Evaluation of the success of predicted dental changes with clear-aligner treatment: A pilot study.

Objective: This pilot study concerned evaluation of the success of predicted dental changes in patients presenting with Class I malocclusions who were submitted to treatment aligners, using the superimposition. Methods: The digital models were superimposed and analyzed using 3DSlicer 5.0 software. Treatment and predicted changes regarding horizontal and vertical linear displacements, mesiodistal rotations, and incisor buccolingual tipping were quantified. The success rates were calculated by dividing the mean treatment change amount by the predicted change amount. Results: Lower-incisor intrusion was the most accurate of the predicted vertical displacements (86.96 %), and buccal expansion of upper canines (99.32 %) and mesial translation of the lower incisors (98.57 %) were the most accurate horizontal linear displacements. The predicted rotation was achieved with the highest accuracy for lower incisors (75.69 %). Incisor buccolingual tipping success rates ranged between 45.78 % and 69.31 %. Low accuracy of predicted changes was found for upper-molar extrusion (10.23 %) and constriction (8.91 %). However, minimal corrections in these directions were planned. Conclusions: Dental changes for all regions of maxillary and mandibular arches could be evaluated. High success rates were observed for most of the movements planned for ClearCorrect aligner therapy.

Influence of pain duration and severity on oral health-related quality of life and patient satisfaction during adult treatment with clear aligners.

BACKGROUND: This study aims to compare the impact of pain on quality of life and patient satisfaction during treatment with aligners. METHODS: Ninety-four subjects in active treatment were invited to answer self-reported questions concerning pain severity and duration, occurrence of other signs and symptoms, and level of satisfaction with their treatment. Also, the OHIP-14 questionnaire was applied to assess patients' OHRQoL. RESULTS: Ninety-four patients (49 women and 45 men) answered the survey. Pain duration of 1-3 days was reported by 69.1% of patients (n = 60). For those who reported pain (n = 84), it was considered mild severity by 42.9% and moderate by 52.4%. Almost sixty-four percent of the sample were very satisfied with the aligner's aesthetics (n = 60) and forty-nine percent were satisfied with treatment in general (n = 46). Mean OHIP-14 score was 3.36 ± 2.54. OHRQoL was significantly associated with pain severity, whereas patients who reported having experienced moderate pain presented a significantly higher mean OHIP-14 score than those who reported having experienced mild pain (3.92 ± 1.93 and 2.69 ± 2.83, respectively; p = 0.036). The "psychological discomfort" OHIP-14's domain was the most influenced by the level of pain. CONCLUSION: Pain severity significantly influenced OHRQoL, in adult patients under treatment with clear aligners. However, high levels of patient satisfaction were reported, regardless of pain duration or severity.

Avaliação da percepção e da satisfação estética de pacientes que foram tratados com toxina botulínica tipo A para correção do sorriso gengival / Assessment of patients' perception and satisfaction with the botulinum toxin type A treatment for gummy smile

O sorriso gengival é caracterizado pela exposição excessiva da gengiva ao sorrir. Esta alteração pode ser classificada em anterior, posterior, mista e assimétrica. Sua etiologia está associada a diversos fatores, tais como gengivais, esqueléticos e musculares. A toxina botulínica tipo A tem sido bastante utilizada na Odontologia para a correção do sorriso gengival, tendo como vantagem ser um procedimento pouco invasivo, seguro e eficaz. Esta pesquisa teve como objetivo avaliar, por meio de questionários, a satisfação dos pacientes em relação aos resultados obtidos com a aplicação da toxina botulínica tipo A para a correção do sorriso gengival. O questionário foi respondido antes da aplicação da toxina e 15 dias após. Participaram da pesquisa um total de 15 pacientes. Os resultados obtidos indicaram que os participantes classificaram seus sorrisos, após a aplicação da toxina botulínica, como muito bom e excelente. Todos os participantes da pesquisa relataram que ao sorrir não apresentavam exposição gengival e sentiam-se confortáveis durante o sorriso após a aplicação da toxina. Portanto, concluiu-se que os participantes da presente pesquisa apresentaram alto grau de satisfação com os resultados obtidos no tratamento do sorriso gengival com a aplicação da toxina botulínica tipo A (AU).

Gummy smile is characterized by gingival tissue excessive exposure while smiling. It can be classified as anterior, posterior, mixed, and asymmetric. Its etiology is associated with several factors, such as gingival, skeletal, and muscular. Botulinum toxin type A has been widely used in Dentistry for gingival smile correction with the advantage of being a less invasive, safe, and effective procedure. The purpose of this study was to investigate patient satisfaction in relation to the results obtained with botulinum toxin type A application for gummy smile correction using questionnaires. The questionnaire was answered before and after 15 days of the toxin application. A group of 15 patients participated of the study. The results showed that the participants classified their smiles, after the application of botulinum toxin, as very good and excellent. All study participants reported no more discomfort with gingival exposure when smiling and everyone felt comfortable with the smile after botulinum toxin application. Therefore, it was concluded that all participants were satisfied with the results obtained after botulinum toxin type A gummy smile treatment (AU).