The Distribution of Gingival Display and Possible Related Factors Resulting in Gummy Smile

This study primarily aimed to evaluate smile line distribution and prevalence of gummy smile in patients. The secondary purpose was to examine parameters that might be risk factors for gummy smile.

Completed

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Key information

Conditions

Gummy Smile

Age range

20 year–61 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Baskent University,Department of Dentistry

Ankara, Turkey (Türkiye)

About this study

this study primarily aimed to evaluate smile line distribution and prevalence of gummy smile in patients. The secondary purpose was to examine parameters that might be risk factors for gummy smile.Age, gender, marital status, medical history, and medication status of the patients were recorded. All individuals were instructed to sit on a dental chair and the measurments were made by using a millimetric ruler.Next, the patients were grouped according to Liebart's classification by gingival display at maximum smile as follows: Class 1.Excessive gingival display (Gummy smile): ≥ 3mm gingival display Class 2.High smile line: 0-2 mm of gingival display Class 3. Average smile line: Dental papilla is visible. Class 4. Low smile line: Gingival margin, dental papilla is not visible at all. Presence of altered passive eruption, short lip and hypermobile upper lip were also evaluated.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

presence of teeth in upper jaw
Age between 18-65 years

Exclusion criteria

Patients who have received and/or are receiving orthodontic treatment and patients who received gummy smile treatment were excluded.

Treatment and study plan

Measurement of gingival display

Other

All individuals were instructed to sit on a dental chair and the measurements were made by using a millimetric ruler. Next, the patients were grouped according to Liebart's classification by gingival display at maximum smile as follows:

Class 1.Excessive gingival display (Gummy smile): ≥ 3mm gingival display Class 2.High smile line: 0-2 mm of gingival display Class 3. Average smile line: Dental papilla is visible. Class 4. Low smile line: Gingival margin, dental papilla is not visible at all.

Primary outcomes

Measurement of gingival display

Time frame: 1 minute

All individuals were instructed to sit on a dental chair and the measurments were made by using a millimetric ruler. Next, the patients were grouped according to Liebart's classification by gingival display at maximum smile as follows:

Class 1.Excessive gingival display (Gummy smile): ≥ 3mm gingival display Class 2.High smile line: 0-2 mm of gingival display Class 3. Average smile line: Dental papilla is visible. Class 4. Low smile line: Gingival margin, dental papilla is not visible at all.

Sponsors and collaborators

Lead sponsor

Baskent University

Other

Registry information

Official study title

Evaluating the Distribution of Gingival Display and Possible Related Factors Resulting in Gummy Smile

Important dates

Study start: 2019
Primary completion: 2020
Study completion: 2020
First posted: Sep 18, 2020
Registry last updated: Sep 18, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed