aged 22.16±3.59 years) and group 3: no orthodontic intervention was performed (happy with their teeth) (26 subjects, aged 20.45±3.29 years). Initial records (radiographs, study casts and clinical photographs) were taken for all subjects. The same records were taken post treatment for treated subjects only. The Pre- and post- treatment VGD and lip length in static and dynamic positions and the amount of upper teeth retractions were recorded. The paired t-test and ANOVA test were used to detect treatment changes and differences between studied groups, respectively. Factors affecting VGD were investigated using backward stepwise linear regression analysis.

Conditions

• Gummy Smile
• Orthodontic Treatment

Interventions

Type	Name	Description
PROCEDURE	Upper first premolars extractions	Fixed orthodontic treatment with upper first premolars extraction and space closure using 0.019X0.025 SS AW and elastic chain.
PROCEDURE	Upper second premolars extraction	Fixed orthodontic treatment with upper second premolars extraction and space closure using 0.019X0.025 SS AW and elastic chain.

Timeline

• Start date: 2016-09-01
• Primary completion: 2018-12-01
• Completion: 2018-12-01
• First posted: 2020-05-05
• Last updated: 2020-05-07

Locations

1 site across 1 country: Jordan