ABSTRACT
OBJECTIVES: Excessive gingival display (EGD), also known as gummy smile, has various causes, including altered passive eruption (APE) and hypermobile upper lip (HUL). This state-of-the art narrative review explores current concepts regarding soft tissue EGD etiologies and the contemporary modalities available for APE or HUL treatment. DATA, SOURCES, STUDY SELECTION: Literature search was conducted for a narrative review on the etiology, diagnosis, and treatment of EGD caused by APE and HUL. Searching for articles was carried out in PubMed and Google Scholar. Published articles, including case reports, case series, observational and interventional clinical trials, and critical appraisals of the literature (e.g., systematic reviews) on the etiology, diagnosis, and treatment of EGD caused by APE and HUL were retrieved and reviewed. Particular focus was placed on novel treatment modalities introduced in the last five years. CONCLUSIONS: Recent research evidence indicates that APE and HUL are the two major soft tissue-based EGD etiologies. Aesthetic crown lengthening (ACL) and lip repositioning surgery (LRS) are the established surgical treatment modalities for APE and HUL, respectively. The last few years have seen the introduction of new techniques for APE and HUL management, an expansion of the available ACL and LRS technique variations, and additional evidence further supporting the effectiveness of these two procedures. Several of the recently introduced approaches offer unique, innovative, and potentially impactful concepts. However, for many of these newly described treatments the available evidence is limited to case reports and the exact indications remain to be adequately defined. CLINICAL SIGNIFICANCE: Altered passive eruption and hypermobile upper lip are the common soft tissue causes of gummy smile and can be successfully managed through aesthetic crown lengthening and lip repositioning surgery, respectively. A wide range of newly introduced approaches promises to further facilitate gummy smile treatment and improve outcomes.
Subject(s)
Gingiva , Hominidae , Animals , Lip/surgery , Esthetics, Dental , SmilingABSTRACT
Introducción: La erupción dentaria es un proceso fisiológico que puede ser alterado por múltiples causas congénitas o ambientales. Objetivo: Determinar la cronología de la erupción dentaria permanente y su relación con factores influyentes en adolescentes de 13 años del municipio Sancti Spíritus. Métodos: Se realizó un estudio descriptivo, transversal en el municipio Sancti Spíritus entre septiembre 2017 y junio de 2019. La población estuvo constituida por 1 355 adolescentes de 13 años pertenecientes a todas las escuelas secundarias básicas urbanas de este municipio y por muestreo estratificado en dos etapas se seleccionó una muestra de 406 adolescentes. Se utilizaron métodos del nivel teórico, empírico y estadístico-matemático. Resultados: Se constató que el 22,9 % de los adolescentes presentaron la cronología de la erupción dentaria atrasada respecto a las medidas de Mayoral con predominio del sexo masculino (57 %) y el grupo étnico europoide (83,9 %). Los factores que más influyeron fueron la retención de dientes temporales con 72 %, el sexo con 57 % y los antecedentes hereditarios con 49,5 %, los tres con gran significación estadística. Conclusiones: Casi la cuarta parte de los adolescentes de 13 años estudiados del municipio Sancti Spíritus presentan atraso en la cronología de la erupción dentaria permanente respecto a los valores de Mayoral. Los del sexo masculino presentaron el doble de riesgo para una cronología atrasada y no existieron diferencias en cuanto al grupo étnico. Los factores que más influyeron fueron la herencia, el sexo y la retención de dientes temporales.
Introduction: Tooth eruption is a physiological process that can be altered by multiple congenital or environmental causes. Objective: To determine the chronology of permanent dental eruption and its relationship with influencing factors in 13-year-old adolescents from the Sancti Spíritus municipality. Methods: A cross-sectional descriptive study was carried out in the Sancti Spíritus municipality from September 2017 to June 2019. The population consisted of 1 355 13-year-old adolescents belonging to all the urban basic secondary schools of this municipality and by stratified sampling in two stages. A sample of 406 adolescents was selected. Theoretical, empirical and statistical-mathematical level methods were used. Results: It was found that 22.9% of the adolescents presented delayed dental eruption chronology with respect to the Mayoral measures, with a predominance of males (57%) and the Europoid ethnic group (83.9%). The factors that most influenced were the retention of temporary teeth with 72%, sex with 57% and hereditary history with 49.5%, the three variables with great statistical significance. Conclusions: Almost a quarter of the 13-year-old adolescents studied in the municipality of Sancti Spíritus presents a delay in the chronology of permanent dental eruption with respect to the Mayoral values. Those of the masculine sex presented double the risk for a delayed chronology and there were no differences regarding the ethnic group. The factors that most influenced were heredity, sex and retention of temporary teeth.
