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Clinical Trial Summary

Background: The demand for beauty is increasing in society as everyone is looking for cosmetic improvement, including gummy smile correction. Object: This study aims to evaluate the efficacy of a combination of a clinical tooth crowns lengthening surgery following by a BTX-A injection in gummy smile treatment upon based on clinical assessment and photography Method: An uncontrolled longitudinal study was implemented at the Faculty of Odonto-Stomatology (FOS) of the University of Medicine and Pharmacy at Ho Chi Minh City (UMPH), Viet Nam, from August 2020 to May 2021. Twenty patients (19 females and one male) at a mean age of 24 years old who came for gummy smile chief complaint were included in the study. Subjects were operated to lengthen the clinical crown following an additional botulinum toxin A injection two months post-surgery. All the participants answered the smile esthetic satisfactory questions and were photographed at the time before treatment (T0), two months after clinical crown lengthening surgery (T1), two weeks (T2), and two months (T3) follow-up visits after BTX-A injection. The gingival exposure (GE) and clinical crown length (CCL) were measured at each time point for analysis.

Clinical Trial Description


Study Design

Related Conditions & MeSH terms

NCT number NCT05057286
Study type Interventional
Source University of Medicine and Pharmacy at Ho Chi Minh City
Status Completed
Phase Phase 4
Start date August 1, 2020
Completion date May 31, 2021

See also
  Status Clinical Trial Phase
Completed NCT04375540 - Vertical Gingival Display Changes Associated With Upper Premolars Extraction N/A
Completed NCT04553952 - The Distribution of Gingival Display and Possible Related Factors Resulting in Gummy Smile
Not yet recruiting NCT03804281 - Clinical Evaluation of Conventional Versus Microsurgical Techniques of Esthetic Crown Lengthening N/A