RESUMEN
OBJECTIVES: To clinically compare the effects of broader archwires to standard archwires, using conventional brackets in both cases, on the transverse and incisor changes in maxillary and mandibular arches during leveling and alignment. MATERIALS AND METHODS: Fifty-two patients presenting with crowding were allocated into two groups; one group received the broad Damon archwires while the other received standard 3M OrthoForm III Ovoid archwires. All participants were treated with conventional brackets using similar archwire sequences (0.014, 0.018, 0.016 × 0.022/0.016 × 0.025, 0.019 × 0.025 NiTi/CuNiTi archwires). Digital casts were obtained from alginate impressions before treatment (T0) and six weeks after inserting 0.019 × 0.025 NiTi archwires (T1). Pretreatment (T0) and post-alignment (T1) lateral cephalograms were obtained for each patient. The primary outcomes were the changes in the transverse arch dimensions and incisor inclination. The secondary outcomes were the horizontal and vertical linear changes in incisor position. RESULTS: Complete data were collected for 47 patients. There was a significant increase in arch width during treatment within each group, except for upper inter-molar width in 3M group (P = 0.071). Damon wire induced a statistically significant increase in maxillary inter-second premolar width (P = 0.042), and mandibular inter-first premolar (P = 0.043), inter-second premolar (P = 0.008) and inter-molar widths (P = 0.033) compared to 3M group. The increase in incisor proclination and the linear change in incisor position were significant within each group, with less mandibular incisor proclination (P = 0.004) and horizontal advancement (P = 0.038) in the Damon group. CONCLUSIONS: Damon archwires created a comparatively greater increase in the maxillary inter-second premolar width and the mandibular inter-first premolar, inter-second premolar, and inter-molar widths, and less proclination and horizontal advancement in mandibular incisors. The study provides invaluable evidence that using broad archwires with self-ligating brackets is the reason behind any greater expansion observed in this system rather than the unique mechanical and biological features exerted by the self-ligating system. CLINICAL RELEVANCE: Our results suggest that Damon archwire might be a better alternative compared to the narrower standard archwires that are usually used with conventional brackets, especially in the mandibular arch, in cases where mild to moderate crowding is planned to be resolved with a non-extraction approach. However, as arch expansion in the absence of posterior crossbites raises the question of long-term stability, the reported advantage of the use of wide wires should be interpreted with caution and should be considered in the retention phase, bearing in mind that achieving a good post-treatment occlusion is important for enhancing post-treatment stability.
Asunto(s)
Cefalometría , Incisivo , Maloclusión , Diseño de Aparato Ortodóncico , Soportes Ortodóncicos , Alambres para Ortodoncia , Humanos , Femenino , Masculino , Maloclusión/terapia , Adolescente , Níquel/química , Arco Dental , Titanio/química , Resultado del Tratamiento , Técnicas de Movimiento Dental/instrumentación , Técnicas de Movimiento Dental/métodos , CobreRESUMEN
Despite the potential value of graduate-level research ethics training, most Middle East countries, including Jordan, do not routinely offer formal research ethics training. In students enrolled in Jordanian master's level graduate program in pharmacy, the current study assessed: 1- differences in pre- and post-enrollment exposure to research ethics core themes, 2- whether this exposure was through a formal course or in an informal setting, and 3- student attitudes towards research ethics education and the need for integrating a dedicated research ethics course into pharmacy graduate programs. A 12-item on-line survey was developed by the authors and disseminated to a convenience sample of current and former master-level pharmacy students in Jordan. A total of 61 eligible respondents completed the survey. A minority of respondents (38%) acknowledged receiving research ethics training prior to enrollment into a postgraduate pharmacy program with nearly half (16%) describing this training as informal. In comparison, a larger percentage of the total respondents (56%) had received research ethics training during their postgraduate program enrollment, with nearly half of those (25%) indicating that this training was informal. A majority of respondents reported a strong need for integrating a formal research ethics course into postgraduate pharmacy curriculum (90%) to support their research training and thesis writing (89%). Overall, the study revealed a notable lack of research ethics education for graduate-level pharmacy students in Jordan.
Asunto(s)
Farmacia , Estudiantes de Farmacia , Humanos , Estudios Transversales , Países en Desarrollo , Curriculum , Encuestas y Cuestionarios , Ética en InvestigaciónRESUMEN
INTRODUCTION: Congenital anomalies in the neck region, such as dermoid sinuses, pose diagnostic challenges in pediatrics. Surgical excisions are vital to prevent complications. PRESENTATION OF CASE: A 7-month-old male infant had presented with a congenital suprasternal dermoid sinus, which had been evident since birth. Imaging confirmed the diagnosis, prompting surgical intervention under general anesthesia. A delicate excision was performed, guided by a methylene blue dye injection, followed by histopathological confirmation. DISCUSSION: Dermoid sinuses typically manifest as cutaneous pits or sinus tracts, with a left-sided predominance and a female predilection. An accurate diagnosis relies on clinical examination and imaging studies to delineate the anomaly. Surgical excision remains crucial to prevent recurrence and complications. CONCLUSION: This case reaffirms the necessity of prompt and accurate diagnosis followed by surgical intervention for managing congenital dermoid sinuses. Ongoing research and collaborative studies are needed to further refine management strategies and improve outcomes for patients with these anomalies, particularly when presenting in atypical locations.