Evaluation of Different Periodontal Plastic Surgery Techniques for Gummy Smile Treatment

Not Applicable

Recruiting

• Conditions: Gummy Smile
• Interventions: Device: Peek device; Other: Crown lengthening/gingivectomy

• Registration Number: NCT05616715
• Lead Sponsor: Egas Moniz - Cooperativa de Ensino Superior, CRL

Brief Summary

Investigating different periodontal surgery techniques to treat gummy smile.

Detailed Description

Participants will be subdivided into 3 (three) groups:

1. Patients with upper lip hypermobility - surgery for device implantation in the anterior area of the maxilla;

2. Patients with short teeth and upper lip hypermobility - flap surgery/gingivectomy and device implantation; and

3. Patients who refuse implantation - flap surgery/gingivectomy;

Study Timeline

• Status Verified: 2022-09
• Study First Submitted: 2022-09-22
• Study First Submitted QC: 2022-11-07
• Study First Posted: 2022-11-15
• Last Update Submitted: 2023-01-04
• Last Update Posted: 2023-01-06
• Study Start: 2023-02-15
• Primary Completion: 2023-09-15
• Study Completion: 2023-12-15

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• Gummy smile due to two etiologies (combined or isolated);
• Short clinical crown of teeth due to the altered passive eruption;
• Upper lip hyperactivity

Exclusion Criteria

• Smokers;
• Pregnant or breastfeeding patients;
• Patients with systemic diseases that can affect the result of surgical treatment (such as diabetes, heart diseases and taking blood anticoagulant medication, blood diseases, immunodeficiency disease etc.);
• Cleft lip;
• Craniofacial syndrome;
• Facial alteration surgeries during the study;
• Active orto treatment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Subjects with gummy smile and with upper lip hypermobility	Peek device	Periodontal plastic surgery for peek device implantation with 4 screws in the anterior maxillary area
Subjects with gummy smile and with short teeth and upper lip hypermobility	Peek device	Gingivectomy/crown lengthening and device implantation in the anterior maxillary area. First crown lengthening procedure (CLP) will be performed creating a distance of 3mm between cementoenamel junction (CEJ). Next peek device will be position with 4 screws
Patiens who refuse device implantation - control group	Crown lengthening/gingivectomy	Gingivectomy/crown lengthening procedure

Primary Outcome Measures

Name	Time	Method
Change in Superior incisors proportion (height x length)	Baseline and week 24	Superior incisors height and lenght
Change in Gengiva exposure at rest and forced smile	Baseline and week 24	When lips are in rest position measure the amount of exposed gingiva and during a forced smile, make the same measure
Change in Periodontal probing	Baseline and week 24	Three probes (mesial, buccal and distal) for exposed teeth during smile
Change in Interlabial space at rest	Baseline and week 24	When in rest position, measure distance between lips
Change in Exposure of central incisors at rest	Baseline and week 24	Measurement between incisal border of central incisors and the border of the lower lip during smile (in millimeters)

Trial Locations

Locations (1)

Egas Moniz Cooperativa de Ensino Superior; 🇵🇹 Almada, Portugal