Smile dynamics: A comparative study of Fijians and NZ Europeans.

Background: The Fijian 'Bula Smile' is often described as the world's friendliest; however, its description remains anecdotal.

Objective: This study aimed to describe and compare the dynamics of Fijians' smiles with those of New Zealand Europeans.

Methods: An observational study was conducted on two ethnic groups, Fijians (FJ; N = 23) and New Zealand Europeans (NZ; N = 23), age- and gender-matched.

Malocclusion severity and smile features: Is there an association?

Introduction: This observational study investigated the relationship between malocclusion and smiling.

Methods: Adolescents and young adults (n = 72; aged 16-25 years) were identified according to their Dental Aesthetic Index (DAI) and allocated to 3 groups: (1) malocclusion group (n = 24; DAI ≥31), (2) retention group (n = 24; pretreatment DAI ≥31) with a prior malocclusion that had been corrected by orthodontic treatment, (3) control group with no-to-minor malocclusion (n = 24; DAI ≤25). Participants were requested to watch an amusing video.

Automated detection of smiles as discrete episodes.

Background: Patients seeking restorative and orthodontic treatment expect an improvement in their smiles and oral health-related quality of life. Nonetheless, the qualitative and quantitative characteristics of dynamic smiles are yet to be understood.

Objective: To develop, validate, and introduce open-access software for automated analysis of smiles in terms of their frequency, genuineness, duration, and intensity.

A qualitative meta-synthesis of research into patients' past experiences and perceptions of orthodontic treatment outcomes.

Background: There is a growing body of evidence emphasizing the importance of research into patient-centred experience in orthodontics. Benefits following orthodontic treatment are mainly related to improved aesthetics and psychosocial outcomes. However, treatment experience from the perspective of orthodontic patients is yet to be fully understood.